Zentner, D., D. Shoup, and S. K. Brewer. 2021. Tournament harvest and movements of catostomids in the Eucha-Spavinaw river-reservoir complex. Annual Meeting of the Oklahoma Chapter of the American Fisheries Society, Oklahoma
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August 2021
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Little is known regarding the susceptibility of nongame fishes to tournament harvest. The goal of this study was to understand the susceptibility of catostomids to gigging tournament harvest within the Spavinaw-Eucha river-reservoir complex. To do this, we are seasonally sampling fixed sites within the reservoir, the perennial lower portion of the major tributary, the intermittent upper portion of the major tributary, two perennial tributaries, and five intermittent tributaries with a variety o
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Zentner, D., D. Shoup, and S. K. Brewer. 2021. Suggestions for using a new overlap statistic to answer fisheries science questions. Annual Meeting of the Oklahoma Chapter of the American Fisheries Society, Oklahoma
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August 2021
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Pastore and Calcagnì (2019) proposed using the distribution-free method "" for estimating overlap, and by extension effect size, in the social sciences (specifically the field of psychology). Given the inherent flexibility of a distribution-free overlap metric, has now been used in various scientific disciplines. To better facilitate the use of n in fisheries, we overview its basic properties, outline its implementation in program R, and show its utility as an estimate of effect size when paire
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Zentner, D., D. Shoup, and S. K. Brewer. 2021. Distribution and movements of catostomids in a river-reservoir complex and susceptibility to tournament harvest. Annual Meeting of the American Fisheries Society, Baltimore
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November 2021
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Little is known regarding the susceptibility of nongame fishes to tournament harvest. The goal of this study was to understand the susceptibility of catostomids to gigging tournament harvest within the Spavinaw-Eucha river-reservoir complex. To do this, we are seasonally sampling fixed sites within the reservoir, the perennial lower portion of the major tributary, the intermittent upper portion of the major tributary, two perennial tributaries, and five intermittent tributaries with a variety o
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Zentner, D., D. Shoup, and S. K. Brewer. 2021. Comparing distributions using the recently developed overlap statistic : Examples and suggestions for incorporation into the fishery scientist’s statistical toolbox. Annual Meeting of the American Fisheries Society, Baltimore
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November 2021
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Pastore and Calcagnì (2019) proposed using the distribution-free method "" for estimating overlap, and by extension effect size, in the social sciences (specifically the field of psychology). Given the inherent flexibility of a distribution-free overlap metric, has now been used in various scientific disciplines. To better facilitate the use of n in fisheries, we overview its basic properties, outline its implementation in program R, and show its utility as an estimate of effect size when paire
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Wedgeworth, M., R. Mollenhauer, and S. K. Brewer. 2022. Temporal and spatial variability of Prairie Chub Machrybopsis australis spawning in the upper Red River basin. Annual Meeting of the Southern Division of the American Fisheries Society.
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January 2022
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The Prairie Chub<i> Machrybopsis australis</i> is assumed a pelagic-broadcast spawning cyprinid (i.e., pelagophil) endemic to the Red River basin. Pelagophils spawn over a protracted season and their recruitment is thought to be linked to higher discharge and connectivity. We systematically collected age-0 Prairie Chub across the catchment during spring and summer 2019 and 2020 to determine the factors related to spawning dates.
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Wedgeworth, M and SK Brewer. 2020. Context dependency of Prairie Chub Machrybopsis australis flow ecology relationships. American Fisheries Society Annual Meeting, Columbus.
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September 2020
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The Prairie Chub is of conservation interest due to uncertainty about its life history, distribution and status. We modeled hydrologic relationships across coarse and fine scales to understand how these relationships change across space and time.
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Vasvil, A., D. Shoup, and S. K. Brewer, 2024. Stock Assessment of Landlocked Striped Bass Using an Integrated Population Model American Fisheries Society Annual Meeting, Honolulu.
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September 2024
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The sustainability of landlocked Striped Bass (<i>Morone saxatilis</i>) populations in river-reservoir systems presents significant challenges due to complex habitat interactions and recreational fishing pressures. From 2019 to 2022, we conducted a study in the Robert S. Kerr river-reservoir complex, Oklahoma, using an integrated population model to analyze the dynamics of this recreational species.
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Valente, JJ. Biodiversity conservation in human-dominated landscapes: tools, challenges, and solutions. (2024). Miami University Biology Department Seminar, Oxford, OH.
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June 2024
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Maintaining a diverse community of plants and animals is critical to supporting functional ecosystems, their services, and the well-being of the humans that depend on them. In this seminar, Dr. Valente discusses how his research is helping to identify causes, consequences, and solutions to biodiversity loss in human-dominated landscapes.
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Valente, JJ. (2023). Challenges and solutions at the intersection of coffee, conservation, and communities. Kreher Preserve and Nature Center Science on Saturday seminar series, Auburn, AL.
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January 2023
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We surveyed avian communities in and around coffee farms in northern Colombia to help understand local and landscape characteristics that support biodiverse agroforestry systems. Through this work, we are helping to improve the Smithsonian’s Bird-Friendly Coffee certification program which promotes biodiversity and economic stability by rewarding farmers for using wildlife-friendly farming practices.
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Valente, JJ, JW Rivers, Z Yang, SK Nelson, JM Northrup, DD Roby, CB Meyer, and MG Betts. (2023). Ongoing forest fragmentation negatively affects the distribution of an endangered forest-breeding bird. American Ornithological Society and Society of Canadian Ornithologists Joint Conference.
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August 2023
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Using surveys from > 42,000 survey locations throughout the Pacific Northwest, we tested the effects of habitat loss and fragmentation on breeding Marbled Murrelets. We found that murrelet habitat loss and fragmentation are ongoing, and having negative effects on breeding distributions.
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Valente, JJ, JR Rivers, Z Yang, SK Nelson, J Northrup, D Roby, C Meyer, and M Betts. (2023). Negative effects of ongoing habitat fragmentation on Marbled Murrelets are amplified near its range edge. Annual Meeting of the Pacific Seabird Group.
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February 2023
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We examined impacts of habitat loss and fragmentation on endangered Marbled Murrelets. We found that both processes have negative effects on occupancy rates for breeding murrelets, and that murrelet habitat has declined by 20% since 1988.
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Valente, J.J., V. Jirinec, and M. Leu (2024). Thinking beyond the closure assumption: designing surveys for estimating biological truth with occupancy models. 109th annual meeting of the Ecological Society of America, Long Beach, CA, 4-9 August 2024.
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August 2024
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For mobile animals, occupancy of sampling sites changes in space and time. Consequently, the spatial and temporal aspects of a sampling protocol have strong, but predictable, effects on occupancy model parameter estimates. Our results demonstrate that how these factors interact is critical for designing surveys that produce occupancy estimates representative of the biological process of interest to a researcher.
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Vaisvil, A. , S. K. Brewer, and D. Shoup. 2021. Movement patterns of Striped Bass (Morone saxatilis) in a river-reservoir complex, Annual Meeting of the Oklahoma Chapter of the American Fisheries Society, Oklahoma
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August 2021
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Striped Bass (<i>Morone saxatilis</i>) is anadromous and supports various commercial and recreational fisheries across its range. Gaining insight into the biotic and abiotic factors underpinning landlocked Striped Bass populations is essential for developing meaningful management actions.
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Vaisvil, A. , S. K. Brewer, and D. Shoup. 2021. Movement patterns of Striped Bass (Morone saxatilis) in a river-reservoir complex, Annual Meeting of the American Fisheries Society, Baltimore
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November 2021
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Striped Bass (<i>Morone saxatilis</i>) is anadromous and supports various commercial and recreational fisheries across its range. Gaining insight into the biotic and abiotic factors underpinning landlocked Striped Bass populations is essential for developing meaningful management actions.
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Vailsvil, A., S. K. Brewer, and D. Shoup. 2021. Movement Patterns of Striped Bass (Morone saxatilis) in the Robert S. Kerr River-reservoir Complex. Annual Meeting of the Southern Division of the American Fisheries Society, Virtual.
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April 2021
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Gaining insight into the biotic and abiotic factors underpinning landlocked Striped Bass populations is essential for developing meaningful conservation and management actions. The objective of this study is to examine the segment-scale movement of Striped Bass in the Arkansas River, Oklahoma.
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Turner,G.T.,E.R. Irwin,D.Hite and G.Bhattarai. Modeling Water Quality in the Saugahatchee Creek Watershed:A Soil and Water Assessment Tool Approach. Alabama Water Resources Conference. September 2006. Perdido, Alabama.
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September 2006
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Turner,G. and E.Irwin. February 2006. A GIS-based empirical approach for modeling biodiversity in the Alabam-Coosa-Tallapoosa (ACT) river basin. 2006 Spring Meeting of the Southern Division of the American Fisheries Society, San Antonio, Texas.
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February 2006
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Turner, G.T., K. D. Kennedy, T. D. Piper and E. R. Irwin, (poster) September 2007. Using Aquatic GAP analysis to prioritize watersheds for management of Alabama?s species of greatest conservation need. National GAP Analysis Meeting. Asheville, North Carolina.
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September 2007
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Turner, G.T., K. D. Kennedy, T. D. Piper and E. R. Irwin, (poster) June 2007. Using Aquatic GAP analysis to prioritize watersheds for management of Alabama?s species of greatest conservation need. Auburn University Water Resources Conference, Auburn, Alabama.
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June 2007
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Turner, G.T. and E.R. Irwin. November 2006. Modeling Aquatic Biodiversity in the Alabama-Coosa-Tallapoosa Basin-A GIS Based Empirical Approach. 3rd Annual Alabama GIS Symposium.
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November 2006
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Turner, G.T. and E. R. Irwin. February 2007. Using SWAT models to assess sources of impacts to water quality on a watershed scale. Spring Meeting of the Southern Division of the American Fisheries Society, Memphis, Tennessee.
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February 2007
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Tucker AM, McGowan CP. 2016. Assessing the influence of migratory connectivity and stopover site disturbance on population dynamics using a full annual cycle simulation model. North American Ornithological Congress, Washington DC, August 2016
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August 2016
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Evaluates the ecological and management importance of stop over habitat for long distance migratory shorebirds using full annual cycle network models.
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Tucker AM, Derose Wilson A, McGowan CP. 2017. COMBINING MULTISTATE MODELS AND NETWORK THEORY TO EVALUATE MOVEMENT PATTERNS DURING MIGRATORY STOPOVER, EURING 2017, Barcelona, Spain.
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July 2017
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Combining multistate models and network models to assess movement patterns and space use during migratory stopover.
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Taylor, M., K. Mickett, M. Ross, K. Kleiner and E. Irwin. A stream tank for evaluating habitat selection of juvenile sturgeon: solving the habitat use/availability problem. February 2003. Spring Meeting of the Southern Division of the American Fisheries Society. Wilmington, North Carolina.
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February 2003
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Taconya D. Goar and Elise. R. Irwin. February 2013. Effects of experimentally fluctuating flows and water temperatures on early growth and survival juvenile of channel catfish, Ictalurus punctatus and Alabama bass Micropterus henshalli. Southern Division AFS Spring Meeting Nashville, TN.
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February 2013
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This study reports experimental results of fluctuating flow and temperature on growth and mortality of important sportfish. The work contributes data for decision making by stakeholders regarding managed flows from Harris Dam.
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Stell, E., S. K. Brewer, and D. DeVries. 2023. A comparison of thermal tolerances using electron transport and critical thermal maximum in fishes. Annual Meeting of the Southern Division American Fisheries Society, Norfolk.
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February 2023
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Traditional techniques for determining thermal tolerances of species are often lethal and time consuming. We used Largemouth Bass <i>Micropterus salmoides</i>, a species with well documented thermal tolerance and respiration rates, to test the efficacy of using electron transport system to determine thermal tolerance and respiration rate in response to variable acclimation temperatures.
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Stell, E., D. DeVries, L. Horne, S. K. Brewer, R. Wright. 2023. Using the electron transport system as an indicator of organismal thermal tolerance. American Fisheries Society Annual Meeting, Grand Rapids.
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August 2023
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Using the enzyme activity of the electron transport system within mitochondria has been suggested as an alternative and may provide a non-lethal, quick, and efficient alternative to traditional techniques. Here we use Largemouth Bass, a species with well documented thermal tolerance and respiration rates, to test the efficacy of using ETS to determine thermal tolerance and respiration rate in response to variable acclimation temperatures in a freshwater fish.
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Steffensmeier, Z., S. K. Brewer, A. Rodger, T. Starks, M. Wedgeworth, E. Nguyen, and J. S. Perkin. 2023. Nexus of Niches: Multidimensional Niche Modelling to Improve Management of Prairie Chub (Macrhybopsis australis). American Fisheries Society Annual Meeting, Grand Rapids.
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August 2023
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Delineation of the realized niche of a species is possible through simultaneous consideration of biological, abiotic, and movement (BAM) parameters, and this information can be useful for conservation planning. The purpose of this study was to employ a BAM framework to estimate the realized niche of Prairie Chub (<i>Macrhybopsis australis</i>), an imperiled fish endemic to the Red River basin of Texas and Oklahoma.
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Silvano, A.L., K.K. Kleiner, B. Taylor, E. R. Irwin, M.D. MacKenzie, M.S. Mitchell, and J.B. Grand. Alabama Gap Analysis Project. October 2002. Auburn University GIS Day. Auburn, Alabama.
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October 2002
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Silvano, A. L., K. K. Kleiner, B. Taylor, E. R. Irwin, M. D. Mackenzie, M. S. Mitchell, and J. B. Grand. Alabama Gap Analysis Project: managing biodiversity with geographical information systems. 2003. Mountain longleaf conference, Jacksonville, Alabama.
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October 2003
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Sharp, J. and, E. Irwin. Non-Lethal Estimation of Proximate Body Composition of Channel Catfish Using Bioelectrical Impedance Analysis. Annual Meeting of the American Fisheries Society, Tampa, FL
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August 2017
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This non-lethal technique will help assess condition of channel catfish in relation to body composition and environmental effects. No such methodology is available.
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Sharp, J. and E. Irwin. 2016. Estimation of proximate body composition of Channel Catfish, Ictalurus punctatus, using bioelectrical impedance analysis. Alabama Water Resources Conference. Perdido Beach, Alabama.
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September 2016
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Measuring condition of individual fish can be an effective method for assessing population level impacts of environmental variation. The development of a bioelectrical impedance model for channel catfish will enhance ability to assess condition of fish in the wild.
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Sharp, J and E Irwin. 2017. Estimation of proximate body composition of Channel Catfish, Ictalurus punctatus, using bioelectrical impedance analysis. Alabama Chapter of the American Fisheries Society.
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February 2017
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We describe the methods for validating a non-lethal technique for estimating condition of channel catfish. This technique will be valuable for field and aquaculture applications.
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Shannon Brewer, Jordan Ramey, and Robert Mollenhauer . 2024. Crayfish confusion: Are you a competitor or do you thrive in disturbed habitat? Annual Meeting of the Southern Division American Fisheries Society, Chattanooga.
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February 2024
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Although dominant and aggressive native species can play important ecological roles, they can also have negative effects on both other species in their native range or novel species when introduced outside their range. We used field-collected covariates and geospatial data in a multi-species occupancy model framework to determine the factors related to the occurrence of crayfishes native to the Ozark Highlands.
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Sakaris, Peter C., and Irwin, E. R. February 2007. Incorporation of hydrologic variation and mortality as stochastic factors influencing the growth of flathead catfish populations: implications for ecology and management. Spring Meeting of the Southern Division of the American Fisheries Society, Memphis, Tennessee.
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February 2007
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Sakaris, P. and E. Irwin. February 2006. Daily aging of age-0 catfishes with implications for assessing the effects of environmental variables on early life history stages. 2006 Spring Meeting of the Southern Division of the Americn Fisheries Society, San Antonio, Texas
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February 2006
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Ryer, K., McGowan, C.P.. 2016, Error in Remotely Sensed Land-Cover Data: Is It Important to Know for Occupancy Estimation. North American Congress for Conservation Biology, Madison, WI, July 2016.
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July 2016
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Uses simulation modeling to assess the effects of land cover classification error on habitat association studies.
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Rogers, J., S. K. Brewer, T. R. Ingram, and S. W. Golladay. 2024. Seasonal movement variability in riverine Shoal Bass and Largemouth Bass populations. American Fisheries Society Annual Meeting, Honolulu.
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September 2024
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Understanding fish movements is important for managing populations because they reflect changing resource needs across the life cycle. Our study objective was to determine the seasonal movement variability of endemic Shoal Bass, <i>M. cataractae, </i>and native Largemouth Bass in the lower Flint River, Georgia to improve management of these riverine populations.
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Rogers, J. L., S. K. Brewer, S. M. Sammons, and S. W. Galladay. 2023. Environmental factors related to hatch timing of Shoal Bass Micropterus cataractae in the lower Flint River catchment. Annual Meeting of the Southern Division American Fisheries Society, Norfolk.
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February 2023
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Little is known about Shoal Bass reproductive requirements, especially in the lower Flint River. Our study objective was to determine how flow patterns, water temperature, and photoperiod affect hatch timing of Shoal Bass.
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Robinson, O.J., McGowan C.P., Apodaca J.J., 2016, Decision analysis for habitat conservation of an endangered, range limited salamander, North American Congress for Conservation Biology, Madison, WI, July 2016.
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July 2016
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Uses Structured Decision Making to inform habitat acquisition decisions for the endangered red hills salamander.
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Robinson OJ, McGowan CP, and Devers PK, 2015, A full annual cycle model for the American Black Duck. The Wildlife Society Annual Meeting, 2015, Winnipeg, CA
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October 2015
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Develops and present. the first full annual cycle model to migratory black ducks and investigates the presence of Density dependence.
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Rivers, J.W., L.J. Adrean, J.A. Bailey Guerrero, J. Dachenhaus, J.L. Fisher, C. Frisinger, M.-S. Garcia-Heras, B.D. Gerber, C.B. Meyer, S.K. Nelson, J.M. Northrup, D.D. Roby, J.J. Valente, C.Wolf, E. Woodis, Z. Yang, and M.G. Betts. 2024. Warming ocean conditions curtail breeding activity of the Marbled Murrelet, a most unusual forest-nesting bird. Oregon Chapter of The Wildlife Society Annual meeting, Hood River, OR.
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February 2023
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We are examining the ultimate and proximate factors influencing the breeding activity of an endangered forest-breeding seabird.
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Rivers, J., L. Adrean, J. Bailey-Guerrero, J. Dachenhaus, J. Fisher, C. Frisinger, M. Garcia-Heras, B. Gerber, C. meyer, K. Nelson, J. Northrup, D. Roby, J.J. Valente, C. Wolf, and E. Woodis. (2023). Influence of a warming ocean on the breeding activity of a most unusual - and threatened - forest-nesting bird. American Ornithological Society annual meeting.
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August 2023
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We are examining the ultimate and proximate factors influencing the breeding activity of an endangered forest-breeding seabird.
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Ramsey, P., S. K. Brewer, and D. DeVries. 2023. Interspecies variability of native fish nursery habitats in the lower Red River basin. Annual Meeting of the AL Chapter of the American Fisheries Society, Gulf State Park, AL
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January 2023
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Historically, nursery habitat in large rivers has been defined simply as shallow, calm waters; however, nursery habitats are likely to vary based on other coarse-scale habitat factors. The objective of our study was to describe nursery habitat of large river fishes that are understudied.
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Ramsey, P., S. K. Brewer, and D. DeVries. 2023. Context dependency of Lepomis nursery habitat in the lower Red River catchment. Annual Meeting of the Southern Division American Fisheries Society, Norfolk.
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February 2023
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Historically, nursery habitat has been defined simply as shallow, calm waters in large rivers; however, nursery habitats are likely to vary based on other coarse-scale habitat factors. The objective of our study was to describe nursery habitat of Lepomis fishes that are not well studied in river ecosystems.
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Ramsey, P. and S. K. Brewer. 2022. Factors related to the successful spawning of riverine Spotted Bass Micropterus punctulatus in the lower Red River basin. Annual Meeting of the Southern Division of the American Fisheries Society.
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January 2022
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Spotted Bass <i>Micropterus punctulatus </i>is one of the most widely distributed bass species in North America; however, many of their life history traits are not fully described. We used daily rings on otoliths to back-calculate spawning dates of Spotted Bass and examine environmental correlates.
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Ramey, J., S. K. Brewer, and R. Mollenhauer. 2023. Spatial segregation and shared landscape relationships of a crayfish assemblage of the Ozark Highlands. Annual Meeting of the Southern Division American Fisheries Society, Norfolk.
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February 2023
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Although the importance of crayfishes to ecosystem dynamics and energy transfer is well recognized, we lack information on crayfish distribution and habitat use for many species globally. We used field-collected covariates and geospatial data in a multi-species occupancy model framework to determine factors related to both detection and crayfish occupancy by several native species.
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Ramey, J., S. K. Brewer, and R. Mollenhauer. 2023. Analogous relationships between landscape constraints and a Faxonius assemblage in the Ozark Highlands. Annual Meeting of the AL Chapter of the American Fisheries Society, Gulf State Park, AL
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January 2023
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Although the importance of crayfishes to ecosystem dynamics and energy transfer is well recognized, we lack information on distributions and associated habitat use for many species. We used field-collected covariates and geospatial data collected in a multispecies occupancy model framework to determine the multiscale factors related to both crayfish detection and occupancy of 5 Faxonius species.
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Ramey, J. and S. K. Brewer. 2022. Multi-scale habitat use by Meek’s short pointed crayfish Faxonius meeki brevis in the Ozark Highlands ecoregion. Annual Meeting of the Southern Division of the American Fisheries Society.
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January 2022
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The Meek’s short pointed crayfish <i>Faxonius meeki brevis</i> is considered threatened by AFS due to a narrow distribution in drainages of Arkansas and Oklahoma. We used field-collected covariates and geospatial data to determine factors related to the probability of detection and occurrence of <i>F. meeki brevis</i>.
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Price, J., B. West, S. Ditchkoff, C. McGowan, S. Reeves, A. Keever. 2014 Deer Finder: software for identification of Deer in game camera photos. South Eastern Deer Study Group, February 2014.
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February 2014
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New software for analyzing time lapse photography for animal presence.
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Price Tack JL, McGowan CP, Ditchkoff SS, Waits L, 2017, ESTIMATING COYOTE DENSITY USING A MULTI-SITE SPATIAL CAPTURE-RECPATURE ANALYSIS, EURING 2017, Barcelona, Spain
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July 2017
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Applies spatial capture recapture analyses to coyote march recapture data to estimate density in Alabama.
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Price J.L., McGowan C.P., Ditchkoff S.S., 2015.The endangered hunter? Modeling a hunter population. The Wildlife Society Annual Meeting, 2015, Winnipeg, CA.
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October 2015
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Develops a model of hunter population dynamics with the goal of support deer harvest management decisions to benefit hunter populations.
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Piper Goar, T. D. and E. R. Irwin. January 2009. Effects of fluctuating hydrological regime and water temperature on juvenile channel catfish growth and survival. Spring Meeting of the Southern Division of the American Fisheries Society, New Orleans, Louisiana. Poster.
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January 2009
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Peterson, J.. Irwin, E.R., M.C. Freeman, B.J. Freeman and L. Kramer. Accounting for incomplete detectability in models of species presence/absence. June 2002. National GAP Annual Meeting, U.S. Geological Survey. Shepardstown, Maryland.
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June 2002
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Ouellette, K, E. Kosnicki, T. Hess, M.C. Lloyd and E. Irwin. Macroinvertebrate Community Response to Long-Term Flow Modification on the Tallapoosa River, Alabama. Annual Meeting of the American Fisheries Society, Tampa, Florida.
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August 2017
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Macroinvertebrate communities were studied at regulated and unregulated sections of the Tallapoosa River. The regulated sites exhibited truncated community structure,; whereas the fauna at the regulated sites were variable dependent on water availability.
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Ouellette, K, C Lloyd, and E Irwin. 2018. Macroinvertebrate response to flow and temperature in regulated and unregulated reaches of a hydropeaking river. Southern Division American Fisheries Society Spring Meeting, San Juan, Puerto Rico (Invited)
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March 2018
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Macroinvertebrate community structure varied by water year and degree of river regulation. These findings could inform river management below a hydropeaking dam.
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Ouellette, K and E Irwin. Long-Term Community Data from a River Subject to Hydropeaking: What Do We Know and Where Do We Go From Here? American Fisheries Society 148th Annual Meeting , Atlantic City, NJ.
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August 2018
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Macroinvertebrate community structure and fish populations varied by water year and degree of river regulation. These findings could inform river management below a hydropeaking dam.
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Ouellette K, E Kosnicki, Clint Lloyd, and E Irwin. 2017. Analysis of benthic macroinvertebrate communities in regulated and unregulated reaches of the Tallapoosa River, Alabama. Alabama Chapter of the American Fisheries Society.
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February 2017
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We present initial findings from macroinvertebrate analysis below R.L. Harris Dam. Regulated and unregulated reaches exhibit distinct macroinvertebrate communities.
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Olive, J.*, Schramm, H. L., Gerard, P. D., and E. R. Irwin. An evaluation of agreement between pectoral spines and otoliths for estimating ages of catfishes. Catfish 2010: Conservation, Ecology, and Management of Catfish: The Second International Symposium, St. Louis, Missouri
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June 2010
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Morse, L., R. Bennett, and J.J. Valente (2024). Forest cover and coffee cultivation system influence bird community functional diversity in the Sierra Nevada de Santa Marta, Colombia. Meeting of the American Ornithological Society, Estes Park, CO, 1-5 October 2024.
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October 2024
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This research demonstrates that avian functional redundancy increases with forest cover near coffee plantations, and results will help us understand how to support functioning agroforestry ecosystems.
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Morrison, J., E. Irwin, L. Lee and M. Goldhaber. Historical Geochemical and Biological Characterization of a Southern Appalachian Watershed Impacted by Coal Acid Mine Drainage. October 2002. Geological Society of America, National Meeting, Denver Colorado.
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October 2002
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Moore, M. J., Coulter, A. A., Golcher-Benavides, J., Rahel, F. J., Walters, A. W., Brewer, S. K., Wildhaber, M. L. 2024. A synthesis of the characteristics and drivers of introduced fishes in prairie streams: Can we manage harmful introduced fishes in these dynamic environments? Oral Presentation at the Midwest Fish and Wildlife Conference, Sioux Falls, South Dakota.
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January 2024
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In this paper we synthesize the state of knowledge of introduced fishes and their effects to fish communities in prairie streams, which have been historically overlooked ecosystems. This research can help guide future risk assessment, introduced fish suppression, and native fish conservation in prairie streams. This research is a product of the Prairie Fishes and Streams Collaborative Working Group, comprising scientists from multiple state, federal, and academic institutions.
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Moore, D. S. K. Brewer, and K Bockrath. 2022. Evaluation of p chip tags on small-bodied federally listed minnow and paedomorphic salamander species. Region 2, Fish and Aquatic Conservation Science Symposium, Virtual.
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February 2022
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Tagging animals is necessary for mark recapture and other methods used to estimate movements and population abundance.
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Mollenhauer, R. S. K. Brewer, J. B. Mouser, and V. L. Roland. 2023. Flow-ecology and land-use relationships of a large, diverse warmwater fish assemblage in the Red River catchment. American Fisheries Society Annual Meeting, Grand Rapids.
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August 2023
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Stream-fish distributions are often strongly associated with landscape characteristics at coarse spatial and temporal scales. These fundamental relationships, however, are poorly understood in many high diversity regions. Our objective was to identify relationships with both streamflow and anthropogenic disturbance for a large, warmwater fish assemblage using 35 years of existing survey data.
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Mickett, K.and E.Irwin. February 2006. Adaptive management of a highly-regulated southeastern river:tools for stakeholders. 2006 Spring Meeting of the Southern Division of the American Fisheries Society, San Antonio, Texas.
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February 2006
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McGowan, CP, Robinson OJ, Devers P. 2016. Decision analysis for habitat management of migratory waterfowl using a full annual cycle model. North American Ornithological Congress. Washington DC, August 2016
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August 2016
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Application of full annual cycle models to habitat management decision making for American Black Ducks.
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McGowan, CP, Lyons, JE, Smith, DR, Sweka, J, Nichols, JD, 2016, Developing consensus objectives for a multi-species, multi-stakeholder management problem: the case of horseshoe crab harvest in Delaware Bay. Wildlife Society Annual Meeting, Raleigh, 2016
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October 2016
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Reports on techniques for developing consensus objects with adversarial stakeholders.
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McGowan, CP, D Catlin, T Shaffer, C Gratto-Trevor, C Aron, 2013. A meta-population model for evaluating recovery criteria for Piping Plovers in the Great Plains. 131st meeting of American Ornithologist Union, Chicago, IL, August 2013
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August 2013
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Updates the great plains piping plover population viability model to apply spatial structure and incorporate new data and parameter estimates. Uses the model to present a method for establishing recovery criteria.
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McGowan, CP, 2014, Comparing Models of Red Knot population dynamics. American Ornithologists Union Annual Meeting, Estes Park, September 2014.
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September 2014
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Evaluates competing models of red knot population dynamics using simulations and Bayesian model weight updating. This is a novel application of a widely used statistical tool to inform basic ecological understanding and management decisions.
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McGowan, C.P., P. Devers,2011, Managing American black duck populations and habitat at the continental scale: a structured decision making approach. The Wildlife Society Meeting, Kona, HI, November 2011.
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November 2011
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McGowan, C.P., J.E. Hines, J.D. Nichols, J.E. Lyons, D.R. Smith, K. S. Kalasz, L.J. Niles, A.D. Dey, N.A. Clark, P.W. Atkinson, C.D.T. Minton, and W. Kendall. 2011. Demographic consequences of migratory stopover: linking red knot survival to horseshoe crab spawning abundance. 129th Meeting of the American Ornithologists Union, July 2011, Jacksonville, FL, USA.
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July 2011
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McGowan, C.P., J.E. Hines, J.D. Nichols, J.E. Lyons, D.R. Smith, K. S. Kalasz, L.J. Niles, A.D. Dey, N.A. Clark, P.W. Atkinson, C.D.T. Minton, and W. Kendall. 2010, Linking red knot demographics to Delaware Bay horseshoe crab spawning activity within an adaptive management framework. The Wildlife Society Annual Conference, October, 2010, Snowbird, Utah, USA.
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October 2010
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McGowan, C.P., D.R. Smith, J.D. Nichols, J. A. Sweka, J.E. Lyons, L.J. Niles, K. Kalasz, R. Wong, J. Brust, M. Davis, B. Spear. 2012. Integrating migratory shorebird conservation needs into an industrial fisheries management plan in the Delaware Bay. North American Ornithological Congress, Vancouver, B.C., August 2012.
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August 2012
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McGowan, C.P., D.H. Catlin, T.L. Shaffer, C.L. Gratto Trevor, C. Aron, 2013.Establishing endangered and threatened species recovery criteria through simulation modeling. Contributed paper for the Wildlife Society Annual Meeting, October, 2013, Milwakee, WI, USA
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October 2013
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Presents methods for using PVA simulation models to establish recovery criteria in a structure decision making context.
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McGowan, C.P., 2013. Demographic consequences of migration stopover: linking knot populations to horseshoe crab harvest management in Delaware Bay. British Ornithologists Union Annual Conference, Leceister, UK, March 2013
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March 2013
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Describes the integration of science into a management decision context for horseshoe crab harvest in the Delaware Bay.
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McGowan, C. P., P. Devers, 2011, A Structured Decision making approach to managing American black duck populations and habitat at the continental scale. South Eastern Association of Fish and Wildlife Agencies, Nashville, TN, October, 2011.
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October 2012
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McGowan, C. P., 2011, Decision making for incidental take of endangered species, 2011 Adaptive management conference series, Auburn, AL, August 31, 2011.
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August 2011
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McGowan CP, and Lyons JE, 2015, What is structured decision making? Western Hemisphere Shorebird Group 2015 meeting, Wallops Island, VA, USA.
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September 2015
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Presents the concepts of SDM and highlights the urgency and applicability of these tools to shorebird conservation and management.
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McGowan CP, Robinson OJ, Apodaca JJ, 2015, Decision analysis for habitat conservation of a highly endangered range limited salamander. The Wildlife Society Annual Conference, 2015, Winnipeg, CA.
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October 2015
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Applies SDM to habitat conservation decisions for a very rare and range limited salamander.
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McGowan CP, Catlin D, Shaffer T, Gratto Trevor S, Aron C, 2015, Establishing recovery criteria for a threatened population of shorebirds, Western Hemisphere Shorebird Group 2015 Meeting, Wallops Island, VA, USA
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September 2015
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Presents the application of a structure decision making approach to establish recovery criteria for a threatened population of piping plovers. The paper focuses on using models to link measureable attributes to fundamental objectives for recovery.
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Martin, M. M. and E. R. Irwin. January 2009. Population parameters of crayfishes in regulated and unregulated reaches of the Tallapoosa River basin. Spring Meeting of the Southern Division of the American Fisheries Society, New Orleans, Louisiana. Poster.
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January 2009
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Martin, B. and E. R. Irwin. September 2007. Nest success and nesting behavior of redbreast sunfish on the Tallapoosa River, Alabama. 137th Annual Meeting of the American Fisheries Society. San Francisco, California.
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September 2007
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Martin, B. and E. R. Irwin. February 2008. Examination of redbreast sunfish nest survival and spawning behavior below R.L. Harris dam on the Tallapoosa River, Alabama. Alabama Fisheries Association Annual Meeting, Orange Beach, Alabama.
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February 2008
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Martin, B. M. and E. R. Irwin. January 2009. Modeling redbreast sunfish nest survival in the regulated Tallapoosa River, Alabama: defining functional responses to discharge and temperature. Spring Meeting of the Southern Division of the American Fisheries Society, New Orleans, Louisiana.
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January 2009
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Maddux, A. and S. K. Brewer. 2023. Lots of carp but no spawning: the comings and goings of Bighead and Silver carps. Annual Meeting of the Southern Division American Fisheries Society, Norfolk.
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February 2023
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Current research on Bighead Carp <i>Hypophthalmichthys nobilis</i> and Silver Carp <i>Hypophthalmichthys molitrix in </i>the lower Red River conducted from 2021-2022 targeting adult and larval carp found noticeable differences in population demographics compared to other established populations. No juvenile or larval carp were detected during both studies and no successful spawning was observed despite the fish sampled being full of eggs. We discuss knowledge gaps related to spawning and moveme
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M. Clint Lloyd, E. R. Irwin. August 2016. Angler Survey of the Regulated Reaches of the Tallapoosa River Fishery in Eastern Alabama. American Fisheries Society Annual Meeting, Kansas City, MO.
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August 2016
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These survey data inform decision makers relative to satisfaction of anglers in the regulated Tallapoosa River. Anglers are satisfied in general but require better access to the river.
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Lyons JE, Nichols JD, McGowan CP, Smith DR, Sweka JA, Kalasz KS, Clark NA, Dey D, Niles LJ, 2014. Stopover popuation size, migration ecology and adaptive management of red knots at Delaware Bay, USA. American Ornithologist Union Annual Meeting, Estes Park, CO, USA, September 2014
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September 2014
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Presents a new method for estimating population size of stopover population size for migratory shorebirds.
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Lloyd, MC and ER Irwin. February 2017. Age and growth of Channel Catfish pre- and post- flow management below R. L. Harris Dam on the Tallapoosa River, Alabama. Annual Meeting of the Alabama Chapter of the American Fisheries Society.
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February 2017
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Channel catfish are a primary sport fish that are managed below Harris Dam. This analysis indicates no improvement in growth during post-management periods.
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Lloyd, MC and ER Irwin. Age and growth of Channel Catfish populations below R. L. Harris Dam on the Tallapoosa River, Alabama. Annual Meeting of the American Fisheries Society. Tampa, Florida.
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August 2017
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Channel catfish are an important sportfish that are impacted by dam releases. This population model illustrates the life stages contribution to the instability of the population.
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Lloyd, MC and ER Irwin. 2016. Angler Survey of the Tallapoosa River Fishery in Eastern Alabama. Alabama Water Resources Conference
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September 2016
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This paper summarizes data from an angler survey conducted for the conservation agency. The data are important for characterizing fishery aspects below an adaptively managed hydropower dam.
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Lloyd, MC , PC Sakaris, and Irwin E. 2018. Effects of Hydrologic Variation on Dynamics of Channel Catfish Populations Below R. L. Harris Dam on The Tallapoosa River, Alabama. Southern Division American Fisheries Society Spring Meeting, San Juan, Puerto Rico (Invited)
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March 2018
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Channel catfish populations below a hydropeaking dam in Alabama are impacted by regulation of flow and thermal regimes. These data could inform management to satisfy stakeholders interested in viable sport fisheries below the dam.
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Lloyd, C and E Irwin. 2018. Faunal Habitat Linkages for Alabama Barrier Island Restoration Assessment on Dauphin Island, Alabama. Southern Division of the American Fisheries Society Spring Meeting, San Juan, Puerto Rico (oral presentation)
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March 2018
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This project predicts the long-term value of restoration options for Dauphin Island, Alabama. Conservation value will be modeled on a 50 year planning horizon to inform restoration decisions.
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Lai, Q., E. Irwin and Y. Zhang. The Consequences of Increasing Oyster Harvest Size Limit to Provision of Ecosystem Services by Oyster Reefs in Mobile Bay, Alabama. Southeastern Association of Fish and Wildlife Agencies Annual Meeting, Mobile, Alabama.
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October 2018
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This work evaluates harvest size limits for oysters. It is of interest to oyster fishers and regulatory agencies.
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Lai, Q. and E. Irwin. 2016. Development of models for evaluating impacts of Dauphin Island restoration alternatives on oyster fisheries in the Mississippi Sound. Alabama Water Resources Conference. Perdido Beach, Alabama.
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September 2016
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Restoration of Dauphin Island may enhance water quality impacted by Hurricane Katrina and the Deepwater Horizon oil spill. A priori evaluation of effects of restoration alternatives on oyster fisheries is desired by stakeholders. Models to predict impacts of restoration actions to oyster sustainability are demonstrated in this poster.
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Knight, J. and E. R. Irwin. Redeye bass (Micropterus coosae) movement and habitat use in an Alabama Piedmont stream. February 2004. Southern Division of the American Fisheries Society, Spring Meeting, Oklahoma City, Oklahoma.
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February 2004
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Kennedy, KDM and E Irwin. Framing the Problem: Shifting Scope and Scale for a Sustainable Energy Future. 2019 Joint Meeting of the American Fisheries Society and the Wildlife Society. Reno, Nevada.
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September 2019
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This paper introduces a symposium on wildlife and fishery impacts of renewable energy. The work calls for re-framing the problem to broaden landscape scope and include multiple species.
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Kennedy, K.D.M and E. R. Irwin. 2015. Integration of a multi-metric index for informing instream flow criteria decisions in warm water streams. Southern Division American Fisheries Society, Spring Meeting, Savannah, Georgia.
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January 2015
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Multi-metric indices are used extensively in stream assessment but application for decision making is limited. We provide a framework and example for including multi-metric indices in water resource management decision-making.
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Kennedy, K.D. and E.R. Irwin. Making hard decisions about river management:decision analysis for the Tallapoosa River below Harris Dam. Alabama Water Resources Conference. September 2006. Perdido, AL.
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September 2006
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Kennedy, K. D. and E. R. Irwin. November 2007. Occupancy rates of selected shoal-dwelling fishes in the Tallapoosa River basin. Southeastern Fishes Council Annual Meeting. Chattanooga, Tennessee.
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November 2007
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Kennedy, K. D. and E R. Irwin. February 2007. Development of Procedures for Evaluating Dam Operation in the Southeastern United States. Spring Meeting of the Southern Division of the American Fisheries Society, Memphis, Tennessee.
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February 2007
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Kennedy, K. D. and E R. Irwin. (poster) June 2007. Evaluation of conflicting objectives for water resource management: Stakeholder values enhance decision support analysis. Auburn University Water Resources Conference, Auburn, Alabama.
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June 2007
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Kennedy, K. D. M. and E. R. Irwin. January 2009. The Next Step: Evaluating and Applying Adaptive Management Monitoring Data for the Tallapoosa River below R.L. Harris Dam. Adaptive management and structured decision making: helping stakeholders make smart decisions about complicated systems symposium. Spring Meeting of the Southern Division of the American Fisheries Society, New Orleans, Louisiana.
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January 2009
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Keever, A., Ditchkoff, S. McGowan, C.P., Grand, J.B., 2014. Estimating the effects of coyote removal and wild pigs on white-tailed deer abundance. South Eastern Deer Study Group, Athens, GA, February 2014.
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February 2014
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White-tailed deer and an extremely important recreational harvest species but recent coyote range expansion may be suppressing deer recruitment. Our study looks at the effects of coyote control on deer abundance.
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Keever, A., C.P. McGowan, S. Ditchkoff, P. Acker, J. B. Grand, C. Newbolt. 2013 Effect of reducing camera survey efforts on the accuracy of density estimates. South Eastern Deer Study Group, South Carolina, February 2013
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February 2013
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Validates the effectiveness of emerging game camera monitoring techniques using field data on a marked population.
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Katechis, C.T.,P.C. Sakaris and E. Irwin. Methodology for using otoliths to age mooneye, Hiodon tergisus. February 2003. Spring Meeting of the Southern Division of the American Fisheries Society. Wilmington, North Carolina.
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February 2003
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K. J. Fogelman, K. Coffman, J. Archambault, E. Irwin, M. Walsh, S. Brewer, and J. A. Stoeckel. A review of temperature, hypoxia, conductivity, and agricultural contaminant stressors to freshwater mussels. American Malacology Society 2023, Tuscaloosa, Alabama
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August 2023
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The thermal tolerances of many mussels are unknown despite the thermal and hypoxia threats to aquatic biota. Here, we review the current state of our knowledge.
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K. J. Fogelman, K. Coffman, J. Archambault, E. Irwin, M. Walsh, S. Brewer, and J. A. Stoeckel. A REVIEW OF TEMPERATURE AND HYPOXIA STRESSORS TO FRESHWATER MUSSELS. FMCS 2023, Portland, OR
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April 2023
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The thermal tolerances of many mussels are unknown despite the thermal and hypoxia threats to aquatic biota. Here, we review the current state of our knowledge.
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K. D. M. Kennedy and Irwin, E. R. January 2009. Stakeholder involvement: a primary need for successful adaptive management. Adaptive management and structured decision making: helping stakeholders make smart decisions about complicated systems symposium. Spring Meeting of the Southern Division of the American Fisheries Society, New Orleans, Louisiana.
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January 2010
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Jolley, J.C., E.R. Irwin and K.J. Kleiner. Evaluation of a tailwater population of flathead catfish in Alabama. February 2002. Midyear Meeting of the Southern Division of the American Fisheries Society. Little Rock, Arkansas.
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February 2002
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Jolley, J.C. and E.R. Irwin. A comparison of the reservoir and tailwater catfish populations in a section of the Coosa River, Alabama. August 2002. American Fisheries Society 132nd Annual Meeting, Baltimore, Maryland.
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August 2002
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Jolley, J. C., P. C Sakaris., E. R. Irwin and D. Buckmeier. Don't be stuck in the spine age: the evolution of catfish aging techniques North Central Division Catfish Symposium. Annual Conference Midwest Association of Fish and Wildlife Agencies. December 2003. Kansas City, Kansas.
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December 2003
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Jolley, J. C. and E. R. Irwin. Food habits of catfishes in tailwater and reservoir habitats in a section of the Coosa River, Alabama. October 2003. Annual Conference Southeastern Association of Fish and Wildlife Agencies. Mobile, Alabama.
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October 2003
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Jolley, J. C. and E. R. Irwin. Do Giant Catfish Live Below Dams?: Evaluating the Catfish Fishery of the Mid-Coosa River. January 2003. Annual Meeting of the Georgia Chapter of the American Fisheries Society. Rome, Georgia.
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January 2003
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Jolley, J. C. and E. R. Irwin. Catfish population characteristics in tailwater and reservoir habitats of the Coosa River. Catfish 2010: Conservation, Ecology, and Management of Catfish: The Second International Symposium, St. Louis, Missouri
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June 2010
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J. Rogers, S. K. Brewer, S. Sammons, and S. W. Golladay. 2024. Drivers of riverine Shoal Bass and Largemouth Bass movement in the lower Flint River, GA. Annual Meeting of the Southern Division American Fisheries Society, Chattanooga.
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February 2024
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Understanding fish movements is important to managing populations because they reflect changing resource needs throughout the life cycle. Thus, our study objective was to determine the seasonal movement variability of endemic Shoal Bass, <i>M. cataractae, </i>and native Largemouth Bass in the lower Flint River to better understand and manage riverine populations.
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Irwin,E.R. and G. Turner. February 2006. Aquatif GAP of the ACT. Alabama Fisheries Association Annual Meeting. Perdido, Alabama.
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February 2006
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Irwin, Elise R. and Emily Nichols. February 2013. Quantification of the effects of fluctuating discharge on temperature regimes below R. L. Harris Dam. Southern Division AFS Spring Meeting, Nashville, TN.
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February 2013
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This work summarizes the effects of managed flows on discharge and temperature regimes below a hydropeaking facility. Data will be used to determine potential biological effects related to thermal polution below the dam.
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Irwin, Elise R. 2015. Water governance in the Southeast United States: informing decisions regarding water allocation with flow-ecology data. (Oral Presentation) Alabama Water Resources Conference, September 10-11, 2015, Perdido Beach, Alabama,
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September 2015
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This work provides the framework for incorporating flow-ecology hypotheses and data into decision making regarding water allocations. The AL Department of Conservation are interested in these tools to assist with water planning in the State.
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Irwin, ER. Landscape Level Planning: Scaling up the Relevance for Decision Science. Integration and Implementation of Large Landscape Aquatic Conservation Plans: Scaling Local Actions to Regional Outcomes Symposium. American Fisheries Society Virtual Meeting 2020.
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September 2020
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This invited presentation introduces decision science properties to landscape scale conservation planning. Examples of decision science are presented toward framework development for planners.
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Irwin, ER and MC Lloyd. February 2017. Dauphin Island Restoration for Sustainable, Conservation Values. Annual Meeting of the Alabama Chapter of the American Fisheries Society.
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February 2017
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Restoration activities toward sustainable barrier island ecosystems impacts multiple stakeholders. This work describes a decision process that incorporates conservation values and forecasts resilience of restoration scenarios for Dauphin Island, AL.
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Irwin, ER and J Terhune. 2016. Teaching Problem Solving Skills to the Next Generation of Natural Resources Professionals: A Proposed Framework. Alabama Water Resources Conference, Gulf Shores, Alabama.
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September 2016
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Employers of natural resource professionals rank problem solving skills as the number one trait needed by their employees. We describe a framework for teaching problem solving skills to students in natural resources to better prepare them for the workplace.
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Irwin, E.R., R.L. Noble and J.R. Jackson. A reservoir landscape for age-0 largemouth bass. August 2000. Black Bass 2000 Symposium. St. Louis, Missouri.
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August 2000
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Irwin, E.R., M.C. Freeman, and J. Peterson. Using adaptive management to quantify biological, environmental and social uncertainty affecting the management of tailwater ecosystems. August 2002. Sport Fisheries in Tailwaters Symposium. American Fisheries Society 132nd Annual Meeting. Baltimore, Maryland.
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August 2002
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Irwin, E.R., M.C. Freeman, and J. Peterson. Results of the decision support model for determining optimal flows below Harris Dam. December 2001. Harris Dam Stakeholders Meeting. Sponsored by Alabama Department of Conservation and Natural Resources. Wedowee, Alabama.
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December 2001
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Irwin, E.R., J. Peterson, M.C. Freeman, B.J. Freeman and L. Kramer. Aquatic GAP in the Tallapoosa River Basin, Alabama and Georgia. June 2002. National GAP Annual Meeting; U.S. Geological Survey. Shepardstown, Maryland.
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June 2002
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Irwin, E.R. and M.C. Freeman. What is good for the duck is good for the darter: adaptive flow management. August 2000. Joint U.S. Geological Survey/U.S. Fish and Wildlife Service Workshop on Federal Energy Resource Commission re-licensing issues. McCormick, South Carolina.
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August 2000
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Irwin, E.R. and M.C. Freeman. Modeling uncertainty in the Tallapoosa River below R.L. Harris Dam. May 2002. Harris Dam StakeholdersMeeting. Sponsored by Alabama Department of Conservation andNatural Resources. Alexander City, Alabama.
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May 2002
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Irwin, E.R. and M.C. Freeman. Defining functional relations between aspects of flow and fishes. August 2000. Joint U.S. Geological Survey/U.S. Fish and Wildlife Service Workshop on Federal Energy Resource Commission re-licensing issues. McCormick, South Carolina.
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August 2000
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Irwin, E.R. and M.C. Freeman. Adaptive management:a win-win scenario for managing the Tallapoosa River below R.L. Harris Dam. August 2000. Public Forum on Adaptive Management of the Tallapoosa River. Wadley, Alabama.
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August 2000
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Irwin, E.R. and K.D.M. Kennedy. 2015. Long term monitoring of dynamic occupancy of shoal dwelling fishes in the Tallapoosa River basin. American Fisheries Society 145th Annual Meeting, Portland, Oregon.
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August 2015
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This presentation will be in a Large Rivers Monitoring Symposium. We will describe our occupancy approach for long term monitoring of a fish community below a large dam.
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Irwin, E.R. and B. M. Martin. September 2011. Video Surveillance of Spawning Fish: Real-Time Peeps into Nesting Behavior. In: One Fish, Two Fish: Using Fixed Electronic Fish Counting Systems for Real Time Monitoring of Freshwater Species Symposia. American Fisheries Society 141st Annual Meeting. Seattle, Washington.
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September 2011
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Irwin, E.R. and A.M. Ferrara. Garfish:Biology and Management. March 2000. Sabine National Wildlife Refuge Lecture Series. Hackberry, Louisiana.
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March 2000
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Irwin, E.R. Inquiring minds want to know: what's going on downstream of Thurlow Dam. August 2002. Tallassee Town Meeting. Sponsored by Alabama Department of Conservation and Natural Resources. Tallassee, Alabama.
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August 2002
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Irwin, E.R. How to get into graduate school and what to do when you get there. February 2000. American Fisheries Society Student Workshop. American Fisheries Society Southern Division Meeting. Savannah, Georgia.
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February 2000
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Irwin, E.R. Flathead catfish:status and management in Alabama. March 2000. U.S. Geological Survey Flathead Catfish Workshop. McCormick, South Carolina.
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March 2000
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Irwin, E.R. Defining ecological and economical hydropower operations: a framework for managing dam releases to meet multiple conflicting objectives . To be submitted to: 1st International Symposium on Energy Challenges and Mechanics. Aberdeen, Scotland, UK.
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July 2014
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This presentation will describe the application of ARM for managing flows at dams for multiple conflicting objectives. Implementation and evaluation of the framework will be presented.
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Irwin, E.R. September 2007. Adaptive management and decision support analysis for conservation of imperiled fishes. Imperiled Species Ecology and Management Symposium. Spring Meeting of the Southern Division of the American Fisheries Society, Memphis, Tennessee.
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February 2007
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Irwin, E.R. August 2016. Water Allocation in the Southeast: Stakeholder Governance and Decision Making. American Fisheries Society Annual Meeting. Kansas City, MO
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August 2016
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This is the description of an structured decision making framework for stakeholder driven flow allocation problems. Use of various tools add to the transparency for solving multi-objective optimized water allocation problems.
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Irwin, E. R., M. C. Freeman and J. Peterson. How to decide where to start: decision models for adaptive flow management. February 2001. Harris Dam Stakeholders Meeting. Wedowee, Alabama.
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February 2001
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Irwin, E. R., K. D. M. Kennedy, V. Herr and B. Boston. May 2010. Facilitation and Decision Support Technology for Adaptive Management. 4th Environmental Conflict Resolution Conference, Tucson, Arizona. INVITED
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May 2010
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Irwin, E. R., J. Peterson, B. J. Freeman, E. Kramer, and M. C. Freeman. Aquatic GAP: Regional Analysis of Biodiversity in the Tallapoosa River Basin. September 2003. Alabama Water Resources Conference. Orange Beach, Alabama
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September 2003
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Irwin, E. R., J. Peterson, B. J. Freeman, E. Kramer, and M. C. Freeman. Aquatic GAP: Regional Analysis of Biodiversity in the Tallapoosa River Basin. February 2003. Southeast Regional GAP Meeting. Athens, Georgia.
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February 2003
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Irwin, E. R., J. Knight and T. Goar. 2013. Movement, and Habitat Selection of Redeye Bass (Micropterus coosae) from the Regulated Tallapoosa River and Hillabee Creek (Alabama, USA). Black Bass Symposium. Southern Division AFS Spring Meeting, Nashville, TN.
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February 2013
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This study contributes movement and habitat use/availability data for redeye bass, an important sportfish for which we have limited life history data. Findings are placed in the context of management of flow regimes to enhance habitats for the species.
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Irwin, E. R., A. M. Ferrara, K. D. M. Kennedy, P. C. Sakaris, and R. Campbell. January 2009. Alligator gar conservation in the southeast United States: development of a decision tool for evaluating effects of management on population viability. Spring Meeting of the Southern Division of the American Fisheries Society, New Orleans, Louisiana.
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January 2009
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Irwin, E. R. and M. C. Freeman. Minnows in the moonlight. January 2001. Annual Review for Alabama Department of Conservation and Natural Resources Federal Aid Projects. Auburn, Alabama.
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January 2001
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Irwin, E. R. and M. C. Freeman. Fishes of the Dead River and Terrapin Creek. January 2003. Annual Meeting of the Georgia Chapter of the American Fisheries Society. Rome, Georgia.
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January 2003
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Irwin, E. R. and K. D. M. Kennedy. January 2011. Conservation of four darter species in response to adaptive flow management in the Tallapoosa River below Harris Dam. Conservation of Darters Symposium. Southern Division of the American Fisheries Society, Tampa, Florida. INVITED
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January 2011
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Irwin, E. R. and K. D. M. Kennedy. February 2010. Evaluation and development of tools to estimate large-river ecological integrity. Spring Meeting of the Southern Division of the American Fisheries Society, Asheville, NC
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February 2010
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Irwin, E. R. and E. K. Nichols. Consequences of an altered thermal regime to warmwater fishes below R. L. Harris Dam, Tallapoosa River, Alabama, USA. 144th Meeting of the American Fisheries Society. Quebec City, Quebec, Canada.
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August 2014
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This paper provides an overview of effects of thermal regime on fish spawning requirements below a dam. The results are being used to set flow targets in an adaptive management project.
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Irwin, E. R. Why catfish are better than bass: a research perspective. February 2004. Ecology and Management of Catfishes Symposium. Southern Division of the American Fisheries Society, Spring Meeting, Oklahoma City, Oklahoma.
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February 2004
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Irwin, E. R. 2015. Monitoring of temperature in warmwater streams: challenges and applications for decision making. Southern Division of the American Fisheries Society, Savannah, Georgia.
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January 2015
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Suitable instream temperature regimes are critical for stream ecosystem function. Using a decade of temperature data, I describe methods and modelling techniques to use temperature data in a decision framework.
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Irwin, E. R. and K. D. M. Kennedy. September 2008. Engaging stakeholders for adaptive management. Interagency Conference on Watersheds. Estes Park, Colorado.
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September 2008
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Irwin, E. R. September 2008. Alligator gar conservation: perspectives and future directions. II International Lepistosidae Congress. Heredia, Costa Rica.
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September 2008
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Irwin, E. R. March 2009. Human Dimensions, Stakeholder Involvement and Objective Setting, Adaptive Management Conference Series, Athens, Georgia.
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March 2009
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Irwin, E. R. March 2008. Adaptive management of a regulated river: sound science for stakeholders. United States Geological Survey Seminar Series. USGS Headquarters, Reston, Virginia
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April 2008
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Irwin, E. R. February 2009. Using Bayesian Belief Networks as Decision Support Tools for Conservation Planning. USFWS Southeast Region Biologist’s Conference. Confronting 21st Century Challenges: Strategic Habitat Conservation. Callaway Gardens, Pine Mountain, Georgia.
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February 2009
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Irwin, E. R. February 2008. Healthy wetlands-healthy people. Plenary Session. World Wetlands Day, UNA, Heredia, Costa Rica
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February 2008
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Irwin, E. 2016. Instream flows in Alabama: informing decisions regarding water allocation with science-based assessment. Alabama-Georgia AFS Chapter Meeting. Columbus, Georgia. February 2016
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February 2016
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Instream flow decisions are pending for the State of Alabama. This paper discusses application of science-based frameworks for water allocation.
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Irwin ER, P Kocovsky, J Jolley and D Chapman. Grass Carp Invasion in the Colorado River: Predicting the Consequences of Potential Management Actions in the Face of Uncertainty. 2019 Joint Meeting of the American Fisheries Society and the Wildlife Society. Reno, Nevada.
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September 2019
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This paper describes the problem of grass carp invasion in the Colorado River and its impacts on native fishes. A conceptual ecological model with prediction horizons is presented to begin to define uncertainties inherent in the problem.
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Irwin ER, MC Freeman, JT Peterson, MC Lloyd, K Ouellette, KDM Kennedy. 2018. Long-Term Adaptive Management of Flows Below a Hydropeaking Dam. Southern Division American Fisheries Society, San Juan, Puerto Rico (Invited)
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March 2018
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This long-term study includes multiple stakeholder with different objectives regarding management of flows from a hydropeaking dam. Findings regarding the attainment of their objectives will be discussed.
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Irwin ER, MC Freeman, JT Peterson, MC Lloyd, K Ouellette, KDM Kennedy. Ecological Responses Associated with Long-Term Adaptive Management of Flows Below a Hydropeaking Dam
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August 2018
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This long-term study includes multiple stakeholder with different objectives regarding management of flows from a hydropeaking dam. Findings regarding the attainment of their objectives and key uncertainties will be discussed.
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Henry, T.B., E.R. Irwin, J.M. Grizzle, D.D. Black, M.L. Wldhaber, and W.G.Brumbragh. Abandoned coal mines:toxicity of an acid mixing zone and remediation of AMD. November 2001. Society of Environmental Toxicology and Chemistry Annual Meeting, Baltimore, Maryland.
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November 2001
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Hayer, C.A., L.Roy, K. Kleiner, M.Ross, E. Irwin and M. Freeman. Conservation status of fish and other aquatic resources in the upper Tallapoosa River system, Alabama. February 2003. Spring Meeting of the Southern Division of the American Fisheries Society. Wilmington, North Carolina.
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February 2003
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Hayer, C. A. and E. R. Irwin. Detection Probability Models for Selected Fishes in the Mobile River Basin, Alabama. February 2004. Southern Division of the American Fisheries Society, Spring Meeting, Oklahoma City, Oklahoma.
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February 2004
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Gunn, J.C., L.K. Berkman, S. Brewer, J.M. Long, A.T. Taylor, and L.S. Eggert. 2020. Harnessing genomics for conservation of the endemic Neosho Smallmouth Bass in the central Interior Highlands. Ecological Society of American annual meeting, Salt Lake City, Utah.
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August 2020
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We conducted double-digest restriction enzyme associated DNA sequencing to genotype over 127,000 single nucleotide polymorphisms (SNPs) for 64 Neosho Smallmouth, 24 Northern Smallmouth, and 4 Spotted Bass (outgroup) distributed across the central Interior Highlands. We found strong differentiation between the Neosho Smallmouth Bass and Northern Smallmouth Bass in the central Interior Highlands and, within the Neosho native range, we found complex patterns of population structure, identifying tw
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Gunn, J.C., L.K. Berkman, A.T. Taylor, J.B. Koppelman, S. Brewer, J.M. Long, T.N. Volkers, E. Sterling, M. Moore. and L.S. Eggert. 2022. Divergence, admixture, and fitness in the Smallmouth Bass (Micropterus dolomieu). Missouri Natural Resources Conference, Lake of the Ozarks.
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February 2022
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The Neosho Smallmouth Bass (<i>Micropterus dolomieu velox</i>), one of two recognized subspecies, is restricted to the Arkansas River Basin (ARB), but non-native Northern Smallmouth Bass (<i>M. d. dolomieu</i>) has been widely introduced for angling. We show these subspecies to be independent lineages that have hybridized, possibly generating fitness differences between ancestral and admixed populations.
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Gomez-Maldonado, S., M.T. McDonough, J.J. Valente, M.D. Smith, and S.S. Ditchkoff. 2023. Effect of trapping on spatial dynamics of wild pigs in southeastern Alabama. Southeastern Association of Fish and Wildlife Agencies annual meeting, Corpus Christi, Texas.
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October 2023
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Little is known about how control methods impact behavior and movement of invasive wild pigs. Results from this research will help improve control and eradication efforts, particularly in the presence of outbreaks of infectious diseases.
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Goldhaber, M.B., J.R. Hatch, L. Lee, E.R. Irwin, A. Grosz, J.B. Atkins, D.D.Black, H.Zappia,J.C. Pashin, R.F. Sanzolone, L.F. Ruppert, A. Kolker, R.B. Finkelman, H.E.Bevins. The Life Cycle of Potentially Toxic Trace Elements in AppalachianBasin Coal. October 2001. USGS Appalachian Region Science Workshop. Gatlinburg, Tennessee.
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October 2001
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Goldhaber, M.B., J.R. Hatch, E.C. Callender, E.R. Irwin, M.L. Tuttle, R.A. Ayuso, L. Lee, J.M.Morrison, A. Grosz, J.B. Atkins, D.D. Black, H. Zappia, J.C. Pashin, S.F.Diehl, R.F. Sanzolone, L.F. Ruppert, A. Kolker, R.B. Finkelman, and H.E.Bevins. Impact of elevated arsenic in coal on the geochemical landscapeof the eastern U.S. Sizth International Symposium on the Geochemistry of theEarth's Surface (GES-6), Honolulu, Hawaii.
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March 2002
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Goldhaber, M.B., E.R. Irwin, J.Brian Adkins, R.Lee, H. Zappia, D.Black, and R.B. Finkelman. Environmental impact of elevated arsenic in Southern Appalachian Basin coals. May 2000. Metal Ions in Biology and Medicine Conference. San Juan, Puerto Rico.
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May 2000
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Gerken, C.N. and e. R. Irwin. 2015. Influence of river conditions on angler catch rates on the Tallapoosa River, Alabama. Oral Presentation, Southern Division, American Fisheries Society Spring Meeting, Savannah, Georgia.
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January 2015
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This summarizes data relative to angler catch rates to inform future management decisions on a regulated river. Findings are relevant to flow and temperature modification scenario identification.
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Gerken, C and E. Irwin. 2014. Quantification of the fishery resources below R. L. Harris Dam using hook and line assessment techniques. Alabama Water Resources Conference, Gulf Shores, Alabama.
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September 2014
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The objective of this research is to inform decision making by stakeholders relative to the fishery below a dam. These data will assist partners with assessment of highly valued resources.
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G Forrester, J Rogers, S Sammons and S. K. Brewer. 2024. Factors related to successful hatching and daily growth rate of Shoal Bass Micropterus cataractae and Largemouth Bass M. salmoides in the lower Flint River catchment. Annual Meeting of the Southern Division American Fisheries Society, Chattanooga.
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February 2024
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Knowledge of spawning dynamics over multiple years will provide information useful to agencies concerned about recruitment success in populations. Our study objective was to determine hatch timing and growth of both species as related to discharge patterns and water temperature.
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Freeman, M.C., E.R. Irwin and B.J. Freeman. Native fishes below dams:working with what we have. February 2000. Joint Southern Rivers Council and American Fisheries Society Symposium. American Fisheries Society Southern Division Meeting. Savannah, Georgia.
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February 2000
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Freeman, M.C., E. R. Irwin (presenter), N. M. Burkhead, B. J. Freeman and H. L. Bart. STatus and conservation of the fish fauna of the Alabama River system. August 2001. Invited presentation in the Changes in fish community structure in large usa rivers: status of native species, research, and management symposium. American Fisheries Society 131st Annual Meeting. Phoenix, Arizona.
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August 2001
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Freeman, M.C. and E.R. Irwin. Conserving Stream Fishes in a Rapidly ChangingWorld. When the water runs dry:maintaining a balance between human water use and environmental Needs. September 2002. Sponsored by the Gulf RestorationNetwork, New Orleans, Louisiana.
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September 2002
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Forrester, G., J. L. Rogers, S. K. Brewer, S. M. Sammons, and S. W. Golladay. 2023. Factors related to successful hatching of Shoal Bass Micropterus cataractae and Largemouth Bass Micropterus salmoides in the lower Flint River catchment. Annual Meeting of the Georgia American Fisheries Society, St. Simons Island.
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February 2023
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Changes in environmental factors have important implications for the successful completion of life history for stream fishes including Shoal Bass<i> Micropterus cataractae </i>and Largemouth Bass <i>M. salmoides</i> Our study objective was to determine how flow and temperature patterns affect hatch timing of both species using otolith daily bands to back calculate hatch dates.
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Fogelman, Kaelyn J., Susan Fuller, Jennifer Archambault, Elise Irwin, Maureen Walsh, Shannon Brewer, and James A. Stoeckel. A Review Of Temperature, Hypoxia, And Other Water Quality Stressors To Freshwater Mussels. Alabama Water Resources Conference, September 2023
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September 2023
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This literature search summarizes existing lethal and sublethal effects of temperature and hypoxia on unionids by life stage and taxonomy, discusses ecological and climate change implications of existing water quality stressor data, and identifies needs for future research and methodological standardization.
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Fogelman, K, J. A. Archambault, E. Irwin, M. Walsh, S. Brewer, and J. A. Stoeckel. 2022. A review of North American freshwater mussel lethal thermal tolerance. Joint Aquatic Sciences Meeting, Grand Rapids.
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May 2022
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The thermal tolerances of many mussels are unknown despite the thermal threats to aquatic biota. Here, we review the current state of our knowledge.
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Farrell, P., Grand, J.B., McGowan, C.P., E. Lonsdorf, Relationship of Grassland Bird Occupancy to Local and Landscape Scale Habitat Features in the East Gulf Coastal Plain, The wildlife Society, 2014
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October 2014
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Presents multi-season occupancy modeling results for grassland birds in relation to landscape scale habitat covariates.
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Farrell, P., Grand, J.B., McGowan, C.P., E. Lonsdorf, Effects of Habitat Configuration and Composition on Grassland Bird Occupancy in the Upper East Gulf Coastal Plain, SEAFWA, 2014
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October 2014
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Presents research on land-scape scale correlates of grassland bird occupancy.
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Farrell, P, Grand, J.B., McGowan, C.P. 2014. Habitat Associations of Grassland Birds in the East Gulf Coastal Plain Region. South Eastern Natural Resources Graduate Student Symposium, Starkville, MS. March 2014
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March 2014
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Estimates occupancy for grassland specialists and generalists from point count data.
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Farrell P, McGowan CP, Grand JB, Lonsdorf EV, Thogmartin WE. 2015. Utility of the North American Breeding Bird Survey to predict habitat relationships of grassland birds using prior knowledge from a small scale study. The Wildlife Society Annual Conference, 2015, Winnipeg, CA.
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October 2015
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Explores the novel use of BBS data on bird presence absence to inform land management decision model.
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E. Merritt, C.P. McGowan, D.R. Smith, M. Catalano, Evaluating the Efficacy of the Mark-Recapture Approach for Estimating Delaware Bay Horseshoe Crab Abundance, The Wildlife Society, 2014
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October 2014
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Research on the practicality of using mark recapture data and analyses to monitor horseshoe crab population abundance in Delaware Bay.
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E. Merritt, C.P. McGowan, D.R. Smith, M. Catalano, Estimating Delaware Bay Horseshoe Crab Abundance Using Mark-Recapture, SEAFWA, 2014
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October 2014
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Reports on horseshoe crab abundance estimation using MArk recapture in Delaware Bay.
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Dykes, W.,E.R. Irwin, and K.D. Kennedy. June 2006. Adaptive management for the middle Tallapoosa River. 2006 American Water Resources Association Summer Specialty Conference:Adaptive Management of Water Resources, Missoula, Montana.
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June 2006
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Duarte, A., A. Thomas, D. Lesmeister, J. Peterson, J.J. Valente, J. Jenkins, M. Gostin, M. Betts, M. Weldy, and Z. Ruff. 2023. Exploring the use of bioacoustic surveys to detect marbled murrelets in forest habitats. The Wildlife Society Annual Meeting, Louisville, KY.
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November 2023
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Terrestrial breeding habitat for endangered Marbled Murrelets is dwindling, and monitoring activity at potential inland breeding sites is expensive. Our work is helping to develop automated recording systems that will provide a more efficient method to monitor murrelets on their breeding grounds.
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D Bryant, S. K. Brewer. 2024. Habitat use by buffalofishes Ictiobus bubalus, I. cyprinellus, and I. niger in the lower Red River catchment. Annual Meeting of the Southern Division American Fisheries Society, Chattanooga.
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February 2024
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Buffalofishes are long-lived catostomids that are widely distributed in North America. Conservation and management plans for non-game fishes can benefit from examination of multi-scale habitat use due to their understudied nature and distributions that extend beyond political boundaries. We examined habitat use by three sympatric species of buffalofishes in the Red River catchment over three years (April-Sept).
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Cunha, A., and E.R. Irwin. Riverine landscapes:Floodplain connectivity and early life history stages of fishes. June 2000. 2000 Meeting of the Society of Conservation Biology. Missoula, Montana.
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June 2000
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Counihan, T. D and 7 co-authors. 2015. Assessing trends in fish communities within and between several large US river systems. American Fisheries Society 145th Annual Meeting, Portland, Oregon
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August 2015
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This work is the summary of a collaborative effort to address similarities and trends among fish communities in five large river basins. The effort highlights sampling design and protocols and specific analyses for the monitoring data.
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Coffman KMO, R Ramesh, S Blomquist, M Walsh, S Miller, H Bulger and E Irwin. Engaging Governmental and Private Stakeholders to Implement and Maintain Adaptive Management Projects – Challenges and Accomplishments. 2019 Joint Meeting of the American Fisheries Society and the Wildlife Society. Reno, Nevada.
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September 2019
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We describe stakeholder engagement using two examples that enhance both technical communication with laypersons and expert scientists. Promises and pitfalls are discussed to inform future interactions.
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Butler, C. A., D.R. Smith, C.P. McGowan, J. B. Grand, 2012. Estimating tag loss of the Atlantic Horseshoe crab, Limulus polyphemu, using a multi-state model. Contributed Poster, Ecological Society of America, Portland, OR, August, 2012.
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August 2012
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Bryant, D. and S. K. Brewer. 2023. Population Demographics of three Bufallofishes in the lower Red River. Annual Meeting of the Southern Division American Fisheries Society, Norfolk.
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February 2023
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Smallmouth Buffalo <i>Ictiobus bubalus</i>, Bigmouth Buffalo <i>I. cyprinellus</i>, and Black Buffalo <i>I. niger</i> are long-lived fishes that are harvested by commercial and bow fishers throughout their distribution in North America; yet we know surprising little about their ecology. We investigated the age structure of populations in the lower Red River catchment in Oklahoma, Texas, and Arkansas.
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Brewer, S., B. Birdsall, J. Dattilo, D. DeVries, and P. Ramsey. 2023. Occupancy and demographics of Bighead and Silver carps in the lower Red River catchment. American Fisheries Society Annual Meeting, Grand Rapids.
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August 2023
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Carp were first detected in the lower Red River catchment of Texas, Oklahoma, and Arkansas around 2012. With little information on this population, we aimed to 1) determine the hierarchical factors related to occupancy during the warm-water season, and 2) assess population demographics and reproduction by both species.
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Brewer, S. K., M. Wedgeworth, and R. Mollenhauer. 2022. Flow patterns drive Prairie Chub Machrybopsis australis distribution, but salinity is a determinant of abundance. Annual Meeting of the Southern Division of the American Fisheries Society.
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January 2022
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Great Plains pelagophils have rapidly declined over time. Pelagic broadcast spawning cyprinids were once widespread but their distributions have presumably become truncated and their abundance reduced. The Prairie Chub <i>Machrybopsis australis </i>is endemic to the upper Red River basin of Oklahoma and Texas. We modeled the hydrologic relationships across multiple scales to understand how flow relates to distribution and determine the factors driving abundance.
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Brewer, S. K., B. Birdsall, P. Ramsey, D. Devries, and J. Dattilo. 2023. Understanding new invasions by Bighead Carp Hypophthalmichthys nobilis and Silver Carp Hypophthalmichthys molitrix: Drivers of occupancy and recruitment. Alabama Water Resources Conference, Orange Beach.
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September 2023
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Two emblematic invasive fishes, Bighead Carp <i>Hypophthalmichthys nobilis,</i> and Silver Carp <i>Hypophthalmichthys molitrix</i> were first introduced for management purposes (i.e., algal control in aquaculture ponds and wastewater treatment facilities) but quickly spread throughout the Mississippi River catchment and have continued to invade connected catchments. We determined occupancy relationships and assessed recruitment in a newly invaded catchment.
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Brewer, S. K. et al. 2024. Spatial and temporal variability in successful hatching by Micropterus and Lepomis spp. American Fisheries Society Annual Meeting, Honolulu.
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September 2024
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Survival during the first year of life is key to the success of fishes in river ecosystems. We used a hurdle model framework to analyze the hatch success of five species of <i>Micropterus </i>and <i>Lepomis</i> from several different catchments.
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Black, D.D., E.R. Irwin and J. Peterson. Development of a rapid bioassessmenttechnique for characterizing streams impacted by acid mine drainage. August 2002.American Fisheries Society 132nd Annual Meeting, Baltimore, Maryland.
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February 2002
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Black, D. D. and E. R. Irwin. A rapid bioassessment technique for warmwater streams impacted by acid mine drainage in north Alabama. February 2001. Midyear Meeting of the Southern Division of the American Fisheries Society. Jacksonville, Florida.
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February 2001
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Birdsall, B. and S. K. Brewer. 2022. Comparing ageing structures of Bighead Carp Hypophthalmichthys nobilis and Silver Carp Hypophthalmichthys molitrix. Annual Meeting of the Southern Division of the American Fisheries Society.
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January 2022
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Bighead Carp <i>Hypophthalmichthys nobilis</i> and Silver Carp <i>Hypophthalmichthys molitrix</i> are two invasive species for which limited information is available on which structure is most appropriate for age and growth analyses. We evaluated the precision of pectoral fin-rays, postcleithra, the urohyal bone, and lapilli otoliths for estimating age of these species.
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Birdsall, B. D., S. K. Brewer, and D. DeVries. 2023. Habitat use by Bighead Carp Hypophthalmichthys nobilis and Silver Carp Hypophthalmichthys molitrix in the lower Red River catchment. Annual Meeting of the Southern Division American Fisheries Society, Norfolk.
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February 2023
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Bighead Carp <i>Hypophthalmichthys nobilis</i> and Silver Carp <i>Hypophthalmichthys molitrix</i> are two invasive fishes, and their habitat use has been documented in portions of the central United States; however, new invasion fronts have occurred in novel river catchments that possess different physicochemical conditions. We assessed Bighead Carp and Silver Carp summer habitat use within an occupancy framework across reaches nested within river segments and catchments.
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Aspinwall, A. and E. Irwin. 2015. Evaluation of management alternatives for Gulf Striped Bass populations using stochastic matrix models. Southern Division of the American Fisheries Society Spring Meeting, Wheeling, West Virginia.
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February 2016
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This modeling approach is evaluating impacts of management actions on Gulf striped bass populations. Partners are using the results to implement change in management strategy.
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Aspinwall, A. and E. Irwin 2015. Using Population Models to Evaluate Management Alternatives for Gulf-Strain Striped Bass. (oral presentation) Alabama Water Resources Conference. Perdido Beach, Alabama.
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September 2015
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This population model is in development to inform USFWS and 3 states how to set population objectives for striped bass in the ACF. The model will be incorporated into the management Committee's structured decision model.
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Aspinwall, A and E. Irwin. 2014. Initial evaluation of the influence of stocking and habitat on early survival of Gulf-strain striped bass in the ACF. Alabama Water Resources Conference, Gulf Shores, Alabama
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September 2014
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Population models for Gulf-strain striped bass have been constructed to inform partners about stocking programs. We are evaluating carrying capacity and survival of stocked fish for State agencies.
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Aspinwall, A and E Irwin. 2016. Evaluation of Management Alternatives for Gulf Striped Bass. Joint Meeting of the Georgia and Alabama Chapters of the American Fisheries Society, Columbus, Georgia.
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February 2016
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This work is providing an assessment of management strategies for long-term planning relative to stocks of Gulf striped bass. Models have been developed for assistance in decision making.
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Apinwall, A. P. and E. R. Irwin. 2015. Evaluation of the effect of stocking rates and nursery habitat on early survival of Gulf- strain striped bass in the Apalachicola- Chattahoochee-Flint River system. Southern Division of the American Fisheries Society Spring Meeting, Savannah, Georgia.
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January 2015
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These data are the first in a series of population models that we are developing for the GSB committee. The models suggest that carrying capacity has not been reached through stocking programs.
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Andress,R.O., K.Kleiner,and E.R.Irwin. Effects of highly fluctuating flows on nest success of redbreast sunfish in the Tallapoosa River, Alabama. February 2000. Alabama Fisheries Association Annual Meeting. Rogersville, Alabama.
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February 2000
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Andress, R.O., K. Kleiner, and E. R. Irwin. Effects of highly fluctuating flows on nest success of redbreast sunfish in the Tallapoosa River, Alabama. February 2000. Southern Division of the American Fisheries Society. Savannah, Georgia.
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February 2000
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Abubakar, S.K., L. Narine, and J.J. Valente. (2024). Effects of local-scale land management decisions on progress toward regional wildlife habitat targets. 109th Annual Meeting of the Ecological Society of America, Long Beach, CA.
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August 2024
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Our findings demonstrate that fine-scale habitat management decisions have been effective for achieving targeted outcomes for supporting biodiversity at a regional scale. This implies that desired landscape-level properties can emerge from bottom-up decision making.
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A. Maddux, J. Dattilo, and S. K. Brewer. 2024. Movement patterns of Bighead Carp Hypophthalmichthys nobilis and Silver Carp Hypophthalmichthys molitrix in the Lower Red River. Annual Meeting of the Southern Division American Fisheries Society, Chattanooga.
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February 2024
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The ability for some individuals within a population to move long distances in challenging environments is a common trait among invasive species such as Bighead Carp <i>Hypophthalmichthys nobilis</i> and Silver Carp <i>Hypophthalmichthys molitrix</i>.Using acoustic telemetry, we determined movement patterns of Bighead and Silver carps during the spring and summer seasons.
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Lai,Q.T., E. R. Irwin and Y. Zhang. Quantifying harvestable fish enhancement and their economic values from oyster reefs in Mobile Bay, Alabama. Annual Meeting of the American Fisheries Society. Tampa, Florida.
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August 2017
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Ecosystem services are rarely quantified on an economic basis. This research illustrates the fiscal benefit of oyster reefs to fish production and harvest.
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