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

Pennsylvania Staff Member


Dr. Tyler Wagner

ASSISTANT UNIT LEADER
TYLER WAGNER

Assistant Unit Leader
Phone: (814) 865 - 6592
Email: txw19@psu.edu

Education

  • Ph D Michigan State University 2006
  • MS University of Idaho 2000
  • BS University of Idaho 1999

Biography

I received my PhD from the Department of Fisheries and Wildlife at Michigan State University (MSU). Upon completion of my PhD I served as a postdoctoral researcher at the Quantitative Fisheries Center (located at MSU). The primary focus of the my research is on linking fine-scale lab and field studies within a macrosystems theoretical framework to understand ecological patterns and processes in aquatic systems across broad spatial and temporal scales.

Research Publications Publication Date
Zabel, R.W., T. Wagner, J.L. Congleton, S.G. Smith, and S.G. Williams. 2005. Survival and selection of migrating salmon from capture-recapture models with individual traits. Ecological Applications 15:1427-1439. December 2005
Yuan, S., J. Zhou, P-N., Tan, E. Fergus, T. Wagner, and P.A. Soranno. 2017. Multi-Level Multi-Task Learning for Nested Geospatial Data. The IEEE International Conference on Data Mining series (ICDM). May 2018
White, S.L., W.L. Miller, S.A. Dowell, M.L. Bartron, and T. Wagner. Accepted. Limited hatchery introgression into wild brook trout (Salvelinus fontinalis) populations despite reoccurring stocking. Evolutionary Applications. December 2018
White, S.L., T. Wagner, C. Gowand, and V.A. Braithwaite. 2017. Can personality predict individual differences in brook trout spatial learning ability? Behavioural Processes 141:220-228. September 2016
White, S.L., E.M. Hanks, and T. Wagner. 2020. A novel quantitative framework for riverscape genetics. Ecological Applications. https://doi-org.ezaccess.libraries.psu.edu/10.1002/eap.2147 May 2020
White, S.L., D.A. DeMario, L.R. Iwanowicz, V.S. Blazer, and T. Wagner. 2020. Tissue distribution and immunomodulation in channel catfish (Ictalurus punctatus) following dietary exposure to polychlorinated biphenyl Aroclors and food deprivation. Int J Environ Res Public Health: 17(4). pii: E1228. doi: 10.3390/ijerph17041228 February 2020
White, S.L., B.C. Kline, N.P. Hitt, and T. Wagner. 2019. Individual behaviour and resource use of thermally stressed brook trout Salvelinus fontinalis portend the conservation potential of thermal refugia. Journal of Fish Biology 95:1061-1071. September 2019
White, S.L. and T. Wagner. 2020. Behavior at short temporal scales drives dispersal dynamics and survival in a metapopulation of brook trout (Salvelinus fontinalis). Freshwater Biology. November 2020
White, S., E. Faulk, C. Tzilkowski, A.S. Weber, M. Marshall, and T. Wagner. 2020. Predicting fish species richness and habitat relationships using Bayesian hierarchical multispecies occupancy models. Canadian Journal of Fisheries and Aquatic Sciences 77:602-610. January 2020
White, S., D. DeMario, L. Iwanowicz, V. Blazer, and T. Wagner. 2020. Tissue distribution and immunomodulation in channel catfish (Ictalurus punctatus) following dietary exposure to polychlorinated biphenyl Aroclors and food deprivation. Int J Environ Res Public Health: 17(4). pii: E1228. doi: 10.3390/ijerph17041228 February 2020
Wagner, T., and J.L. Congleton. 2004. Blood-chemistry correlates of nutritional condition, tissue damage, and stress in migrating juvenile chinook salmon (Oncorhynchus tshawytscha). Canadian Journal of Fisheries and Aquatic Sciences 61:1066-1074. December 2004
Wagner, T., and J.A. Sweka. 2011.Evaluation of hypotheses for describing temporal trends in Atlantic salmon parr densities in Northeast U.S. Rivers. North American Journal of Fisheries Management 31:340–351. | Abstract May 2011
Wagner, T., and 7 coauthors. 2010. Spatial and temporal dynamics of lake whitefish (Coregonus clupeaformis) health measures: linking individual-based indicators to a management-relevant endpoint. Journal of Great Lakes Research 36:121-134. | Abstract May 2010
Wagner, T., S.R. Midway, T. Vidal, B.J. Irwin, and J.R. Jackson. 2016. Detecting unusual temporal patterns in fisheries time series data. Transactions of the American Fisheries Society 145:786-794. | Abstract | Download June 2016
Wagner, T., P.A. Soranno, K.E. Webster, and K. Spence Cheruvelil. 2011. Landscape drivers of regional variation in the relationship between total phosphorus and chlorophyll in lakes. Freshwater Biology 56:1811-1824. | Abstract June 2011
Wagner, T., P.A. Soranno, K. Spence Cheruvelil, B. Renwick, K. Webster, P. Vaux, and R. Abbitt. 2008. Quantifying sample biases of inland lake sampling programs in relation to lake surface area and land use/cover. Environmental Monitoring and Assessment 131-147. | Abstract February 2008
Wagner, T., N.R. Lottig, M.L. Bartley, E.M. Hanks, E.M. Schliep, N.B. Wikle, K.B.S. King, I. McCullough, J. Stachelek, K.S. Cheruvelil, C.T. Filstrup, J.F. Lapierre, B. Liu, P.A. Soranno, P-N. Tan, Q. Wang, K. Webster, and J. Zhou. 2019. Increasing accuracy of lake nutrient predictions in thousands of lakes by leveraging water clarity data. Limnology and Oceanography Letters. https://doi.org/10.1002/lol2.10134 December 2019
Wagner, T., M.E. Benbow, T.O. Brenden, J. Qi, and R.C. Johnson. 2008. Buruli ulcer disease prevalence in Benin, West Africa: associations with land use/cover and the identification of disease clusters. International Journal of Health Geographics 7:25. | Abstract May 2008
Wagner, T., M.E. Benbow, M. Burns, R.W. Merritt, J. Qi, P.L.C. Small, and R.C. Johnson. 2008. A landscape-based model for predicting Mycobacterium ulcerans infection (Buruli ulcer) presence in Benin, West Africa. EcoHealth 5:69-79. | Abstract February 2008
Wagner, T., J.T. Deweber, J. Detar, and J.A. Sweka. 2013. Landscape-scale evaluation of asymmetric interactions between brown trout and brook trout using two-species occupancy models. Transactions of the American Fisheries Society 142:353-361. | Download January 2013
Wagner, T., J.T. Deweber, J. Detar, D. Kristine, and J.A. Sweka. 2014. Spatial and Temporal Dynamics in Brook Trout Density: Implications for Population Monitoring. North American Journal of Fisheries Management 34:258-269. | Download March 2014
Wagner, T., J.R. Bence, M.T. Bremigan, D.B. Hayes, and M.J. Wilberg. 2007. Regional trends in fish mean length at age: components of variance and the power to detect trends. Canadian Journal of Fisheries and Aquatic Sciences 64:968-978. December 2007
Wagner, T., J.L. Congleton, and D.M. Marsh. 2004. Smolt-to-adult return rates of juvenile chinook salmon transported through the Snake-Columbia River hydropower system, USA, in relation to densities of co-transported juvenile steelhead. Fisheries Research 68:259-270. December 2004
Wagner, T., G.J.A. Hansen, E. Schliep, B. Bethke, A. Honsey, P. Jacobson, B.C. Kline, and S.L. White. 2020. Improved understanding and prediction of freshwater fish communities through the use of joint species distribution models. Canadian Journal of Fisheries and Aquatic Sciences 77(9): 1540-1551. https://doi.org/10.1139/cjfas-2019-0348 August 2020
Wagner, T., D.R. Diefenbach, A.S. Norton, and S.A. Christensen. 2011. Using multilevel models to quantify heterogeneity in resource selection. Journal of Wildlife Management 75:1788-1796. | Abstract | Download November 2011
Wagner, T., D.B. Hayes, and M.T. Bremigan. 2006. Accounting for multilevel data structures in fisheries data using mixed models. Fisheries 31:180-187. December 2006
Wagner, T., C.S. Vandergoot, and J. Tyson. 2009. Evaluating the Power to Detect Temporal Trends in Fishery-Independent Surveys: A Case Study Based on Gillnets Set in the Ohio Waters of Lake Erie for Walleye. North American Journal of Fisheries Management 29:805-816. | Abstract May 2009
Wagner, T., C.E. Fergus, C.A. Stow, K.S. Cheruvelil, and P.A. Soranno. 2016. The statistical power to detect cross-scale interactions at macroscales. Ecosphere. 7(7):e01417. | Download July 2016
Wagner, T., Bremigan, M. T., Spence Cheruvelil, K., Soranno, P. A., Nate, N. N., and Breck, J. E. 2007. A multilevel modeling approach to assessing regional and local landscape features for lake classification and assessment of fish growth rates. Environmental Monitoring and Assessment 130:437-454. December 2007
Wagner, T., B. J. Irwin, J. R. Bence, and D.B. Hayes. 2013. Detecting temporal trends in freshwater fisheries surveys: statistical power and the important linkages between management questions and monitoring objectives. Fisheries 38:309-319. | Download July 2013
Wagner, T. and S.R. Midway. 2014. Modeling spatially varying landscape change points in species occurrence thresholds. Ecosphere 5(11):145.http://dx.doi.org/10.1890/ES14-00288.1 | Download November 2014
Wagner, T. and E.M. Schliep. 2018. Combining nutrient, productivity, and landscape-based regressions improves predictions of lake nutrients and provides insight into nutrient coupling at macroscales. Limnology and Oceanography 63:2372-2383. August 2018
Wagner, T. and C.M. Falter. 2002. Response of an aquatic macrophyte community to fluctuating water levels in an oligotrophic lake. Lake and Reservoir Management 18:52-65. December 2002
Wagner, T. J.B. Whittier, J.T. DeWeber, S.R. Midway, and C.P. Paukert. 2017. Annual changes in seasonal river water temperatures in the eastern and western United States. Water 9(2), 90; doi:10.3390/w9020090 February 2017
Wagner, T. A.K. Jubar, and M.T. Bremigan. 2006. Can habitat alteration and spring angling explain black bass nest distribution and success? Transactions of the American Fisheries Society 135:843-852. December 2006
Vidal, T., B. J. Irwin, C. P. Madenjian, and S. J. Wenger. 2019. Age truncation of alewife in Lake Michigan. Journal of Great Lakes Research. https://doi.org/10.1016/j.jglr.2019.06.006 July 2019
Vidal, T. E., B. J. Irwin, T. Wagner, L. G. Rudstam, J. R. Jackson, and J. R. Bence. 2017. Using Variance Structure to Quantify Responses to Perturbation in Fish Catches. Transactions of the American Fisheries Society 146:584-593. [Featured Article] | Abstract April 2017
Thompson, T.J., M.A. Briggs, P.J. Phillips, V.S. Blazer, K.L. Smalling, D.W. Kolpin, T. Wagner. 2020. Groundwater discharges as a source of phytoestrogens and other agriculturally derived contaminants to streams. Science of the Total Environment.

October 2020
Sweka, J.A., T. Wagner, J. Detar, and D. Kristine. 2012. Combining Field Data with Computer Simulations to Determine a Representative Reach for Brook Trout Assessment. Journal of Fish and Wildlife Management 3:209-222. December 2012
Sweka, J.A., L.A. Davis, T. Wagner. 2017. Fall and winter survival of brook and brown trout in a North-Central Pennsylvania watershed. Transactions of the American Fisheries Society 146:744-752. | Download May 2017
Stow, C.A., K.E. Webster, T. Wagner, N. Lottig, P.A. Soranno, C. YoonKynug. 2018. Small Values in Big Data: The Continuing Need for Appropriate Metadata. Ecological Informatics 45:26-30. May 2018
Stachelek, J. W. Weng, C.C. Carey, A.R. Kemanian, K.M. Cobourn, T. Wagner, K.C. Weathers, P.A. Soranno. 2020. Granular measures of agricultural land-use influence lake nitrogen and phosphorus differently at macroscales. Ecological Applications 30, e02123. April 2020
Spence Cheruvelil, K., P.A. Soranno, M.T. Bremigan, T. Wagner, and S.L. Martin. 2008. Grouping lakes for water quality assessment and monitoring: the roles of regionalization and spatial scale. Environmental Management 41:425-440. | Abstract February 2008
Soranno, P.A., T. Wagner, S. Martin, L. McLean, L. Novitski,C. Provence, and A. Rober. 2011. Quantifying regional reference conditions for freshwater ecosystem management: A comparison of approaches and future research needs. Lake and Reservoir Management 27:138-148. | Abstract May 2011
Soranno, P.A., L.C. Bacon, M. Beauchene, K.E. Bednar, E.G. Bissell, C.K. Boudreau, M.G. Boyer, M.T. Bremigan, S.R. Carpenter, J.W. Carr and 70 co-authors. LAGOS-NE: A multi-scaled geospatial temporal database of lake ecological context and water quality for thousands of U.S. Lakes. In press. GigaScience. October 2017
Soranno, P.A., K.S. Cheruvelil, T. Wagner, K.E. Webster, and M.T. Bremigan. 2015. Effects of land use on lake nutrients: The importance of scale, hydrologic connectivity, and region. PLoS ONE 10(8): e0135454. | Download August 2015
Soranno, P.A., K.S. Cheruvelil, B. Liu, Q. Wang, P-N. Tan, J. Zhou, K.B.S. King, I.M. McCullough, J. Stachelek, M. Bartley, C.T. Filstrup, E.M. Hanks, J-F. Lapierre, N.R. Lottig, E.M. Schliep, T. Wagner, K.E. Webster. 2020. Ecological prediction at macroscales using big data: Does sampling design matter? Ecological Applications 30:e02123. September 2020
Soranno, P.A., K. Spence Cheruvelil, K.E. Webster, M.T. Bremigan, T. Wagner, and C.A. Stow. 2010. Freshwater Ecosystem Classification for Landscape-scale Management. BioScience 60:440-454. June 2010
Soranno, P.A., K. Spence Cheruvelil, E. Bissell, M. Tate-Bremigan, J.A. Downing, C.E. Fergus, C. Filstrup, N.R. Lottig, E.N. Henry, E.H. Stanley, C.A. Stow, P.N. Tan, T. Wagner, and K.E. Webster. 2014. Cross-scale interactions: A conceptual framework for understanding multi-scaled cause-effect relationships in macrosystems. Frontiers in Ecology and the Environment 12:65-73. | Download February 2014
Soranno, P.A., E.G. Bissell, K.S. Cheruvelil, S.M. Collins, C.E. Fregus, C.T. Filstrup, J-F. Lapierre, N.R. Lottig, S.K. Oliver, C.E. Scott, N.J. Smith, S. Stopyak, S. Yuan, M.T. Bremigan, J.A. Downing, C. Gries, E.N. Henry, N.K. Skaff, E.H. Stanley, C.A. Stow, P-N. Tan, T. Wagner, and K.E. Webster. 2015. Building a multi-scaled geospatial temporal ecology database from disparate data sources: Fostering open science and data reuse. GigaScience 4:28. | Download July 2015
Soranno*, P.A., T. Wagner*, S.M. Collins, J-F Lapierre, N.R. Lottig, and S.M. Oliver. 2019. Spatial and temporal variation of ecosystem properties at macroscales. Ecology Letters 22:1587-1598. (* co-leads) September 2019
Smith, L.A., T. Wagner, M.L. Bartron. 2015. Spatial and temporal movement dynamics of brook Salvelinus fontinalis and brown trout Salmo trutta. Environmental Biology of Fishes 98:2049-2065. | Download July 2015
Smalling, K.L., O.H. Devereux, S. Gordon, P. Phillips, V.S. Blazer, M.L. Hladik, D.W. Kolpin, M.T. Meyer, A. Sperry, and T. Wagner. 2021. Environmental and anthropogenic drivers of contaminants in agricultural watersheds with implications for land management. Science of the Total Environment 145687. February 2021
Schall, M.K., V.S. Blazer, R.M. Lorantas, G.D. Smith, J.E. Mullican, B.J. Keplinger, T. Wagner. In press. Quantifying Temporal Trends in Fisheries Abundance using Bayesian Dynamic Linear Models: A Case-Study of Riverine Smallmouth Bass Populations. North American Journal of Fisheries Management. April 2018
Schall, M.K., V.S. Blazer, H.L. Walsh, G.D. Smith, T. Wertz, and T. Wagner. Spatial and temporal variability of myxozoan parasite prevalence in young of the year smallmouth bass in the Susquehanna River Basin, Pennsylvania August 2018
Schall, M.K., T. Wertz, G.D. Smith, V.S. Blazer, and T. Wagner. 2019. Movement dynamics of smallmouth bass (Micropterus dolomieu) in a large river-tributary system. Fisheries Management and Ecology 26:590-599. July 2019
Schall, M.K., M.L. Bartron, T. Wertz, J. Niles, V.S. Blazer, and T. Wagner. 2017. Evaluation of genetic population structure of Smallmouth Bass in the Susquehanna River Basin, PA. North American Journal of Fisheries Management 37:729-740. May 2017
Schall, M.K., G.D. Smith, V.S. Blazer, H.L. Walsh, Y. Li, and T. Wagner. 2020. A fishery after the decline: The Susquehanna River Smallmouth Bass story. Fisheries 45:576-584. August 2020
Rennie, M.D., M.P. Ebener, and T. Wagner. 2012. Can migration mitigate the effects of ecosystem change? Patterns of dispersal, energy acquisition and allocation in Great Lakes lake whitefish (Coregonus clupeaformis). Proceedings of the 10th Annual Coregonid Symposium. Advances in Limnology 63:455-476. | Download January 2012
Pregler, K.C., R.D. Hanks, E. Childress, N.P. Hitt, D.J. Hocking, B.H. Letcher, T. Wagner, and Y. Kanno. 2019. State-space analysis of power to detect regional brook trout population trends over time. Canadian Journal of Fisheries and Aquatic Sciences 76:2145-2155. October 2019
Perles, S. J., T. Wagner, B. J. Irwin, D. R. Manning, K. K. Callahan, and M. R. Marshall. 2014. Evaluation of a regional monitoring program's statistical power to detect temporal trends in forest health indicators. Environmental Management 54:641-655. doi:10.​1007/​s00267-014-0313-z | Download July 2014
Peoples, B., S.R. Midway, J.T. DeWeber, and T. Wagner. 2018. Catchment scale determinants of nonindigenous minnow richness in the eastern United States. Ecology of Freshwater Fish 27:138-145. January 2017
Oliver, S.k., S.M. Collins, P.A. Soranno, T. Wagner, E.H. Stanley, J.R. Jones, C.A. Stow, and N.R. Lottig. 2017. Unexpected stasis in a changing world: Lake nutrient and chlorophyll trends since 1990. Global Change Biology 23:5455–5467 DOI: 10.1111/gcb.13810 August 2017
Oliver, S.K., P.A. Soranno, C.E. Fergus, T. Wagner, L.A. Winslow, C.E. Scott, K.E. Webster, J.A. Downing, and E.A. Stanley. 2016. Prediction of lake depth across a 17-state region in the U.S. Inland Waters 6:314-324. | Download June 2016
Oliver, S.K., C.E. Fergus, N.K. Skaff, T. Wagner, P-N. Tan, K.S. Cheruvelil, and P.A. Soranno. Strategies for effective collaborative manuscript development in interdisciplinary science teams. Ecosphere. May 2018
Mollenhauer, R., T. Wagner, M.V. Kepler, J.A. Sweka. 2013. Fall and early winter movement and habitat use of wild brook trout. Transactions of the American Fisheries Society 142:1167-1178. | Download July 2013
Miksis-Olds, J. L. and T. Wagner. 2010. Behavioral response of manatees to variations in environmental sound levels. Marine Mammal Science 27: 130–148 | Abstract March 2010
Midway, S.R., T. Wagner, J.D. Zydlewski, B.J. Irwin, and C.P. Paukert. 2016. Transboundary Fisheries Science: Meeting the Challenges of Inland Fisheries Management in the 21st Century. Fisheries 41:537-546. | Download September 2016
Midway, S.R., T. Wagner, G.H. Burgess. 2019. Trends in global shark attacks. PLOSE ONE.| https://doi.org/10.1371/journal.pone.0211049 F February 2019
Midway, S.R., C.T. Hasler, T. Wagner, and C.D. Suski. 2017. Predation of freshwater fish in elevated carbon dioxide environments. Marine and Freshwater Resources 68:1585-1592. February 2017
Midway, S.R. and T. Wagner. 2015. The first description of oarfish Regalecus glesne (Regalecidae) ageing structures. Journal of Applied Ichthyology. December 2015
Midway, S., T. Wagner, B. H. Tracy, G. M. Hogue, and W.C. Starnes. 2015. Evaluating changes in stream fish species richness over a 50-year time-period within a landscape context. Environmental Biology of Fishes 98:1295-1309. | Abstract March 2015
Midway, S. R., T. Wagner, S. Arnott, P. Biondo, F. Martinez-Andrade, and T. Wadsworth. 2015. Spatial and temporal variability in growth of southern flounder (Paralichthys lethostigma). Fisheries Research 167:323-332. April 2015
Midway, S. M., T. Wagner. and Tracy, B. 2014. A hierarchical community occurrence model for North Carolina stream fish. Transactions of the American Fisheries Society 143:1348-1357. | Download September 2014
McClure, C.M., K.L. Smalling, V.S. Blazer, A.J. Sperry, M.K. Schall, D.W. Kolpin, P.J. Phillips, M.L. Hladik, and T. Wagner. 2020. Spatiotemporal variation in occurrence and co-occurrence of pesticides, hormones, and other organic contaminants in rivers in the Chesapeake Bay Watershed, United States. Science of The Total Environment 728:138765. April 2020
Maynard-Bean, E. E. M. Kaye, T. Wagner, E.P. Burkhart. 2020. Citizen scientists record novel leaf phenology of invasive shrubs in eastern U.S. forests. Biological Invasions 22:3325–3337. August 2020
Massie, D.L., Y. Li, and T. Wagner. In press. A framework for detecting macroscale drivers on fish growth. Canadian Journal of Fisheries and Aquatic Sciences. November 2020
Massie, D.L., G.D. Smith, T.F. Bonvechio, A.J. Bunch. D.O. Lucchesi, T. Wagner. 2018. Spatial variability and macroscale drivers of growth for native and introduced Flathead Catfish populations. Transactions of the American Fisheries Society 147:554-565. May 2018
Lottig, N.R., T. Wagner, E.N. Henry, K. Spence Cheruvelil, K.E. Webster, et al. 2014 Long-Term Citizen-Collected Data Reveal Geographical Patterns and Temporal Trends in Lake Water Clarity. PLoS ONE 9(4): e95769. doi:10.1371/journal.pone.0095769. | Download April 2014
Lottig, N.R., P.-N. Tan, T. Wagner, K.S. Cheruvelil, P.A. Soranno, E.H. Stanley, C.E. Scott, C.A. Stow, and S. Yuan. 2017. Macroscale patterns of synchrony identify complex relationships among spatial and temporal ecosystem drivers. Ecosphere 8(12). December 2017
Liang, Z., Y. Xu, Q. Qiu, Y. Liu, W. Lu, and T. Wagner. 2021. Developing Joint Nutrient Criteria Using Quantile Regression for Lake Eutrophication Management. Journal of Hydrology 594:125883. https://doi.org/10.1016/j.jhydrol.2020.125883 January 2021
Liang, Z., P.A. Soranno, T. Wagner. 2020. The role of phosphorus and nitrogen on chlorophyll a: evidence from hundreds of lakes. Water Research 185:116236. https://doi.org/10.1016/j.watres.2020.116236 July 2020
Li, Y., V.S. Blazer, T. Wagner. 2018. Quantifying population-level effects of water temperature, flow and chemical-induced reproduction depression: a simulation study with smallmouth bass. Ecological Modelling 384:63-74. https://doi.org/10.1016/j.ecolmodel.2018.06.015 November 2018
Li, Y., V.S. Blazer, L.R. Iwanowicz, M.K. Schall, K. Smalling, D. Tillitt, and T. Wagner. 2020. Ecological risk assessment of environmental stress and bioactive chemicals to riverine fish populations: an individual-based model of smallmouth bass Micropterus dolomieu. Ecological Modelling 438:109322. October 2020
Li, Y., T. Wagner, Y. Jiao, R. Lorants, and C.A Murphy. Accepted. Evaluating spatial and temporal variability in growth and mortality for recreational fisheries with limited catch data. Canadian Journal of Fisheries and Aquatic Sciences. November 2017
Li, Y. and T. Wagner. 2019. Does incorporating gear selectivity during macroscale investigations of fish growth reduce size-selective sampling bias in parameter estimates? Canadian Journal of Fisheries and Aquatic Sciences 76:2089-2101. February 2019
Levy, O., B.A. Ball, B. Bond-Lamberty, K.S. Cheruvelil, A.O. Finley, N. Lottig, S.W. Punyasena, J. Xiao, J. Zhou, L.B. Buckley, C.T. Filstrup, T. Keitt, J.R. Kellner, A.K. Knapp, A.D. Richardson, D. Tcheng, M. Toomey, R. Vargas, J.W. Voordeckers, T. Wagner, J.W. Williams. 2014. Approaches to advance scientific understanding of macrosystems ecology. Frontiers in Ecology and the Environment 12:15-23. | Download February 2014
Kepler, M.V., T. Wagner, and J.A. Sweka. 2014. Comparative bioenergetics modeling of two Lake Trout morphotypes. Transactions of the American Fisheries Society 143:1592–1604. | Download October 2014
Irwin, B.J., T. Wagner, J.R. Bence, M.V. Kepler, W. Liu, and D.B. Hayes. 2013. Estimating spatial and temporal components of variation for fisheries count data using negative binomial mixed models. Transactions of the American Fisheries Society 142:171-183. | Download January 2013
Irwin, B., T Wagner, and J. R. Bence. 2018. Characterization of Spatial and Temporal Variability in Fishes in Response to Climate Change. Project completion report [extended abstract], Northeast Climate Science Center. January 2018
Hansen, G.J.A., T.D. Ahrenstorff, B.J. Bethke, J. Dumke, J. Hirsch, K.E. Kovalenko, J.F. LeDuc, R.P. Maki, H. Rantala, and T. Wagner. 2020. Walleye growth declines following zebra mussel and Bythotrephes invasion. Biological Invasions 22:1481–1495. January 2020
Hansen, G.J.A., S.R. Midway, T. Wagner. 2017. Walleye recruitment is less resilient to warming water temperatures in lakes with abundant largemouth bass populations. Canadian Journal of Fisheries and Aquatic Sciences. April 2017
Grossman, G.D., R.F. Carline, and T. Wagner. Brown trout (Salmo trutta) in Spruce Creek Pennsylvania: a quarter-century perspective. 2017. Freshwater Biology 62:1143-1154. April 2017
Gatch, A. Z. Biesinger, E. Bruestly, C. Karboski, K. Lee, T. Wagner, M. Bartron, D. Gorsky. 2021. Discovery of Successful River Spawning by Lake Trout (Salvelinus namaycush) in the Lower Niagara River, Lake Ontario. January 2021
Filstrup, C.T., T. Wagner, S.K. Oliver, C.A. Stow, K.E. Webster, E.H. Stanley, and J.A. Downing. 2018. Evidence for regional nitrogen stress on chlorophyll a in lakes across large landscape and climate gradients. Limnology and Oceanography. February 2018
Filstrup, C.T., T. Wagner, P.A. Soranno, E.H. Stanley, C.A. Stow, K.E. Webster, and J.A. Downing. 2014. Regional variability among nonlinear chlorophyll-phosphorus relationships in lakes. Limnology and Oceanography 59:1691-1703. | Abstract | Download | Publisher Website August 2014
Fergus, C.E., A.O. Finley, P.A. Soranno, T. Wagner. 2016. Spatial Variation in Nutrient and Water Color Effects on Lake Chlorophyll at Macroscales. PLoS ONE 11(10): e0164592.doi:10.1371/journal.pone.0164592. October 2016
Diefenbach, D. R., T. Wagner and G. E. Stauffer. 2014. Setting Objectives for Managing Key Deer. U.S. Department of Interior, Fish and Wildlife Service, Cooperator Science Series FWS/CSS-106-2014,Washington, D.C. | Download June 2014
Deweber, J.T., Y., Tsang, D.M. Krueger, J.B. Whittier, T. Wagner, D.M. Infante, and G. Whelan. 2014. Importance of understanding landscape biases in USGS gage locations: Implications and solutions for managers. Fisheries 39:155-163. | Download April 2014
Deweber, J.T. and T. Wagner. 2014. A regional neural network model for predicting mean daily river water temperature. Journal of Hydrology 517:187-200. | Download June 2014
Detar, J., D. Kristine, T. Wagner, and T. Greene. 2014. Evaluation of Catch-and-Release Regulations on Brook Trout in Pennsylvania Streams. North American Journal of Fisheries Management 34:49-56. | Download January 2014
DeWeber, J.T. and T. Wagner. 2018. Probabilistic measures of climate change vulnerability, adaptation action benefits, and related uncertainty from maximum temperature metric selection. Global Change Biology. February 2018
DeWeber, J.T. and T. Wagner. 2015. Translating climate change effects into everyday language: an example of more driving and less angling. Fisheries 40:395-398. | Download August 2015
DeWeber, J.T and T. Wagner. 2015. Predicting Brook Trout occurrence in stream reaches throughout their native range in the eastern United States. Transactions of the American Fisheries Society 144:11-24. | Download December 2014
DePasquale, C., T. Wagner, G.A. Archard, B. Ferguson, and V.A. Braithwaite. 2014. Learning rate and temperament in a high predation risk environment. Oecologia 176:661-667. November 2014
Davis, L.A. and T. Wagner. 2016. Scale-dependent seasonal pool habitat use by sympatric wild Brook Trout and Brown Trout populations. Transactions of the American Fisheries Society 145:888-902. | Download June 2016
Congleton, J. L., and T. Wagner. 2006. Blood-chemistry indicators of nutritional status in juvenile salmonids. Journal of Fish Biology 69:473-790. December 2006
Collins, S.M., S.K. Oliver, J.F. Lapierre, E.H. Stanley, J.R. Jones, T. Wagner. and P.A. Soranno. 2017. Lake nutrient stoichiometry is less predictable than nutrient concentrations at regional and sub-continental scales. Ecological Applications 27:1529-1540. July 2017
Collins, S.M., S. Yuan, P-T. Tan, S.K. Oliver, J.F. Lapierre, K.S. Cheruvelil, C.E. Fergus, N.K. Skaff, J.S. Stachelek, T. Wagner, P.A. Soranno. 2019. Winter precipitation and summer temperature predict lake water quality at macroscales . Water Resources Research 55:2708-2721. March 2019
Cheruvelil, S. K., S. Yuan, K.E. Webster, P-N Tan, J.F. Lapierre, S.M. Collins, C.E. Fergus, C.E. Scott, E.N. Henry, P.A. Soranno, C.T. Filstrup, T. Wagner. Creating multi-themed ecological regions for macrosystems ecology: Testing a flexible, repeatable, and accessible clustering method. Ecology and Evolution 7:3046-3058. August 2017
Brennan, J.C., R.W. Gale, D.A. Alvarez, J.K. Leet, Y. Li, T. Wagner, D.E. Tillitt. 2020. Factors affecting sampling strategies for design of an effects-directed analysis for endocrine-active chemicals. Environmental Toxicology and Chemistry 39:1309-1324. https://doi.org/10.1002/etc.4739 May 2020
Brenden, T. O., T. Wagner, and B.R. Murphy. 2008. Generalized linear mixed modeling as a framework for analyzing proportional size structure index data. North American Journal of Fisheries Management 28:1233-1242. | Abstract August 2008
Bartley, M.L., E.M. Hanks, E.M. Schliep, P.A. Soranno, and T. Wagner. Identifying and characterizing extrapolation in multivariate response data. PLOSE ONE. December 2019
Project Completion Date
A decision support mapper for conserving stream fish habitats of the Northeast Climate Science Center region June 2016
Structured Decision Making for Key Deer Management and Recovery June 2014
Linking fish health, contaminants, and population dynamics of smallmouth bass populations in the Susquehanna River, Pennsylvania April 2017
Characterization of spatial and temporal variability in fishes in response to climate change August 2017
Trans-boundary management and conservation: linking large-scale dynamics to ecological monitoring and management September 2014
Fish Community Assessment in the Eastern Rivers and Mountains Network and Integration with Existing Monitoring Data May 2015
The effects of cross-scale interactions on freshwater ecosystem state across space and time May 2016
Modeling species response to environmental change: development of integrated, scalable Bayesian models of population persistence March 2014
Lake Trout (Salvelinus namaycush) Reproduction, Habitat Use, and Movement Dynamics in the Niagara River/Niagara Bar, Lake Ontario September 2013
Comparative Energetics of Lake Trout Morphotypes June 2013
Nations Fish Habitat at Multiple Spatial Scales in a Rapidly Changing Climate September 2014
Spatial and Temporal Components of Variation in Great Lake Percid Populations June 2011
Evaluation of Wild Trout Resources and Restoration Efforts in Pennsylvania June 2015
Distribution of PCB Congeners in Pennsylvania Streams and Fish: Implications for Risk Assessment and Fish Health December 2011
Landscape transcriptomics as a new tool for natural resources management December 2021
Forecasting Aquatic Invasions in Rivers: Using Riverscapes Genetics to Inform Invasive Fish Species Management at Regional Scales September 2022
Scale, Space, and Time: A Unifying Approach to Aquatic Invasions December 2026
Quantifying the impacts of climate change on fish growth and production to enable sustainable management of diverse inland fisheries August 2022
Changes in stream fish distribution and occurrence in seven National Park Service units of the Eastern Rivers and Mountains Network December 2022
Determining the consequences of land management actions on fish population dynamics and distributions May 2025
Fish habitat restoration to promote adaptation: resilience of sport sh in lakes of the Upper Midwest August 2023
Diet composition of invasive Flathead Catfish in the Susquehanna River Basin: quantifying impacts on native and migratory fishes and recreational fisheries January 2022
Quantifying the Roles of Changing Watershed Conditions and Biotic Interactions in Structuring Pennsylvania Stream Fish Communities January 2022
Comparison of age and growth parameters of Flathead Catfish in invasive and native populations: A meta-analysis with implications for invasive species management in Pennsylvania January 2020
An investigation into the role of groundwater as a point source of emerging contaminants to smallmouth bass in the Susquehanna River basin March 2018
Preliminary determination of density and distribution of Flathead Catfish Pylodictis olivaris in the Susquehanna River and select tributaries December 2017
A macrosystems ecology framework for continental-scale prediction and understanding of lakes September 2021
Establishing a strategy for assessing risk of endocrine-disrupting compounds to aquatic and terrestrial organisms September 2019
Can plasticity protect populations from rapid environmental fluctuation? May 2018
Chris, Custer
PhD
cac6877@psu.edu

McClure, Catherine
Master's
CMM1148@psu.edu

McLaughlin, Paul
Post Doc
pwm5174@psu.edu

White, Shannon
Post Doc
slw361@psu.edu

Zhongyao, Liang
Post Doc
zvl5373@psu.edu

Presentations Presentation Date
White, S.L., W.L. Miller, S.A. Dowell, M.L. Bartron, and T. Wagner. 2018. Limited hatchery introgression into wild brook trout populations despite reoccurring stocking. Annual Meeting of The American Fisheries Society, Atlantic City, New Jersey. August 2018
White, S.L., E.M. Hanks, and T. Wagner. 2019. A novel quantitative framework for riverscape genetics highlights the importance of mainstem channels for brook trout population connectivity. Annual Meeting of the American Fisheries Society. September 2019
White, S.L., C. Gowan, T. Wagner, V.A. Braithwaite. 2015. Boldness impairs spatial learning ability in brook trout. American Fisheries Society Annual Meeting, Portland, Oregon. August 2015
White, S.L. and T. Wagner. 2018. With Connectivity Comes Challenges: Brook Trout Metapopulation Dynamics Reveal Unique Management Challenges. Society for Freshwater Science, Detroit MI. May 2018
White, S., W. Miller, S. Dowell, M. Bartron, and T. Wagner. 2018. Limited hatchery introgression in wild brook trout populations in a northcentral Pennsylvania watershed. The Pennsylvania Chapter of the American Fisheries Society. February 2018
White, S., S. Dowell, M. Bartron, and T. Wagner. 2017. Where do all the fish go? Combining multiple measures of fish movement to gain insights into brook trout population connectivity. Wild Trout Symposium, West Yellowstone, MT. September 2017
White, S., S. Dowell, M. Bartron, and T. Wagner. 2017. Where do all the fish go? Combining multiple measures of fish movement to gain insights into brook trout population connectivity. The Annual Meeting of the American Fisheries Society, Tampa FL. August 2017
White, S., L. Iwanowicz, T. Wagner. 2016. Stream temperature and stress protein regulation in Brook Trout. Susquehanna River Symposium, Bucknell University. November 2016
White, S. and T. Wagner. Movers and Stayers: Can We Predict Movement Behavior in Brook Trout? Joint meeting between the West Virginia and Pennsylvania Chapters of the American Fisheries Society, California State University of Pennsylvania. February 2017
Wagner, T., J.T. Deweber, J. Detar, D. Kristine, and J.A. Sweka. 2013. Spatial and Temporal Dynamics in Brook Trout Density: Implications for Population Monitoring. American Fisheries Society Pennsylvania Chapter Fall Technical Meeting. October 2013
Wagner, T., E. Schliep, G. Hansen, B. Bethke, and P. Jacobson. 2018. C’mon, everyone’s doing it: joint distribution models for studying spatiotemporal dynamics of fish communities and their habitat . Annual Meeting of the American Fisheries Society, Atlantic City, NJ. August 2018
Wagner, T. 2021. Ecological Risk Assessment of Environmental Stress and Bioactive Chemicals to Riverine Fish Populations: An Individual-Based Model of Smallmouth Bass. Invited presentation. Quantitative Fisheries Center, Michigan State University. February 2021
Wagner, T. 2017. "Movers" and "Stayers": understanding brook trout movement for conservation and management. Pennsylvania Wild Trout Summit. The Future of Wild Trout in Pennsylvania. August 2017
Wagner, T. 2016. Risk assessment of contaminants to fish and wildlife populations in the Chesapeake Bay Watershed: a simulation study with smallmouth bass. PA Department of Environmental Protection, Statewide Annual Biologist Meeting. October 2016
Vidal, T., C. Jansch, B. J. Irwin, T. Wagner, J. R. Bence, J. R. Jackson, L. G. Rudstam, and W. W. Fetzer. 2014. Using variance structure as statistical indicators of large scale ecological change. Annual meeting of the American Fisheries Society, Québec City, Québec, Canada. August 2014
Vidal, T., B. J. Irwin, T. Wagner, L. G. Rudstam, J. R. Bence, and J. R. Jackson. Using variance structure to quantify perturbation induced ecological reorganization. Warnell Graduate Student Symposium, University of Georgia, Athens, GA. February 2015
Vidal, T. E., B. J. Irwin, and C. P. Madenjian. 2017. Demographic structure influences how environmental forcing affects Alewife recruitment in Lake Michigan. Meeting of the Southern Division of the American Fisheries Society, Oklahoma City, OK. February 2017
Vidal, T. E., B. J. Irwin, and C. P. Madenjian. 2016. Disentangling exogenous drivers of Alewife population dynamics in Lake Michigan. Georgia Chapter Meeting of the American Fisheries Society. Columbus, GA. February 2016
Thompson, T.J., V. Blazer, A. Sperry, M. Briggs, and T. Wagner. 2018. Groundwater as a source of emerging contaminants to streams of the Chesapeake Bay Watershed. . Society for Freshwater Science, Detroit MI. May 2018
Thompson, T.J., T. Wagner, V.S. Blazer, P. Phillips, M. Briggs, and A. Sperry. 2017. Groundwater as a source of emerging contaminants in the Chesapeake Bay. U.S. Geological Survey Chesapeake Bay Meeting, Aug 23-25. August 2017
Thompson, T., T. Wagner, V. Blazer, A. Sperry, and M.A. Briggs. 2017. Groundwater as a source of emerging contaminants. Susquehanna River Symposium, Bucknell University. November 2017
Thompson, T., M. Schall, T. Wagner, V. Blazer, A. Sperry and J. Niles. An investigation into the role of groundwater as a point source of emerging contaminants to smallmouth bass in the Susquehanna River basin. 2016 Chesapeake Bay Workshop, Aug 30-Sept 1. August 2016
Thompson, T., M. Schall, T. Wagner, V. Blazer, A. Sperry and J. Niles. 2016. An investigation into the role of groundwater as a point source of emerging contaminants to smallmouth bass in the Susquehanna River basin. Joint meeting between the West Virginia and Pennsylvania Chapters of the American Fisheries Society, California State University of Pennsylvania. February 2017
Sweka, J.A., L. Davis, and T. Wagner. 2016. Survival of Brook and Brown Trout through the Spawning Season in a North Central Pennsylvania Watershed. 146th AFS Annual Meeting in Kansas City, Missouri, August 21-25. August 2016
Sweka, J.A. and T. Wagner. Effects of stream discharge on young-of-year brook trout density in North Central Pennsylvania. Annual Meeting of the American Fisheries Society, Atlantic City, NJ. August 2018
Staudinger, M. D., E. Grant, B. Irwin, R. Kraus, D. Krueger, and J. Stewart. 2014. Climate impacts on fish and fish habitats: Case studies from the Northeast Climate Science Center. Annual Meeting of the American Fisheries Society, August 2014
Stark, S.k., M.K. Schall, J.D. Avery, G.D. Smith, and T. Wagner. 2021. Evaluating sampling techniques of Flathead Catfish, Plyodictis olivaris, in the Susquehanna River Basin for dietary analysis. Pennsylvania Chapter of the American Fisheries Society Spring Technical Meeting. February 11-12, 2021. February 2021
Stark, S.K., M.K. Schall, G.D. Smith, J.D. Avery, and T. Wagner. 2021. Let’s eat! A look at the diet of the invasive Flathead Catfish (Pylodictis olivaris) in the Susquehanna River Basin, PA. Southern Division of the American Fisheries Society. April 2021
Stachelek, J., C.C. Carey, K.M. Cobourn, S.M. Collins, A.R. Kemanian, T. Wagner, K.C. Weathers, W. Weng, and P.A. Soranno. 2019. Analysis of 500 lake catchments reveals the relationship between crop type, fertilizer and manure inputs and lake nutrient concentrations. 2019. Ecological Society of America Annual Meeting. August 2019
Soranno, P.A., T. Wagner, S.M. Collins, J-F. Lapierre, N.R. Lottig, S.K. Oliver. 2018. Spatial variation exceeds temporal variation in lake ecosystem properties at macroscales. Association for the Sciences of Limnology and Oceanography, Summer Meeting, Victoria, BC, Canada. June 2018
Soranno, P.A., K.S. Cheruvelil, E. Bissell, M.T. Bremigan, J.A. Downing, C.E. Fergus, C.T. Filstrup, N.R. Lottig, E. Norton Henry, E.H. Stanley, C. Stow, P-N. Tan, T. Wagner and K. Webster. 2013. A conceptual framework for understanding multi-scaled cause-effect relationships between terrestrial and aquatic ecosystems. Ecological Society of America, 98th Annual Meeting, August 4-9, Minneapolis, MN. August 2013
Smith, L. and T. Wagner. 2013. Seasonal movement patterns and habitat use of the Eastern Brook Trout in North-central Pennsylvania. Annual Meeting of the American Fisheries Society, September 2013. September 2013
Smith, L. and T. Wagner. 2013. Seasonal movement patterns and habitat use of the Eastern Brook Trout (Salvelinus fontinalis) and Brown Trout (Salmo trutta) in North Central Pennsylvania. American Fisheries Society Pennsylvania Chapter Fall Technical Meeting. October 2013
Smith, G.D., M.K. Schall, V.S. Blazer, H.L. Walsh, and T. Wagner. 2019. The role of disease in altering the population structure of Smallmouth Bass in the Susquehanna River Basin. International Association for Great Lakes Research (IAGLR). June 2019
Sievert, N., W. Daniel, Y. Tang, C. Paukert, D. Infante, J. Whittier, K. Herreman, J. Stewart, T. Wagner. An Assessment of Potential Changes in Habitat Classes Due to Climate Change in the Northeast Climate Science Center Region. Midwest Fish and Wildlife Conference, Grand Rapids, MI January 2016
Scott, C.E., C.E. Fergus, S.M. Collins, J-F. Lapierre, N.R. Lottig, C.T. Filstrup, N. Skaff, E.H. Stanley, P-N. Tan, T. Wagner, P.A. Soranno, and K.S. Cheruvelil. Understanding the response of lake water quality at macroscales to measures of regional and global climate. The 2015 Ecological Society of America Annual Meeting, August 9 – 15. August 2015
Scott, C.E., C.E. Fergus, N.R. Lottig, C.T. Filstrup, T. Wagner, E.H. Stanley, and P.A. Soranno. 2014. Which global and regional climate metrics at macroscales best describe lake water quality responses to climate change? Joint Aquatic Sciences Meeting, Portland, OR, USA May 2014
Schall, MK., M.L. Bartron, T. Wertz, J. Niles, V.S. Blazer, T. Wagner. Investigating movement dynamics and population genetics of smallmouth bass in the Susquehanna River Basin. 2016 Chesapeake Bay Workshop, Aug 30-Sept 1. August 2016
Schall, M.K., V.S. Blazer, T. Wagner, T. Wertz, and G. Smith. 2015. Investigation of contaminants and disease characteristics of young of the year Smallmouth Bass in the Susquehanna River basin, PA. AFS-Fish Health Section Annual Meeting, Ithaca, NY. July 13-15. July 2015
Schall, M.K., V.S. Blazer, H.L. Walsh, G. Smith, T. Wertz, and T. Wagner. 2019. Quantifying spatial variability in young of year smallmouth bass disease infections in the Chesapeake Bay Watershed. International Association for Great Lakes Research (IAGLR), Brockport, NY, June 10 – 14. June 2019
Schall, M.K., V.S. Blazer, H.L. Walsh, G. Smith, T. Wertz, and T. Wagner. 2017. EVALUATING DIFFERENCES IN FIELD OBSERVATIONS AND HISTOLOGICAL PREVALENCE OF MYXOZOAN PARASITES IN YOUNG-OF-THE-YEAR SMALLMOUTH BASS (MICROPTERUS DOLOMIEU) IN THE SUSQUEHANNA RIVER BASIN, PA. AFS FHS Annual Meeting. April 2017
Schall, M.K., V.S. Blazer, H. Walsh, T. Wertz, G. Smith, and T. Wagner. 2017. Investigating myxozoan parasite prevalence in young of the year smallmouth bass in the Susquehanna River basin, 2013-2016. U.S. Geological Survey Chesapeake Bay Meeting, Aug 23-25. August 2017
Schall, M.K., T. Wagner, V. Blazer, and T. Wertz. Movement dynamics of Smallmouth Bass in the Susquehanna River basin. Pennsylvania-Ohio 2015 Joint American Fisheries Society Annual Meeting, 25–27 February 2015. February 2015
Schall, M.K., T. Wagner, R.M. Lorantas, G.D. Smith, and V.S Blazer. Investigating trends in riverine smallmouth bass catch per effort data in Pennsylvania. Joint meeting between the West Virginia and Pennsylvania Chapters of the American Fisheries Society, California State University of Pennsylvania. February 2017
Schall, M.K., G.D. Smith, J.D. Avery, and T. Wagner. 2021. Comparing the use of multiple molecular techniques for identification of prey items in invasive Flathead Catfish (Pylodictis olivaris) diets. Southern Division of the American Fisheries Society. April 2021
Schall, M., T. Wagner, M. Bartron, V.S. Blazer and J. Niles. 2016. Movement dynamics and population genetics of smallmouth bass in the Susquehanna River Basin. Susquehanna River Symposium, Bucknell University. November 2016
Rhodes, S., S. White, T. Wagner, J. Niles. 2016.Movers and Stayers: What Factors Influence Brook Trout Movement Behavior? Susquehanna River Symposium, Bucknell University. November 2016
Rhoads, S., S. White, T. Wagner, and J. Niles. Movers and stayers: what factors influence brook trout movement? Susquehanna River Symposium, Bucknell University. November 2016
Oliver, S.K., S.M. Collins, P.A. Soranno, T. Wagner, E.H. Stanley, J.R. Jones, C.A. Stow, and N.R. Lottig. 2018. Long-term changes in lake nutrient concentrations across the upper Midwest and northeast United States: how does Wisconsin stack up? Wisconsin Lakes Partnership Convention, Stevens Point, WI. April 2018
Oliver, S.K., S. Collins, K.S. Cheruvelil, P.A. Soranno, E.H. Stanley, J-F. Lapierre, N. Lottig, and T. Wagner. 2016. Long-term change in lake nutrient concentrations: where are we now? Association for the Sciences of Limnology and Oceanography. June 2016
Oliver SK, Stanley EH, Cheruvelil KS, Downing J, Fergus CE, Soranno PA, Wagner T, Webster K, Winslow L. 2014. Prediction and patterns of lake depth across a 17-state region in the U.S. Joint Aquatic Sciences Meeting. Portland, OR. May 2014
Noring, A.M., G.G. Sass, S.R. Midway, J.A. VanDeHey, J.K. Raabe, D.A. Isermann, J.M. Kampa, T.P. Parks, J. Lyons, M.J. Jennings, G.J.A. Hansen, and T. Wagner. 2017. Effects of Cisco on Walleye Growth Trajectories in Northern Wisconsin Lakes. 13th International Coregonid Symposium. September 2017
Midway, S.R., B. Peoples, J.T. DeWeber, and T. Wagner. Native congener richness, not abiotic factors, predicts cyprinid introductions. ANNUAL MEETING 146th AFS Annual Meeting in Kansas City, Missouri, August 21-25, 2016. August 2016
Midway, S. M., Wagner, T. and Tracy, B. 2014. Conserving data-poor stream species: A hierarchical approach. Southern Division of the American Fisheries Society Spring Meeting, January 22-26. January 2014
Midway, S. M., S. Wayne, G. Hogue, Wagner, T. and Tracy, B. 2014. Evaluating changes in stream fish species richness over a 50-year time period within a landscape context. Southern Division of the American Fisheries Society Spring Meeting, January 22-26. January 2014
Megan K. Schall, Vicki S. Blazer, Heather L. Walsh, Geoffrey Smith, Robert Lorantas, Timothy Wertz, and Tyler Wagner. 2018. Investigating occurrence of disease characteristics and trends in smallmouth bass abundance in rivers within the Chesapeake Bay Watershed. Chesapeake Research & Modeling Symposium, June 12 - 14, Annapolis, MD. June 2018
McCullough, I.M., K.B.S. King, P.J. Hanly, and T.Wagner. 2021. Cool, calm, and connected: freshwater connectivity and protected areas in the conterminous US. ESA Annual Meeting, Long Beach, California. August 2021
McClure, C., K. Smalling, V.Blazer, and T. Wagner. 2020. Maternal sourcing of contaminants from ovary to juvenile Smallmouth Bass in the Chesapeake Bay Watershed. Pennsylvania Chapter of the American Fisheries Society. February 2020
McClure, C. K. Smalling, V. Blazer, and T. Wagner. 2019. The spatiotemporal dynamics of contaminants in streams of the Chesapeake Bay Watershed. Annual Meeting of the American Fisheries Society. September 2019
Massie, D.L., Hansen, G., Li. Y., and T. Wagner. 2020. Do lake-specific characteristics mediate the temporal relationship between Walleye growth and warming water temperatures? Pennsylvania Chapter of the American Fisheries Society. February 2020
Massie, D.L., G. Hansen, Y. Li. and T. Wagner. 2019. Do lake-specific characteristics mediate the temporal relationship between Walleye growth and warming water temperature? Annual Meeting of the American Fisheries Society. September 2019
Massie, D., G. Smith, T. Wagner. 2016. Comparing relative abundance and population characteristics of Flathead Catfish across a range of establishment levels at the Susquehanna River.Joint meeting between the West Virginia and Pennsylvania Chapters of the American Fisheries Society, California State University of Pennsylvania. February 2017
Massie, D., G. Smith, T. Wagner. 2016. Comparing relative abundance and population characteristics of Flathead Catfish across a range of establishment levels at the Susquehanna River. Susquehanna River Symposium, Bucknell University. November 2016
Lottig, N.R., Tan, P-N, K.S. Cheruvelil, C.E. Scott, P.A. Soranno, C.A. Stow, S. Yuan, T. Wagner. 2014. TAXONOMY OF CHANGE: USING CLUSTER ANALYSIS TO IDENTIFY TEMPORAL- PATTERNS IN LIMNOLOGICAL DATA. Joint Aquatic Sciences Meeting, Portland, OR, USA May 2014
Lottig, N.R., P-N. Tan, K.S. Cheruvelil, C.E. Scott, E.H. Stanley, P.A. Soranno, C.A. Stow, T. Wagner, S. Yuan. 2016. Long-term patterns and drivers of water quality at sub-continental spatial scales. Association for the Sciences of Limnology and Oceanography. June 2016
Lorantas, R., T. Wagner, D. Arnold, J. Detar, M. Kaufmann, K. Kuhn, R. Lorson, R. Wnuk, and A. Woomer 2015. Characterizing survival of Smallmouth Bass from Age 0 to Age 1 in Pennsylvania river sections using electrofishing survey gear catch rate and regression residuals. The Annual Northeast Fish & Wildlife Conference. April 2015
Li, Y., T. Wagner, Y. Jiao, V. Blazer, D. Tillit, P. Phillips, and D. Kolpin. Risk assessment of endocrine disrupting compounds on fish and wildlife populations in Chesapeake Bay watershed: a simulation study with smallmouth bass. 2016 Chesapeake Bay Workshop, Aug 30-Sept 1. August 2016
Li, Y. and T. Wagner. 2019. Ecological risk assessment of environmental stress and bioactive chemicals to riverine fish populations: an individual-based model of smallmouth bass. American Geophysical Union Annual Conference. December 2019
Li, Y. and T. Wagner. 2016. Assessing the impacts of endocrine disrupting compounds on fish population dynamics: a case study of smallmouth bass in Pennsylvania, USA. National Conference on Ecosystem Restoration. April 2016
Lapierre, J-F., S.M. Collins, D. Seekell, P.A. Soranno, K.S. Cheruvelil, P-N. Tan, C.E. Fergus, N. Skaff, T. Wagner, M.T. Bremigan. 2016. Aligning spatial scales improves understanding of biogeochemical relationships between climate, landscape, and limnological properties. Association for the Sciences of Limnology and Oceanography. June 2016
Lapierre, J-F., S.M. Collins, C. Scott, K.S. Cheruvelil, P-N. Tan, M.T. Bremigan, T. Wagner, and P.A. Soranno. The role of spatial structure in determining the strength of the relationships among climate, landscape and limnological properties. The 2015 Ecological Society of America Annual Meeting, August 9 – 15. August 2015
Krause, K., K. Maloney, T. Wagner. 2020. Analyzing stream fish communities of the Chesapeake Bay watershed: A joint species distribution modeling approach. Annual Meeting of the American Fisheries Society. September 2020
Kline, B., S.L. White, N. Hitt, and T. Wagner. Resource use by brook trout (Salvelinus fontinalis) in a thermally complex environment. Annual Meeting of The American Fisheries Society, Atlantic City, New Jersey. August 2018
Kline, B. S. White, N. Hitt, and T. Wagner. 2017. Personality predicts success at using thermal refugia in brook trout (Salvelinus fontinalis). Susquehanna River Symposium, Bucknell University. November 2017
King, K., T. Wagner, M.T. Bremigan, D. Infante, and K. Cheruvelil. 2021. Crossing ecosystem boundaries to better understand macroscale fish diversity in lakes and streams. Society for Freshwater Scientists Annual Meeting. May 2021
Kepler, M.V., V. Blazer, T. Wagner, H. Walsh, G. Smith. 2014. Evaluation of potential disease causing agents in young of the year smallmouth bass in the Chesapeake Bay Watershed. International Symposium on Aquatic Animal Health. Portland, OR. August 31 – 5 September. September 2014
Kepler, M.V., T. Wagner, J. A. Sweka. 2013. Comparative bioenergetics modeling of two representative strains of lean and humper lake trout (Salvenlinus namaycush) morphotypes. 69th Annual Northeast Fish & Wildlife Conference, April 7-9, Saratoga Springs, New York. April 2013
Irwin, B., T. Vidal, B. Crawford, T. Gancos Crawford, and C. Moore. 2016. Quantitative Consideration of Uncertainty and Variability in Decision Analysis for Conservation and Management of Ecological Systems. Annual meeting of the Ecological Society of America, 7-12 August, 2016, Fort Lauderdale, FL. August 2016
Irwin, B. J., and T. Wagner. 2013. Using mixed models to quantify variability in fish populations. GA Chapter of the American Fisheries Society, Jekyll Island, GA January 2013
Irwin, B. J., and T. Wagner. 2013. Shifting variance structure as a potential indicator of fish-population responses to large-scale perturbation. Southern Division of the American Fisheries Society Annual Meeting. February 2013
Irwin, B. J., T. Vidal, T. Wagner, J. R. Bence, J. R. Jackson, L. G. Rudstam, and W. W. Fetzer. 2014. Shifting variance structure as an indicator of large-scale ecological change. Annual meeting of the Ecological Society of America, Sacramento, CA. August 2014
Irwin, B. J. 2017. Spatial and temporal variability in fish populations. Northeast Climate Science Center Regional Science Meeting, Amherst, MA. [Invited (no abstract)] May 2017
Ikis, D., E. Post, and T. Wagner. 2015. Bird Occupancy Dynamics in Alaskan Wetlands: Why different size ponds matter? Ecological Society of America Annual Meeting. August 2015
Hansen, G., B. Bethke, J. Dumke, J. Hirsch, K. Kovalenko, J. leDuc, R. Maki, H. Rantala, and T. Wagner. 2021. Impacts of invasive spiny water fleas and zebra mussels on first-year growth of walleye and yellow perch in Minnesota’s large lakes. Rainy-Lake of the Woods Watershed 2021 Forum. March 10-11, 2021. March 2021
Filstrup, C.T., T. Wagner, C.A. Stow, S.K. Oliver, E.H. Stanley, K.E. Webster, J.A. Downing. 2016. Nitrogen stress effects on lake phytoplankton vary by region based on land use. Association for the Sciences of Limnology and Oceanography. June 2016
Filstrup, C.T., S.K. Oliver, E.H. Stanley, C.A. Stow, T. Wagner, K.E. Webster, and J.A. Downing. 2015. Regional land use influences nitrogen subsidy-stress effects on lake phytoplankton. Association for the Sciences of Limnology and Oceanography 2015 Aquatic Sciences Meeting, February 2015, Granada, Spain. February 2015
Filstrup, C.T., S. Oliver, E.H. Stanley, C.A. Stow, T. Wagner, K.E. Webster, J.A. Downing. Subsidy-stress effects of nitrogen on phytoplankton biomass. Joint Aquatic Sciences Meeting, Portland, OR, 2014. May 2014
Filstrup, C.T., J-F. Lapierre, S.K. Oliver, P.A. Soranno, T. Wagner, and J.A. Downing. 2018. Spatiotemporal patterns in extreme lake chlorophyll concentrations at the sub-continental scale. Association for the Sciences of Limnology and Oceanography, Summer Meeting, Victoria, BC, Canada. June 2018
Filstrup, C. T., T. Wagner, P.A. Soranno, E.H. Hill, C.A. Stow. 2013. Regional variability in non-linear chlorophyll response to total phosphorus enrichment in lakes. ASLO 2013 Aquatic Sciences Meeting, 17-22 February, New Orleans, LA. February 2013
Fergus, C.E., A.O. Finley, P.A. Soranno, T. Wagner. Examining the nutrient-color paradigm across macroscales: Multivariate spatial relationships among lake phosphorus, water color, and chlorophyll. The 2015 Ecological Society of America Annual Meeting, August 9 – 15. August 2015
Faulk, E. and T. Wagner. 2014. Stream Fish Communities in the Delaware Water Gap National Recreation Area: A Multi-Species Occupancy Approach. American Fisheries Society, 144th Annual Meeting, August 17-12. August 2014
Deweber, J.T. and T. Wagner. 2014. The future of brook trout in changing climate and landscape. 70th Annual Northeast Fish & Wildlife Conference, Portland, Maine, April 13 –15. April 2014
Deweber, J.T. and T. Wagner. 2014. A model for predicting daily river water temperature in the Northeast and its utility for management. 70th Annual Northeast Fish & Wildlife Conference, Portland, Maine, April 13 –15. April 2014
Deweber, J. T. and T. Wagner. 2013. Climate and land use change implications for native brook trout management. American Fisheries Society Pennsylvania Chapter Fall Technical Meeting. October 2013
DeWeber, T. and T. Wagner. 2015. Predicting Mean Daily River Water Temperature to Identify Brook Trout Habitat. American Fisheries Society Annual Meeting, Portland, Oregon. August 2015
DeWeber, T. and T. Wagner. 2015. Is That the Best Metric for Predicting Climate Change Effects on Brook Trout? American Fisheries Society Annual Meeting, Portland, Oregon. August 2015
Daniel, W., N. Sievert, D. Infante, C. Paukert, J. Stewart, J. Whittier, T. Wagner, K. Herreman, and Y. Tsang. FISHTAIL: A decision support mapper for conserving stream fish habitats of the NE CSC region Midwest Fish and Wildlife Conference, Indianapolis, IN. February 2015
Collins, S.M., S.K. Oliver, J-F. Lapierre, E.H. Stanley, J. Jones, T. Wagner, P.A. Soranno. 2016. What drives lake nutrients at continental scales, and why is it so hard to predict nutrient ratios? Association for the Sciences of Limnology and Oceanography. June 2016
Collins, S.M., S. Yuan, P.-N. Tan, S.K. Oliver, J.F. Lapierre, K.S. Cheruvelil, E. Fergus, N.K. Skaff, J. Stachelek, T. Wagner, P.A. Soranno. 2018.c. Society for Freshwater Science, Detroit MI. May 2018
Collins, S., K.S. Cheruvelil, E. Fergus, J.F. Lapierre, S. Oliver, J. Skaff, P.A. Soranno, P-N. Tan, T. Wagner, S. Yuan. 2017. Which measures of climate are the best predictors of lake water quality at sub-continental scales? Ecological Society of America Annual Meeting, Portland, OR. August 2017
Cheruvelil, K.S., T. Wagner, K. Webster, K. King, A. Poisson. 2018. Macroscale patterns and drivers of phosphorus and chlorophyll in shallow lakes. Association for the Sciences of Limnology and Oceanography, Summer Meeting, Victoria, BC, Canada. June 2018
Cheruvelil, K.S., S. Yuan, S. Collins, C.E. Fergus, C. Filstrup, E. Norton Henry, J-F. Lapierre, C. Scott, P. Soranno, P-N. Tan, T. Wagner, K. Webster. Including the freshwater landscape in a multi-themed regionalization system to capture macroscale patterns. The 2015 Ecological Society of America Annual Meeting, August 9 – 15. August 2015
Cheruvelil, K.S., P.A. Soranno, B. Liu, Q. Wang, P-N. Tan, J. Zhou, K.B.S. King, I.M. McCullough, J. Stachelek, M. Bartley, C.T. Filstrup, E.M. Hanks, J-F. Lapierre, N.R. Lottig, E.M. Schliep, T. Wagner, K.E. Webster. Ecological prediction at macroscales using big data: Does sampling design matter? ASLO-SFS Summer Meeting. June 2020
Brennan, J.C., S.R. Corsi, R.W. Gale, D.A. Alvarez, J.P. Berninger, J.K. Leet, Y. Li, T. Wagner, and D.E. Tillit. Factors affecting sampling strategies for an effects-directed analysis of EACs and identifying hotspots of concern for EAC contamination in water sources. ASLO-SFS Summer Meeting. June 2020
Technical Publications Publication Date
Wagner, T. 2007. The Statistical Power to Detect Temporal Trends in Catch per Unit Effort from Annual Gillnet Surveys for Walleye in Lake Erie. Technical report prepared for the Ohio Department of Natural Resources, Division of Wildlife, Lake Erie Fisheries Unit, Sandusky Fisheries Research Unit. Quantitative Fisheries Center Technical Report T2007-01. January 2007
Wagner, T. 2007. The Statistical Power to Detect Temporal Trends in Catch per Unit Effort from Annual Gillnet Surveys for Walleye in Lake Erie. Supplement I. Technical report prepared for the Ohio Department of Natural Resources, Division of Wildlife, Lake Erie Fisheries Unit, Sandusky Fisheries Research Unit. Quantitative Fisheries Center Technical Report T2007-02. January 2007
Lorantas, R., Wagner, T., Arnold, D., Detar, J., Kaufmann, M., Kuhn, K., Lorson, R., Wnuk, R., and Woomer, A. 2010. Smallmouth Bass Electrofishing Catch Rate in Large Pennsylvania Rivers and Examination of Smallmouth Bass Recruitment Indices. Technical Report, Pennsylvania Fish and Boat Commission. July 2010
Kristine, D., Detar, J., Lorantas, R., Lorson, R., Wagner, T., and DeMario, D. 2010. Biological Assessment of Experimental Panfish Enhancement Regulations on Select Pennsylvania Impoundments. Technical Report, Pennsylvania Fish and Boat Commission. January 2010
Jones, M. L., Arts, M. T., Faisal, M., Ebener, M P., Wagner, T., Brenden T. O., Honeyfield D., and Wright, G. 2008. Magnitude and potential causes of mortality in four lake whitefish populations in Lakes Michigan and Huron: a multidisciplinary approach. Great Lakes Fishery Trust Project Completion Report. January 2008
Irwin, B. J., T. Wagner, M. V. Kepler, W. Liu, J. R. Bence, D. B. Hayes, and N. Lester. 2011. Spatial and temporal components of variation in Great Lake percid populations: implications for conservation and management. Great Lakes Fish and Wildlife Restoration Act, Project Completion Report. June 2011
Diefenbach, D. R., B. J. Irwin, and T. Wagner. 2011. Summary of outcomes for the structured decision making workshop for catch and release trout regulations. State College, PA. March 2011
Congleton, J., T. Wagner, W. La Voie, J. Evavold, D Fryer, and B. Sun. 2001. Evaluation of the effects of physiological condition on comparative survival of transported juvenile salmon (DACW68-00-C-0030) Annual Report, 2000. US Army Core of Engineers, Walla Walla District, Walla Walla, WA. January 2000
Congleton, J., T. Wagner, J. Evavold, and B. Sun. 2002. Evaluation of the effects of physiological condition on comparative survival of transported juvenile salmon (DACW68-00-C-0030) Annual Report, 2001. US Army Core of Engineers, Walla Walla District, Walla Walla, WA. January 2001
Congleton, J., T. Wagner, D. Jones, J. Evavold, B. Sun, and J. Hafner. 2003. Evaluation of the effects of physiological condition on comparative survival of transported juvenile salmon (DACW68-00-C-0030) Annual Report, 2002. US Army Core of Engineers, Walla Walla District, Walla Walla, WA. January 2002
Congleton, J. L., T. Wagner, J. Evavold, D. Fryer, and B. Sun. 2002. Evaluation of physiological changes in migrating juvenile salmonids and effects on performance and survival (DACW68-00-C-0031) Annual Report, 2001. US Army Core of Engineers, Walla Walla District, Walla Walla, WA. January 2001