picture of Peter Westley

Peter Westley

Assistant Professor

Fisheries Conservation
Fisheries Ecology
College of Fisheries and Ocean Sciences
2150 Koyukuk Drive
AHRB 204
Fairbanks, AK 99775
907-474-7204 (fax)
Office Hours
Open door policy. Feel free to come by
Memorial University of Newfoundland, Canada
Ph.D. Biology
University of Washington
Postdoc. Fisheries
University of Washington
M.S. Fisheries
University of Washington
B.S. Fisheries
Cunningham, C.J., P.A.H. Westley, and M.D. Adkison. 2018. Signals of large scale climate drivers, hatchery enhancement, and marine factors in Yukon River Chinook salmon survival revealed with a Bayesian life history model. Global Change Biology. 24(9):43994416. doi: https://doi.org/10.1111/gcb.14315

McConnell, C.J., P.A.H. Westley, and M.V. McPhee. 2018. Differences in fitness-associated traits between hatchery and wild chum salmon despite long-term immigration by strays. Aquaculture Environment Interactions. 10:99113. doi: https://doi.org/10.3354/aei00261

Westley, P.A.H., A.M. Berdahl, C.J. Torney, and D. Biro. 2018. Collective movement in ecology: from emerging technologies to conservation and management. Philosophical Transactions of the Royal Society B: Biological Sciences. 373(1746) doi: https://doi.org/10.1098/rstb.2017.0004

Sparks, M.M., P.A.H. Westley, J.A. Falke, and T.P. Quinn. 2017. Thermal adaptation and phenotypic plasticity in a warming world: Insights from common garden experiments on Alaskan sockeye salmon. Global Change Biology. 23(12):52035217. doi: https://doi.org/10.1111/gcb.13782

Westley, P.A.H, A.H. Dittman, E.J. Ward, and T.P. Quinn. 2015. Signals of climate, conspecific density, and watershed features in patterns of homing and dispersal by Pacific salmon. Ecology. 96(10):28232833. doi: https://doi.org/10.1890/14-1630.1

Berdahl, A., P.A.H. Westley, S.A. Levin, I.D. Couzin, and T.P. Quinn. 2014. A collective navigation hypothesis for homeward migration in anadromous salmonids. Fish and Fisheries. 17(2):525542. doi: https://doi.org/10.1111/faf.12084

Carlson, S.M., C.J. Cunningham, and P.A.H. Westley. 2014. Evolutionary rescue in a changing world. Trends in Ecology and Evolution. 29(9):521530. doi: https://dx.doi.org/10.1016/j.tree.2014.06.005

Oke, K., P.A.H. Westley, D.T.R. Moreau, and I.A. Fleming. 2013. Hybridization between genetically modified Atlantic salmon and wild brown trout reveals novel ecological interactions. Proceedings of the Royal Society B: Biological Sciences. 280(1763) doi: https://doi.org/10.1098/rspb.2013.1047

Westley, P.A.H, E.J. Ward, and I.A. Fleming. 2013. Fine-scale local adaptation in an invasive freshwater fish has evolved in contemporary time. Proceedings of the Royal Society B: Biological Sciences. 280(1751) doi: https://dx.doi.org/10.1098%2Frspb.2012.2327

Westley, P.A.H., T.P. Quinn, and A.H. Dittman. 2013. Rates of straying by hatchery-produced Pacific salmon (Oncorhynchus spp.) and steelhead (Oncorhynchus mykiss) differ among species, life history types, and populations. Canadian Journal of Fisheries and Aquatic Sciences. 70(5):735746. doi: https://doi.org/10.1139/cjfas-2012-0536

Westley, P.A.H.. 2011. What invasive species reveal about the rate and form of contemporary phenotypic change in nature. American Naturalist. 177(4):496509. doi: https://doi.org/10.1086/658902

Westley, P.A.H., and I.A. Fleming. 2011. Landscape factors that shape a slow and persistent aquatic invasion: brown trout in Newfoundland 18832010. Diversity and Distributions. 17(3):566579. doi: https://doi.org/10.1111/j.1472-4642.2011.00751.x

Westley, P.A.H., D.E. Schindler, T.P. Quinn, G.T. Ruggerone, and R. Hilborn. 2010. Natural habitat change, commercial fishing, climate, and dispersal interact to restructure an Alaskan fish metacommunity. Oecologia. 163(2):471484. doi: https://doi.org/10.1007/s00442-009-1534-3

  • Phenotypic plasticity
  • Life history evolution
  • Dispersal and philopatry
  • Contemporary evolution
  • Aquatic invasions and colonization
  • Eco-evolutionary dynamics
Research Overview
We live in the Anthropocene, where global ecology is dominated by human activity. My research seeks to understand how fishes respond and adapt to abrupt environmental change across levels of biological organization. Work in my lab addresses this overarching question through the combination of field, laboratory, meta-analysis, and modeling approaches.

Additionally, I have pending proposals to explore aspects of the pike invasion to Southcentral Alaska and to apply stage-specific salmon life cycle models to Western Alaska Chinook populations.
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