Arkansas Research: Projects, Research Publications, Presentations, Thesis and Dissertations, Technical Publications

Arkansas Research Activities

Coyote carrying white-tailed deer fawn at Felsenthal National Wildlife Refuge.

The Cooperative Research Units Program conducts research on a wide range of disciplines related to fish, wildlife, and natural resource management. The programs offer Federal and State agencies access not only to unit scientists, but also to university expertise and facilities available at each of the 40 cooperating universities. Most research projects are carried out by graduate students participating with and/or under the direction of unit or other university scientists.

The research may be of local, regional, national, or international interest. The research programs conducted by units are approved as directed by the Coordinating Committee overseeing each unit.

Projects

Research Publications

Research Publications	Publication Date
Yarra, A.N. and D.D. Magoulick. 2020. Effect of stream permanence on predation risk of lotic crayfish by riparian predators. Southeastern Naturalist 19:673-691. doi.org/10.1656/058.019.0407	November 2020
Yarra, A.N. and D.D. Magoulick. 2019. Modeling effects of invasive species and drought on crayfish extinction risk and population dynamics. Aquatic Conservation: Marine and Freshwater Ecosystems 29:1-11. DOI:10.1002/aqc.2982	January 2019
Yarra, A.N. and D.D. Magoulick. 2018. Stream permanence is related to crayfish occupancy and abundance in the Ozark Highlands, USA. Freshwater Science 37:54–63. DOI:10.1086/696020	March 2018
Westhoff, J.T., R.J. DiStefano and D.D. Magoulick. 2012. Do environmental changes or juvenile competition act as mechanisms of species displacement in crayfishes? Hydrobiologia	February 2012
Welch, J. R., D. G. Krementz, and J. B. Berdeen. 2001. Management of Fields for Nocturnal Use by Wintering American Woodcock. Georgia Journal of Science 59:101-107.	June 2001
Veon, J.T., B.A. DeGregorio, L.W. Naylor, K.J. Reinecke, B.C. Dabbert, D.W. Demarest, K.M. Hartke, and D.G. Krementz. 2023. Body mass dynamics in wintering mallards (Anas platyrhynchos) in the lower mississippi alluvial valley. Global Ecology and Conservation 41: e02368 \| Download	January 2023
Thatcher, B. S., D. G. Krementz, and M. Woodrey. 2006. Henslow's sparrow winter survival estimates and response to prescribed burning. Journal of Wildlife Management 70:198-206	January 2006
Tetzlaff, S.J., Sperry, J.H. and DeGregorio, B.A., 2022. You can go your own way: No evidence for social behavior based on kinship or familiarity in captive juvenile box turtles. Applied Animal Behaviour Science, 248, p.105586. \| Download	February 2022
Tetzlaff, S.J., J.H. Sperry, B.A. Kingsbury, and B.A. DeGregorio. 2019. Captive-rearing duration might be more important than environmental enrichment for enhancing turtle head-starting success. Global Ecology and Conservation 20, p.e00797. \| Download	September 2019
Tetzlaff, S.J., Estrada, A., DeGregorio, B.A. and Sperry, J.H., 2020. Identification of Factors Affecting Predation Risk for Juvenile Turtles Using 3D Printed Models. Animals, 10(2), p.275. \| Download	February 2020
Stober, J. M., and D. G. Krementz. 2006. Variation in Bachman's sparrow territory size at the Savannah River Site, South Carolina. Wilson Bulletin 118:138-144.	June 2006
Stober, J. M., and D. G. Krementz. 2001. Survival and reproductive biology of the Bachman's sparrow. Proc. Southeast Assoc. Fish Wildl. Agencies 54:383-390.	September 2001
Stewart, C.A., and V.R. Frawley (eds.), D.E. Andersen, J.G. Bruggink, T.R. Cooper, D.R. Dessicker, D.G. Krementz, S.L. Mayhew, M.W. Olinde, and G.J. Roloff (assoc. eds.). 2010. Proceedings of the Tenth American Woodcock Symposium. Michigan Department of Natural Resources and Environment, Lansing, Michigan, U.S.A. \| Download	April 2010
Seaman, B. D., and D. G. Krementz. 2001. Movements and survival of Bachman's sparrows in response to prescribed summer burns in South Carolina. Proc. Southeast Assoc. Fish Wildl. Agencies 54:227-240	September 2001
Scott, M. K., and D. D. Magoulick. 2008. Swimming performance of five warmwater stream fish species. Transactions of the American Fisheries Society 137:209-215.	January 2008
Scott L. Morford, Brady W. Allred, Dirac Twidwell, Matthew O. Jones, Jeremy D. Maestas, Caleb P. Roberts, David E. Naugle. Herbaceous production lost to woody encroachment in U.S. rangelands. Journal of Applied Ecology. https://doi.org/10.1111/1365-2664.14288 \| Abstract	October 2023	Rangelands of the United States provide ecosystem services that sustain biodiversity and rural economies. Native tree encroachment is a recognized and long-standing conservation challenge to these landscapes, but its impact is often overlooked due to the slow pace of tree invasions and the positive public perception of trees. Here we show that tree encroachment is a dominant change agent in U.S. rangelands; tree cover has increased by more than 76,000 km2 over 30 years, and more than 25% of U.S. rangelands are now experiencing sustained tree cover expansion. Further, we use machine learning methods to estimate the potential herbaceous production (forage) lost to tree encroachment. Since 1990 roughly 315 Tg of herbaceous biomass has been lost, totaling some $5 billion in foregone revenue to agricultural<br>producers. These results suggest that tree encroachment is similar in scale and magnitude to row-crop conversion, another primary cause of rangeland loss in the U.S. Prioritizing conservation efforts to prevent tree encroachment in rangelands can bolster ecosystem and economic sustainability of these landscapes, particularly among privately-owned lands threatened by land-use conversion.
SNAPSHOT USA 2020: A second coordinated national camera trap survey of the United States during the COVID-19 Pandemic. 2022. Ecology. DOI: 10.1002/ecy.3775 Roland Kays^1,2, Michael V. Cove², Jose Diaz³, Kimberly Todd³, Claire Bresnan³, Matt Snider¹,Thomas E. Lee, Jr.⁴, Seth C. Crockett⁴, Anthony P. Crupi⁵, Katherine C.B. Weiss^6,7, Helen Rowe⁸, Tiffany Sprague⁸, Jan Schipper⁷, Christopher A. Lepczyk⁹, Jean E. Fantle-Lepczyk⁹, Jon Davenport¹⁰, Zach Farris¹⁰, Jacque Williamson¹¹, M. Caitlin Fisher-Reid¹², Drew Rezendes¹², Alexandra J. Bebko¹², Petros Chrysafis¹³, Alex J. Jensen¹⁴, David S. Jachowski¹⁴, Katherine C. King¹⁵, Brandon McDonald¹⁵, Daniel J. Herrera¹⁶, Marius van der Merwe¹⁷, Robert V. Horan III¹⁹, Michael S. Rentz²⁰, LaRoy S.E. Brandt²¹, Christopher Nagy²², Sean P. Maher²⁴, Andrea K. Darracq²⁵, George Hess³, Matthew E. Gompper²⁶, Stephen L. Webb²⁷, John P. Vanek²⁸, Diana J. R. Lafferty²⁹, Tru Hubbard²⁹, Jorie Favreau³¹, Jack Fogarty³¹, Steven Hammerich³³, Michelle Halbur³³, Morgan Gray³³, Christine C. Rega-Brodsky³⁴, Caleb Durbin³⁴, Elizabeth A. Flaherty³⁵, Jarred Brooke³⁵, Stephanie S. Coster³⁶, Richard G. Lathrop³⁷, Katarina Russell³⁷, Daniel A. Bogan³⁸, Hila Shamon¹, Robert C. Lonsinger⁴², M. Teague O'Mara⁴³, Justin A. Compton⁴⁴, Melinda Fowler⁴⁴, Erika L. Barthelmess⁴⁵, Katherine E. Andy⁴⁵, Jerrold L. Belant⁴⁶, Dean E. Beyer, Jr.⁴⁷, Daniel G. Scognamillo⁴⁸, Chris Schalk⁴⁸, Caroline N. Ellison⁵⁰, Chip Ruthven⁵⁰, Sarah Fritts⁵¹, Jaquelyn Tleimat⁵¹, Mandy Gay⁵¹, Christopher A. Whittier⁵², Sean A. Neiswenter⁵³, Robert Pelletier⁵³, Brett A. DeGregorio⁵⁴, Erin K. Kuprewicz⁵⁵, Miranda L. Davis⁵⁵, Carolina Baruzzi⁵⁷, Marcus A. Lashley⁵⁶, David Mason⁵⁶, Derek R. Risch⁵⁸, Maximilian L. Allen^59,60, Laura S. Whipple⁶⁰, Jinelle H. Sperry⁶¹, Patrick Wolff⁶¹, Robert H. Hagen⁶², Alessio Mortelliti⁶³, Amay Bolinjcar⁶³, Marketa Zimova⁶⁸, Sean T. Giery⁷⁰, Summer D. Higdon⁷², Ronald S. Revord⁷², Christopher P. Hansen⁷³, Joshua J. Millspaugh⁷³, Adam Zorn⁷⁴, Nathaniel H. Wehr⁷⁵, Brian D. Gerber⁷⁷, Kylie Rezendes⁷⁷, Jessie Adley⁷⁷, Jennifer Sevin⁷⁸, Austin M. Green⁷⁹, Çağan H. Şekercioğlu^79,80, Mary E. Pendergast⁸¹, Kayleigh Mullen⁸¹, Tori Bird^81b, Andrew J. Edelman⁸², Tim Hawig⁸², Joanne R. Wasdin⁸², Andrea Romero⁸³, Brian J. O'Neill^83b[KR1] , Noel Schmitz^83b, Rebecca A Vandermus⁸³, Jesse M. Alston⁸⁴, Kellie M. Kuhn⁸⁵, Damon B. Lesmeister⁸⁶, Cara L. Appel⁸⁷, Christopher Rota⁸⁸, Jennifer L. Stenglein⁸⁹, Christine Anhalt-Depies⁸⁹, Carrie Nelson⁹⁰, Robert A. Long⁹¹, Paula MacKay⁹¹, Kathryn R. Remine⁹¹, Mark J. Jordan⁹², Mark Elbroch⁹³, Dylan Bergman⁹⁴, Sara Cendejas-Zarelli⁹⁵, Kim Sager⁹⁵, Haydée Hernández-Yáñez³, William J. McShea³ \| Abstract \| Download	April 2022	<b>Abstract</b>: Managing wildlife populations in the face of global change requires regular data on the abundance and distribution of wild animals but acquiring these over appropriate spatial scales in a sustainable way has proven challenging. Here we present the data from Snapshot USA 2020, a second annual national mammal survey of the United States of America. This project involved xx scientists setting camera traps in a standardized protocol at 1481 locations across 102 arrays in 43 states for a total of 51,988 trap-nights of survey effort. Most (58) of these arrays were also sampled during the same months (September and October) in 2019, providing a direct comparison of animal populations in two years that include data from before and during the COVID-19 Pandemic. All data were managed by the eMammal system, with all species identifications checked by at least two reviewers. In total we recorded 114,749 detections of 77 species of wild mammals, 9200 detections of at least 25 species of birds, 15,847 detections of seven domestic animals and 23,705 detections of humans or their vehicles. Spatial differences across arrays explained more variation in the relative abundance than temporal variation across years for all 38 species modeled, although there are examples of significant site-level differences between years for many species. Temporal results show how species allocate their time and can be used to study species interactions, including between humans and wildlife. These data provide a snapshot of the mammal community of the USA for 2020 and will be useful for exploring the drivers of spatial and temporal changes in relative abundance and distribution, and the impacts of species interactions on daily activity patterns.
Ruther, E.V., M Asher, G. Christie, C. Gale, A. Massey, C. Massery, C.R. Middaugh, J. Veon, and B.A. DeGregorio. 2021. Northern Bobwhite Occupancy Patterns on Multiple Spatial Scales Across Arkansas. Journal of Fish and Wildlife Management 12: 502-512 \| Download	December 2021
Ronke, M. E., and D. G. Krementz. 2015. Changes in distribution of Canada geese nesting in Arkansas. Human Wildlife Interactions 9:101-109.	March 2015
Rodman, A., K.R. Brye, D.D. Magoulick and S. Todd. 2019. Population characteristics of Ozark Bass (Ambloplites constellatus) in the Upper White River Basin of Northern Arkansas. Natural Resources 10:121-138. DOI: 10.4236/nr.2019.105009	January 2019
Roberts, C.P., Naugle, D., Allred, B.W., Donovan, V.M., Fogarty, D.T., Jones, M.O., Maestas, J.D., Olsen, A.C., Twidwell, D. New possibilities to track rangeland productivity at multiple scales and quantify conservation outcomes. Journal of Environmental Management. https://doi.org/10.1016/j.jenvman.2022.116359. \| Abstract	December 2022	Historically, relying on plot-level inventories impeded our ability to quantify large-scale change in plant biomass, a key indicator of conservation interventions in rangeland systems. Recent technological advances enable assessment at scales appropriate to inform management by providing spatially comprehensive estimates of productivity that are partitioned by plant functional group across all contiguous US rangelands. We partnered with the Sage Grouse and Lesser Prairie-Chicken Initiatives and the Nebraska Natural Legacy Project to demonstrate the ability of these new datasets to quantify multi-scale changes and heterogeneity in plant biomass following mechanical tree removal, prescribed fire, and prescribed grazing. In Oregon’s sagebrush steppe, for example, juniper tree removal resulted in a 21% increase in one pasture’s productivity and an 18% decline in another. In Nebraska’s Loess Canyons, perennial grass productivity initially declined 80% at sites invaded by trees that were prescriptively burned, but then fully recovered post-fire, representing a 492% increase from nadir. In Kansas’ Shortgrass Prairie, plant biomass increased 4-fold (966,809 kg/ha) in pastures that were prescriptively grazed, with gains highly dependent upon precipitation as evidenced by sensitivity of remotely sensed estimates (SD ±951,308 kg/ha). Our results emphasize that next-generation remote sensing datasets empower land managers to move beyond simplistic control versus treatment study designs to explore nuances in plant biomass in unprecedented ways. New remotely-sensed products also accelerate adaptive management and communicate wildlife and livestock forage benefits from management to diverse stakeholders.
Roberts, C. P., Scholtz, R., Fogarty, D. T., Twidwell, D., & Walker Jr, T. L. (2022). Large‐scale fire management restores grassland bird richness for a private lands ecoregion. Ecological Solutions and Evidence, 3(1), e12119. \| Abstract \| Download	January 2022	Of all terrestrial biomes, grasslands are losing the most biodiversity the most rapidly, so there is a critical need to document and learn from large-scale restoration successes. In the Loess Canyons ecoregion of the Great Plains, USA, an association of private ranchers and natural resource agencies has led a multi-decadal, ecoregion-scale initiative to combat the continued loss of grasslands to woody plant encroachment by restoring large-scale fire regimes. Here, we use 14 years of fire treatment history with 6 years of grassland bird monitoring and remotely-sensed tree cover data across 136,767 hectares of privately-owned grassland to quantify outcomes of large-scale grassland restoration efforts. Grassland bird richness increased across 65% (90,032 ha) of the Loess Canyons, and woody plant cover decreased up to 55% across 25% (7,408 ha) of all fire-treated areas. This was accomplished with extreme fire treatments that killed mature trees, were large (mean annual area burned was 3,100 ha), spatially clustered, and straddled boundaries between invasive woodlands and remaining grasslands—not heavily-infested woodlands. Findings from this study provide the first evidence of human management reversing the impacts of woody encroachment on grassland birds at an ecoregion scale.
Roberts CP, Uden DR, Allen CR, Angeler DG, Powell LA, Allred BW, Jones MO, Maestas JD, Twidwell D. 2022. Tracking spatial regimes in animal communities: implications for resilience-based management. Ecological Indicators. doi.org/10.1016/j.ecolind.2022.108567 \| Abstract \| Download	January 2022	Spatial regimes (the spatial extents of ecological states) exhibit strong spatiotemporal order as they expand or contract in response to retreating or encroaching adjacent spatial regimes (e.g., woody plant invasion of grasslands) and human management (e.g., fire treatments). New methods enable tracking spatial regime boundaries via vegetation landcover data, and this approach is being used for strategic management across biomes. A clear advancement would be incorporating animal community data to track spatial regime boundaries alongside vegetation data. In a 41,170-hectare grassland experiencing woody plant encroachment, we test the utility of using animal community data to track spatial regimes via two hypotheses. (H1) Spatial regime boundaries identified via independent vegetation and animal datasets will exhibit spatial synchrony; specifically, grassland:woodland bird community boundaries will synchronize with grass:woody vegetation boundaries. (H2) Negative feedbacks will stabilize spatial regimes identified via animal data; specifically, frequent fire treatments will stabilize grassland bird community boundaries. We used 26 years of bird community and vegetation data alongside 32 years of fire history data. We identified spatial regime boundaries with bird community data via a wombling approach. We identified spatial regime boundaries with vegetation data by calculating spatial covariance between remotely-sensed grass and woody plant cover per pixel. For fire history data, we calculated the cumulative number of fires per pixel. Setting bird boundary strength (wombling <i>R<sup>2</sup></i> values) as the response variable, we tested our hypotheses with a hierarchical generalized additive model (HGAM). Both hypotheses were supported: animal boundaries synchronized with vegetation boundaries in space and time, and grassland bird communities stabilized as fire frequency increased (HGAM explained 38% of deviance). We can now track spatial regimes via animal community data pixel-by-pixel and year-by-year. Alongside vegetation boundary tracking, tracking animal community boundaries can inform the scale of management necessary to maintain animal communities endemic to desirable ecological states. Our approach will be especially useful for conserving animal communities requiring large-scale, unfragmented landscapes—like grasslands and steppes.
Roberts CP, Ludwig A, Fogarty DT, Stuber E, Uden DR, Walker TJ, Twidwell D. *Population increases of the threatened American burying beetle (Nicrophorus americanus) linked to large-scale conservation strategies in a private lands ecoregion*. Biological Conservation. 301: https://doi.org/10.1016/j.biocon.2024.110865 \| Abstract	November 2024	Woody plant encroachment and row-crop agricultural land conversion are existential threats to species that rely on grassland ecosystems. The American burying beetle (<i>Nicrophorus americanus</i>) is a threatened species whose largest remnant populations are predominantly located in grassland ecoregions comprised of privately-owned ranching lands. Here, we seek to determine functional scaling patterns and population trends of the American burying beetle in the face of conservation threats and grassland restoration. We used 13 years (2007 – 2019) of American burying beetle abundance data collected from permanent sampling locations across the Loess Canyons ecoregion (Nebraska, USA), where a network of ranchers have been restoring large-scale grasslands. To estimate beetle abundance relative to land cover variables, we developed a Bayesian N-mixture model, incorporating the Bayesian latent indicator scale selection (BLISS) method to probabilistically determine at which scales land cover variables best explained beetle abundance. American burying beetle abundance significantly increased across the ecoregion, despite high interannual variation in abundance. Increases in beetle abundance were associated with large-scale (1,149 ha extent) grassland cover. Decreases in abundance were associated with large-scale crop conversion (590 ha extent) and large-scale increases in woody cover (1,149 ha extent). This study provides the first evidence of ecoregion-scale population increases of the American burying beetle. These increases are tied to landscape variables that are managed in a large-scale, coordinated private lands grassland restoration effort. Our results suggest that successful grassland restoration will depend on coordinating across property boundaries to implement conservation at scales necessary to conserve species that require large-scale, unfragmented grasslands.
Roberts CP, Grant WE, Horton ML, LaBrie LAP, Peterson MR, Rogosch JS, Wang H. 2024. Balancing ecology and practicality to rank waterbodies for preventative invasive species management. Ecological Solutions and Evidence. \| Abstract	August 2024	1. Early detection and rapid response (EDRR) is the most successful framework for preventative invasive species management, but prioritizing localized EDRR actions with limited resources is challenging. An approach that ranks individual locations, such as waterbodies, for EDRR by combining an invasive species’ establishment risk with the practicality of managing it could help set reasonable priorities.<br>2. Here, we worked with regional practitioners in Arkansas, USA and the broader Southeastern USA to co-produce a workflow for preventative aquatic invasive species management that 1) estimates establishment risk under current and future climates with a species distribution model, 2) scores waterbodies according to difficulty of eradicating an aquatic invasive species if it were introduced, and 3) combines establishment risk and eradication difficulty scores to rank waterbodies according to preventative management priority. As our focal species, we used giant salvinia (<i>Salvinia molesta</i>), a floating aquatic fern ranked among the worst weeds in the world due to its negative socioecological impacts and difficulty to eradicate once established.<br>3. Current establishment risk is low for much of our study area, but under future climate scenarios (RCP 8.5), areas with > 60% giant salvinia establishment risk increased from 546 km<sup>2</sup> to 30,219 km<sup>2</sup> between 2023 and 2040 in Arkansas.<br>4. We found giant salvinia establishment risk and eradication difficulty are independent of each other (<i>r</i> = 0.28), and it follows that, alone, early detection tools such as species distribution models are insufficient for managers to prioritize sites for EDRR.<br>5. We envision our approach fitting into a potential EDRR workflow that cascades from broad- to local-scale. To illustrate, 1) horizon scanning and/or climate matching generates lists of high-risk invasive species; 2) species lists are narrowed according to eradication feasibility scores; 3) for all remaining species, all waterbodies across a geography of interest receive prioritization rankings based on establishment risk and eradication difficulty scores. Given that climate change makes predicting invasive species’ distributions a moving target, combining co-produced eradication difficulty scoring with species distribution modeling will balance rigor with practicality when prioritizing locations for EDRR.
Roberts CP, Doser JW, Berry LL, Fowler A, Marshall PM, Middaugh C, Rowe K, Schmit JM, Shaw M, Wilson K. Scenario planning and multi-species occupancy models reveal positive avian responses to restoration of afforested woodlands. Restoration Ecology. 32(1), e13998. \| Abstract	April 2023	Scenario planning is a powerful approach for assessing restoration outcomes under alternative futures. However, developing plausible scenarios remains daunting in complex systems like ecological communities. Here, we used Bayesian multi-species occupancy modeling to develop scenarios to assess woodland restoration outcomes in afforested communities in seven wildlife management areas in Arkansas, USA. Our objectives were (1) define plausible woodland restoration and afforestation scenarios by quantifying historic ranges of variation in mean tree cover and tree cover heterogeneity from 1986 - 2021, and (2) predict changes in bird species richness and occupancy patterns for six species of greatest conservation need under two future scenarios: complete afforestation (100% tree cover) and woodland restoration (based on remotely-sensed historic tree cover). Using 35 years of remotely-sensed tree cover data and six years of bird monitoring data, we developed multi-species occupancy models to predict future bird species richness and occupancy under the complete afforestation and woodland restoration scenarios. Between 1986 and 2021, tree cover increased in all study areas–with one increasing 70%. Under the woodland restoration scenario, avian species richness increased up to 20%, and four of six species of greatest conservation need exhibited gains in occupancy probability. The complete afforestation scenario had negligible effects on richness and occupancy. Overall, we found decreasing tree cover to historic levels prior to widespread afforestation would provide community-level benefits and would do little harm even to forest-dependent species of conservation concern. Applying multi-species occupancy modeling within a scenario planning framework allows for comparing multi-scale tradeoffs between plausible futures.
Reddin, CJ and Krementz DG. 2016. Small Mammal Communities in Eastern Redcedar Forest. American Midland Naturalist 175:113-119. \| Abstract	January 2016	Eastern red cedar (Juniperus virginiana) is a fire-intolerant tree species that has been invading and altering grassland ecosystems throughout the American Great Plains and Midwest. Many land managers are interested in removing eastern red cedar to restore native grasslands. As a metric of habitat health, we surveyed small mammals using mark-recapture methods in eastern red cedar forest and 5 other habitats common to the Ozark region. We conducted over 7,000 trap-nights and captured 271 individuals belonging to 9 species, primarily Peromyscus spp., 475 times. The small mammal species composition in eastern red cedar forest was comparable to local mixed oak forests but lower than warm-season grasslands and oldfields. We encountered no small mammal species endemic to eastern red cedar forest. We found that eastern red cedar forest had no unique species and a less diverse small mammal community than the grasslands it replaced. Restoring former grasslands invaded by eastern red cedar should increase small mammal species diversity at the stand scale.
Rabalais, M. R., and D. D. Magoulick. 2006. Is Competition with the Invasive Crayfish Orconectes neglectus chaenodactylus Responsible for the Displacement of the Native Crayfish Orconectes eupunctus? Biological Invasions 8:1039-1048.	July 2006
Rabalais, M. R., and D. D. Magoulick. 2006. Influence of an Invasive Crayfish Species on Diurnal Habitat Use and Selection by a Native Crayfish Species in an Ozark Stream. American Midland Naturalist 155:295-306.	April 2006
Powell, L. A., M. J. Conroy, J. E. Hines, J. D. Nichols, and D. G. Krementz. 2000. Simultaneous use of mark-recapture and radiotelemetry to estimate survival, movement, and capture rates. Journal of Wildlife Management 64:302-313.	January 2000
Powell, L. A., J. D. Lang, M. J. Conroy, and D. G. Krementz. 2000. Effects of forest management on density, survival, and population growth of wood thrushes. Journal of Wildlife Management 64:11-23.	January 2000
Powell, L. A., J. D. Lang, D. G. Krementz, and M. J. Conroy. 2005. Using radio telemetry to reduce bias in nest searching. Journal of Field Ornithology 76:274-278.	September 2005
Plummer, M. V., D. G. Krementz, L. A. Powell, and N. E. Mills. 2008. Effects of habitat disturbance on survival rates of softshell turtles (Apalone spinifera) in an urban stream. Journal of Herpetology 42:555-563.	June 2008
Pittman, H. T., and D. G. Krementz. 2016. Efficacy of landscape scale oak woodland and savanna restoration in the Ozark Highlands of Arkansas, USA. Journal of the Southeast Association of Fish and Wildlife Agencies 3:233-242 \| Abstract	March 2016	The loss of historic ecosystem conditions has led forest managers to implement woodland and savanna ecosystem restoration on a landscape scale (≥10,000 ha) in the Ozark Plateau of Arkansas. Managers are attempting to restore and conserve these ecosystems through the reintroduction of disturbance, mainly short-rotation early-growing-season prescribed fire. Short-rotation early-growing season prescribed fire in the Ozarks typically occurs from immediately before bud-break, through bud-break and before leaf-out, and fire events occur on a three to five year interval. We examined short-rotation early-growing season prescribed fire as a restoration tool on vegetation characteristics. We collected vegetation measurements at 70 locations annually from 2011 to 2012 in and around the White Rock Ecosystem Restoration Area (WRERA), Ozark-St. Francis National Forest, Arkansas, USA and used generalized linear models to investigate the impact and efficacy of prescribed fire on vegetation structure. We found the number of large shrubs (>5 cm base diameter) decreased and small shrubs (<5 cm ground diameter) increased with prescribed fire severity. We found that horizontal understory cover from ground level to 1 m in height increased with time since prescribed fire and woody ground cover decreased with the number of prescribed fire treatments. Using the LANDFIRE datasets at the landscape scale, we found that since the initiation of a short-rotation early-growing season prescribed fire management regime, canopy cover has not reverted to levels characteristic of woodlands and savannas or reached restoration objectives over large areas. Without greater reductions in canopy cover and increases in canopy cover heterogeneity, advanced regeneration will be limited in success, and woodland and savanna conditions will not return soon or to the extent desired.
Pittman, H. A., and D. G. Krementz. 2016. Effects of short-rotation early-growing season prescribed fire on eastern wild turkey nest ecology in the Ozark Highlands, Arkansas, USA. PLoS ONE 11(1):e0147317. \| Abstract	January 2016	Landscape scale short-rotation early-growing season prescribed fire in upland hardwood forests represents a recent shift in management strategies across eastern upland forests. It is a departure from stand scale management regimes to landscape scale (>10 000 ha) management regimes. This being so, considerable commitments and resources are being made to this management strategy and the effects on wildlife in upland forests, especially those dominated by hardwood canopy species, are relatively unknown. We initiated this study to assess whether this management strategy affects eastern wild turkey reproductive ecology on the White Rock Ecosystem Restoration Area of the Ozark-St. Francis National Forest. We marked 67 wild turkey hens with 110 g Global Positioning System (GPS) Platform Transmitting Terminals in 2012 and 2013 on the WRERA to examine nest-site selection and estimate nest survival. We estimated nest survival and nest-site selection of wild turkey in forest units managed with short-rotation early-growing season prescribed fire (treated) and units absent of prescribed fire (untreated). We then compared these estimates to determine any differences in nest survival and nest-site selection in treated and untreated units. We found that nest survival was slightly higher in treated units than untreated but not significantly greater (S = 0.24 [0.13, 0.39], S = 0.2 [0.09, 0.37] respectively). We also found that wild turkey in treated units selected nest-sites based on different characteristics than in untreated units. In treated units wild turkey selected nest-sites with less visual concealment from 1 to 2 m in height, fewer large trees (>20 cm DBH), more grass ground cover, and more open canopies than random sites while wild turkey in untreated units did not select for these characteristics. In untreated units wild turkey selected nest-sites that were closer to roads than random sites while wild turkey in treated units did not select for this characteristic. In both treated and untreated units wild turkey selected nest-sites with more visual concealment from 0 to 1 m in height and more woody stem ground cover than random sites. In conclusion, wild turkey nest-survival and some nest-site characteristics are likely improved by short-rotation early-growing season prescribed fire, but for significant benefits to be realized managers will need to continue the commitment to the landscape scale management strategy.
Nolen, M.S., D.D. Magoulick, R.J. DiStefano, E.M. Imhoff and B.K. Wagner. 2014. Predicting probability of occurrence and factors affecting distribution and abundance of three Ozark endemic crayfish species at multiple spatial scales. Freshwater Biology 59:2374-2389. DOI:10.1111/fwb.12442	October 2014
Myatt, N. A., and D. G. Krementz. 2007. Fall migration rates, and habitat use of American woodcock in the Central United States. Journal of Wildlife Management 71:1197-1205.	March 2007
Myatt, N. A., and D. G. Krementz. 2007. American woodcock fall migration using Central Region band recovery and wing receipt data. Journal Wildlife Management 71:336-344.	January 2007
Middaugh, C.R., B. Kessinger and D.D. Magoulick. 2018. Climate-induced seasonal changes in smallmouth bass growth rate potential at the southern range extent. Ecology of Freshwater Fish 27:19-29. DOI:10.1111/eff.12320	January 2018
Middaugh, C.R. and D.D. Magoulick. 2019. Changes in Body Condition and Diet of Lotic Smallmouth Bass across Two Flow Regimes during Summer Months at the Southern Extent of Their Native Range. pp. 93-110 in M.J. Siepker and J.W. Quinn, editors. Managing Centrarchid Fisheries in Rivers and Streams. American Fisheries Society, Symposium 87, Bethesda, Maryland.	March 2019
Middaugh, C.R. and D.D. Magoulick. 2018. Forecasting effects of angler harvest and climate change on smallmouth bass abundance at the southern edge of their range. PLoS ONE 13(8) DOI:e0202737.https://doi.org/10.1371/journal. pone.0202737	August 2018
McKnight, D.T., K. Ard, R.J. Auguste, G. Bardahiva, M.F. Benard, P. Boban, M. Dillon, C.T. Downs, B.A. DeGregorio, B.M. Glorioso, R. Goodman, C. hird, E. Hollender, M. Kennedy. R. Kidman, A. Massey, P.McGovern, M. Muhlenhaupt, K. Ostovar, D. Podgorski, C. Price, B.A. Reinke, L. Streeting, J. Venezia, J. Young, and E.J. Nordberg. 2023. Nocturnal Basking in Turtles: A Global Perspective. Global Ecology and Conservation. p.e02444 \| Download	April 2023
Magoulick, D.D., S.W. Hodges, M.P. Dekar, M.K. Scott, M.R. Rabalais and C.M. Bare. 2021. Hydrologic variation influences stream fish assemblage dynamics through flow regime and drought. Scientific Reports 11:10704. doi.org/10.1038/s41598-021-89632 \| Download	May 2021
Magoulick, D.D., R.J. DiStefano, E.M. Imhoff, M.S. Nolen and B.K. Wagner. 2017. Landscape- and local-scale habitat influences on occupancy and detection probability of stream-dwelling crayfish: implications for conservation. Hydrobiologia 799:217-231. DOI:10.1007/s10750-017-3215-2	September 2017
Magoulick, D.D., K.C. Wynne and J. Clark. 2022. Morphological traits related to potential invasiveness of two subspecies of the crayfish Faxonius neglectus. River Research and Applications 38:1-9. DOI:10.1002/rra.4024	July 2022
Magoulick, D.D. and G.L. Piercey. 2016. Trophic overlap between native and invasive stream crayfish. Hydrobiologia 766:237-246. DOI: 10.1007/s10750-015-2457-0	February 2016
Magoulick, D.D. and D.T. Lynch. 2015. Occupancy and abundance modeling of the endangered yellowcheek darter in Arkansas. Copeia 103:433-439. DOI:10.1643/CE-14-116	June 2015
Magoulick, D.D. 2014. Impacts of drought and crayfish invasion on stream ecosystem structure and function. River Research and Applications 30:1309-1317. DOI: 10.1002/rra.2747	December 2014
Magoulick, D. D., and R. M. Kobza. 2003. The role of refugia for fishes during drought: a review and synthesis. Freshwater Biology 48:1186-1198.	June 2003
Magoulick, D. D., and R. J. Distefano. 2007. Invasive crayfish Orconectes neglectus threatens native crayfishes in the Spring River drainage of Arkansas and Missouri. Southeastern Naturalist 6:141-150.	March 2007
Magoulick, D. D., and L. C. Lewis. 2002. Predation on exotic zebra mussels by native fishes: effects on predator and prey. Freshwater Biology 47:1908-1918.	September 2002
Magoulick, D. D. 2004. Effects of predation risk on habitat selection by water column fish, benthic fish and crayfish in stream pools. Hydrobiologia 527:209-221.	September 2004
Magoulick, D. D. 2000. Spatial and temporal variation in fish assemblages of drying stream pools: The role of abiotic and biotic factors. Aquatic Ecology 34:29-41.	July 2000
Lynch, D.T., D.R. Leasure and D.D. Magoulick. 2019. Flow alteration-ecology relationships in Ozark Highland streams: Consequences for fish, crayfish, and macroinvertebrate assemblages. Science of the Total Environment 672:680-697. DOI.org/10.1016/j.scitotenv.2019.03.383	April 2019
Lynch, D.T., D.R. Leasure and D.D. Magoulick. 2018. The influence of drought on flow-ecology relationships in Ozark Highland streams. Freshwater Biology 63:946–968. DOI:10.1111/fwb.13089	July 2018
Lynch, D.T. and D.D. Magoulick. 2016. Effects of pulse and press drying disturbance on benthic stream communities. Freshwater Science 35:998-1009. DOI:10.1086/687843	August 2016
Ludlam, J.P., B.T. Banks and D.D. Magoulick. 2015. Density-dependent effects of omnivorous stream crayfish on benthic trophic dynamics. Freshwater Crayfish 21:165-170.	December 2015
Ludlam, J.P. and D.D. Magoulick. 2010. Environmental conditions and biotic interactions influence ecosystem structure and function in a drying stream. Hydrobiologia 644:127-137.	March 2010
Ludlam, J.P. and D.D. Magoulick. 2010. Effects of consumer identity and disturbance on stream mesocosm structure and function. Fundamental and Applied Limnology 177:143-149.	June 2010
Ludlam, J.P. and D.D. Magoulick. 2009. Effects of fish and crayfish on benthic communities during stream drying: Importance of spatial and temporal variation. Journal of the North American Benthological Society 28:371-382.	March 2009
Longing, S.D. and D.D. Magoulick. 2023. Flight capacity and response to habitat drying of endemic diving beetles (Coleoptera: Dytiscidae) in Arkansas (USA). Hydrobiology 2:354-362. doi.org/10.3390/hydrobiology2020023 Special Issue: Ecology of Aquatic Invertebrates in Springs and Headwater Streams: Imperiled Habitats in a Changing World	May 2023
Loncarich, F. L., and D. G. Krementz. 2004. External determination of age and sex of common moorhen. Wildlife Society Bulletin 32:655-660.	September 2004
Lehnen, S. E., and D. G. Krementz. 2007. The influence of body condition on the stopover ecology of Least Sandpipers in the Lower Mississippi Alluvial Valley during fall migration. Avian Conservation and Ecology 2(2):9.	December 2007
Lehnen, S. E., and D. G. Krementz. 2005. Turnover rates of fall migrating pectoral sandpipers through the lower Mississippi Alluvial Valley. Journal of Wildlife Management 69:671-680.	June 2005
Lehnen, S. E. and D. G. Krementz. 2013. Use of aquaculture ponds and other habitats by migrating shorebirds along the lower Mississippi River. Environmental Management 52:417-426. \| Abstract	August 2013	Populations of many shorebird species are declining and shorebirds may be especially vulnerable during migration. Shorebirds use a variety of habitats along interior migratory routes including managed moist soil units, natural wetlands and sand bars, and agricultural lands such as harvested rice fields. Less well known is shorebird usage of aquacultural facilities in the Lower Mississippi River Alluvial Valley (LMAV). We compared shorebird habitat use at drained aquacultural ponds, moist soil units, agricultural areas, and sand bars and other natural habitat, and a sewage treatment facility in the LMAV during fall 2009. Although 31,165 individuals of 28 shorebird species were observed, six species: Least Sandpiper (Calidris minutilla), Killdeer (Charadrius vociferous), Semipalamated Sandpiper (C. pusilla), Pectoral Sandpiper (C. melanotos), Black-necked Stilt (Himantopus himantopus), and Lesser Yellowlegs (Tringa flavipes), accounted for 92% of the observations. Waste management sludge (95.4 ± 23.7 birds/ha), drained aquacultural ponds (61.3 ± 9.1 birds/ha), and managed moist soil units on public lands (29.9 ± 7.1 birds/ha) had the highest densities of shorebirds. Together, drained aquaculture ponds and moist soil units supported the most non-Killdeer shorebirds in the LMAV, with an estimated 90% of non-Killdeer shorebirds in the LMAV using these areas during the 2009 fall migration period. There were an estimated 1,100 ha of aquaculture habitat available during fall 2009, which provided over half the estimated habitat requirement of 2,000 ha in the region. However, because of the decline in the aquaculture industry, fall habitat in the LMAV may be limited in the near future for shorebirds. This study illustrates the potential for freshwater aquaculture to create habitat for a declining taxa. Aquaculture is a rapidly growing industry worldwide; wildlife may be better managed by the identification of benefits as well as risks of aquacultural development and practices.
Leasure, D.R., D.D. Magoulick and S. D. Longing. 2016. Natural flow regimes of the Ozark-Ouachita Interior Highlands region. River Research and Applications 32:18-35. DOI:10.1002/rra.2838	January 2016
Lassiter, E.V., J.H. Sperry, and B.A. DeGregorio. 2023. Movement ecology of adult and juvenile spotted turtles (Clemmys guttata) in a seasonally dynamic environment. Wildlife Research \| Abstract	April 2023	<i>Context.</i> Understanding the temporal and spatial scale at which wildlife move is vital for conservation and management. This is especially important for semi-aquatic species which make frequent inter-wetland movements to fulfill life-history requirements.<br><i>Aims. </i>We investigate the drivers of movement and space-use of the imperiled spotted turtle (<i>Clemmys guttata</i>), an ephemeral wetland specialist, in three large, isolated wetland complexes in Virginia, U.S.A.<br><i>Methods. </i>We use VHF radio-transmitters to radio-locate adult and juvenile turtles and estimate movement and space-use during their active and aestivation seasons (March - August). We then use generalized linear mixed models to examine how movement and space-use varied based on intrinsic turtle characteristics and extrinsic wetland and climatic features.<br><i>Key results. </i>We showed that on average individual spotted turtles used 5 wetlands per year (range 3 – 13) and that their inter-wetland movement and daily movement distance varied seasonally in accordance with wetland availability and breeding phenology. Spotted turtle movement and space-use was influenced by the arrangement and size of the wetland complexes, with turtles moving farther and occupying larger home-ranges as size and distance between wetlands increased. Inter-wetland movement was not influenced by intrinsic turtle effects but larger adult turtles moved further, used more wetlands, and had larger home-ranges than smaller turtles.<i> </i><br><i>Conclusions. </i>Turtle response to variation in season and wetland configuration highlight the need for complex and dynamic landscapes that are required to sustain this species.<br><i>Implications. </i>This study has important conservation implications showing that spotted turtles rely on a large number of diverse wetlands as well as upland habitat to fulfill their resource needs and that these habitat associations vary seasonally. And more broadly, results from our study can aid in the understanding of the spatial and temporal variation in patch characteristics (e.g. quality and extent) and inter-patch movement by organisms, which is critical for the conservation and management of semi-aquatic species and other species that occupy patchy habitat systems.<i> </i>
Larson, E.R., D.D. Magoulick, C. Turner and K.H. Laycock. 2009. Disturbance and species displacement: different tolerances to stream drying and dessication between a native and invasive crayfish. Freshwater Biology 54:1899-1908.	August 2009
Larson, E.R. and D.D. Magoulick. 2011. Life history notes on Cambarus hubbsi (Hubbs Crayfish) from the South Fork Spring River, Arkansas. Southeastern Naturalist 10:121-132.	March 2011
Larson, E.R. and D.D. Magoulick. 2009. Does juvenile competition explain displacement of a native crayfish by an introduced crayfish? Biological Invasions 11:725-735.	April 2009
Larson, E.R. and D.D. Magoulick. 2008. Comparative life history of native (Orconectes eupunctus) and introduced (Orconectes neglectus) crayfishes in the Spring River drainage of Arkansas and Missouri. American Midland Naturalist 160:323-341.	October 2008
Larson, E. R., R. J. Distefano, D. D. Magoulick, and J. Westhoff. 2008. Efficiency of quadrat sampling for riffle-dwelling crayfish. North American Journal of Fisheries Management 28:1036-1043.	August 2008
Lang, J. D., L. A. Powell, D. G. Krementz, and M. J. Conroy. 2002. Wood thrush movements, habitat use, and effects of forest management for red-cockaded woodpeckers. Auk 119:109-124	January 2002
Krementz, DG, KL Willard, JM Carroll, and KM Dugger. 2016. King Rail (Rallus elegans) Nesting and Brood-Rearing Ecology in a Managed Wetland in Oklahoma, USA. Waterbirds 39:241-249.	October 2016
Krementz, D.G., R. Crossett, and S.E. Lehnen. 2014. Nocturnal Field Use by Fall Migrating American Woodcock in the Delta of Arkansas. Journal of Wildlife Management 78:264-272. \| Abstract	February 2014	The American woodcock (Scolopax minor) population has declined since the late 1960s across its range and is now considered a species of special concern. Research on woodcock habitat use during migration and migratory routes through the Central Flyway has been limited. We assessed woodcock phenology, estimated density, and nocturnal habitat use in fields on public lands in the lower Mississippi Alluvial Valley portion of Arkansas during November and December of 2010 and 2011. Using ATVs, we surveyed transects in 91 fields of 8 field types, recording the perpendicular distance from the transect centerline for each woodcock observed. Woodcock were detected from the first week in November through the third week in December but in low numbers. No woodcock were detected in millet or rice fields whereas woodcock were most frequently detected and had the highest estimated densities in unharvested soybeans. All other crop type/post-harvest management combinations had lower woodcock densities. No woodcock were detected in fields < 8 ha or > 40 ha. Woodcock in the lower Mississippi Alluvial Valley may benefit from management for unharvested soybean fields of moderate size (~8-40 ha).
Krementz, D. G., and L. A. Powell. 2000. Breeding season demography and movements of Eastern towhees at the Savannah River Site, South Carolina. Wilson Bulletin 112:243-248.	January 2000
Krementz, D. G., and J. S. Christie. 2000. Clearcut stand size and scrub-successional bird assemblages. Auk 117:913-924.	January 2001
Krementz, D. G., and J. G. Bruggink. 2000. Sources of variation in survival and recovery rates of American woodcock. Pages 55-64 in (D. G. McAuley, J. G. Bruggink, and G. F. Sepik, eds. ). Proceedings of the Ninth Woodcock Symposium. U. S. G. S., Biological Resources Division Information and Technology Report USGS/BRD/ITR-2000-0009, Patuxent Wildlife Research Center, Laurel, Maryland. 117 pp.	January 2001
Krementz, D. G., and J. D. Luscier. 2010. Woodpecker densities in the Big Woods of Arkansas. Journal of Fish and Wildlife Management 1:102-110. \| Abstract \| Publisher Website	November 2010	Sightings of the ivory-billed woodpecker (Campephilus principalis) in the Big Woods of 11 Arkansas initiated a series of studies on how to best manage habitat for this endangered 12 species as well as all woodpeckers in the area. Previous work suggested that densities of 13 other woodpeckers, particularly pileated (Dryocopus pileatus) and red-bellied 14 woodpeckers (Melanerpes carolinus), might be useful in characterizing habitat use by the 15 ivory-billed woodpecker. We estimated densities of all woodpeckers in the Big Woods 16 during the breeding seasons of 2006 and 2007 and also during the winter season of 2007. 17 Our estimated densities were as high as or higher than previously published woodpecker 18 density estimates for the southeastern United States. Density estimates ranged from 9.1 19 to 161.3 inds/km2 across 6 woodpecker species. Our data suggest that the Big Woods of 20 Arkansas is attractive to all woodpeckers using the region.
Krementz, D. G., and E. E. Gbur, Jr. 2011. American woodcock wingbee reliability. Proceedings of the American Woodcock Symposium 10:195-201. \| Abstract	May 2011	Recruitment indices are estimated annually for the American woodcock (Scolopax minor) using data collected through the Wing-collection Survey. Wings from woodcock harvested by hunters are identified to age and sex by participants at the annual woodcock “wingbee”. Steps are taken to insure that wingbee participants are competent at aging and sexing woodcock wings, but the efficiency of these steps have not been evaluated. We collected data on participants over 6 years to address their reliability in aging and sexing wings. Only about 65% of participants successfully passed a mandatory test in identification skills before scoring wings, and also, only about 60% of participants passed the same test on finishing scoring at the end of the wingbee. The most common mistakes included designating a wing from an immature bird as an adult or misidentifying a female as a male. We make a number of suggestions how to improve the wingbee operation.
Krementz, D. G., S. E. Lehnen, and J. D. Luscier. 2012. Habitat use of woodpeckers in the Big Woods of Arkansas. Journal of Fish & Wildlife Management 3:89-97. \| Abstract	April 2012	The Big Woods of eastern Arkansas contain some of the highest densities of woodpeckers recorded within bottomland hardwood forests of the southeastern United States. A better understanding of habitat use patterns by these woodpeckers is a priority for conservationists seeking to maintain these high densities in the Big Woods and the Lower Mississippi Alluvial Valley as a whole. Hence, we used linear mixed-effects and linear models to estimate the importance of habitat characteristics to woodpecker density in the Big Woods during the breeding seasons of 2006 and 2007 and the winter of 2007. Northern flicker density was negatively related to tree density both for moderate (>25 cm dbh) and larger trees (>61 cm dbh). Red-headed woodpeckers also had a negative relationship with density of large (>61 cm dbh) trees. Bark disfiguration (an index of tree health) was negatively related to red-bellied woodpecker and yellow-bellied sapsucker densities. No measured habitat variables explained pileated woodpecker density. Overall, the high densities of woodpeckers observed in our study suggest that the current forest management of the Big Woods of Arkansas is meeting the nesting, roosting, and foraging requirements for these birds.
Krementz, D. G., K. Willard, J. M. Carroll, and K. M. Dugger. 2016. King rail nesting and brood-rearing ecology in a managed wetland in Oklahoma, USA. Waterbirds 39(3):241-249. \| Abstract	September 2016	The King Rail (Rallus elegans) is a secretive marsh bird of conservation concern and reproductive success is thought to be a limiting factor for the inland migratory population. Reproductive effort of King Rails was studied in southeastern Oklahoma from 2010 – 2012 using surveys, radio-telemetry, nest searching and brood observations. During 2011 -2012, we documented 29 King Rail territories. Ten nests were located between the first week in April and the first week in July with a mean clutch size of 10.3 (0.80 SE). Water depth at nests was shallow (<15 cm) and nest sites were in locations with more visual obstruction, more microtopographic variation, and more woody stems while open water cover was less than at random sites. Nine broods were followed that used rearing sites with deeper water, had a greater percent of tall emergent vegetation and more woody vegetation than random sites. Brood size dropped from an average of nine to two chicks by the second week. Daily chick survival rate across the breeding season was 0.969 (SE = 0.016) which resulted in a probability of a chick fledging of 21%. Reproductive effort by King Rails at our study site was low and of concern.
Krementz, D. G., K. Asante, and L. W. Naylor. 2011. Spring Migration of Mallards from Arkansas as Determined by Satellite Telemetry. Journal of Fish and Wildlife Management 2(2). \| Abstract	October 2011	We used satellite telemetry to document spring migration phenology, routes, stopover regions, and nesting sites of mallards (Anas playtyrynchos) marked in Arkansas during the winters of 2004-2007. Of the 143 marked mallards that migrated from Arkansas, they did so, on average, by mid-March. Mallards flew over the Missouri Ozarks and 42% made an initial stopover in Missouri where they used areas that had larger rivers (Mississippi River, Missouri River) embedded in an agricultural landscape. From this stopover region they either migrated directly to the Prairie Pothole Region (PPR) or they migrated north to Minnesota where they either moved next to the PPR or to the north and east of the PPR. For those mallards (83%) that stopped for >1day before entering the PPR, the average length at each stop was 12 days (SE = 0.90 days, range = 2 - 54 days). Mallards made more stopovers, made shorter migration movements, and took longer to move to the PPR in wetter than drier years. Mallards arrived in the PPR earlier in 2006 (¯(×) = 30 March, SE = 2.18 days) than in 2005 (× ̅ = 7 April, SE = 2.30 days). Females nested across nine Bird Conservation Regions. Nesting occurred most frequently in South Dakota (n = 9). The average date when females nested was 19 April (SE = 2.44 days, range = 12 Mar – 26 May). Because many mallards headed for the large river corridors in Missouri for their first stopover, this region is an important spring migration stopover of continental importance to mallards and should be a focal area of conservation.
Krementz, D. G., J. E. Hines, and D. R. Luukkonen. 2003. Survival and recovery rates of American woodcocK banded in Michigan. Journal of Wildlife Management 67:398-407.	January 2003
Krementz, D. G. 2000. Piney woods habitat management. Ninth Woodcock Symposium. Pages 50-54 in (D. G. McAuley, J. G. Bruggink, and G. F. Sepik, eds. ). Proceedings of the Ninth Woodcock Symposium. U. S. G. S., Biological Resources Division Information and Technology Report USGS/BRD/ITR-2000-0009, Patuxent Wildlife Research Center, Laurel, Maryland. 117 pp.	January 2001
Krementz DG, Asante K Naylor LW. 2012. Autumn Migration of Midcontinent Mallards Determined by Satellite Telemetry. Journal of Fish and Wildlife Management 3:238-251. \| Abstract	September 2012	We used satellite telemetry to study autumn migration timing, routes, stopover duration and final destinations of midcontinent Mallards (Anas platyrynchos) from 2004 to 2007. Of those Mallards that were alive on 15 Sep (n = 55), the average date when autumn migration began was 23 Oct (SE = 2.62 days; range 17 Sep - 7 Dec). For those Mallards that stopped for >1 day on migration, the average length was 15.5 days (SE = 1.45). Ten Mallards migrated non-stop to wintering sites. The eastern Dakotas were an important stopover area. The total distance migrated per Mallard averaged 1,407 km (SE = 89.55 km; range 142 – 2947 km). The average time spent on migration per individual between 15 Sep and 15 Dec was 27 days (SE = 2.88 days; range 2 – 84 days). The state where most Mallards were located on 15 Dec was Missouri (eleven) followed by Arkansas (eight), while five Mallards were still in Canada. By 15 Dec, only eight of 43 females and zero of ten males were present in Arkansas. Since the eastern Dakotas were an important autumn migration stopover for midcontinent Mallards, this region might be considered for increased conservation attention. The reasons for so few Mallards, especially male Mallards, returning to Arkansas the following year deserves further research.
James, R. A., and D. G. Krementz. 2005. Dispersal patterns of giant Canada geese in the central United States. Proc. Annu. Conf. Southeast. Assoc. Fish and Wildli. Agencies 59:144-154.	August 2006
Jackson RT, Marshall PM, Burkhart C, Schneck J, Kelly G, Roberts CP. Risk of invasive waterfowl interaction with poultry production: understanding potential for avian pathogen transmission via species distribution models. Ecology and Evolution. \| Abstract	July 2024	Recent outbreaks of highly pathogenic avian influenza (HPAI) have devastated poultry production across the United States, with more than 77 million birds culled in 2022-2023 alone. Wild waterfowl, including various invasive species, host numerous pathogens, including HPAI, and have been implicated as catalysts of disease outbreaks amongst native fauna and domestic birds. In a state like Arkansas, USA, where poultry production is a major economic activity (>$4 billion USD in 2022), understanding the risk of invasive waterfowl interactions with domestic poultry is critical. Here, we assessed risk of invasive waterfowl-poultry interaction in Arkansas by comparing density of poultry production sites (chicken houses) to areas of high habitat suitability for two invasive waterfowl species, (Egyptian goose [<i>Alopochen aegyptiaca</i>] and mute swan [<i>Cygnus olor</i>]), known to host significant pathogens, including HPAI. The percentage of urban land cover was the most important habitat characteristic for both invasive waterfowl species. At the 95% confidence interval, chicken house densities in areas highly suitable for both species (Egyptian goose = 0.91 ± 0.11 chicken houses/km<sup>2</sup>; mute swan = 0.61 ± 0.03 chicken houses/km<sup>2</sup>) were 3-5 times higher than chicken house densities across the state (0.17 ± 0.01 chicken houses/km<sup>2</sup>). We show that northwestern and western Arkansas, both areas of high importance for poultry production, are also at high risk of invasive waterfowl presence. Our results suggest that targeted monitoring efforts for waterfowl-poultry contact in these areas could help mitigate the risk of avian pathogen exposure in Arkansas and similar regions with high poultry production.
Hodges, S.W. and D.D. Magoulick. 2011. Refuge habitats for fishes during seasonal drying in an intermittent stream: movement, survival and abundance of three minnow species. Aquatic Sciences 73:513-522.	October 2011
Green, A. W., and D. G. Krementz. 2008. Mallard harvest distributions in the Mississippi and Central Flyways. Journal of Wildlife Management. 72:1328-1334.	July 2008
Fox, J.T. and D.D. Magoulick. 2024. Fish beta diversity associated with hydrologic and anthropogenic disturbance gradients in contrasting stream flow regimes. Science of the Total Environment 945:1-13. doi.org/10.1016/j.scitotenv.2024.173825	June 2024
Fox, J.T. and D.D. Magoulick. 2022. Hydrologic and environmental thresholds in stream fish assemblage structure across flow regimes. Ecological Indicators doi.org/10.1016/j.ecolind.2022.109500	September 2022
Fox, J.T. and D.D. Magoulick. 2019. Predicting hydrologic disturbance of streams using species occurrence data. Science of the Total Environment 686:254-263. DOI.org/10.1016/j.scitotenv.2019.05.156	May 2019
Fournier, R.J., N.R. Bond and D.D. Magoulick. 2021. Modeling effects of disturbance across life history strategies of stream fishes. Oecologia 196:413-425. doi.org/10.1007/s00442-021-04941-8	May 2021
Fournier, R.J. and D.D. Magoulick. 2022. Drought and nutrient pollution produce multiple interactive effects in stream ecosystems. PLoS ONE 17(7):e026922. doi.org/10.1371/journal.pone.0269222	July 2022
Flinders, J.A. and D.D. Magoulick. 2017. Spatial and temporal consumption dynamics of trout in Arkansas tailwaters catch-and-release areas. Transactions of the American Fisheries Society 146:432-449. DOI:10.1080/00028487.2017.1281169	March 2017
Flinders, C. A., and D. D. Magoulick. 2007. Habitat use and selection within Ozark lotic crayfish assemblages: spatial and temporal variation. Journal of Crustacean Biology 27:242-254.	March 2007
Flinders, C. A., and D. D. Magoulick. 2007. Effects of depth and crayfish size on predation risk and foraging profitability of a lotic crayfish. Journal of the North American Benthological Society 26:767-778.	December 2007
Flinders, C. A., and D. D. Magoulick. 2005. Distribution, habitat use, and life history of crayfish in the Spring River drainage of Arkansas and Missouri with a focus on the imperiled Mammoth Spring crayfish (Orconectes marchandi). American Midland Naturalist 154:358-374.	October 2005
Flinders, C. A., and D. D. Magoulick. 2003. Effects of stream permanence on crayfish community structure. American Midland Naturalist 149:134-147.	January 2003
E.P. Johansson and B.A. DeGregorio. 2023. Effects of Landscape Cover and Yard Features on Free-roaming Cat (Felis catus) Distribution, Abundance, and Activity Patterns in a Suburban Area. Journal of Urban Ecology. https://doi.org/10.1093/jue/juad003 \| Abstract \| Download	May 2023	Feral and outdoor domestic cats (<i>Felis catus</i>) are invasive predators throughout the world. In some areas, cats occur in higher densities than native mammalian predators and can have severe impacts upon prey populations. We set 51 wildlife game cameras in residential yards in Arkansas USA to understand which landscape and yard features influenced the cat abundance occurring in yards. Additionally, we quantified the daily activity patterns of cats and explored how habitat features and human or predator activity influenced the timing of cat activity. We found that cats were present in 65% of yards with an average of 3 recognizable individuals per yard. Abundance of cats was higher than all native mesopredators except for raccoon (<i>Procyon lotor</i>) and Virginia opossum (<i>Didelphis virginiana</i>). Cat abundance increased as housing unit density and agricultural land use surrounding homes increased. We found no relationship between cat abundance and yard features. Cats were active at all times of the day but tended to be more diurnal in areas closer to city centers or in agricultural settings. Conversely, cats were more nocturnal later in the summer and in areas that had high levels of human or predator activity. Our results suggest that cats are widespread in this region and their relative abundance is driven more by landscape features than it is by yard features. Cats may alter their activity to better coexist with humans and predators. Alteration of yard features is likely not an effective deterrent for cats and more direct control measures may be necessary.
Dunning, J. B., Jr., B. J. Danielson, B. D. Watts, J. Liu, and D. G. Krementz. 2000. Studying wildlife at local and landscape scales: Bachman's sparrows at the Savannah River Site, South Carolina. Studies in Avian Biology 21:75-80.	November 2000
Donovan, V. M., Roberts, C. P., Wonkka, C. L., Beck, J. L., Popp, J. N., Allen, C. R., & Twidwell, D. (2020). Range-wide monitoring of population trends for Rocky Mountain bighorn sheep. Biological Conservation, 248, 108639. \| Abstract \| Download	August 2020	Species conservation requires monitoring and management that extends beyond the local population, yet studies evaluating population trends and management outcomes across the spatial range of a species remain rare. We conducted the first range-wide assessment of population trends for the iconic Rocky Mountain bighorn sheep (<i>Ovis canadensis canadensis</i>) of North America to investigate links between population trends and translocation history. Millions of US dollars have been spent translocating bighorn sheep to achieve conservation objectives, yet a range-wide assessment is lacking. We collected bighorn sheep population estimates for 217 populations across ten US states and two Canadian provinces. We categorized each population by translocation status: native (populations received no translocations), augmented (native populations supplemented with translocation), or reintroduced (populations beginning from translocation). Fifty-eight percent of populations increased in recent years. While most reintroduced and native populations increased in the last 5 years of records, almost double the number of augmented populations declined compared to increased. Reintroduced and augmented populations from the north-central portion of bighorn sheep range declined the most in the last 5 years of records, while southern populations tended to be more stable. Although Rocky Mountain bighorn sheep appear to be a conservation and restoration success, the threat of local population loss remains high in certain regions. We show how amalgamating multi-jurisdictional population data can assist in determining wildlife status and assessing broad-scale management outcomes.
Donovan VM, Beck J, Wonkka CL, Roberts CP, Allen CR, Twidwell D. Declining pronghorn (Antilocapra americana) population productivity caused by woody encroachment and oil and gas development. Global Ecology and Conservation. e02848 . \| Abstract	February 2024	Conservation is increasingly focused on preventing losses in species’ populations before they occur. Tracking changes in demographic parameters that can impact a population’s resilience in response to drivers of global change can support early conservation efforts. We assessed trends in population productivity (late summer juveniles per 100 females) relative to drivers of global change in 40 pronghorn (<i>Antilocapra americana</i>) herds across sagebrush (<i>Artemisia</i> spp.) steppe in Wyoming. Pronghorn are an iconic rangeland species that have been exposed to increasing levels of anthropogenic, climatic, and land-use change. Using data collected across the state of Wyoming, we (1) assessed long-term trends in population productivity, (2) identified patterns in large-scale drivers of global change (i.e., climate, land cover change) across pronghorn habitat, and (3) determined the relationship between drivers of global change and population productivity over a 35-year (1984-2019) period. While Wyoming hosts some of the most abundant populations of pronghorn in North America that have been largely stable in recent years, we found many herds are experiencing long-term declines in productivity. Long-term declines in productivity were associated with increases in oil and gas development and woody encroachment. Although increasing across almost all herd units, woody vegetation cover remains at low levels, suggesting that pre-emptive management may help to prevent losses in pronghorn populations.
DiStefano, R.J., D.D. Magoulick, E.M. Imhoff, and E.R. Larson. 2009. Imperiled crayfishes use hyporheic zone during seasonal drying of an intermittent stream. Journal of the North American Benthological Society 28:142-152.	May 2009
DiStefano, R.J., C.A. Flinders, E.M. Imhoff and D.D. Magoulick. 2017. Conservation of imperiled crayfish – Faxonius (Crockerinus) marchandi Hobbs, 1948 (Decapoda: Cambaridae). Journal of Crustacean Biology 38:1-6. DOI:10.1093/jcbiol/rux075	September 2017
Deshwal, A., R. Kannan, S. L. Stephenson, J. D Willson, B. DeGregorio, and P. Panwar. 2022 Importance of Microhabitat Guilds for Conservation of Scrubland Birds in the Eastern Ghats of India. Ecology and Evolution: 1-12: https://doi.org/10.1002/ece3.9192 \| Download	July 2022
Dekar, M.P., D.D. Magoulick and J. Beringer. 2010. Bioenergetics assessment of fish and crayfish consumption by otter (Lontra canadensis): integrating prey availability, diet, and field metabolic rate. Canadian Journal of Fisheries and Aquatic Sciences 67:1439-1448.	September 2010
Dekar, M.P., D.D. Magoulick and G.R. Huxel. 2009. Shifts in the trophic base of intermittent stream food webs. Hydrobiologia 635:263-277.	October 2009
Dekar, M.P. and D.D. Magoulick. 2013. Effects of predators on fish and crayfish survival in intermittent streams. Southeastern Naturalist 12:197–208	March 2013
Dekar, M. P., and D. D. Magoulick. 2007. Factors affecting fish assemblage structure during seasonal stream drying. Ecology of Freshwater Fish 16:335-342.	July 2007
DeGregorio, Wolff, and Rice. 2021. Evaluating hydrophones for detecting underwater-calling frogs: implications for monitoring imperiled species. Herpetological Conservation and Biology 16(3):513–524. \| Download	December 2021
DeGregorio, B.A., Veon, J.T. and Massey, A.. 2022. Wildlife associates of nine‐banded armadillo (Dasypus novemcinctus) burrows in Arkansas. Ecology and Evolution, 12(5), 8858. \| Download	June 2022
DeGregorio, B.A., Myers, H., and R. Moody. 2020. SOFT RELEASE TRANSLOCATION OF TEXAS HORNED LIZARDS (PHRYNOSOMA CORNUTUM) ON AN URBAN MILITARY INSTALLATION IN OKLAHOMA, USA. Animals. 10.3390/ani10081358 \| Download	August 2020
DeGregorio, B.A., J.D. Willson, and A. Massey. Assessing the density, demography, and resilience to commercial harvest of aquatic turtles in the Mississippi Delta region of Arkansas. Arkansas Game and Fish Commission Final Report \| Abstract	March 2022	N/A
DeGregorio, B.A., C. Gale, E. Lassiter, A. Massey, C. Roberts, and J. Veon. 2021. Nine-banded Armadillo (Dasyrus novemcinctus) Activity Patterns are Influenced by Human Activity. Ecology and Evolution: 0-8. \| Abstract \| Download	November 2021	As the human footprint upon the planet expands, wildlife seeking to avoid human contact are losing the option of altering their spatial distribution and instead are shifting their daily activity patterns to be active at different times than humans. In this study, we used game cameras to evaluate how human development and activity was related to the daily activity patterns of the nine-banded armadillo (<i>Dasyrus novemcinctus)</i> along an urban to rural gradient in Arkansas, USA during the winter of 2020-2021. We found that armadillos had substantial behavioral plasticity in regard to the timing of their activity patterns; >95% of armadillo activity was nocturnal at six of the study sites whereas between 30 and 60% of activity occurred during the day at 3 other sites. Distance to downtown Fayetteville (the nearest population center) and estimated ambient sound level (both indices of human activity) best explained the likelihood of diurnal armadillo activity with armadillos being most active during the day at quiet sites far from Fayetteville. Anecdotal evidence suggests that this activity shift may be in response to not only human activity but the presence of domestic dogs. Our results provide further evidence that human activity has subtle nonlethal impacts on even common, widespread wildlife species. Because armadillos have low body temperatures and basal metabolism, being active during cold winter nights likely has measurable fitness costs. Nature reserves near human population centers may not serve as safe harbors for wildlife as we intend, and managers should benefit from considering these nonlethal responses in how they manage recreation and visitation in these natural areas.
Darrah, A. J., and D. G. Krementz. 2011. Habitat Use of Nesting and Brood-rearing King Rails in the Illinois and Upper Mississippi River Valleys. Waterbirds 34: 160-167. \| Abstract	July 2011	Most studies of the King Rail (Rallus elegans) have investigated habitat use during the nesting season, while few comparisons have been made between the nesting and brood-rearing seasons. King Rails were located during the nesting season in Missouri using repeated surveys with call playback, and systematic searches for broods were conducted during the brood-rearing season. King Rail adults were located at 12 survey points in 2006 and 14 points in 2007, and five King Rail broods were located each year. Water depth was measured and dominant cover type was determined for randomly sampled 5-m plots within used and unused habitats. Logistic regression models were fit to the data and top models were selected from the candidate set using AICc. Nesting adults occurred more often in areas dominated by short (≤1 m) emergent vegetation (β ̂ = 0.77±0.27) and deeper water ((β ) ̂= 0.05±0.02). Broods occurred more often in areas dominated by short emergent vegetation (β ̂ = 1.19±0.37) and shallow water (β ̂ = – 0.17±0.06), and less often in areas dominated by tall (>1 m) emergent vegetation (β ̂ = – 1.15±0.45). A modified catch-curve analysis was used to estimate chick daily survival rates during selected 7-day periods for each year. Daily survival rate ranged from 0.92±0.008 in late June 2007 to 0.96±0.005 in late July 2006. Management plans for King Rails should include the different habitat types needed during the nesting and brood-rearing stages. Additional studies on the sources of brood mortality are needed to provide further wetland management improvements.
Darrah, A. J., and D. G. Krementz. 2010. Occupancy and habitat use of the least bittern and pied-billed grebe in the Illinois and Upper Mississippi River Valleys. Waterbirds 33. 367-375. \| Abstract	September 2010	The Least Bittern (Ixobrychus exilis) and the Pied-billed Grebe (Podilymbus podiceps) are 2 secretive marsh bird species that breed in the Illinois and Upper Mississippi River Valleys. Marsh bird surveys were conducted on public and private wetlands in this region during the breeding seasons of 2006 and 2007. Detection probability (p) and site occupancy probability ( psi) was estimated for each species separately for each year. Candidate models including sampling and habitat covariates were compared using AICc to determine what variables had the greatest influence on p and psi. Average p for Least Bitterns was 0.29 in 2006 and 0.18 in 2007, and varied throughout the 2007 survey season. Average p for Pied-billed Grebes was 0.44 in 2006 and 0.22 in 2007, and an observer effect was found in 2007. Overall psi for Least Bitterns was 0.17 in 2006 and 0.14 in 2007. Least Bittern occupancy was positively related to tall emergent vegetation cover in both years and to water-vegetation interspersion in 2007, and was negatively related to woody vegetation cover in 2007. Overall for Pied-billed Grebes was 0.21 in 2006 and 0.31 in 2007. Pied-billed Grebe occupancy was negatively related to woody vegetation cover in both years, and was positively related to area of open water in 2006. Land managers targeting these species should provide wetlands free from woody vegetation with extensive areas of open water for Pied-billed Grebes, and tall emergent vegetation interspersed with small pools of water for Least Bitterns.
Darrah, A. J., and D. G. Krementz. 2009. Distribution and habitat use of king rails in the Illinois and Upper Mississippi River Valleys. Journal of Wildlife Management. 73:1380-1386 \| Abstract	October 2009	The migratory population of the king rail (Rallus elegans) has declined dramatically during the past 40 years, emphasizing the need to identify habitat requirements of this species to help guide conservation efforts. To assess distribution and habitat use of king rails along the Illinois and Upper Mississippi valleys, USA, we conducted repeated call-broadcast surveys at 83 locations in 2006 and 114 locations in 2007 distributed among 21 study sites. We detected king rails at 12 survey locations in 2006 and 14 locations in 2007, illustrating the limited distribution of king rails in this region. We found king rails concentrated at Clarence Cannon National Wildlife Refuge, an adjacent private Wetlands Reserve program site, and B. K. Leach Conservation Area, which were located in the Mississippi River floodplain in northeast Missouri. Using program PRESENCE, we estimated detection probabilities and built models to identify habitat covariates that were important in king rail site occupancy. Habitat covariates included percentage of cover by tall (.1 m) and short ( M1 m) emergent vegetation, percentage of cover of woody vegetation, and interspersion of water and vegetation (2007 only) within 50 m of the survey location. Detection probability was 0.43 (SE 5 0.12) in 2006 and 0.35 (SE 5 0.03) in 2007 and was influenced by observer identity and percentage of cover by tall herbaceous vegetation. Site occupancy was 0.11 (SE 5 0.04) in 2006 and 0.14 (SE 5 0.04) in 2007 and was negatively influenced most by percentage of cover by woody vegetation. In addition, we found that interspersion of vegetation and water was positively related to occupancy in 2007. Thus, nesting king rails used wetlands that were characterized by high water–vegetation interspersion and little or no cover by woody vegetation. Our results suggest that biologists can improve king rail habitat by implementing management techniques that reduce woody cover and increase vegetation–water interspersion in wetlands.
Cove, M. V., R. Kays, H. Bontrager, C. Bresnan, M. Lasky, T. Frerichs, R. Klann, T. E. Lee Jr., S. C. Crockett, A. P. Crupi, K. C. B. Weiss, H. Rowe, T. Sprague, J. Schipper, C. Tellez, C. A. Lepczyk, J. E. Fantle‐Lepczyk, S. LaPoint, J. Williamson, M. C. Fisher‐Reid, S. M. King, A. J. Bebko, P. Chrysafis, A. J. Jensen, D. S. Jachowski, J. Sands, K. A. MacCombie, D. J. Herrera, M. van der Merwe, T. W. Knowles, R. V. Horan III, M. S. Rentz, L. S. E. Brandt, C. Nagy, B. T. Barton, W. C. Thompson, S. P. Maher, A. K. Darracq, G. Hess, A. W. Parsons, B. Wells, G. W. Roemer, C. J. Hernandez, M. E. Gompper, S. L. Webb, J. P. Vanek, D. J. R. Lafferty, A. M. Bergquist, T. Hubbard, T. Forrester, D. Clark, C. Cincotta, J. Favreau, A. N. Facka, M. Halbur, S. Hammerich, M. Gray, C. C. Rega‐Brodsky, C. Durbin, E. A. Flaherty, J. M. Brooke, S. S. Coster, R. G. Lathrop, K. Russell, D. A. Bogan, R. Cliché, H. Shamon, M. T. R. Hawkins, S. B. Marks, R. C. Lonsinger, M. T. O'Mara, J. A. Compton, M. Fowler, E. L., K. E. Andy, J. L. Belant, D. E. Byer Jr., T. M. Kautz, D. G. Scognamillo, C. M. Schalk, M. S. Leslie, S. L. Nasrallah, C. N. Ellison, C. Ruthven, S. Fritts, J. Tleimat, M. Gay, C. A. Whittier, S. A. Neiswenter, R. Pelletier, B. A. DeGregorio, E. K. Kuprewicz, M. L. Davis, A. Dykstra, D. S. Mason, C. Baruzzi, M. A. Lashley, D. R. Risch, M. R. Price, M. L. Allen, L. S. Whipple, J. H. Sperry, R. H. Hagen, A. Mortelliti, B. E. Evans, C. E. Studds, A. P. K. Sirén, J. Kilborn, C. Sutherland, P. Warren, T. Fuller, N. C. Harris, N. H. Carter, E. Trout, M. Zimova, S. T. Giery, F. Iannarilli, S. D. Higdon, R. S. Revord, C. P. Hansen, J. J. Millspaugh, A. Zorn, J. F. Benson, N. H. Wehr, J. N. Solberg, B. D. Gerber, J. C. Burr, J. Sevin, A. M. Green, Ç. H. Şekercioğlu, M. Pendergast, K. A. Barnick, A. J. Edelman, J. R. Wasdin, A. Romero, B. J. O'Neill, N. Schmitz, J. M. Alston, K. M. Kuhn, D. B. Lesmeister, M. A. Linnell, C. L. Appel, C. Rota, J. L. Stenglein, C. Anhalt‐Depies, C. Nelson, R. A. Long, K. J. Jaspers, K. R. Remine, M. J. Jordan, D. Davis, H. Hernández‐Yáñez, J. Y. Zhao, and W. J. McShea. 2021. SNAPSHOT USA 2019: a coordinated national camera trap survey of the United States. Ecology 102(6): e03353. https://doi.org/10.1002/ecy.3353 \| Abstract \| Publisher Website	April 2021	With the accelerating pace of global change, it is imperative that we obtain rapid inventories of the status and distribution of wildlife for ecological inferences and conservation planning. To address this challenge, we launched the SNAPSHOT USA project, a collaborative survey of terrestrial wildlife populations using camera traps across the United States. For our first annual survey, we compiled data across all 50 states during a 14‐week period (17 August ‐ 24 November of 2019). We sampled wildlife at 1509 camera trap sites from 110 camera trap arrays covering 12 different ecoregions across four development zones. This effort resulted in 166,036 unique detections of 83 species of mammals and 17 species of birds. All images were processed through the Smithsonian’s eMammal camera trap data repository and included an expert review phase to ensure taxonomic accuracy of data, resulting in each picture being reviewed at least twice. The results represent a timely and standardized camera trap survey of the USA. All of the 2019 survey data are made available herein. We are currently repeating surveys in fall 2020, opening up the opportunity to other institutions and cooperators to expand coverage of all the urban‐wild gradients and ecophysiographic regions of the country. Future data will be available as the database is updated at eMammal.si.edu/snapshot‐usa, as well as future data paper submissions. These data will be useful for local and macroecological research including the examination of community assembly, effects of environmental and anthropogenic landscape variables, effects of fragmentation and extinction debt dynamics, as well as species‐specific population dynamics and conservation action plans. There are no copyright restrictions; please cite this paper when using the data for publication.
Cooper, T. R., J. R. Kelley, Jr., S. J. Williamson, M. Banker, D. R. Dessecker, D. G. Krementz, D. G. McAuley, W. L. Palmer, and T. J. Post. 2011. Development of habitat goals for the American woodcock conservation plan and recommendations for implementation. Pages 13-23. In (Stewart, C. A., and V. R. Frawley, eds.) Proceedings of the Tenth American Woodcock Symposium, Roscommon, MI. Allen Press, Inc. Lawrence, KS. \| Abstract	May 2011	American woodcock populations have experience long-term population declines. In response to the declines, the U.S. Fish and Wildlife Service developed national American woodcock management plans in 1985 and 1900. Both plans outlined general objectives and strategies for woodcock population and habitat management; however, they lacked quantifiable population and habitat goals, or overall objectives to guide woodcock management. In 2002, the Association of Fish and Wildlife Agencies charged the Woodcock Task Force (Task Force) to develop a more comprehensive conservation plan. The Task Force used data from the American Woodcock Singing Ground Survey and the U.S. Forest Service's Forest Inventory and Analysis Program to estimate woodcock densities during two time periods: 1970-1975 and 2000-2004. Differences between time periods were used to estimate woodcock population deficits for each Bird Conservation Region (BCR) throughout the species' core breeding range. The Task Force calculated population and habitat goals for each BCR by estimating the amount of habitat that needs to be created to return woodcock densities to levels observed during 1970-1975. We conclude with some recommendations for implementing the American Woodcock Conservation Plan.
Collier, B. A., and D. G. Krementz. 2007. Uncertainty in age-specific harvest estimates and consequences for white-tailed deer management. Ecological Modelling 201:194-204.	February 2007
Collier, B. A., and D. G. Krementz. 2007. Opinions and preferences of Arkansas deer hunters regarding harvest management. Proceedings of the Southeastern Association of Fish and Wildlife Agencies 61:54-59.	May 2008
Collier, B. A., and D. G. Krementz. 2006. White-tailed deer management practices on private lands in Arkansas. Wildlife Society Bulletin 34:307-313.	January 2006
Clifton, A. M, , and D. G. Krementz. 2006. Estimating numbers of greater prairie-chickens using mark-resight techniques. Journal of Wildlife Management. 70:479-484.	January 2006
Carroll, J. M., and D. G. Krementz. 2014. Density and abundance of wintering Wilson's snipe in the Mississippi Flyway. Wildlife Biology 20:108-114. \| Abstract	April 2014	Despite being widespread and relatively important as a webless game bird species, Wilson’s Snipe (Gallinago delicata) is one of the least studied North American game birds, and there are indications that snipe populations may be in decline. We conducted roadside surveys stratified at the township level in the Lower Mississippi Alluvial Valley in Arkansas, Mississippi and Louisiana, as well as, the Red River Region of Louisiana, and the Gulf Coastal Plain of Louisiana. While estimating detection and snipe densities for the study area, we identified observer, vegetation cover and water cover as important covariates. For 2009 and 2010 combined, we detected 3,979 snipe along 1,127 line transects (2,019 km). We estimated snipe densities of 9.18 inds/km2 (95% CI: 5.21 - 16.17) in 2009, 4.01 inds/km2 (95% CI: 2.76 - 5.84) in 2010 and 4.15 inds/km2 (95% CI: 3.02-5.70) in both years pooled. We used the resulting snipe density estimates within the study area to calculate abundance estimates of 1,167, 964 (95%CI: 664,312-2,061,788) in 2009, 511,303 (95%CI: 351,919- 744,641) in 2010 and 529,155 (95%CI: 385,072-726,791) in both years pooled. We found that a roadside line transect survey method produced reasonable density estimates for wintering snipe in the lower Mississippi Flyway, and could be considered as an appropriate method for future snipe population monitoring.
Caleb P Roberts. Using large-scale fire management to restore grassland bird richness on private lands. Great Plains Fire Science Exchange. Science Brief. \| Abstract \| Download	January 2022	There is no abstract
Budd, M. J., and D. G. Krementz. 2011. Status and Distribution of Breeding Secretive Marshbirds in the Delta of Arkansas. Southeastern Naturalist 10(4):687-702. \| Abstract	December 2011	We surveyed the Lower Mississippi Alluvial Valley of Arkansas (“Delta”) during the breeding seasons of 2005 and 2006 using the national marshbird monitoring protocol for secretive marshbirds. We detected and documented breeding by Podilymbus podiceps (Pied-billed Grebe), Ixobrychus exilis (Least Bittern), Rallus elegans (King Rail), and Gallinula chloropus (Common Moorhen). We detected but did not document breeding by Botaurus lentiginosus (American Bittern), Porphyrula martinica (Purple Gallinule), or Fulica americana (American Coot), all of which have been documented to breed in the Delta. Our estimated occupancy rates for breeding marshbirds in the study area ranged from a low of 6% for the King Rail in 2006 to a high of 27% for Least Bitterns in 2005. The range of these occupancy rates are low and reflect the rarity of secretive marshbirds in the Delta. Secretive marshbird occupancy rates were higher in the southern third of the Delta.
Budd, M. J., and D. G. Krementz. 2010. Habitat Use by Least Bitterns in the Arkansas Delta. Waterbirds 33. 140-147. \| Abstract	April 2010	Least Bittern (Ixobrychus exilis) occupancy surveys were conducted in the Arkansas Delta, USA during April-July 2005-2006 to determine the proportion of area occupied and to relate occupancy to habitat characteristics. Previous large scale surveys indicated few Least Bitterns were present in the Delta. During surveys at 190 sites, Least Bitterns were detected at 15 sites in 2005 and at 16 sites in 2006. Several candidate models were tested to explain occupancy based on habitat variables. Emergent vegetation cover was positively related to occupancy while the proportion of forest within 400 m of a survey site was negatively related to occupancy. Our study suggests that managing the breeding habitat of Least Bitterns for emergent vegetation cover and controlling forest cover near occupied sites may contribute to this species recovery throughout its range.
Bruckerhoff, L.A., D.R. Leasure and D.D. Magoulick. 2019. Flow-ecology relationships are spatially structured and differ among flow regimes. Journal of Applied Ecology 56:398-412. DOI:10.1111/1365‐2664.13297	February 2019
Bruckerhoff, L.A. and D.D. Magoulick. 2017. Hydrologic regimes as potential drivers of morphologic divergence in fish. Evolutionary Ecology 31:517-531. DOI:10.1007/s10682-017-9897-0	August 2017
Bolenbaugh, J. R., T. Cooper, R. S. Brady, K. L. Willard, and D. G. Krementz. Population status and habitat associations of the king rail in the Midwestern United States. Waterbirds 35:535-545. \| Abstract	December 2012	The migratory population of the King Rail (Rallus elegans) has declined dramatically during the past 50 years, emphasizing the need to document the distribution and status of this species to help guide conservation efforts. In an effort to guide King Rail breeding habitat protection and restoration, a landscape suitability index (LSI) model was developed for the Upper Mississippi River and Great Lakes Region Joint Venture (JV). To validate this model, 264 sites were surveyed across the JV region in 2008 and 2009 using the National Marshbird Monitoring protocol. Two other similarly collected data sets from Wisconsin (250 sites) and Ohio (259 sites) as well as data from the Cornell Laboratory of Ornithology's eBird data base were added to our data set. Sampling effort was not uniform across the study area. King Rails were detected at 29 sites with the greatest concentration in southeastern Wisconsin and northeastern Illinois. Too few detections were made to validate the LSI model. King Rail detection sites tended to have microtopographic heterogeneity, more emergent herbaceous wetland vegetation, and less woody vegetation. The migrant population of the King Rail is rare and warrants additional conservation efforts to achieve stated conservation population targets.
Bolenbaugh, J. R., D. G. Krementz, and S. E. Lehnen. 2011. Secretive marsh bird species co-occurrences and habitat association across the Midwest, USA. Journal of Fish and Wildlife Management 2:49-60. \| Abstract \| Publisher Website	June 2011	Because secretive marsh birds are difficult to detect, population status and habitat use for these birds are not well known. We conducted repeated surveys for secretive marsh birds across 264 sites in the Upper Mississippi River and Great Lakes Joint Venture region to estimate abundance, occupancy, and detection probabilities during the 2008 and 2009 breeding seasons. We identified species groups based on observed species co-occurrences. Two species, least bittern Ixobrychus exilis and American bittern Botaurus lentiginosus, co-occurred with other species less often than expected by chance, and two species groups, rails (Virginia rail Rallus limicola and sora Porzana carolina) and openwater birds (pied-billed grebe Podilymbus podiceps, common moorhen Gallinula chloropus, and American coot Fulica americana; coots were only surveyed in 2009), co-occurred more often than expected by chance. These groupings were consistent between years. We then estimated the relation of these species and groups to landscape and local site characteristics by using zero-inflated abundance models that accounted for incomplete detection. At the landscape level (5-km radius), the amount of emergent herbaceous wetland was positively associated with least bittern occupancy, whereas the amount of woody wetland was negatively associated with least bittern, rail, and open-water bird occupancy. At the local level, habitat variables that were associated with abundance were not consistent among groups or between years, with the exception that both least bitterns and open-water birds had a strong positive association between abundance and water–vegetation interspersion. Land managers interested in marsh bird management or conservation may want to consider focusing efforts on landscapes with high amounts of emergent herbaceous wetland and low amounts of woody wetland, and managing for high amounts of water–vegetation interspersion within the wetland
Berdeen, J. B., and D. G. Krementz. 2013. Unusual Courtship Behaviors by Male American Woodcock. Southeastern Naturalist 12: N1-N5.	August 2013
Bayer, L.M., R.J. Fournier and D.D. Magoulick. 2021. Modeling effects of crayfish invasion and drought on population dynamics of generalized crayfish life history strategies. Aquatic Conservation: Marine and Freshwater Ecosystems DOI: 10.1002/aqc.3516	February 2021
Annaratone, B., C. Larson, C. Prater, A. Dowling, D.D. Magoulick, and M.A. Evans-White. 2023. Predicting habitat and distribution of an Interior Highlands regional endemic winter stonefly (Allocapnia mohri) in Arkansas using random forest models. Hydrobiology 2:196–211. doi.org/10.3390/hydrobiology2010013	February 2023
Allen CR, Roberts CP. 2024. Futures of the Sandhills. Book chapter in The Nebraska Sandhills. \| Abstract	March 2024	NA
DeGregorio, B.A., J.H. Sperry, and P.J. Weatherhead. 2021 Factors Influencing the Use of Water-filled Tree Cavities by Eastern Ratsnakes (Pantherophis alleghaniensis). Herpetological Conservation and Biology 16(1):173-182. \| Download	April 2021

Presentations

Presentations	Presentation Date
Yarra, A.N., L.A. Bruckerhoff and D.D. Magoulick. 2016. Influence of flow regime, geomorphology and habitat on crayfish assemblages of the Ozark Highlands. Society for Freshwater Science, Sacramento, California.	May 2016	We sought to determine crayfish occupancy and species densities in two hydrologic regimes (Groundwater Flashy: GF and Intermittent Flashy: IF streams) in the Ozark Highlands, USA and examine relationships between crayfish species distribution and abundance and hydrologic regimes and local habitat variables. Our study showed that crayfish distributions are influenced by landscape level variables whereas crayfish abundance is more apt to be determined by both landscape and local habitat variables
Yarra, A.N., L.A. Bruckerhoff and D.D. Magoulick. 2015. Crayfish occupancy in response to hydrologic regime and geomorphology in Ozark streams. Symposium on Conservation, Ecology, and Taxonomy of Southeastern Crayfish, Southern Division American Fisheries Society, Savannah, Georgia.	January 2015	Crayfish are extremely important ecologically and a high percentage of species are of conservation concern. We examined occupancy of several species in response to hydrologic regime and geomorphology.
Wolff, P.J., B.A. DeGregorio, and J.D. Willson. Demonstration of a novel method for estimating the density of secretive snakes. SERDP-ESTCP Symposium, Dec 3-5 2019.	December 2019	This is demonstration of a novel modeling approach for estimating the density of secretive snakes.
Wolff, P.J., B.A. DeGregorio, and A. Rice. Demonstration of Subsurface Passive Acoustic Monitoring (SPAM) to Survey for Underwater-Calling Frogs. SERDP-ESTCP Symposium, Dec 3-5 2019.	December 2019	This is a method of using hydrophones to record and survey for frogs. Can be very helpful for certain species that tend to call underwater as opposed to in the air.
Wilson, K., C. Roberts, and B.A. DeGregorio. Effects of relative hog abundance on the occupancy and community composition of breeding birds. The Wildlife Society Annual Conference.	November 2023	Feral hogs are an economic and ecologically destructive invasive species. Because they alter the vegetation community via their foraging behavior and through consumption of acorns to suppress oak regeneration, they almost certainly affect the bird community although this is has not yet been assessed.
Wilson K, DeGregorio BA, Roberts CP, Chiavacci S. 2024. Effects of relative hog abundance on the occupancy and community composition of birds. Arkansas Chapter of The Wildlife Society. Mount Magazine State Park, Arkansas.	March 2024	Quantifying feral hog impacts on native biodiversity is critical for calibrating management priorities. Here, we discuss feral hog impacts on ground nesting birds in bottomland hardwoods.
Warner, N.S., L. Bayer and D.D. Magoulick. 2023. Influence of environmental variables on Spot Handed Crayfish (Faxonius punctimanus) morphology and sex. Arkansas Water Resources Conference, Fayetteville, Arkansas.	July 2023	Crayfish inhabit aquatic environments and exhibit a heightened sensitivity to environmental fluctuations. Recent human activities and climate change are affecting crayfish habitats, putting them under significant pressure. It is crucial to study the factors that influence their survival due to the importance of their role in the ecosystem.
Wagner, B.K. and D.D. Magoulick. 2017. Crayfish changes to the Arkansas Wildlife Action Plan after the first 10 years. Symposium on Challenges, insights and opportunities in crayfish conservation and ecology, Society for Freshwater Science, Raleigh, North Carolina.	June 2017	The Arkansas Wildlife Action Plan was revised in 2015. This plan describes the Species of Greatest Conservation Need (SCGN) and priority habitats that may receive funding through the State Wildlife Grant Program in Arkansas. During the decade that the original plan was in place, research was conducted involving 13 crayfishes resulting directly in the reduced conservation priority for seven of them.
Victoria M. Donovan; Caleb P. Roberts; Emma Keele; Dillon T. Fogarty; David A. Wedin; Dirac Twidwell. 2022. Enhancing forest stand resilience using targeted grazing and mechanical thinning in eastern ponderosa pine forest. North American Forest Ecology Workshop. Virtual meeting.	June 2022	We use crown fire simulation models to quantify to what extent targeted grazing, mechanical thinning targeting the vertical fuel stratum, and a combination of both treatments alter eastern ponderosa pine savanna stand resilience to wildfire by modelling their relative impacts on fuel stratum gap and subsequent crown fire occurrence under six different wildfire risk scenarios. We find that mechanical (vertical) thinning has the potential to alter the probability of crown fire in ponderosa pine s
Victoria M. Donovan, Jeffrey L. Beck, Carissa L. Wonkka, Caleb P. Roberts, Craig R. Allen, Dirac Twidwell. 2022. Divergent population parameters signal losses in resilience driven by global change drivers in pronghorn, an iconic rangeland species. Society for Range Management Conference. Albuquerque, NM.	February 2022	Conservation is increasingly focused on preventing species’ population losses before they occur. Our findings highlight the value of utilising population demographics as an indicator of population resilience to support preventative conservation efforts in the face of rapid global change.
Veon, J.V., B.A. DeGregorio, L.W. Naylor, K.J. Reinecke, B.C. Dabbert, D.W. Damarest, K.M. Hartke, and D.G. Krementz. Body Mass Dynamics in Wintering Waterfowl in the Lower Mississippi Alluvial Valley. North American Duck Symposium.	February 2023	Mallards are the most important recreational waterfowl species. Understanding how they respond to food resources on the landscape can help managers provide the necessary resources to improve body condition during a strenuous time and ultimately improve fitness.
Veon, J.V., B.A. DeGregorio, L Naylor, and D.G. Krementz.2022. Body mass dynamics in wintering mallards in the Lower Mississippi Alluvial Valley. Lower Mississippi Joint Venture Annual Conference.	October 2022	Mallards are culturally, economically, and ecologically important species. Evidence from western and european flyways indicates that the species may be getting larger over time. Using data from over 40 years, we show that in the Mississippi flyway, mallards are also increasing in size.
Veon, J., B.A. DeGregorio, D.G. Krementz, and L. Naylor. 2021. Trends in Mallard Body Mass in the Mississippi Alluvial Valley 1979-2021. The Wildlife Society Annual Conference.	November 2021	The Mallard is of great economic and cultural importance in Arkansas. Understanding how their body change has responded to landscape alteration over the last 40 years can provide insight into population health.
Veon, J. and B.A. DeGregorio. Habitat management for overwintering mallards: is it effective?	March 2020	This is a critical evaluation of habitat management and whether or not it translates to increased body mass index for overwintering mallards.
Using of mark-resight technique to estimate a greater prairie-chicken numbers in tallgrass prairie, Flint Hills, Kansas. Amy M. Clifton, David G. Krementz, Abby N. Powell, and Roger D. Applegate. 10th Wildlife Society Meeting. Burlington, VT.	September 2003
Tipton, Z., M. Evans-White, B.L. Annaratone, C.A. Larson, D.D. Magoulick, C. Prater and A. Dowling. 2022. Patterns in Winter Stonefly Species with Urbanization in a Deciduous-Forested Ozark Stream. Joint Aquatic Sciences Meeting, Grand Rapids, Michigan.	May 2022	Our objective was to study how <i>Allocapnia </i>spp. diversity changed along the river continuum from the primarily forested headwaters to larger orders impacted by urbanization and animal agriculture; we hypothesized that species diversity would decrease as we moved downstream in these watersheds. This survey can help guide NWA conservation efforts.
Tipton, Z., Annaratone, B., C. Larson, C. Prater, A. Dowling, D. Magoulick, and M. Evans-White. 2021. Patterns in winter stonefly diversity with urbanization in a deciduous-forested Ozark stream. Society for Freshwater Science, virtual meeting.	May 2021	We examined patterns in winter stonefly diversity with urbanization in a deciduous-forested Ozark stream.
Thatcher, B. S., D. G. Krementz, and M. S. Woodrey. 2005. Henslow's Sparrow winter survival estimates and response to prescribed burning. American Ornithologists? Union Mtg.	August 2005
Thatcher, B. S., D. G. Krementz, and M. S. Woodrey. 2003. The effects of prescribed fire on Henslow's Sparrow winter home range and movements in pine savanna habitats. Joint Meeting of the Northeast and Southeast Working Groups of PIF.	February 2003
Thatcher, B. S., D. G. Krementz, and M. S. Woodrey. 2002. Winter home range estimates of Henslow's Sparrows in coastal Mississippi. Amer. Ornithologists' Union Mtg.	September 2002
Tetzlaff, S.J., E. Astrada, B.A. DeGregorio, and J.H. Sperry. 3D Printed Models Aid in Identifying Factors Affecting Predation Risk for Juvenile Box Turtles	July 2019	An innovative method used for assesssing predation risk for juvenile turtles. Interesting ecological work that can help researchers understand how organisms choose habitats and the fitness consequences of those choices.
Tetzlaff, S.J., B.A. Kingsbury, J.H. Sperry, and B.A. DeGregorio. Effects of environmental enrichment on translocation success for eastern box turtles. SERD-ESTCP Annual Symposium, DoD. Washington, DC Dec 2-5, 2019.	December 2019	This is demonstration and validation of innovative research and conservation techniques widely applicable to a variety of wildlife species.
Stober, J. M., and D. G. Krementz. Oct 2000. Survival and reproductive biology of the Bachman's sparrow. Proc. Southeast Assoc. Fish Wildl. Agencies. Baton Rouge, LA.	October 2000
Stephenson, P.S., A. P.G. Dowling and D. G. Krementz. 2015. Emergent Wetland Pollinators: An Unknown Story. Joint meeting of the Kansas Entomological and Arkansas Entomological Societies. Fayetteville, AR.	April 2015	We are studying insect pollinator communities that use native and managed emergent wetlands.
Stein, B., A.N. Yarra and D.D. Magoulick. 2015. The importance of substrate size for crayfish in intermittent and groundwater streams. Arkansas Water Resources Center conference, Fayetteville, Arkansas.	June 2015	WE examined the effect of flow regime on crayfish habitat use.
Spring Migration of Mallards from Arkansas as Assessed by Satellite Telemetry. David Krementz, Kwasi Asante, and Luke Naylor. 2011. Joint Meeting of 11th North American Crane Workshop and 34th Annual Meeting of the Waterbird Society.	March 2011
Spotted turtle (Clemmys guttata) movement patterns in an urbanized landscape. Lassiter, E.V., B.A. DeGregorio, and J.H. Sperry. 2020. Arkansas Chapter of the Wildlife Society	March 2020	This is a presentation about movement patterns of an imperiled turtle species occurring on a military installation. The installation is interested in knowing how these turtles move in order to avoid overlap with turtle activity and training activity.
Sorensen, S.F., J.T. Fox and D.D. Magoulick. 2023. Importance of hydrology and spatial relationships for modeling Smallmouth Bass populations. Symposium on Current challenges and opportunities for flow ecology in adaptive flow management, Joint meeting of the Society for Freshwater Sciences, Australian Freshwater Sciences Society and New Zealand Freshwater Sciences Society, Brisbane, Australia.	June 2023	This study identified ecological thresholds, critical thermal minima and maxima of smallmouth bass, and predicted changes in climate, hydrology, and land use to model present and future distributions of smallmouth bass throughout the Ozark and Ouachita Interior Highlands. This research will be important in understanding how species distributions and community composition may shift due to climate and anthropogenic changes.
Sorensen, S.F. and D.D. Magoulick. 2022. Effect of disturbance on food chain length in Ozark streams. Symposium on Importance of food webs for trophic transfer across aquatic ecosystems, Joint Aquatic Sciences Meeting, Grand Rapids, Michigan.	May 2022	We hypothesized that streams with less stable flow regimes should have shorter food chain lengths than more stable flow regimes. This research will be important in further understanding energy movement, carbon fixation, and system stability and how they may change in response to shifts in climatic patterns and anthropogenic disturbances.
Some effects of forest management on wood thrush at Sherburne Wildlife Management Area.	August 2005
Shorebirds and secretive marsh birds of the Lower Mississippi Valley	August 2005
Shaw, M.S., Roberts, C., and B.A. DeGregorio. 2022. A Habitat Suitability Model for the Plains Spotted Skunk. The Wildlife Society Annual Conference, Spokane, WA.	November 2022	The eastern spotted skunk is a candidate for listing under the endangered species act. However, little is known about the distribution and habitat associations of the skunk across the non-forested portion of its geographic range. Here, we collected several hundred existing records of the species to develop a habitat suitability model to guide its conservation and future survey efforts.
Shaw, M., C. Roberts, B. Sasse, and B.A. DeGregorio. Habitat Associations of Two Very Different Skunk Species. Southeastern Association of Fish and Wildlife Agencies Furbearer Working Group.	May 2023	While some skunk species are experiencing precipitous population declines while others are abundant and have adapted to living in human-altered environments. We know relatively little about the basic ecology of most skunks and here we explore the habitat associations and distributions of two species, the Plains Spotted Skunk and the Striped Skunk.
Shaw, M., B.A. DeGregorio, and C.R. Roberts. Plains Spotted Skunk Distribution and Habitat Associations in the Great Plains. Oral Presentation.	November 2023	The plains spotted skunk is declining and is a candidate for federal protection. Little is known about its distribution or habitat associations outside of several mountainous areas.
Shaw, M., B.A. DeGregorio, and C. Roberts. Eastern spotted skunk species distribution model across the Great Plains region. 33rd Annual Colloquium on the Conservation of Mammals in the Southeastern U.S.	March 2023	The eastern spotted skunk is declining rangewide and is a candidate for listing under the Endangered Species Act. We know very little about their habitat associations in the non-forested portions of its range. Here, we shed light on some of these associations across its Great Plains distribution.
Seaman, B. D., and D. G. Krementz. Oct 2000. Movements and survival of Bachman's sparrows in response to prescribed summer burns in South Carolina. Proc. Southeast Assoc. Fish Wildl. Agencies. Baton Rouge, LA.	October 2000
Scott, M.K., S.W. Hodges and D.D. Magoulick. Relationship between land use and stream fish assemblage structure at multiple spatial scales in two ecoregions of Arkansas. Southern Division American Fisheries Society, Little Rock, AR.	February 2002
Scott, M.K. and D.D. Magoulick. 2006. Swimming performance of five warmwater stream fish species. Southern Division American Fisheries Society, San Antonio, Texas.	February 2006
Scott, M.K. and D.D. Magoulick. 2003. Relationship between flow regime, habitat complexity and fish assemblage structure in Arkansas Ozark streams. Southern Division American Fisheries Society, Wilmington, NC. February 2003.	February 2003
Scott, M.K. and D.D. Magoulick. 2003. Relationship between flow regime, habitat complexity and fish assemblage structure in Arkansas Ozark streams. Arkansas-Tennessee American Fisheries Society meeting, Jackson, TN. March 2003.	March 2003
Schmit, Jessica, Fournier, Auriel M.V., Roberts, Caleb P., Rowe, Karen. Understanding Migration Ecology and Strategies of Arkansas King Rails. 2023. Waterbird Society Annual Meeting. Fort Lauderdale, FL, USA.	October 2023	King Rails are a threatened waterbird species that have declined throughout their range. We discuss outcomes of a migration ecology project set in Arkansas.
Schmit JM, Fournier AMV, Roberts CP, Rowe K. Breeding and Migration Ecology and Distribution and Abundance of Arkansas King Rails. Waterbirds Society Annual Meeting. Corpus Christi, TX. 2022.	November 2022	King rails (Rallus elegans), an emergent wetland specialist, are declining throughout their range. Here, we discuss preliminary results for a king rail breeding and migration ecology project based in southeastern Arkansas.
Schmit JM, Fournier AMV, Roberts CP, Rowe K. 2024. Breeding and Migration Ecology of Arkansas King Rails. Arkansas Chapter of The Wildlife Society. Mount Magazine State Park, AR.	March 2024	King Rails are declining across their range. Here, we discuss results from a King Rail nest selection and site fidelity study in Southeast Arkansas.
Schmit JM, Fournier AMV, Roberts CP, Rowe K. 2023. Breeding and Migration Ecology of Arkansas King Rails. Arkansas Chapter of The Wildlife Society. Morrilton, AR.	March 2023	King Rails (Rallus elegans) are emergent wetland obligates, migratory birds, and are declining throughout their range. Here, we discuss preliminary results of a GPS telemetry study and nesting habitat selection study to inform King Rail conservation and management.
Schmit J, Fournier AMV, Roberts CP, Rowe K. 2024. Factors Influencing Nest Site Selection in Arkansas King Rails on Different Spatial Scales. International Association of Landscape Ecology-North America annual conference. Oklahoma City, OK, USA.	April 2024	King Rails are a threatened secretive marsh bird species on decline throughout its range. We discuss results from a study on their nest site selection, which will inform management in Arkansas.
Savitsky, G. and D.D. Magoulick. 2019. Headwater Stream Algal Response to Nutrient Increase Across Flow Regimes. Arkansas Water Resources Conference, Fayetteville, Arkansas.	July 2019	Anthropogenic processes have greatly increased the amount of nutrients flowing into stream headwaters, and primary producers are highly vulnerable to nutrient fluctuations, which can reverberate throughout food webs. We found that effects of increased nutrients are site-dependent, suggesting managers may wish to focus on streams as their management unit.
Ruther, E.V., J.H. Sperry, and B.A. DeGregorio. Regional Trends in Spotted Turtle Movement	July 2019	Understanding how movement patterns vary across the geographic range of this imperiled reptile species.
Ruther, E.V., J.H. Sperry, and B.A. DeGregorio. Regional Trends in Spotted Turtle (Clemmys guttata) Movement Patterns	October 2019	Investigation of variation in movement patterns across the geographic range of an imperiled turtle species.
Ruther, E.V., B.A. DeGregorio, and J.H. Sperry. 2020. Drivers of Spotted Turtle (Clemmys guttata) Movement and Space Use in an Urbanized Landscape	September 2020	This work concerns the movement patterns of a candidate species on US military lands.
Ronke, M.E., D. G. Krementz, and L. W. Naylor. 2013. Survival and Recovery of Temperate-nesting Canada Geese Banded in Arkansas. Arkansas State Chapter of The Wildlife Society Meeting, Russellville, AR.	September 2013	Temperate-nesting Canada geese were reintroduced to Arkansas and have rapidly increased both in number and extent. We estimated survival and recovery rates to better predict future goose population dynamics.
Roberts CP, Donovan VM, Scasta JD, Twidwell D, Thacker E, Wilbur RW, Fuhlendorf S. 2024. A light in the darkness: rangeland wildlife responses to fire and ecoregion-scale fire-based restoration. The Wildlife Society Annual Conference. Baltimore, MD, USA.	October 2024	This is an invited presentation to a TWS Symposium covering the new book <u>Rangeland Wildlife Ecology and Conservation</u>. It will discuss the response of rangeland wildlife to fire and successes in fire-based restoration.
Roberts CP, Donovan VM, Fogarty DT. 2025. Waning grasslands and waxing woodlands: bird community responses to biome-scale regime shifts in the Great Plains of North America. IALE-North America Annual Conference. Raleigh, NC.	April 2025	We use the North American Great Plains as a focal biome to test two hypotheses: 1) as tree cover increases across the biome, grassland bird abundance and diversity will decrease while woodland bird abundance will increase, and 2) grassland bird abundance will decrease over time while woodland bird abundance will increase over time. Overall, our results provide a clear picture of the anatomy of an ongoing biome-scale regime shift.
Roberts CP, Cady SM, Donovan VM, Fogarty DT, Scholtz R, Twidwell D, Uden DR. 2024. Successes, challenges, and scientific advances gleaned from ecoregion-scale grassland restoration in the Loess Canyons, Nebraska. Society for Range Management 2024 Annual Meeting. Sparks, NV.	January 2024	We synthesize successes, ongoing challenges, and scientific advances gleaned from >14 years of Loess Canyons’ efforts. We show grassland bird, insect, and grassland biomass recovered as a result of large-scale fire and grassland restoration efforts.
Reese, R.A., D.D. Magoulick, and J.P. Ludlam. 2012. Effect of nutrient enrichment and large benthic grazers on stream ecosystem structure. Ozark Summit, Springfield, Missouri.	June 2012
Reese, R.A., D.D. Magoulick, and J.P. Ludlam. 2012. Effect of nutrient enrichment and large benthic grazers on stream ecosystem structure. Fulbright Colloquium: Integral Approaches to Knowledge, University of Arkansas, Fayetteville, Arkansas.	March 2012
Reddin, C., and D. G. Krementz. 2014. Texas mice habitat use in the Ozark Mountains. 74th Midwest Fish & Wildlife Conference. Kansas City, MO.	January 2014	Texas mice are restricted to a limited region primarily in Texas where they are associated with rocky habitats and juniper cover. Current removal of juniper on public lands may result in unintended reductions in Texas mouse abundance and distributions.
Reddin, C. J., and D. G. Krementz. 2013. Small Mammal Community Associations at Pea Ridge National Military Park, Benton County, Arkansas. Arkansas State Chapter of The Wildlife Society, Russellville, AR.	September 2013	We surveyed the small mammal community at the Pea Ridge National Military Park, Benton County, Arkansas to assess habitat relationships. These data will allow land managers to better conserve small mammal communities there as habitat management is implemented.
Rabalais, M.R. and D.D. Magoulick. 2004. Habitat use of an introduced and native crayfish species in the Spring River drainage. Southern Division American Fisheries Society, Oklahoma City, OK.	February 2004
Pittman, H.T. and D.G. Krementz. 2015. Consideration of scale in the restoration of woodland and savanna ecosystems in the Central Hardwoods of North America. Ecological Society of America. Baltimore, MD	August 2015	Large scale habitat restoration has rarely been undertaken and most restoration strategies are developed based on small-scale experiments. We measured vegetation responses to large-scale and lont-term woodland/savanna restoration efforts in the Central Hardwoods and found few measurable changes after 10 years of management.
Pittman, H. T., D. G. Krementz, R. S. Whalen, B. Bowers, and K. Lynch. 2013. Survival of Eastern Wild Turkey in the Ozark Highlands, Arkansas. 2013. Arkansas State Chapter of The Wildlife Society. Russellville, AR	September 2013	Eastern wild turkey populations in the Arkansas Ozark Highlands have declined and low reproductive success is thought to be the main problem. We estimated survival rates of female turkeys there to better understand the population dynamics.
Pittman, H. T. , and D. G. Krementz. 2013. Nest site selection of eastern wild turkey in the Ozark Highlands of Arkansas. The Wildlife Society Meeting. Milwaukee, WI.	October 2013	The impact of growing season prescribed burns in oak woodlands on turkeys is unknown. We initiated a study to examine nest habitat selection by turkeys in oak woodlands under growing season burns to better understand how to better manage those stands.
Piercey, G.L., S.E. Ziegler and D.D. Magoulick. 2003. Potential competition for prey between introduced crayfish (Orconectes neglectus) and native crayfish (Orconectes eupunctus) in Ozark streams: a stable isotope analysis. North American Benthological Society, Athens, Georgia. May 2003.	May 2003
Piercey, G. L. and D.G. Krementz. 2002. Tracing Migration Routes of the American Woodcock (Scolopax minor) Using Multiple Stable Isotopes. Isotopes and Avian Research Session, The 3rd International Conference on Applications of Stable Isotope Techniques to Ecological Studies. Flagstaff, AZ. May 2002.	June 2002
Percival Marshall, Caleb P. Roberts. 2023. A global-scale test of stationarity in habitat associations: the case of invasive Egyptian Geese (Alopochen aegyptiaca) across three continents. International Association of Landscape Ecology-North America Annual Conference. Riverside, CA.	March 2023	For invasive species in particular, understanding the ability and patterns of species adaptations to novel environments is critical to effective management. Here, our objectives are 1. Characterize how and to what degree Egyptian Geese environmental relationships are stationary or nonstationary between their native continent (Africa), an established invasion in Europe, and an incipient invasion in North America and 2. Make predictions for likely future invasion patterns of the Egyptian Goose in
Percival Marshall, Caleb P. Roberts. 2023. A global-scale test of stationarity in habitat associations: the case of invasive Egyptian Geese (Alopochen aegyptiaca) across three continents. Arkansas Chapter of The Wildlife Society. Morrilton, AR.	March 2023	For invasive species in particular, understanding the ability and patterns of species adaptations to novel environments is critical to effective management. Here, our objectives are 1. Characterize how and to what degree Egyptian Geese environmental relationships are stationary or nonstationary between their native continent (Africa), an established invasion in Europe, and an incipient invasion in North America and 2. Make predictions for likely future invasion patterns of the Egyptian Goose in
Northern Bobwhite Occupancy Patterns on Multiple Spatial Scales. 2022. Ellery Lassiter, John Veon, Chris Middaugh, Andrhea Massey, Marcus Asher, Cody Massery, Grace Christie, Connor Gale, and Brett DeGregorio. Wildlife Society Annual Conference, Spokane, WA.	November 2022	Northern bobwhite are culturally and ecologically important birds that are declining across much of their range in the southeastern United States. Working with Arkansas Game and Fish Commission, we have developed a species distribution model to predict suitable habitat for bobwhite across the state to guide management and conservation focus.
Northern Bobwhite Occupancy Patterns on Multiple Spatial Scales Across Arkansas. 2022. Ellery Lassiter, John Veon, Chris Middaugh, Andrhea Massey, Marcus Asher, Cody Massery, Grace Christie, Connor Gale, and Brett DeGregorio. Arkansas Chapter of the Wildlife Society Annual Conference.	March 2022	Habitat suitability analysis of an important and declining upland game bird.
Naylor, L.W., D. G. Krementz, and S. E. Lehnen. 2013. A Watershed-based Aerial Survey to Estimate Wintering Duck Abundance. Ecology and Conservation of North American Waterfowl Meeting. Jackson, MS	January 2013	We evaluated the efficiency of a watershed based aerial survey for sampling waterfowl in the Arkansas Delta. We found that our new design was efficient and effective as compared to two other traditional sampling designs.
Moore, J.D., D. E. Andersen, T. R. Cooper and D. G. Krementz. 2016. Migratory connectivity an migration phenology of American woodcock. 2016 State of Stopover Symposium. Milwaukee, WI.	October 2016	Migration ecology of American woodcock is poorly understood. We marked with satellite transmitters a sample of American woodcock and tracked them for three years to document phenology and migration connectivity.
Modeling white-tailed deer population responses to regulatroy influences at multiple spatial scales.	February 2005
Modeling impacts of harvest management and population demographics using probabilistic networkds.	February 2005
Middaugh, C.R. and D.D. Magoulick. 2015. Forecasting the effects of angler harvest and climate change on smallmouth bass abundance at the southern edge of their range. Southern Division American Fisheries Society, Savannah, Georgia.	January 2015	Climate change is expected to alter hydrologic regimes and temperatures of stream systems across the United States, affecting stream ecosystems in complex ways. Preliminary results indicate that both climate change and angler harvest can play a critical role in influencing smallmouth bass population dynamics.
Middaugh, C.R. and D.D. Magoulick. 2015. Forecasting effects of angler harvest and climate change on smallmouth bass at the southern edge of their range. Symposium on Warm-Water Fishes in a Warming World: Impacts of Climate Change on Populations, Distributions, and Habitat, American Fisheries Society, Portland, Oregon.	August 2015	Climate change is expected to alter hydrologic regimes and temperatures of stream systems across the United States, affecting stream ecosystems in complex ways and deviations from historic precipitation and temperature patterns due to climate change will affect lotic fish populations. Preliminary results indicate that both climate change and angler harvest can play a critical role in influencing smallmouth bass population dynamics.
Middaugh, C.R. and D.D. Magoulick. 2015. Forecasting effects of angler harvest and climate change on smallmouth bass abundance and growth in the Buffalo River, AR. Arkansas American Fisheries Society, Benton, Arkansas.	February 2015	Forecasting effects of angler harvest and climate change on smallmouth bass abundance and growth in the Buffalo River, AR.
Mctigue, L. and B.A. DeGregorio. 2022. Mesocarnivore density along an urban to rural gradient. The Wildlife Society Annual Conference. Spokane, WA.	November 2022	Game cameras are rapidly becoming an essential tool to study wildlife. Here, we use game cameras to estimate the density of unmarked mammals at 12 study sites along an urban to rural gradient.
McTigue, L.E. and B.A. DeGregorio. 2023. Effects of Landcover on Mesocarnivore Density Along an Urban to Rural Gradient.	March 2023	Conversion of forested areas to human development has major repercussions for wildlife communities. Here, we use wildlife cameras to evaluate how the wildlife community and density of 5 mesocarnivores varies along an urban to rural gradient and explore the potential ramifications for these changes to community structure.
Maydeliz Ramos-Gonzalez, Levi D. Sweeten, Katherine A. Travis, C. M. McKinney, E. P. Tanner, A. M. Tanner, L. A. Brennan, F. Hernández, D. G. Hewitt, D. B. Wester, J. A. Smith, J. McLaughlin, H. L. Perotto-Baldivieso, C. P. Roberts. 2025. Evaluating Avian Community Response to Spatial Regime Shifts in the Tamaulipan Biotic Province. Texas Chapter of The Wildlife Society Annual Conference. Denton, TX.	February 2025	Woody plant encroachment alters communities. Here, we investigate responses of avian communities in Texas to woody encroachment via a "spatial regimes" metric.
Marshall PM, Roberts CP, Willson JD, Mortense J. 2022. A Systematic Review of the Impacts and Influences of Invasive Waterfowl on North America. Arkansas Chapter of The Wildlife Society.	March 2022	In order to respond to the presence of invasive species, it is critical to understand what impacts they are likely to pose to a given area. Here we are undertaking a systematic literature review to understand the ecological impacts of invasive waterfowl in North America, with an eye for assessing the scope, distribution, and scale of studies on invasive waterfowl.
Marshall P, Willson JD, Mortensen J, Roberts CP. 2022. A Systematic Review of the Impacts and Influences of Invasive Waterfowl on North America. The Wildlife Society National Conference. Spokane, WA.	November 2022	Invasive waterfowl have the potential to negatively impact both terrestrial and aquatic systems. This poster will present a systematic review of these impacts in North America.
Marlis R. Douglas, H. Tyler Pittman, Whitney J.B. Anthonysamy, Mark A. Davis, David G. Krementz, Robert E. Vernocy Jr, and Michael E. Douglas. 2012. New tools for the next generation of wildlife professionals: molecular ecology of wild turkey from the interior highlands of Arkansas.	October 2012	We suggest new genetic tools for use in estimating population abundance and genetic relatedness among turkey populations.
Maner, A., K. Smith and D.D. Magoulick. 2018. The Effect of Flow Regime on Rainbow Darter (Etheostoma caeruleum) Body Condition in the Ozark Highlands. Arkansas Water Resources Conference, Fayetteville, Arkansas.	July 2018	Natural flow regimes can be an overarching factor affecting stream fish. We found flow regime had little effect on body condition of Rainbow Darters.
Magoulick, D.D.. 2013. Relationship between hydrologic variability and fish assemblage structure. Special session on Temporary River Ecology, Society for European Freshwater Science, Münster, Germany.	July 2013	I examined the relationship between hydrologic variability and fish assemblage structure by comparing three intermittent streams to three perennial groundwater streams. Fish density appears more strongly linked to hydrologic variability and drying disturbance than species richness and persistence in these systems.
Magoulick, D.D., and C.A. Flinders. Oct 2000. Lotic crayfish community structure in the Ozark Mountains with a focus on the imperiled Mammoth Spring crayfish (Orconectes marchandi). Natural Areas Conference. St. Louis, Missouri.	October 2000
Magoulick, D.D., and C. Moore. 2024. Taxonomic and functional assemblage turnover thresholds in response to hydrologic alteration and temperature across flow regimes. Society for Freshwater Sciences, Philadelphia, Pennsylvania.	June 2024	We discuss taxonomic and functional assemblage turnover thresholds in response to hydrologic alteration and temperature across flow regimes. Taxonomic and functional thresholds often differ so managers and researchers should choose variables based on their questions and needs.
Magoulick, D.D., S.W. Hodges, M.P. Dekar, M.K. Scott and M.R. Rabalais. 2003. Factors affecting fish movement in Ozark streams: potential impact of barriers. American Fisheries Society, Quebec, Canada. August 2003.	August 2003
Magoulick, D.D., S.W. Hodges, M.K. Scott, C.M. Bare, M.P. Dekar and G.R. Huxel. 2010. Effects of stream drying on fish refuge use and species persistence: forecasting effects of global climate change. University of Missouri.	April 2010
Magoulick, D.D., S.W. Hodges, M.K. Scott, C.M. Bare, M.P. Dekar and G.R. Huxel. 2009. Forecasting effects of global climate change on fish refuge use and species persistence. IUCN Symposium on Challenges and opportunities in conserving the indigenous freshwater fishes of Australia, Adelaide, Australia.	November 2009
Magoulick, D.D., M.P. Dekar, S.W. Hodges, M.K. Scott, C.M. Bare and M.R. Rabalais. 2006. Relationship of hydrologic variability and disturbance to temporal variability in fish assemblage structure. North American Benthological Society, Anchorage, Alaska.	June 2006
Magoulick, D.D., L.M. Bayer and R. Fournier. 2018. Modeling effects of crayfish invasion and drought on crayfish population dynamics. International Association of Astacology, Pittsburgh, Pennsylvania.	July 2018	North American crayfish species face several environmental and ecological threats including invasive species and intensified drought and demographic models can allow examination of population dynamics of a targeted species under a wide variety of disturbance scenarios. By constructing models that explore a broad array of life histories and disturbance regimes, we hope to provide managers with tools to develop generalized, widely-applicable conservation strategies in data-depauperate systems.
Magoulick, D.D., K.C. Wynne and J. Clark. 2022. Morphological traits related to potential invasiveness of two subspecies of the crayfish Faxonius neglectus. Symposium on Detection, Control, and Eradication of Invasive Crayfishes, American Fisheries Society, Spokane, Washington.	August 2022	One example of an extraregional and extralimital invader is the Ringed Crayfish (<i>Faxonius</i> <i>neglectus</i>), which has been independently introduced multiple times to drainages throughout the US, including those adjacent to its native range. Morphological characteristics suggest that <i>F.</i><i> neglectus chaenodactylus</i> and some populations of <i>F. neglectus neglectus</i> may be pre-adapted to the role of invader.
Magoulick, D.D., J.T. Westhoff, R.J. DiStefano and C.F. Rabeni. 2010. Does juvenile competition explain displacement of imperiled Big Creek crayfish by invasive woodland crayfish? International Association of Astacology, Columbia, Missouri.	July 2010
Magoulick, D.D., J.T. Westhoff, R.J. DiStefano and C.F. Rabeni. 2010. Do invasive Woodland crayfish competitively displace imperiled Big Creek crayfish? Joint meeting of American Society for Limnology and Oceanography and North American Benthological Society, Santa Fe, New Mexico.	June 2010
Magoulick, D.D., J.T. Fox, A. Yarra, R. Fournier, L. Bayer. 2024. Environmental thresholds and other approaches for aquatic conservation. U.S. Fish and Wildlife Service and U.S. Geological Survey Coop Unit Liaisons meeting.	June 2024	I discuss our environmental thresholds research and other approaches for aquatic conservation, especially of interest to USFWS and other stakeholders.
Magoulick, D.D., J.T. Fox, A. Yarra, R. Fournier, L. Bayer. 2020. Arkansas Coop Unit Species Status Assessment-related approaches and studies. U.S. Fish and Wildlife Service Workshop, Atlanta, Georgia.	February 2020	Species status assessments are vitally important to the work of USFWS. We discuss approaches and studies related to SSA activities.
Magoulick, D.D., J.T. Fox and S.F. Sorensen. 2023. Landscape-Scale Hydrologic and Environmental Thresholds on Patterns of Fish and Macroinvertebrate Assemblage Structure Across Stream Flow Regimes. Symposium on Current challenges and opportunities for flow ecology in adaptive flow management, Joint meeting of the Society for Freshwater Sciences, Australian Freshwater Sciences Society and New Zealand Freshwater Sciences Society, Brisbane, Australia.	June 2023	A gradient forest machine learning approach was used to quantify multi-species threshold responses along hydrologic and watershed-scale disturbance gradients in streams in the Interior Highlands, USA. The results of our analysis provide detailed information on important environmental and disturbance thresholds driving patterns in fish and macroinvertebrate assemblages and species in streams to better manage environmental flows, watershed fragmentation and land use.
Magoulick, D.D., J.T. Fox and S.F. Sorensen. 2023. Landscape-Scale Hydrologic and Environmental Thresholds on Patterns of Fish and Macroinvertebrate Assemblage Structure Across Stream Flow Regimes. Ecological Society of America conference, Portland, Oregon.	August 2023	A gradient forest machine learning approach was used to quantify multi-species threshold responses along hydrologic and watershed-scale disturbance gradients in streams in the Interior Highlands, USA. The results of our analysis provide detailed information on important environmental and disturbance thresholds driving patterns in fish and macroinvertebrate assemblages and species in streams to better manage environmental flows, watershed fragmentation and land use.
Magoulick, D.D., G.R. Huxel, M.P. Dekar, S.W. Hodges and C.M. Bare. 2008. Effects of stream drying on fish refuge use and species persistence: forecasting effects of global climate change. Special session on Effects of Climate-Related Drying and Surface Water Loss on Aquatic Ecosystems in Extreme Environments, American Fisheries Society, Ottawa, Ontario, Canada.	August 2008
Magoulick, D.D., G.L. Piercey and S.E. Ziegler. 2004. Seasonal feeding relationships between an introduced (Orconectes neglectus) and native crayfish (Orconectes eupunctus) in Ozark streams: a stable isotope analysis. Special session on New directions in food web analysis, North American Benthological Society, Vancouver, British Columbia.	June 2004
Magoulick, D.D., E.R. Larson, K.H. Laycock and J.P. Ludlam. 2009. Predation and stream drying differentially affect survival and habitat use of a native and invasive crayfish. Australian Society for Limnology, Alice Springs, Australia.	October 2009
Magoulick, D.D., E.R. Larson, K.H. Laycock and J.P. Ludlam. 2008. Predation and stream drying differentially affect survival and habitat use of a native and invasive crayfish. North American Benthological Society, Salt Lake City, Utah.	May 2008
Magoulick, D.D., D. Lynch, D. Leasure, S. Longing, R. Fournier, L. Bayer, S. Hodges, M. Scott, M. Dekar, M. Rabalais and C. Bare. 2021. The role of drought in aquatic systems: Population and community dynamics. USGS webinar series.	June 2021	Drought is a natural disturbance of aquatic and terrestrial ecosystems in many regions worldwide and can be a major factor in structuring aquatic communities. I will discuss hydrology and drought, the potential role of climate change, fish refuge use and population dynamics in drying streams, the influence of flow regime and drought on fish assemblage structure and stability, and modeling effects of climate change and drought on fish and crayfish species persistence.
Magoulick, D.D., C.M. Bare, M.P. Dekar, S.W. Hodges, C.A. Flinders and A.N. Dick. 2005. Intermittent streams and habitats function as refugia for fish and crayfish. Special session on Temporary Waters: Ecological Values, Policy, and Management, North American Benthological Society, New Orleans, Louisiana.	May 2005
Magoulick, D.D., C.A. Flinders and R.J. DiStefano. June 2001. Environmental factors affecting distribution and habitat selection of stream-dwelling crayfish. Special session on Ecology and Conservation of Crayfish, North American Benthological Society. LaCrosse, Wisconsin.	June 2001
Magoulick, D.D., J.W. Fetzner Jr., R.J. DiStefano, B.K. Wagner, E.M. Imhoff and M.S. Nolen. 2012. Gene flow and phylogeographic patterns in imperiled Coldwater Crayfish populations in the Ozarks. Special session on Recent advances in crayfish biology, ecology, and conservation, Society for Freshwater Science, Louisville, Kentucky.	May 2012
Magoulick, D.D. and S.W. Hodges. 2002. Seasonal dynamics of fish movement in Ozark streams. Joint meeting of the Missouri Department of Conservation and Arkansas Game and Fish Commission, Eureka Springs, Arkansas. October 2002.	October 2002
Magoulick, D.D. and R. Reese. 2013. Effect of Nutrient Enrichment and Large Benthic Consumers on Stream Ecosystem Structure. Special session on Nutrients, Aquatic Food Webs, and Fisheries Management, American Fisheries Society, Little Rock, Arkansas.	September 2013	This study examined effects of nutrients and large benthic consumers on benthic ecosystem structure. We found that nutrient enrichment can reduce effects of benthic consumers and this suggests that nutrient enrichment could alter food web dynamics and energy flow in stream systems other than typical bottom-up effects. This has important implications for systems likely to become nutrient enriched.
Magoulick, D.D. and P. Costello. 2013. Comparison of Demographic and Individual Based Models Examining Effects of Drought on Fish Population Dynamics, Refuge Use and Species Persistence at Multiple Spatial Scales. Special session on Finding Simplicity In Complexity: Matching Models To Data, American Fisheries Society, Little Rock, Arkansas.	September 2013	This study compared the effectiveness and characteristics of demographic and individual based models in examining effects of drought on fish population dynamics, refuge use and species persistence.
Magoulick, D.D. and N.E. Graham. 2017. Effects of invasive species source population and drought on crayfish population dynamics and ecosystem structure and function. Symposium on Challenges, insights and opportunities in crayfish conservation and ecology, Society for Freshwater Science, Raleigh, North Carolina.	June 2017	Source population of an invader may alter ecosystem effects on recipient communities. Results indicate extraregional and extralimital invaders may have different effects on ecosystems, and drought can have strong effects on ecosystem processes, but these effects may be context dependent.
Magoulick, D.D. and M.S. Nolen. 2013. Influence of spatial scale on factors affecting three endemic crayfish species. Special session on Progress and challenges in scaling pattern and process in aquatic ecosystems, Society for Freshwater Science, Jacksonville, Florida.	May 2013	We examined how natural and anthropogenic factors influence three endemic crayfish species, Orconectes eupunctus, Orconectes marchandi, and Cambarus hubbsi, across multiple spatial scales.
Magoulick, D.D. and M.K. Scott. 2008. Influence of land use, flow regime and ecoregion on stream habitat and fish assemblage structure. Arkansas Water Resources Conference, Fayetteville, Arkansas.	February 2008
Magoulick, D.D. and L.C. Lewis. August 2000. Prey switching by blue catfish: The role of introduced zebra mussels. American Fisheries Society. St. Louis, Missouri.	August 2000
Magoulick, D.D. and J.T. Fox. 2020. A Gradient Forest Approach for Exploring Landscape-Scale Hydrologic and Environmental Thresholds on Patterns of Fish Assemblage Structure in Streams. Symposium on Landscape-scale Dataset and Assessments to Advance Freshwater and Marine Conservation Planning and Delivery, Southern Division American Fisheries Society, Little Rock, Arkansas.	February 2020	We used a gradient forest approach to quantify multi-species threshold responses along environmental and hydrologic gradients in streams in the Ozark and Ouachita Highlands and Gulf Coastal Plains and identified numerous nonlinear threshold responses where significant changes in community composition occur. The results of our analysis provide detailed information on important environmental and disturbance thresholds driving patterns in fish assemblages in intermittent and perennial streams to b
Magoulick, D.D. and J.T. Fox. 2019. Predicting hydrologic disturbance of streams using species occurrence data. Symposium on Habitat and Distribution Modeling Across Terrains and Disciplines: Addressing Common Challenges in Fisheries and Wildlife, American Fisheries Society/The Wildlife Society, Reno, Nevada.	September 2019	We used fish species occurrence data to predict stream hydrologic disturbance with high effectiveness. Managers could use this approach to determine hydrologic disturbance with existing biological data.
Magoulick, D.D. and J.T. Fox. 2019. Predicting hydrologic disturbance of streams using species occurrence data. Society for Freshwater Science, Salt Lake City, Utah.	May 2019	We used fish species occurrence data to predict stream hydrologic disturbance with high effectiveness. Managers could use this approach to determine hydrologic disturbance with existing biological data.
Magoulick, D.D. and J.P. Ludlam. 2009. Effects of disturbance and consumer identity on stream ecosystem structure and function. North American Benthological Society, Grand Rapids, Michigan.	May 2009
Magoulick, D.D. and J.M. Flinders. 2011. Rainbow trout: Are they what they eat? White River Fisheries Partnership, Mountain Home, Arkansas.	October 2011
Magoulick, D.D. and J.M. Flinders. 2011. Effects of Prey and Tissue Type on δ13C and δ15N Fractionation and Turnover Rates of Rainbow Trout. American Fisheries Society, Seattle, Washington.	September 2011
Magoulick, D.D. and E.R. Larson. 2008. Effects of an introduced crayfish, Orconectes neglectus, on native crayfish in the Spring River drainage. Arkansas Wildlife Action Plan Conference, Mt. Magazine, Arkansas.	September 2008
Magoulick, D.D. and D.T. Lynch. 2015. Flow-ecology relationships of fishes in the Ozark Highlands. American Fisheries Society, Portland, Oregon.	August 2015	We examined flow-ecology relationships in the Ozark Highlands over two years with contrasting environmental conditions, a drought year (2012) and a flood year (2013).
Magoulick, D.D. and D.T. Lynch. 2014. Effects of seasonal drying on fish and crayfish assemblages in simulated intermittent streams. Special session on Advancing the science and management of temporary aquatic habitats, Joint Aquatic Sciences Meeting, Portland, Oregon.	May 2014	We compared growth and survival of three species of Ozark fish and one species of crayfish among two drying disturbances (pulse and press) and a control in stream mesocosms with intermittent drying riffle/pool complexes where riffles dried completely but pools did not. Seasonal drying in intermittent streams can have strong, species-dependent effects on fish growth, periphyton, and inorganic mass.
Magoulick, D.D. and D.R. Leasure. 2016. Temporal variation in flow alteration of intermittent and perennial streams in the Interior Highlands. Plenary-Themed Special Session on Eco-hydrology of intermittent rivers and ephemeral streams in the face of a changing climate, Society for Freshwater Sciences Meeting, Sacramento, California.	May 2016	We examined flow alteration in seven natural flow regimes of the Interior Highlands, USA: Groundwater Stable, Groundwater, Groundwater Flashy, Perennial Runoff, Runoff Flashy, Intermittent Runoff and Intermittent Flashy. Altered hydrology is likely to affect ecosystem structure and function of intermittent streams and may influence the vital role these streams play in material transport and biological connectivity.
Magoulick, D.D. and D.R. Leasure. 2016. Flow alteration of intermittent and perennial streams in the Interior Highlands. Arkansas Wildlife Action Plan Meeting, Mount Magazine, Arkansas.	September 2016	We examined flow alteration in seven natural flow regimes of the Interior Highlands, USA: Groundwater Stable, Groundwater, Groundwater Flashy, Perennial Runoff, Runoff Flashy, Intermittent Runoff and Intermittent Flashy. Altered hydrology is likely to affect ecosystem structure and function of intermittent streams and may influence the vital role these streams play in material transport and biological connectivity.
Magoulick, D.D. and C.M. Bare. 2008. Using otolith microchemistry to describe the movements of smallmouth bass in a riverine environment. Symposium on Uses of Otolith Chemistry for Midwest Fisheries Management, Midwest Fish and Wildlife Conference, Columbus, Ohio.	December 2008
Magoulick, D.D. and C.A. Flinders. Do intermittent streams function as refugia for crayfish? North American Benthological Society, Pittsburgh, Pennsylvania.	May 2002
Magoulick, D.D. and A.N. Yarra. 2017. Effect of stream permanence on predation risk of lotic crayfish by riparian and aquatic predators. Symposium on Challenges, insights and opportunities in crayfish conservation and ecology, Society for Freshwater Science, Raleigh, North Carolina.	June 2017	Our objectives were to 1) determine the influence of stream permanence and season on crayfish predation and 2) assess the role of stream permanence and crayfish density on the presence of predators, while accounting for imperfect detection. The relative frequency and percent volume of fish prey showed a significant season by stream permanence interaction, which is the first instance of this observation.
Magoulick, D.D. and A.N. Dick. 2003. The role of pools as refugia for fishes during stream drying: importance of fish movement among habitats. North American Benthological Society, Athens, Georgia. May 2003.	May 2003
Magoulick, D.D. February 2001. Stream drying and fish assemblages in the Ozark Mountains: Spatial-temporal variation and source-sink dynamics. International Symposium on the Role of Drought in Aquatic Systems. Albury, Australia.	February 2001
Magoulick, D.D. August, 2000. Spatial and temporal patterns of fish assemblage structure: multivariate versus univariate analysis. American Fisheries Society meeting. St. Louis, Missouri.	August 2000
Magoulick, D.D. Assessment of electrofishing removal sampling in small streams. Southern Division American Fisheries Society, Little Rock, AR.	February 2002
Magoulick, D.D. 2022. Drought and climate change in aquatic systems: Population and community dynamics. Seminar to Department of Fisheries and Wildlife, Michigan State University.	November 2022	Drought is a natural disturbance of aquatic and terrestrial ecosystems in many regions worldwide and can be a major factor in structuring aquatic communities. My research examines how Individuals through ecosystems can be impacted by drought disturbance, with a focus on population and community dynamics.
Magoulick, D.D. 2015. Classification of natural flow regimes and flow-ecology relationships in the Ozark-Ouachita Interior Highlands region. Hydrological Alteration Workgroup meeting, Little Rock, Arkansas.	October 2015	We developed ecological flow-response relationships in the Ozark Highlands based on a hydrologic classification of streams into natural flow regimes. This study can serve as the basis for more informed conservation of freshwater biota and ecosystems in the Ozark Highlands as well as providing methodologies for use in other regions.
Magoulick, D.D. 2014. Environmental flows: What, why and how? Special Session on Environmental Flows: What, Why and How?, Arkansas Water Resources Conference, Fayetteville, Arkansas.	July 2014	Environmental flows is a major issue of importance globally and this talk summarizes the main issues.
Magoulick, D.D. 2012. Impacts of drying and crayfish invasion on stream ecosystem structure and function. TEMPRIV: Ecohydrology and ecological quality in temporary rivers, University of Évora, Portugal.	September 2012
Magoulick, D.D. 2012. Classification of Arkansas flow regimes. Ozark Summit, Springfield, Missouri.	June 2012
Magoulick, D.D. 2011. Impacts of drying and crayfish invasion on stream ecosystem structure and function. Special session on When rivers run dry: temporary streams as coupled aquatic-terrestrial ecosystems, Symposium for European Freshwater Sciences, Girona, Spain.	July 2011
Magoulick, D.D. 2011. Fish Harvesting and Management: Approaches and Implications for Sustainable Harvests Using Ecological Theory and Application. Special Session on Fish Ecology: Sustainability at the Fulbright Colloquium: Integral Approaches to Knowledge, University of Arkansas, Fayetteville, Arkansas.	March 2011
M. Evans-White, M.A., B.L. Annaratone, C. Larson, S. Rezaei, Z. Tipton, C. Prater, A. Dowling, D.D. Magoulick. 2024. Addressing data gapa to guide the development of conservation actions for Arkansas capniid stoneflies. Society for Freshwater Sciences, Philadelphia, Pennsylvania.	June 2024	We address data gaps to guide the development of conservation actions for Arkansas capniid stoneflies.
Lynch, D.T., D.R. Leasure and D.D. Magoulick. 2016. The influence of drought on flow-ecology relationships in Ozark Highland streams. Symposium on Ecological Flow Science and Policy: Protecting Stream Systems Today; Preparing for Tomorrow, American Fisheries Society, Kansas City, Missouri.	August 2016	We examined flow-ecology relationships in the Ozark Highlands over two years with contrasting environmental conditions, a drought year (2012) and a flood year (2013). Ecological responses that we observed differed significantly between drought and flood years, and this highlights the importance of understanding temporal variation in flow-ecology relationships for resource planning.
Lynch, D.T., D.R. Leasure and D.D. Magoulick. 2016. The influence of drought on flow-ecology relationships in Ozark Highland streams. Plenary-Themed Special Session on Climate and drought effects on mountain stream ecosystems, Society for Freshwater Sciences Meeting, Sacramento, California.	May 2016	We examined flow-ecology relationships in the Ozark Highlands over two years with contrasting environmental conditions, a drought year (2012) and a flood year (2013). Ecological responses that we observed differed significantly between drought and flood years, and this highlights the importance of understanding temporal variation in flow-ecology relationships for resource planning.
Lynch, D.T. and D.D. Magoulick. 2015. Temporal variation in flow-ecology relationships in the Ozark Highlands. American Society of Ichthyologists and Herpetologists, Reno, Nevada.	July 2015	Presentation at a national meeting on the results of the environmental flows project.
Lynch, D.T. and D.D. Magoulick. 2015. Flow-ecology relationships in the Ozark Highlands. Arkansas American Fisheries Society, Benton, Arkansas.	February 2015	Flow-ecology relationships in the Ozark Highlands.
Lynch, D.T. and D.D. Magoulick. 2014. Flow-ecology relationships in the Ozark Highlands. Special Session on Environmental Flows: What, Why and How?, Arkansas Water Resources Conference, Fayetteville, Arkansas.	July 2014	We used environmental flow relationships to understand potential impacts of water withdrawal and climate change. This information will also help inform water management plans.
Lynch, D.T. and D.D. Magoulick. 2014. Flow-ecology relationships in the Ozark Highlands. American Fisheries Society, Quebec City, Quebec, Canada.	August 2014	We developed ecological flow-response relationships in the Ozark Highlands based on a hydrologic classification of streams into natural flow regimes. This study can serve as the basis for more informed conservation of freshwater biota and ecosystems in the Ozark Highlands as well as providing methodologies for use in other regions.
Lynch, D.T. and D.D. Magoulick. 2014. Environmental flows in the Ozark Highlands: Contrasting hydrology-biology linkages between a drought year and a flood year. Arkansas Wildlife Action Plan Conference, Mount Magazine, Arkansas.	September 2014	We used environmental flow relationships to understand potential impacts of water withdrawal and climate change. This information will also help inform water management plans.
Ludlam, J.P. and D.D. Magoulick. 2008. Effects of crayfish and grazing fish on benthic communities during stream drying: Spatial and temporal variation. Special session on Patterns in Stream Ecosystem Functioning Across Bioclimatic Regions, North American Benthological Society, Salt Lake City, Utah.	May 2008
Ludlam, J.P. and D.D. Magoulick. 2007. Spatial and temporal variation in the effects of grazing fish and crayfish on benthic communities during stream drying. Special session on Ecology and conservation of substrate-oriented fishes, North American Benthological Society, Columbia, South Carolina.	June 2007
Ludlam, J.P, D.D. Magoulick, E.R. Larson, and K.H. Laycock. 2008. Disturbance and predation mediate trophic interactions in an aquatic food web. Ecological Society of America, Milwaukee, Wisconsin.	August 2008
Loncarich, F. L., and D. G. Krementz. 2003. Impacts of burning and grazing on greater prairie-chicken movements in the Flint Hills. 64th Midwest Fish and Wildlife Conference. Kansas City, Missouri.	December 2003
Loncarich, F. L., and D. G. Krementz. 2003. Breeding season survival of greater prairie-chickens in the Flint Hills. 25th Prairie Grouse Techinal Council. Siren, Wisconsin.	October 2003
Lehnen, S. E., and D. G. Krementz. 2004. Turnover rates of fall-migrating pectoral sandpipers through the lower Mississippi alluvial valley. The Wildlife Society Meeting. Calgary, Alberta.	September 2004
Lehnen, S. E., and D. G. Krementz. 2004. Stopover Duration Estimates For Least Sandpipers at Three Sites in the Lower Mississippi Alluvial Valley During Fall Migration. Cooper Ornithological Society Meeting. La Crosse, WI.	May 2004
Lehnen, S. E. and D. G. Krementz. 2012. A comparison of shorebird habitat use during fall migration in the Lower Mississippi Alluvial Valley. Southeastern Association of Fish & Wildlife Agencies Meeting. Hot Springs, AR.	October 2012	We surveyed shorebirds across the lower Mississippi Alluvial Valley and estimated abundances by species during the fall period. We determined that aquaculture ponds are a very important habitat used by fall migrating shorebirds.
Leasure, D.R. and D.D. Magoulick. 2014. A foundation for Arkansas E-flows: Hydrologic classification and flow alteration modeling. Special Session on Environmental Flows: What, Why and How?, Arkansas Water Resources Conference, Fayetteville, Arkansas.	July 2014	Determining flow regimes and flow alteration are two important components of assessing flow-ecology relationships.
Leasure, D.R. and D.D. Magoulick. 2014. A foundation for Arkansas E-flows: Hydrologic classification and flow alteration modeling. Arkansas Wildlife Action Plan Conference, Mount Magazine, Arkansas.	September 2014	Determining flow regimes and flow alteration are two important components of assessing flow-ecology relationships.
Lassiter, E.R., J.H. Sperry, and B.A. DeGregorio. 2019. Why did the turtle cross the wetland? Poster Presentation - Spotted, Blanding's and Wood Turtle Symposium.	November 2019	This is a range-wide analysis of spotted turtle overland movements - an important behavioral component that often brings an imperiled reptile species into contact with people or vehicles.
Larson, E.R., R.J. Distefano, D.D. Magoulick and J. Westhoff. 2007. Efficiency of quadrat sampling for riffle-dwelling crayfish. Southern Division American Fisheries Society, Memphis, Tennessee.	February 2007
Larson, E.R., D.D. Magoulick, C. Turner and K.H. Laycock. 2008. Disturbance and species displacement: Differential tolerance to stream drying and desiccation between native and invasive crayfishes. North American Benthological Society, Salt Lake City, Utah.	May 2008
Larson, E.R. and D.D. Magoulick. 2007. Competition among juveniles as a potential mechanism for crayfish species displacement in an Ozark river drainage. North American Benthological Society, Columbia, South Carolina.	June 2007
Larson, C.A., B.L. Annaratone, A. Dowling, D.D. Magoulick, C. Prater, Z. Tipton, M. Evans-White. 2022. Sampling Method Influences Detection Probability of Two Common and One Critically Threatened Allocapnia Species. Joint Aquatic Sciences Meeting, Grand Rapids, Michigan.	May 2022	We sought to compare detection probabilities of two common (<i>A. rickeri</i> and <i>A. mohri</i>) and one SGCN (<i>A. jeanae</i>) species of <i>Allocapnia</i> at nine sites in northwestern Arkansas (NWA) using two common methods: timed adult collection and timed nymph collection followed by rearing nymphs to adults in the lab. Our results suggest that sampling for adults in the field may provide better occupancy estimates than larval collections, even for rare winter stoneflies, as long as all
Larson, C., B. Annaratone, A. Dowling, D. Magoulick, C. Prater and M. Evans-White. 2021. A comparison of Allocapnia species detectability between two collection methods. Society for Freshwater Science, virtual meeting.	May 2021	We compared Allocapnia species detectability between two collection methods.
LaBrie L, Roberts CP. 2025. Enhancing proactive aquatic nuisance species management by developing a standardized risk screening workflow. Midwest Fish and Wildlife Conference. St. Louis, MO, USA.	January 2025	Here, we present results from an invasive fish species horizon scan that incorporates future climatic conditions. Our results show that future climatic conditions may increase the likelihood of invasive fish establishment in the USA but that not all species because high risk.
L.E. McTigue and B.A. DeGregorio. Effects of landcover on mesocarnivore density along an urban to rural gradient. Arkansas chapter of the wildlife society annual conference.	March 2023	As the human footprint expands, wildlife communities are altered. Here, we use game cameras to estimate the density of 5 mesocarnivore species and explore how density changes with human development.
Kusmik, A., D.T. Lynch and D.D. Magoulick. 2012. Influence of geomorphology and land use on fish community structure in Ozark Highland streams. Arkansas Water Resources Center conference, Fayetteville, Arkansas.	July 2012
Krementz, D.G., L.Scott, M. J. Carroll. 2013. Secretive Marsh Bird Management on Public Wetlands along the Arkansas River in Arkansas. Society of Wetland Scientists. Duluth, MN	June 2013	We surveyed marsh birds on public lands along the Arkansas River in Arkansas to investigate habitat and management relationships there. We learned that water drawdown date was an important factor in explaining marsh bird use of wetlands there.
Krementz, D.G. 2007. Survival of sora during fall migration in Missouri. American Ornithologists? Union Mtg.	August 2007
Krementz, D. G., and J. D. Luscier. 2008. Woodpecker densities and habitat use in the Big Woods of Arkansas. Ivory-billed Woodpecker Science Symposium.	June 2008
Krementz, D. G., and G. R. Huxel. 2006. Population dynamics of American woodcock in the Central Region. Tenth American Woodcock Symposium.	October 2006
Krementz, D. G., and E. E. Gbur, Jr. 2006. American woodcock wingbee reliability. Tenth American Woodcock Symposium.	October 2006
Krementz, D. G., M. J. Budd, A. J. Darrah, and J. R. Bolenbaugh. 2008. A synthesis of research on migratory king rails in the Mississippi Flyway. The Waterbird Society Mtg.	November 2008
Krementz, D. G., L. A. Scott, and J. M. Carroll. 2012. Secretive marsh bird management on public lands along the western Arkansas River. Arkansas State Chapter of the Wildlife Society. Fayetteville, AR.	September 2012
Krementz, D. G., K. Asante, and L. W. Naylor. 2013. Autumn Migration of Mississippi Flyway Mallards as Determined by Satellite Telemetry. Ecology and Conservation of North American Waterfowl Meeting. Jackson, MS	January 2013	Autumn migrating mallards were tracked from the Prairie Potholes region until 15 December. We documented migration timing, routes and final destinations.
Krementz, D. G., K. Asante, and L. W. Naylor. 2010. Fall migration ecology of satellite-marked mallards. Mississippi Flyway Technical Section Meeting - Migration Committee. Mobile, AL	July 2010
Krementz, D. G., K. Asante, L.W. Naylor. 2012. Geospatial analyses of telemetry data for mallard (Anas playthyrynchos) migration along the Mississippi Flyway. Association of American Geographers Mtg.	March 2012
Krementz, D. G., K. Asante, L. W. Naylor. 2009. Satellite Tracking Mallards from Arkansas during Spring and Fall Migration. North American Duck Symposium. Toronto, ON	August 2009
Krementz, D. G., J. R. Bolenbaugh, T. Cooper, R. S. Brady, and K. L. Willard. 2012. Population status of the king rail in the Midwestern United States. 73rd Midwestern Fish & Wildlife Conference, Wichita, KS	December 2012	We surveyed for king rails across the Midwestern United States in 2008 & 2009 and found them to be quite rare.
Krementz, D. G., J. E. Hines, and D. R. Luukkonen. Survival and recovery rates of Michigan-banded American Woodcock. The Wildlife Society 9th Annual Conference. Bismarck, ND.	September 2002
Krementz, D. G. 2003. Dispersal in birds: How does it fit into the picture? Science and Technology Seminar Series. Northeastern Oklahoma State University.	March 2003
Koenigbauer, S., C.R. Middaugh and D.D. Magoulick. 2016. Predation of crayfish before and during drought. Arkansas Water Resources Conference, Fayetteville, Arkansas.	July 2016	The goal of this study is to examine changes in crayfish predation in pools, runs and riffles. Climate change is expected to cause more frequent and severe droughts in the Ozark region, leading to magnified stream drying effects in runoff streams.
Kessinger, B., C.R. Middaugh and D.D. Magoulick. 2015. Projected effects of climate change on growth rate potential of smallmouth bass. Arkansas Water Resources Center conference, Fayetteville, Arkansas.	June 2015	We examined projected effects of climate change on growth rate potential of smallmouth bass and how the importance of flow regime.
Johansson, E.P. and B.A. DeGregorio. Suburban Wildlife Management in Northwest Arkansas. 2022. The Wildlife Society Annual Conference.	November 2022	Suburban yards are covering more and more of the planet with this manicured landscape being one of the dominant land covers in many areas of the country. Each yard can be viewed as an independently managed greenspace which influences the wildlife community that uses that yard. Here, we evaluate how yard features influence the wildlife that use the yards across northwest Arkansas by deploying cameras in more than 100 suburban yards.
Johansson, E.P. and B.A. DeGregorio. 2023. The Effects of Landscape and Yard Features on Mammals in Residential Yards. Arkansas Chapter of the Wildlife Society Annual Conference	March 2023	Residential lawns and yards cover approximately 11% of the United States and some wildlife are able to persist in these highly altered landscapes. Here, we studied how the features in and around yards influenced the wildlife community to inform how homeowners could encourage or discourage the persistence of wildlife on their properties.
Jessica M Schmit, Caleb P Roberts, Auriel MV Fournier, Karen L Rowe. 2023. King Rail Migration Ecology in Arkansas. Wilson Ornithological Society 2023 Meeting. Allentown, PA.	June 2023	King Rails (Rallus elegans) are a vulnerable species that migrate from the Gulf of Mexico to various emergent wetlands between the Gulf and the Great Lakes. Understanding their migration ecology is critical for conserving these sites and securing populations of this imperiled species.
James, R. A., and D. G. Krementz. 2005. Dispersal Patterns of Giant Canada Geese in Central United States. Proceedings of the Southeastern Association of Fish & Wildlife Agencies	October 2005
James, R. A., and D. G. Krementz. 2003. Dispersal and survival rates of resident Canada geese in the central Mississippi Flyway. Mississippi Flyway Technical Section Meeting.	February 2003
Jacobson, R.B., C.F. Rabeni, J.C. Petersen, D.D. Magoulick, K.E. Doisy, and A.V. Rettig. 2003. Land Use and Stream Ecosystems in the Ozark Highlands, Missouri and Arkansas - Extracting a Weak Signal from Background Noise. American Geological Union, San Francisco, CA.	December 2003
Ivory II A, Donovan VM, Wonkka CL, Roberts CP. Cogongrass (Imperata cylindrica) impacts on ecosystem services in Southeastern US forests. University of Florida Graduate Student Symposium 2024. Gainesville, FL.	March 2024	Cogongrass (Imperata cylindrica) is an invasive grass that is known to reduce multiple ecosystem services. Here, we discuss study design for a USDA NIFA AFRI project that will estimate cogongrass impacts on biodiversity and fire risk.
Huxel, G. and D.D. Magoulick. 2006. Trophic structure in pools subject to drying. Ecological Society of America, Memphis, Tennessee.	August 2006
Hodges, S.W., M.P. Dekar and D.D. Magoulick. 2002. Factors affecting movement of fishes in headwater Ozark streams. Arkansas Game and Fish Commission Research Symposium, Little Rock, Arkansas. October 2002.	October 2002
Herbert, J. A., A. Chakraborty, L. Naylor, and D. G. Krementz. 2016. Abundance and distribution of non-breeding mallards in the lower Mississippi Alluvial Valley. North American Ornithological Congress. Washington, D.C.	August 2016	Variables affecting within-winter abundance and distributions of mallards have not been studied at the landscape level. We found that surface water location in association with certain agricultural crops were explaining mallard abundance and distributions during the winter at the landscape level.
H. Tyler Pittmana and David G. Krementzb. 2015. Effects of Frequent Landscape Disturbance on Breeding Dispersal and Nest-site Searching of Eastern Wild Turkey in the Ozark Highlands of Arkansas. Midwest Fish & Wildlife Conference. Indianapolis, IN.	February 2015	Long-term fire suppression has resulted in loss of woodland and savannas across the Central Hardwoods. We investigated whether landscape-level prescribed burning over ten years in degraded woodlands and savannas has altered breeding dispersal and nest site selection in eastern wild turkeys.
H. Tyler Pittman and David G. Krementz. 2015. Vegetative Response to Landscape Scale Woodland and Savanna Restoration at Multiple Spatial and Temporal Scales in the Ozark Highlands of Arkansas. Midwest Fish & Wildlife Conference. Indianapolis, IN.	February 2015	Woodlands and savannas in North America are few in number because of long-term fire suppression. We examined the effects of landscape-level prescribed burning on vegetation in the Arkansas Ozarks to assess whether restoration efforts have resulted in desired vegetation changes.
Green, A. W., and D. G. Krementz. 2006. Changes in winter distributions of mallards in the Mississippi and Central flyways during recent times. The Wildlife Society Mtg	September 2006
Green, A. W., and D. G. Krementz. 2006. Changes in harvest and winter distributions of mallards in recent times. Fourth North American Duck Symposium.	August 2006
Gott, C., K. Smith and D.D. Magoulick. 2018. Examining Body Condition of Ringed Crayfish Faxonius neglectus Across Streams. Arkansas Water Resources Conference, Fayetteville, Arkansas.	July 2018	Natural flow regimes can be an overarching factor affecting stream organisms. We found flow regime had little effect on body condition of Ringed Crayfish.
Fox, J.T. and D.D. Magoulick. 2020. Exploring the Importance of Hydrologic and Environmental Gradients and Thresholds on Patterns of Fish Biodiversity Composition. Symposium on Linking Physical and Biological Processes in Habitat Management Among Aquatic Systems, Southern Division American Fisheries Society, Little Rock, Arkansas.	February 2020	We used a gradient forest approach to quantify multi-species threshold responses along environmental and hydrologic gradients in streams in the Ozark and Ouachita Highlands and Gulf Coastal Plains and identified numerous nonlinear threshold responses where significant changes in community composition occur. The results of our analysis provide detailed information on important environmental and disturbance thresholds driving patterns in fish assemblages in intermittent and perennial streams to b
Fox, J.T. and D.D. Magoulick. 2020. Exploring the Importance of Hydrologic and Environmental Gradients and Thresholds on Patterns of Fish Biodiversity Composition. Arkansas Wildlife Action Plan Symposium, Virtual Conference.	September 2020	We used landscape-scale, georeferenced species occurrence datasets and hydrologic and watershed-scale disturbance datasets to examine patterns of fish biodiversity, turnover and community composition in intermittent and perennial streams. The results of our analysis provide detailed information on important environmental and disturbance thresholds driving patterns in fish assemblages in intermittent and perennial streams to better manage tradeoffs between environmental flows and consumptive dem
Fournier, Auriel M.V., David G. Krementz, Doreen C. Mengel, Andy H. Raedeke. 2013 Phenology, Habitat Use and Co-Occurrence of Fall Migrating Yellow Rails on Intensively-Managed Wetland Complexes in Missouri - Research In Progress. Yellow Rail Virtual Scientific Symposium	July 2013	Yellow rails are a rare species that are little studied, especially during migration. We surveyed for yellow rails during fall migration in Missouri and documented phenology, habitat use and co-occurrence with other rail species.
Fournier, A. M. V., and D. G. Krementz. 2013. Preliminary Results of Effects of Wetland Management Strategies on Habitat Use of Fall Migrating Rails on Intensively-Managed Wetland Complexes in Missouri. The Wildlife Society Meeting, Milwaukee, WI.	October 2013	Fall migrating rails have limited habitats to use because of the paucity of wetlands with water on the landscape in the mid-latitudes. We investigated habitat use by fall migrating rails to better direct fall wetland management.
Fournier, A. M. V., K. L. Drake, D. C. Tozer, and D. G. Krementz. 2016. Migratory connectivity of sora, Virginia and yellow rails. North American Ornithological Conference. Washington, D.C.	August 2016	Little is known about migratory connectivity of rails across North America. We used stable isotopes to investigate such connectivity in three rails in the hopes of eventually being able to better manage those species.
Fournier, A. M. V., D. G. Krementz, D. C. Mengel, and A. H. Raedeke. 2014. Wetland management and sora habitat during fall migration. The Wildlife Society Meeting, Pittsburgh, PA.	October 2014	Management for marsh birds on public lands has not been actively pursued in part because little is known about how to do so. We are investigating methods for better managing for fall migrating marsh birds in the Mississippi Flyway.
Fournier, A. M. V., D. C. Mengel, D. G. Krementz. 2015. Timing of autumn migration in the Mississippi Flyway by rails. Association of Field Ornithologists, Wolfville, Nova Scotia.	July 2015	Phenology of autumn migrating rails is poorly understood. We initiated a project to document the timing of autumn migration of especially sora rails through Missouri.
Fontanella, L., K. Findley and D.D. Magoulick. 2023. Using distance sampling to estimate density and detectability of the imperiled darter, Nothonotus juliae, in the Kings River, Arkansas. Arkansas Water Resources Conference, Fayetteville, Arkansas.	July 2023	The Yoke Darter (Nothonotus juliae), is a small, freshwater fish endemic to the White River system of northern Arkansas and southern Missouri that is in decline and imperiled. There are no current density estimates of Yoke Darters; therefore, we used two different approaches to create density estimates for this imperiled species.
Flow-ecology relationships in the Ozark Highlands. Meeting of the American Fisheries Society, Arkansas Chapter. Benton, Arkansas.	February 2015	Presentation at the state AFS meeting on the results of the environmental flows project.
Flinders, J.M. and D.D. Magoulick. 2006. Foraging patterns of brown trout and rainbow trout in an Arkansas tailwater: a stable isotope and gut content analysis approach. Symposium on Trout Fisheries in Regulated Rivers, Southern Division American Fisheries Society, San Antonio, Texas.	February 2006
Flinders, J.M. and D.D. Magoulick. 2005. Diet and bioenergetics of rainbow and brown trout in Arkansas tailwaters. White River Fisheries Partnership, Theodosia, Missouri.	November 2005
Flinders, J.M. and D.D. Magoulick. 2008. Bioenergetic evaluation of food supply and consumption demand by brown and rainbow trout in catch-and-release areas of Arkansas tailwaters. American Fisheries Society, Ottawa, Ontario, Canada.	August 2008
Flinders, J.M. and D.D. Magoulick. 2007. Trophic interactions and foraging patterns of rainbow and brown trout in Ozark tailwaters: A stable isotope and gut content analysis approach. American Fisheries Society, San Francisco, California.	September 2007
Flinders, C.A. and D.D. Magoulick. Scale-dependent community relationships: determining the relative importance of spatial scale in a lotic crayfish community. North American Benthological Society, Pittsburgh, Pennsylvania.	May 2002
Flinders, C.A. and D.D. Magoulick. August 2001. Community structure of lotic crayfish at multiple spatial scales. Ecological Society of America. Madison, Wisconsin.	August 2001
Flinders, C.A. and D.D. Magoulick. 2003. The best place to eat: food availability vs. predation risk in lotic crayfish habitat selection. North American Benthological Society, Athens, Georgia. May 2003.	May 2003
Findley, K. and D.D. Magoulick. 2023. Evaluating the Effects of Drought on Yellowcheek (Nothonotus moorei) and Yoke Darter (Nothonotus juliae) survival, growth, and behavior. Joint Meeting of Ichthyologists and Herpetologists, Norfolk, Virginia.	July 2023	This study uses stream mesocosms to simulate press drought in a laboratory experiment to evaluate how the endangered Yellowcheek Darter and imperiled Yoke darter respond to drought and drying. This study provides valuable information regarding how endangered darters respond to drought. Our research facilitates the conservation of native fishes experiencing pressure from drought.
Findley, K. and D.D. Magoulick. 2022. Drought Effects on Growth, Survival, and Behavior in Rainbow Darters (Etheostoma caeruleum). American Fisheries Society, Spokane, Washington.	August 2022	Aquatic refuge-seeking behavior is often observed when species move into deeper pools, migrate long distances to permanently wet habitats, or burrow into the hyporheic zone in attempt to persevere during drought conditions. This study provides valuable information regarding how Rainbow Darters respond to drought, as well as preliminary information for other benthic fishes.
Ferrara M, Willson JD, Royal E, Roberts CP. 2025. Solar Powered Conservation: Does Native Vegetation in Solar Arrays Affect Avian Species Richness? IALE-North America Annual Conference. Raleigh, NC.	April 2025	Solar energy harvesting, through solar arrays, is an increasingly prevalent land use, but the responses of avian communities is unclear. Here, we assess bird community responses to solar arrays managed in different ways.
Ferrara M, Willson JD, Roberts CP. 2024. Solar Powered Conservation: Do Solar Arrays Create Habitat for Avian Grassland Species. Arkansas Audubon Society Convention. Little Rock, AR.	October 2024	Solar power is increasing, but the effects of solar arrays on bird communities remains unclear. Here, we present initial results on bird community occupancy responses to solar arrays managed in multiple ways.
Environmental Flows in the Ozark Highlands: Contrasting Hydrology-Biology Linkages Between a Drought Year and a Flood Year. Arkansas Wildlife Action Plan Symposium. Mount Magazine, Arkansas.	September 2014	Presentation on environmental flows project at a state meeting to assign conservation priorities for the state of Arkansas.
Effects of Wetland Management Strategies on Habitat Use of Fall Migrating Rails in Intensively-Managed Wetland Complexes in Missouri. Auriel M.V. Fournier1, Doreen C. Mengel2, Andrew H. Raedeke2, David G. Krementz3, 1Arkansas Cooperative Fish and Wildlife Research Unit - University of Arkansas, Fayetteville, AR, 2Missouri Department of Conservation, Columbia, MO, 3U.S. Geological Survey - Arkansas Cooperative Fish and Wildlife Research Unit - University of Arkansas, Fayetteville, AR Abstract: Actively managing inland wetlands for waterbirds usually involves some sort of disturbance. Most wetland managers use a combination of water level manipulation and/or soil disturbance. Here we will focus on water level manipulations and how that disturbance type influences wetland use by migrating rails through the central portion of the Mississippi Flyway. In Missouri, water level manipulation falls into two basic approaches - early to mid-summer drawdown or late summer flooding. We surveyed migrating sora (Porzana carolina) across four regions in Missouri during four sampling periods in the autumns of 2012 and 2013. We sampled rails using line transects from ATVs at night and analyzed the data using program Distance. We analyzed each survey period separately. We found that habitat type (moist soil management, perennial emergent), plant/water interspersion, water depth, draw down date, and flooding date explained Sora density in different periods during the autumn. Sora density was positively influenced by flooding date earlier in the autumn. We found Sora density increased with percent interspersion and water depth across all regions early in the autumn. We found sora densities were higher in wetlands managed for moist soil then in wetlands managed for perennial emergent. We will continue surveys in 2014 and 2015 with randomized management experimentation to further examine the impact of water level disturbance on sora density.	October 2014	Recent declines in marsh bird populations has prompted managers to ask for better information on wetland management. We investigated how water level manipulations relate to marsh bird abundance during fall migration in Missouri.
Ecological-Flow Response Relationships in the Ozark Highlands. 2013 National Meeting of the American Fisheries Society, Little Rock, AR.	September 2013	I presented data from my dissertation on ecological flow, hydrological response relationships in the Ozark Highlands.
Ecological Flow-Response Relationships in the Ozark Highlands. Joint Aquatic Sciences Meeting (Society for Freshwater Science), Portland, Oregon.	May 2014	Presentation at national conference on environmental flows work in the Ozark Highlands.
E. Johansson and B.A. DeGregorio. Landscape and Yard Feature Effects on Mammalian Wildlife in Residential Yards Across an Urban to Rural Gradient. Arkansas Chapter of the Wildlife Society Annual Conference.	March 2023	Our suburban yards cover millions of acres of land across the United States. Despite converting natural habitat to human residential use, these yards provide food, water, and shelter resources to adaptable wildlife. Here, we explore which features predict yard usage by different wildlife.
Douglas, M. R., H.T. Pittman, W. J. B. Anthonysamy, M. A. Davis, D. G. Krementz, R. E. Vernocy Jr., W. Louis, and M. E. Douglas. 2012. Molecular ecology of eastern wild turkey in the interior Highlands of Arkansas and surrounding areas. 73rd Midwest Fish and Wildlife Conference. Wichita, KS.	December 2012	We found that turkeys in Arkansas exhibited little genetic differentiation but were completely different genetically from turkeys in Illinois. Our methods do show promise for estimating the number of turkeys based on genetic mark/recapture methods.
Doster, R.H. and D.G. Krementz. 2007. Winter habitat affinities of two grassland bird species in the lower Mississippi River Alluvial Valley: Sedge Wren and Le Conte?s Sparrow. American Ornithologists? Union Mtg.	August 2007
Doster, R. H., and D. G. Krementz. 2006. Habitat and landscape associations of wintering grassland and shrubland bird communities in the lower Mississippi River alluvial valley. Ecological Society of America Mtg.	August 2006
Doster, R. H., D. G. Krementz, and D. A. James. 2002. Population structure and habitat use of wintering grassland birds in reforestation sites throughout the Lower Mississippi River Alluvial Valley. Third Arkansas Game & Fish Commission Research Symposium.	October 2002
Donahue, E., A.J. Worm, B.A. DeGregorio, L. Neuman-Lee, and T. Boves. 2022. High Prevalence of Neonicotinoid Residues in a Declining Predatory Songbird, the Loggerhead Shrike, in Arkansas, USA. Association of Field Ornithologists.	October 2022	Loggerhead shrike are declining rapidly across their range and the causes of this decline are not yet agreed upon. It has been suggested that agricultural chemicals may be contributing to this decline and this study is the first to directly examine neonicotinoids accumulation in the species.
Does the Human Shield Hypothesis explains patterns of Virginia Opossum occupancy, abundance, and activity? 2022. John Veon, Ellery Lassiter, Emily Johansson, Michael Shaw, Leah McTigue, Andrhea Massey, Rylee Gibson, and Brett DeGregorio. Arkansas Chapter of the Wildlife Society Annual Conference.	March 2022	This is a continent-wide evaluation of distribution, abundance, and behavior of a common mesopredator as well as an evaluation of an important scientific hypothesis that is a framework for understanding wildlife adaptation to human development.
Dodd, A.K., D.R. Leasure, D.D. Magoulick and M.A. Evans-White. 2017. Stream metabolism in two dominant north Arkansas flow regimes. Symposium on Moving forward in flow ecology: identifying and testing key hypotheses, Society for Freshwater Science, Raleigh, North Carolina.	June 2017	The natural flow regime controls stream ecosystem processes and functions, but few efforts have examined stream metabolism explicitly within the context of flow regime. Our work reveals potential flow class-specific variation in function within a biome.
Dodd, A.K., D.R. Leasure, D.D. Magoulick and M.A. Evans-White. 2016. Characterizing two natural flow regimes of the Ozark Highlands and Boston Mountains, Arkansas, USA. Society for Freshwater Science, Sacramento, California.	May 2016	Natural flow regimes are considered overarching variables in determining stream ecosystem structure and function. We characterized two flow regimes as a preliminary step to examining flow effects on stream function.
Distribution and abundance of the endangered yellowcheek darter in the Little Red River drainage of Arkansas. Joint Meeting of Ichthyologists and Herpetologists, Albuquerque, New Mexico.	July 2013	We presented data on the abundance and distribution of a rare and declining endemic Arkansas fish species.
Distribution and Abundance of the Yellowcheek Darter (Etheostoma moorei) in the Little Red River Drainage of Arkansas. Ozark Summit 2012. Springfield, Missouri.	June 2012	Presentation at a regional meeting on a project involving the status and conservation of a recently listed federally endangered species.
Distribution and Abundance of the Yellowcheek Darter (Etheostoma moorei) in the Little Red River Drainage of Arkansas. Meeting of the American Fisheries Society, Arkansas Chapter, Conway, AR.	January 2013	We presented results of a report on the status, distribution, and abundance of a rare and declining Endangered Species endemic to Arkansas.
DiStefano,R.J., D.D. Magoulick, B.K. Wagner, J.W. Fetzner Jr., E.M. Imhoff and M.S. Nolen. 2012. Distribution, occupancy and detection of the imperiled Coldwater Crayfish in Ozark Streams of Missouri and Arkansas. Special session on Recent advances in crayfish biology, ecology, and conservation, Society for Freshwater Science, Louisville, Kentucky.	May 2012
DiStefano, R.J., D.D. Magoulick, E.M. Imhoff and E.R. Larson. 2007. Use of an intermittent ozark stream and hyporheic zone by two imperiled crayfishes. Special session on Crayfish Ecology, North American Benthological Society, Columbia, South Carolina.	June 2007
Dekar, M.P., D.D. Magoulick and G. R. Huxel. 2008. Spatial and temporal variation of intermittent stream food webs derived from stable isotopes. American Fisheries Society, Ottawa, Ontario, Canada.	August 2008
Dekar, M.P., D.D. Magoulick and G. Huxel. 2007. Spatial and temporal variation in stable carbon and nitrogen isotopes: implications for aquatic food web analyses. American Fisheries Society, San Francisco, California.	September 2007
Dekar, M.P. and D.D. Magoulick. 2004. Factors affecting fish assemblage structure and growth during seasonal stream drying. American Fisheries Society, Madison, Wisconsin.	August 2004
Deal, K., D.T. Lynch and D.D. Magoulick. 2012. Relationship between crayfish abundance and hydrologic factors in Ozark Highland Streams. Arkansas Water Resources Center conference, Fayetteville, Arkansas.	July 2012
DeGregorio, B.A. 2022. Working with state cooperators. South East Region Science Meeting. Online.	July 2022	Science centers and cooperative research units do no interact as much as they could. In an effort to change that I was invited to present about our unique relationship with state cooperators and to be a part of a roundtable discussion with scientists from science centers around the southeast region.
DeGregorio, B.A. 2022. Mesopredator co-existence with humans. Presentation to NSF REU Program Orientation.	June 2022	Presentation to diverse cohort of NSF undergraduate researchers that will be working with university of Arkansas faculty this summer.
Dawson A, Roberts CP. 2022. King Rail habitat selection in Southeast Arkansas. Arkansas Water Resources Center Annual Meeting 2022. Fayetteville, AR.	July 2022	King Rails (Ralllus elegans) are declining throughout North America, and determining their habitat selection patterns is critical for managing them. Here, we present results from a King Rail habitat selection study in a restored wetland in southeast Arkansas.
Darrah, A. J., and D. G. Krementz. 2008. Site occupancy and habitat use of three marsh bird species in the Illinois and Upper Mississippi River Valleys. The Waterbird Society Mtg.	November 2008
Darrah, A. J., and D. G. Krementz. 2008. Habitat use of breeding king rails in the Illinois and Upper Mississippi River Valleys. American Ornithologists? Union Mtg.	August 2008
D.T. Lynch and D.D. Magoulick. 2014. Ecological-flow response relationships in the Ozark Highlands. Special session on The science and management of environmental flows: recent developments and remaining challenges, Joint Aquatic Sciences Meeting, Portland, Oregon.	May 2014	We developed ecological flow-response relationships in the Ozark Highlands based on a hydrologic classification of streams into natural flow regimes. This study can serve as the basis for more informed conservation of freshwater biota and ecosystems in the Ozark Highlands as well as providing methodologies for use in other regions.
Cushing, A.W. and D.D. Magoulick. 2006. Effects of catch and release areas on movement and mortality of rainbow trout in Bull Shoals and Norfork tailwaters. Symposium on Trout Fisheries in Regulated Rivers, Southern Division American Fisheries Society, San Antonio, Texas.	February 2006
Cushing, A.W. and D.D. Magoulick. 2006. Effects of catch and release areas on movement and mortality of rainbow trout in Bull Shoals and Norfork tailwaters. Arkansas Chapter American Fisheries Society, DeGray Lake State Park, Arkansas.	February 2006
Cushing, A.W. and D.D. Magoulick. 2005. Survival and movement of rainbow trout in Arkansas tailwaters. White River Fisheries Partnership, Theodosia, Missouri.	November 2005
Cushing, A.W. and D.D. Magoulick. 2007. Movement of rainbow trout in the catch and release areas of Arkansas tailwaters. Southern Division American Fisheries Society, Memphis, Tennessee.	February 2007
Cushing, A.W. and D.D. Magoulick. 2007. Movement of rainbow trout in the catch and release areas of Arkansas tailwaters. Arkansas Chapter American Fisheries Society, Mt. View, Arkansas.	February 2007
Cushing, A.W. and D.D. Magoulick. 2007. Comparison of rainbow trout movements using radiotelemetry and otolith microchemistry in Arkansas tailwaters. American Fisheries Society, San Francisco, California.	September 2007
Coulter, S. C., D. G. Krementz, and L. A. Powell. 2004. Wood thrush movement patterns in managed bottomland hardwood forests of Louisiana. The Wildlife Society Meeting. Calgary, Alberta.	September 2004
Coulter, S. C., D. G. Krementz, L. A. Powell, and K. F. Ribbeck. 2005. Wood thrush density, home ranges and movements in relation to forest management in the Atchafalya Basin, Louisiana.	September 2005
Coulter, S. C., D. G. Krementz, L. A. Powell, and K. F. Ribbeck. 2005. Wood thrush density, home ranges and movements in relation to forest management in the Atchafalaya Basin, Louisiana. American Ornithologists? Union Mtg.	August 2005
Collier, B. A., and D. G. Krementz. 2005. Modelling white-tailed deer population responses to harvest regulation changes in Arkansas at multiple scales. The Wildlife Society Mtg.	October 2005
Collier, B. A., and D. G. Krementz. 2005. Modelling impacts of harvest management and population demographics using probabilistic networks. Southeast Deer Study Group.	March 2005
Collier, B. A., and D. G. Krementz. 2004. Opinions and preferenes of hunters on white-tailed deer management in Arkansas. The Wildlife Society Meeting. Calgary, Alberta.	September 2004
Collier, B. A., and D. G. Krementz. 2003. Opinions and preferences of Arkansas deer hunters towards statewide QDM. 26th Annual Meeting of Southeast Deer Study Group.	March 2003
Collier, B. A., and D. G. Krementz. 2002. White-tailed Deer management at hunt camps in Arkansas. The Wildlife Society 9th Annual Conference. Bismarck, ND.	September 2002
Collier, B. A., D. G. Krementz, and C. Gray. 2005. Do harvest sex ratios really help managers in making decisions? Southeast Deer Study Group	March 2005
Collier, B. A., D. G. Krementz and C. Gray. 2005. Do harvest sex ratios really help managers in making decisions? 28th Annual Meeting Southeast Deer Study Group.	February 2005
Collier, B. A. and D.G. Krementz. 2002. White-Tailed Deer Management Strategies of Registered Hunt Camps in Arkansas. Abstract in 25th Annual Meeting Southeast Deer Study Group, Mobile, Alabama.	September 2002
Christie, G.H., and B.A. DeGregorio. 2020. Changes in Northern Bobwhite occupancy and distribution across Arkansas. The Wildlife Society Annual Conference. Louisville	September 2020	This study looks at the habitat associations and occupancy patterns of an important game bird, northern bobwhite, over 20 years in Arkansas
Christie, G.H. and B.A. DeGregorio. 2002. Changes in Northern Bobwhite occupancy and distribution across Arkansas. North American Ornithological Conference, Puerto Rico.	August 2020	This research looks at the habitat occupancy patterns of an important gamebird, bobwhite quail, across Arkansas over 20 years and explores changes in these patterns.
Carroll, J., D. G. Krementz, J, R. Thackston, W. Burger, and B. Palmer. November 1999. Early successional game and nongame species. Management of migratory landbirds in the Southeast. Partners in Flight Southeastern Regional Meeting, Biloxi, MS.	November 1999
Carroll, J. M., and D. G. Krementz. 2011. Wilson's snipe winter survey development in the Mississippi Flyway. Webless Committee of the Mississippi Flyway Technical Section Meeting	July 2011
Carroll, J. M., and D. G. Krementz. 2009. Development of a winter survey for Wilson's snipe in the Mississippi Flyway. Arkansas State Chapter of the Wildlife Society	September 2009
Carroll, J. M. and D. G. Krementz. 2011. The development of a winter survey for Wilson's snipe in the Mississippi Flyway. Proceeding of the Southeastern Association of Fish and Wildlife Agencies.	October 2011
Caleb P. Roberts, Lauren L. Berry, Percival Marshall, Jessica Schmit, Michael Shaw, Kenneth Wilson. 2023. Using multi-species occupancy modeling and scenario planning to assess multi-scale conservation outcomes: avian responses to afforestation versus savanna restoration. Arkansas Chapter of The Wildlife Society. Morrilton, AR.	March 2023	We applied multi-species occupancy modeling within a scenario planning framework allows for comparing multi-scale tradeoffs between plausible futures: complete afforestation versus savanna restoration. Overall, for avian communities in afforested eastern North American systems, we show that increasing heterogeneity in tree cover provides community-level benefits and does little harm even to forest-dependent species of conservation concern.
Caleb P. Roberts, Dirac Twidwell,Brady W. Allred, Victoria M. Donovan, Dillon T. Fogarty, Matthew O. Jones, Jeremy Maestas, David Naugle, Andrew C. Olsen. 2021. New possibilities for large-scale tracking of management outcomes in rangelands. Society for Range Management Annual Conference [Virtual Meeting].	February 2021	We use new technologies and vegetation biomass datasets to communicate and assess management outcomes in three working lands landscapes that host threatened species. We show management outcomes are not homogeneous in time or space, and we highlight the importance of assessing management outcomes at multiple scales.
Caleb P. Roberts, Craig R. Allen, Brady Allred, David G. Angeler, Victoria M. Donovan, Brandon Edwards, David Naugle, Rheinhardt Scholtz, Jason Tack, Dirac Twidwell, Daniel R. Uden. 2022. What happens when biomes collapse, move, or contract? The Wildlife Society Conference. Spokane, WA, USA.	November 2022	Biomes are collapsing, moving, and contracting due to rapid global changes. Using the Great Plains as an example, we show these movements can be tracked, and we measure the consequences in terms of losses in grassland bird abundances.
Caleb P. Roberts, Craig R. Allen, Brady Allred, David G. Angeler, Victoria M. Donovan, Brandon Edwards, David E. Naugle, Rheinhardt Scholtz, Jason Tack, Dirac Twidwell, Daniel R. Uden. 2023. Biome collapse, boundary detection, and birds. International Association of Landscape Ecology-North America Annual Conference. Riverside, CA.	March 2023	Entire biomes are collapsing, moving, and contracting in response to global changes. We discuss how tracking boundaries between ecological states can inform biome-scale conservation strategies and provide early warnings of ecological change.
Cady, S.M., Twidwell, D., Roberts C.P., Uden, D.R., Fogarty, D.T., Morford, S., Scholtz, R., and Naugle, D.E. (2024) "Using Science and Technology to Drive Conservation Action that Addresses Great Plain Biome Collapse." AOS Annual Meeting, Oct 1-5. Estes Park, CO.	October 2024	The Great Plains is succumbing to biome-scale collapse due to woody plant encroachment and row-crop land conversion. We discuss how new technologies and analyses can help guide management to take action against collapse.
Budd, M. J., and D. G. Krementz. 2008. Status, distribution, and habitat selection of secretive marsh birds in the Delta of Arkansas. Arkansas Wildlife Action Plan Conference.	September 2008
Budd, M. J., and D. G. Krementz. 2007. Habitat selection by least bitterns in the Delta of Arkansas. American Ornithologists? Union Mtg.	August 2007
Bruckerhoff, L.A., D.R. Leasure and D.D. Magoulick. 2016. Spatial auto-correlation of fish traits across hydrologic regimes and implications for developing ecological-flow relationships. Joint Meeting of Ichthyologists and Herpetologists. New Orleans, Louisiana.	July 2016	We used mixed moving average spatial stream network (SSN) models to (1) determine the relationship between fish traits and hydrologic metrics within classified flow regimes at a management (state) level spatial scale, (2) determine how traits are spatially auto-correlated within a stream network, and (3) compare the degree of spatial autocorrelation between flow regimes. Spatial factors described more variability in the distribution of fish traits than hydrologic metrics within and between flow
Bruckerhoff, L.A., D.R. Leasure and D.D. Magoulick. 2016. Hydrologic regimes as potential drivers of morphologic divergence in fish. Symposium on Ecological Flow Science and Policy: Protecting Stream Systems Today; Preparing for Tomorrow, American Fisheries Society, Kansas City, Missouri.	August 2016	We used mixed moving average spatial stream network (SSN) models to (1) determine the relationship between fish traits and hydrologic metrics within classified flow regimes at a management (state) level spatial scale, (2) determine how traits are spatially auto-correlated within a stream network, and (3) compare the degree of spatial autocorrelation between flow regimes. Spatial factors described more variability in the distribution of fish traits than hydrologic metrics within and between flow
Bruckerhoff, L.A., D.D. Magoulick and D.R. Leasure. 2015. Trait composition of fish assemblages across hydrologic regimes. Symposium on Recent Advances in Establishing Fish-Habitat Relationships in Lotic Systems, American Fisheries Society, Portland, Oregon.	August 2015	Because hydrology controls many important habitat attributes, stream fish traits reflect hydrologic conditions. This study provides not only regional patterns in fish community structure across hydrologic regimes, but also identifies traits and hydrologic metrics that are important for predicting fish community responses to flow alteration.
Bruckerhoff, L.A. and D.D. Magoulick. 2015. Morphological variation in Campostoma anomalum across hydrologic regimes. Special Session on Biotic Response to Flow, Society for Freshwater Science, Milwaukee, Wisconsin.	May 2015	This study contributes to the understanding of how environmental factors drive natural selection, and may provide insight into the evolutionary consequences of disrupting natural hydrologic patterns, which are increasingly threatened by climate change and anthropogenic alterations.
Bruckerhoff, L.A. and D.D. Magoulick. 2015. Morphological variation in Campostoma anomalum across hydrologic regimes. Arkansas American Fisheries Society, Benton, Arkansas.	February 2015	Morphological variation in Campostoma anomalum across hydrologic regimes.
Bruckerhoff, L.A. and D.D. Magoulick. 2015. Morphological variation in Campostoma anomalum across hydrologic regimes. American Fisheries Society, Portland, Oregon.	August 2015	Because hydrology controls many attributes of the physical environment, organisms adapt and evolve in response to maintained hydrologic regimes and adaptations may be the result of phenotypic plasticity or genetic divergence, both of which play roles in speciation and evolution. This study contributes to the understanding of how environmental factors drive natural selection, and may provide insight into the evolutionary consequences of disrupting natural hydrologic patterns, which are increasi
Bollenbaugh, J.R., and D. G. Krementz. 2010. Distribution and habitat use of secretive marshbirds in the Upper Mississippi River/Great Lakes Joint Venture Region. The Wildlife Society	September 2010
Bolenbaugh, J. R., T. Cooper, R. S. Brady, K. L. Willard, and D. G. Krementz. 2012. Status and breeding season distribution of the migratory king rail population. The Wildlife Society 19th Annual Conference, Portland, OR.	October 2012	Extensive breeding season surveys for the migratory cohort of the king rail across the Midwestern United States revealed that they are rare. Additional conservation efforts should be considered to maintain current populations.
Berry LL, DeGregorio BA, Uden DR, Roberts CP. 2024. Grassland bird occupancy responses to two new spatial early warning signals of state transitions: testing spatial variance and spatial covariance. Arkansas Chapter of The Wildlife Society. Mount Magazine State Park, Arkansas.	March 2024	Grassland birds are the fastest-declining bird guild in North America. Here, we show results from an analysis testing the ability of a novel landscape metric--spatial covariance--for identifying grassland core habitat to target conservation.
Berry LL, DeGregorio BA, Uden DR, Roberts CP. 2024. Grassland bird occupancy responses to two new spatial early warning signals of state transitions: testing spatial variance and spatial covariance. Annual Meeting of the Society for Range Management. Sparks, NV, USA.	January 2024	We created a new spatial early warning signal of state transitions from grasslands to woodlands, and we tested grassland bird responses to the new early warning signal. Grassland birds avoided early warning signals, indicating that this method is a suitable rapid mapping tool for quantifying grassland health and restoration outcomes.
Bayer, L.M., R. Fournier and D.D. Magoulick. 2017. Modeling the effects of crayfish invasion and drought on hypothetical crayfish population dynamics. Arkansas Water Resources Conference, Fayetteville, Arkansas	July 2017	Our objectives were to model the population dynamics of potential crayfish species with theoretical life histories and assess how these populations could be affected by the impacts of invasive species and drought. By constructing models that explore a wide variety of life histories and disturbance scenarios, we hope to provide managers with tools to develop broadly applicable conservation strategies.
Bayer, L.M and D.D. Magoulick. 2024. Influence of flow regime and drought on seasonal population dynamics of co-occurring stream crayfish species. International Association of Astacology, Zagreb, Croatia.	September 2024	The only study to examine colonization and extinction dynamics of stream crayfish and factors affecting population dynamics.
Bayer, L., R. Fournier and D.D. Magoulick. 2019. Modelling effects of crayfish invasion and drought on population dynamics of generalized crayfish life history strategies. Emerging Researchers National (ERN) Conference in STEM, Washington, D.C.	February 2019	North American crayfish species face several environmental and ecological threats including invasive species and intensified drought and demographic models can allow examination of population dynamics of a targeted species under a wide variety of disturbance scenarios. By constructing models that explore a broad array of life histories and disturbance regimes, we hope to provide managers with tools to develop generalized, widely-applicable conservation strategies in data-depauperate systems.
Bayer, L., R. Fournier and D.D. Magoulick. 2018. Modelling effects of crayfish invasion and drought on population dynamics of generalized crayfish life history strategies. National Conference for Undergraduate Women in Mathematics, Lincoln, Nebraska.	February 2018	North American crayfish species face several environmental and ecological threats including invasive species and intensified drought and demographic models can allow examination of population dynamics of a targeted species under a wide variety of disturbance scenarios. By constructing models that explore a broad array of life histories and disturbance regimes, we hope to provide managers with tools to develop generalized, widely-applicable conservation strategies in data-depauperate systems.
Bayer, L., R. Fournier and D.D. Magoulick. 2018. Modelling effects of crayfish invasion and drought on population dynamics of generalized crayfish life history strategies. Joint Mathematics Meetings, San Diego, California.	January 2018	North American crayfish species face several environmental and ecological threats including invasive species and intensified drought and demographic models can allow examination of population dynamics of a targeted species under a wide variety of disturbance scenarios. By constructing models that explore a broad array of life histories and disturbance regimes, we hope to provide managers with tools to develop generalized, widely-applicable conservation strategies in data-depauperate systems.
Bare, C.M. and D.D. Magoulick. 2005. Movement and habitat use of smallmouth bass in the Buffalo National River drainage of Arkansas. Southern Division American Fisheries Society, Virginia Beach, Virginia.	February 2005
Bare, C.M. and D.D. Magoulick. 2005. Movement and habitat use of smallmouth bass in the Buffalo National River drainage of Arkansas. American Fisheries Society, Pine Bluff, Arkansas.	February 2005
Banks, B.T., J.P. Ludlam, and D.D. Magoulick. 2009. Effects of crayfish density on benthic periphyton. Arkansas Academy of Science, Clarksville, AR.	April 2009
Baecher, J., D.R. Leasure, D.T. Lynch, and D.D. Magoulick. 2014. Influence of land use and hydrologic disturbance on crayfish assemblages. Plenary-Themed Special Integrated Session on Large-scale limnology – Integrating across landscapes to understand regional controls on biodiversity and nutrient cycles, Joint Aquatic Sciences Meeting, Portland, Oregon.	May 2014	We sought to determine if anthropogenic land use and hydrologic disturbance are associated with crayfish density in the Ozark Highlands. Crayfish densities were positively related to hydrologic disturbance, but showed no relationship to land use or stream habitat.
B.A. DeGregorio. 2022. Developing and maintaining cooperator relationships. New Scientist Orientation. Denver, CO.	August 2022	Cooperative Research Units rely upon healthy, interactive relationships between cooperators. Here, I present several strategies and suggestions to develop and maintain these relationships for new scientists.
B.A. DeGregorio, S.J. Tetzlaff, B.A. Kingsbury, and J.H. Sperry. Does Environmental Enrichment Improve Head Starting for Eastern Box Turtles?	October 2019	This is a field demonstration and validation of an often used conservation technique, head-starting. Empirical evidence is needed to evaluate the utility of this approach for conservation practices.
Auriel M.V. Fournier, Doreen C. Mengel, David G. Krementz. 2016. Habitat use by Autumn Migrating Sora in the Mississippi Flyway. Society of Wetland Scientist Meeting, Corpus Christi.	May 2016	Management of many public moist-soil wetlands is geared towards waterfowl despite the importance of these wetlands to webless game birds. We assessed habitat use of sora on managed public moist-soil wetlands to offer managers information on how to integrate other wetland birds into their management schemes.
Asher, M. B.A. DeGregorio, E.V. Ruther, C. Middaugh, J. Veon, A. Massey, C. Massery, G. Christie, and C. Gale. 2021. Bobwhite Occupancy on Multiple Spatial Scales. Presentation to the Bobwhite Technical Committee.	August 2021	Evaluation of suitable habitat across Arkansas to help prioritize areas for management action.
Annaratone, B.L., C. Larson, A. Dowling, D.D. Magoulick, C. Prater and M. Evans-White. 2022. The influence of climate and landscape on Allocapnia mohri distribution in Arkansas. Joint Aquatic Sciences Meeting, Grand Rapids, Michigan.	May 2022	Stoneflies are one of the most threatened aquatic orders globally due to climate change, pollution, and habitat loss. Our models suggest distribution shifts are due to a combination of climate and landscape changes, and 2021-2022 surveys will focus on narrowing down these factors to aid conservation efforts.
Annaratone, B., C. Larson, A. Dowling, D. Magoulick, C. Prater and M. Evans-White. 2021. The influence of landscape and local factors on Allocapnia rickeri distribution in Arkansas. Society for Freshwater Science, virtual meeting.	May 2021	We examined the influence of landscape and local scale factors on distribution of a stonefly species of conservation concern.
Akpejeluh P, Donovan VM, Wonkka CL, Roberts CP. 2025. Spatiotemporal Patterns of Cogongrass Invasion in the Southeastern United States. IALE-North America Annual Conference. Raleigh, NC.	April 2025	Here, we integrated presence-absence and presence-only data for Cogongrass (<i>Imperata cylindrica</i>) to estimate density and predict the spread of invasion across time and space using discrete grid cells. This study underscores the importance of dynamic, non-stationary models for invasive species management.
Schmit J, Fournier AMV, Roberts CP, Rowe K. 2024. Breeding and Migration Ecology of Arkansas King Rails. Wilson Ornithological Society Annual Conference. Peoria, IL.	July 2024	King Rails are a secretive marsh bird that are declining across their range and are species of greatest conservation need in multiple states. We show King Rails in a restored emergent wetland in southeast Arkansas are mostly resident and rely on emergent vegetation for nesting habitat.

Theses and Dissertations

Theses and Dissertations	Publication Date
THINKING OUTSIDE THE BOX: EFFECTS OF ENVIRONMENTAL ENRICHMENT AND REARING DURATION ON BOX TURTLE HEAD-STARTING SUCCESS	July 2019
Shaw, M. 2023. Habitat Associations of the Plains Spotted Skunk. University of Arkansas. MS Thesis	December 2023
Sebright, C. E. 2015. Spring migration ecology of American woodcock (Scolpax minor) in the Central Management Region of the United States. M.S. Thesis. University of Arkansas. Fayetteville.	December 2015
Scott, L. A. 2010. Species richness and habitat use of secretive marsh birds in managed wetlands in the Arkansas River Vallery of Western Arkansas. M.S. Thesis. University of Arkansas, Fayetteville.	December 2010
Ronke, M. E. 2014. Survival, abundance, and geographic distribution of temperate-nesting Canada geese (Branta canadensis) in Arkansas. M.S. University of Arkansas, Fayetteville.	May 2014
Robert Fournier, Ph.D. 2020. Biological responses of Ozark stream communities to compounded stressors: The convergence of drought, nutrient pollution, and novel predation. University of Arkansas.	December 2020
Reddin, C. J. 2014. Small mammal community associations and habitat use at Pea Ridge National Military Park, Benton County, Arkansas. M.S. thesis, University of Arkansas, Fayetteville.	May 2014
Pittman, H. T. 2014. Effects of Large Scale Growing Season Prescribed Burns on Movement, Habitat Use, Productivity, and Survival of Female Wild Turkey on the White Rock Ecosystem Restoration Project of the Ozark-St. Francis National Forest. Ph.D. dissertation. University of Arkansas, Fayetteville	July 2014
Moore, J. D. 2016. Migration ecology of American woodcock (Scolopax minor). M.S. Thesis. University of Arkansas. Fayetteville.	December 2016
Matt Nolen, M.S. Habitat modeling of three endemic crayfish species in the Black River drainage of Missouri and Arkansas: Factors affecting distribution and abundance. University of Arkansas.	December 2012
Matt Dekar, Ph.D. Spatial and temporal variation in the structure of stream food webs: investigating the effects of shifting basal resources and predation from a top predator, the river otter (Lontra canadensis). University of Arkansas. Degree granted.	December 2009
Lynch, D.T. 2015. Hydrology-Biology response relationships in the Ozark Highlands. University of Arkansas PhD dissertation.	December 2015
Leah McTigue. 2023. Density and Occupancy of Mammals Along an Urban to Rural Gradient in Northwest Arkansas. University of Arkansas.	June 2023
Leah Bayer, Ph.D. 2024. Influence of Invasive Species, Drought, and Stream Permanence on Stream Crayfish Species with a Focus on the Imperiled Mammoth Spring Crayfish (Faxonius marchandi). University of Arkansas.	August 2024
Jon Flinders, Ph.D. Stable isotope analysis (δ13C and δ15N) and bioenergetic modeling of spatial-temporal foraging patterns and consumption dynamics in brown and rainbow trout populations within catch-and-release areas of Arkansas tailwaters.	May 2012
John Veon. 2021. Body mass and body condition variation of mallards (Anas platyrhynchos) within and among winters within the Lower Mississippi Alluvial Valley. Master's Thesis	December 2021
John Ludlam, Ph.D. Effects of fish and crayfish on ecosystem structure and function during stream drying. University of Arkansas.	May 2009
Herbert, J. 2015. The abundance and distribution of mallards in the lower Mississippi Alluvial Valley of Arkansas. M.S. Thesis. University of Arkansas. Fayetteville.	December 2015
Graham, Nicole, M.S. 2017. Ecological importance of invader source population and disturbance in aquatic invasions. University of Arkansas. Degree granted.	May 2017
Emily P. Johansson. 2023. Effects of Landscape and Yard Features on Mammals in Residential Yards in Northwest Arkansas. Masters Thesis. University of Arkansas Fayetteville	May 2023
Ellery V. Lassiter. 2022. Seasonal Patterns in Activity and Occupancy Dynamics of the Imperiled Spotted Turtle (Clemmys guttata). Dissertation Defense. University of Arkansas.	December 2022
Doug Leasure, Ph.D. Applications of a new Geodata Crawler for landscape ecology: From mapping natural stream hydrology to monitoring endangered beetles. University of Arkansas.	December 2014
Chris Middaugh, Ph.D. 2017. Interactive Effects of Flow Regime, Climate Change, and Angler Harvest on Smallmouth Bass at the Southern Range Extent. University of Arkansas.	August 2017
Carroll, J. M. 2011. The development of a winter survey for Wilson's snipe in the Mississippi Flyway. M.S. Thesis. University of Arkansas.	May 2011
Bruckerhoff, L.A. 2016. The Role of Hydrologic Regimes in Driving Morphologic Divergence and the Trait Compositions of Fish Assemblages. University of Arkansas MS thesis.	May 2016
Bolenbaugh, J. R. 2010. Status, distribution, and habitat use of the king rail and other secretive marsh birds in the Upper Mississippi River/Great Lakes Joint Venture	August 2010
Anna Richardson, B.S. How Flow Regime Affects Predator-Prey Relationships in Stream Darter and Shiner Species. University of Arkansas. Honors Thesis	May 2022
Andrhea Massey. 2021. Assessing the Density, Demography, and Resilience to Harvest of Freshwater Turtles in Arkansas.	December 2021
Allyson Yarra, M.S. 2017. Influence of stream permanence, predation, and invasive species on crayfish in the Ozark Highlands with an emphasis on species of greatest conservation need (Orconectes marchandi, Orconectes eupunctus and Cambarus hubbsi). University of Arkansas.	May 2017

Technical Publications

Technical Publications	Publication Date
White-tailed Deer Management on Private Lands in Arkansas. Project report submitted to Arkansas Game & Fish Commission.	October 2003
Scott, LA and DG Krementz. 2011. Occupancy and Habitat Selection of Secretive Marsh Birds in the Western Arkansas River Valley.	May 2011
Reddin, C. J. 2014. Small mammal community associations and habitat use at Pea Ridge National Military Park, Benton County, Arkansas. Final Report to National Park Service	May 2014
Pittman, H. T. 2014. Effects of Large Scale Growing Season Prescribed Burns on Movement, Habitat Use, Productivity, and Survival of Female Wild Turkey on the White Rock Ecosystem Restoration Project of the Ozark-St. Francis National Forest.	July 2014
Perkins, M., S. L. King, and D. Krementz. 2009. Stopover habitat use by king rails: evaluation and habitat management implications. Final Report to US Fish & Wildlife Service.	July 2009
Opinions, Preferences, and Attitudes of Hunters on White-tailed Deer Management in Arkansas. Project report submitted to Arkansas Game & Fish Commission.	January 2004
Nolen, M. and D.D. Magoulick. 2011. The Imperiled Coldwater Crayfish (Orconectes eupunctus) in the Black River Drainage of Missouri and Arkansas: Distribution, Population Genetics and Factors Affecting Distribution and Decline. Annual Report, MDC Account 8104; WPI 720. Fiscal Year 2011, Columbia, Missouri.	May 2011
Magoulick, D.D. and R.J. DiStefano. 2001. Potential impact of the introduced crayfish Orconectes neglectus on native crayfish in the Spring River drainage. June 2001. Final Report prepared for the U.S. Fish and Wildlife Service, Columbia, Missouri.	June 2001
Magoulick, D.D. 2003. Factors Affecting Migration and Recruitment in Headwater Fish Assemblages of Buffalo National River, Project Accomplishment Report FY2003, Buffalo National River, Midwest Region, National Park Service.	September 2003
Magoulick, D.D. 2002. Factors Affecting Migration and Recruitment in Headwater Fish Assemblages of Buffalo National River, Project Accomplishment Report FY2002, Buffalo National River, Midwest Region, National Park Service.	September 2002
Magoulick, D.D. 2001. Factors Affecting Migration and Recruitment in Headwater Fish Assemblages of Buffalo National River, Project Accomplishment Report FY2001, Buffalo National River, Midwest Region, National Park Service.	September 2001
Magoulick, D.D. 2006. Factors affecting migration and recruitment in headwater fish assemblages of Buffalo National River. September 2006. Final Report prepared for the National Park Service, Harrison, Arkansas.	September 2006
Lehnen, S. E. 2010. Chronology, distribution, and dispersion of fall migrating shorebirds through the Lower Mississippi River Alluvial Valley.	March 2010
Leasure, D.R. and L.A. Bruckerhoff. 2016. Quantification of hydrologic alteration and relationships to biota in Arkansas streams: Development of tools and approaches for un-gaged streams. Final Report prepared for the State Wildlife Grant program of the Arkansas Game and Fish Commission, Little Rock, Arkansas.	December 2016
Larson, E.R. and D.D. Magoulick. 2007. Effects of the introduced crayfish Orconectes ngelectus on a native crayfish Orconectes eupunctus in an Ozark stream system. Final Report prepared for the Arkansas Game and Fish Commission, Little Rock, Arkansas.	December 2007
Krementz, D.G., and J.J. Jackson. 2000. Woodcock in the Southeast. Natural history and management for landowners. Univ. Georgia Press. Georgia Cooperative Extension Service.	December 2000
Kelley, J. R. Jr., S. J. Williamson, M. Banker, D. R. Dessecker, D. G. Krementz, D. G. McAuley, W. L. Palmer, T. J. Post. Implementing the American woodcock conservation plan. Transactions of the North American Wildlife and Natural Resource Conference. In press.	March 2008
Fournier, A. M. V., and K. Willard. 2015. King rail nesting and brood rearing ecology in managed wetlands: Final report USFWS Division of Migratory Birds Webless Program	September 2015
Fournier, A. M. V. 2016. Effects of wetland management strategies on habitat use of fall migrating rails on intensively-managed wetland complexes in Missouri. Final Report RWO 41.	October 2016
Cushing, A.W. and D.D. Magoulick. 2007. Effects of catch-and-release areas on movement and survival of rainbow trout in Arkansas tailwaters. Final Report prepared for the Arkansas Game and Fish Commission, Little Rock, Arkansas.	August 2007
Carroll, J. M. 2011. THE DEVELOPMENT OF A WINTER SURVEY FOR WILSON’S SNIPE IN THE MISSISSIPPI FLYWAY. Final Report US Fish and Wildlife Service.	May 2011
Bolenbaugh, J. R., and D. G. Krementz. 2010. Assessing an Expert-based Landscape Approach to Predict King Rail Distributions in the Upper Mississippi River/Great Lakes Joint Venture.	September 2010
B.A. DeGregorio, J.H. Sperry, and B.A. Kingsbury. Transferring "translocation science" to wildlife conservation on DoD installations: demonstration of environmental enrichment and soft release technology. 2019. Report ID: RC201616. DoD SERDP-ESTCP program.	April 2019

Data or Software Releases

Type	Citation	Publication Date
Data Release	Veon, John T. et al. (2024). Morphometrics of mallards in the Lower Mississippi Alluvial Valley and associated climate variables from 1979-2021 [Dataset]. Dryad. https://doi.org/10.5061/dryad.z34tmpgnz	November 2023
Data Release	Veon, John T. et al. (2024). Morphometrics of mallards in the Lower Mississippi Alluvial Valley and associated climate variables from 1979-2021 [Dataset]. Dryad. https://doi.org/10.5061/dryad.z34tmpgnz	July 2024
Data Release	Veon, John T. et al. (2024). Morphometrics of mallards in the Lower Mississippi Alluvial Valley and associated climate variables from 1979-2021 [Dataset]. Dryad. https://doi.org/10.5061/dryad.z34tmpgnz
Data Release	McTigue, L. and B.A. DeGregorio. Nine Banded Armadillo (Dasypus novemcinctus) Occupancy and Density Along an Urban to Rural Gradient.	June 2023
Data Release	McTigue, L. and B.A. DeGregorio. Nine Banded Armadillo (Dasypus novemcinctus) Occupancy and Density Along an Urban to Rural Gradient.	August 2023
Data Release	McTigue, L. and B.A. DeGregorio. Density of five mesocarnivores along an urban to rural gradient in northwest Arkansas. Dryad. DOI: https://doi.org/10.5061/dryad.47d7wm3kc
Data Release	Johansson, E.P. and B.A. DeGregorio. Mammalian Camera Trap Data: Northwest Arkansas. Dryad. https://doi.org/10.5061/dryad.kd51c5bb6	June 2023
Data Release	Johansson, E.P. and B.A. DeGregorio. Mammalian Camera Trap Data: Northwest Arkansas. Dryad. https://doi.org/10.5061/dryad.kd51c5bb6	July 2024

Cooperative Fish and Wildlife Research Units Program: Arkansas Education, Research and Technical Assistance for Managing Our Natural Resources

Arkansas Research Activities

Cooperative Fish and Wildlife Research Units Program: Arkansas
Education, Research and Technical Assistance for Managing Our Natural Resources