picture of Peter Westley

Peter Westley

Assistant Professor

Fisheries and Conservation
Fisheries Ecology
233 O'Neill
905 N. Koyukuk Drive
Fairbanks, AK 99775
(907) 474-7458
(907) 474-7204
Office Hours
Open door policy. Feel free to come by
University of Washington (Fisheries)
University of Washington (Fisheries)
Memorial University of Newfoundland, Canada (Biology)
University of Washington (Fisheries)
  • Morgan Sparks
  • Casey McConnell
Veinott, G., P.A.H Westley, C.F. Purchase, and L.Warner. 2014. Experimental evidence simultaneously confirms and contests assumptions implicit to otolith microchemistry research. CJFAS . 71:356-365.

Berdahl, A., P.A.H. Westley, S. Levin, I. Couzin, and T.P. Quinn.. 2014. A collective navigation hypothesis for homeward migration in anadromous salmonids. Fish and Fisheries..

Carlson, S.M., C. Cunningham, and P.A.H. Westley. 2014. Evolutionary rescue in a changing world Trends in Ecology and Evolution . 29

Westley, P.A.H., T.P. Quinn, and A.H. Dittman. 2013. Straying by hatchery-produced Pacific salmon and steelhead differs among species, life history, and population CJFAS. 70:735-746.

Westley, P.A.H.,R. Stanley, and I.A. Fleming.. 2013. Experimental tests for heritable morphological color plasticity in non-native brown trout populations PLoS ONE. 8(11): e80401. doi: doi:10.1371/journal.pone.0080401

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. 280:20131047.

Westley, P.A.H, C.M. Conway, and I.A. Fleming. . 2012. Phenotypic divergence of exotic fish populations is shaped by spatial proximity and habitat differences across an invaded landscape. Evolutionary Ecology Research. 14:147-167.

Westley, P.A.H, E.J. Ward, and I.A. Fleming.. 2012. Fine-scale local adaptation in an invasive freshwater fish has evolved in contemporary time. Proceedings of the Royal Society: B. . 280(20122327)

Westley, P.A.H.. 2011. What invasive species reveal about the rate and form of contemporary phenotypic change in nature American Naturalist. 177:496-509.

Westley, P.A.H. and I.A. Fleming. 2011. Landscape factors that shape a slow and persistent biological invasion: brown trout in Newfoundland 1883-2010 Diversity & Distributions. 17:566-579.

Westley, P.A.H., D.E. Schindler, T.P. Quinn, G.R. Ruggerone, and R. Hilborn. . 2010. Natural habitat change, commercial fishing, climate, and dispersal interact to restructure an Alaskan fish metacommunity Oecologia. 163:471-484.

  • 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
Current Research Projects
  • Causes and consequences of chum salmon straying in Southeast Alaska
  • Adaptation of Bristol Bay sockeye salmon to a warming world
  • Collective navigation during homing migrations by salmonids
  • Evolutionary rescue as villain and savior in nature
  • Patterns and processes in straying by Pacific salmon and steelhead
  • Adaptive phenotypic plasticity and successful invasion
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