This research investigates the interaction between selection, gene flow, adaptation, reproductive isolation, and population dynamics. The above photo shows stickleback from Misty Lake (top in the above and left in the below) and from the stream that flows into Misty Lake (bottom in the above and right in the below). In short, we have found that natural selection promotes the adaptive divergence of lake and stream stickleback, but that the magnitude of divergence – and even population persistence – can be constrained by gene flow. We are also examining whether adaptive divergence feeds back on gene flow by causing the evolution of reproductive isolation (i.e., ecological speciation).
Stickleback field work – video montage:
Some of our stickleback blog posts:
· Haida Gwaii, BC, 2014 expedition
1. Thompson, C.J., N.I. Ahmed, T. Veen, C.L. Peichel, A.P. Hendry, D.I. Bolnick, and Y.E. Stuart. Many-to-one form-to-function mapping weakens parallel evolution. Evolution. In press.
2. Hanson, D., J. Hu, A.P. Hendry, and R.D.H. Barrett. Heritable gene expression differences between lake and stream stickleback include both parallel and anti-parallel components. Heredity. In press.
3. Stuart, Y.E., T. Veen, J.N. Weber, D. Hanson, M. Ravinet, B.K. Lohman, C.J. Thompson, T. Tasneem, A. Doggett, R. Izen, N. Ahmed, R.D.H. Barrett, A.P. Hendry, C.L. Peichel, and D.I. Bolnick. 2017. Contrasting effects of environment and genetics generate a predictable continuum of parallel evolution. Nature Ecology and Evolution 1:0158. PDF
4. Oke, K.B., G. Rolshausen, C. LeBlond, and A.P. Hendry. 2017. How parallel is parallel evolution? A comparative analysis in fishes. American Naturalist 190:1-16. PDF
5. Hanson, D., J.-S. Moore, E.B. Taylor, R.D.H. Barrett, and A.P. Hendry. 2016. Assessing reproductive isolation using a contact zone between parapatric lake-stream stickleback ecotypes. Journal of Evolutionary Biology 29:2491-2501. PDF
6. Oke, K.B., M. Bukhari, R. Kaeuffer, G. Rolshausen, K. Räsänen, D.I. Bolnick, C.L. Peichel, and A.P. Hendry. 2016. Does plasticity enhance or dampen phenotypic parallelism? A test with three lake-stream stickleback pairs. Journal of Evolutionary Biology 29:126–143. PDF
7. Hanson, D., R. Barrett, and A.P. Hendry. 2016. Testing for parallel allochronic isolation in lake-stream stickleback. Journal of Evolutionary Biology 29:47–57. PDF
8. Rolshausen, G., S. Muttalib, R. Kaeuffer, K. B. Oke, D. Hanson, and A.P. Hendry. 2015. When maladaptive gene flow does not increase selection. Evolution 69:2289–2302. PDF
9. Roesti, M., S. Gavrilets, A.P. Hendry, W. Salzburger, and D. Berner. 2014. The genomic signature of parallel adaptation from shared genetic variation. Molecular Ecology 23:3944-3956. PDF
10. Räsänen, K., and A.P. Hendry. 2014. Asymmetric reproductive barriers and mosaic reproductive isolation: insights from Misty lake-stream stickleback. Ecology and Evolution 4:1166-1175. PDF
11. Hendry, A.P., R. Kaeuffer, E. Crispo, C.L. Peichel, and D.I. Bolnick. 2013. Evolutionary inferences from the analysis of exchangeability. Evolution 67:3429-3441. PDF
12. Hendry, A.P., C.L. Peichel, B. Matthews, J.W. Boughman, and P. Nosil. 2013. Stickleback research: the now and the next. Evolutionary Ecology Research 15:111-141. PDF
13. Hendry, A.P., A.S. Hendry, and C.A. Hendry. 2013. Hendry Vineyard Stickleback: testing for contemporary lake-stream divergence. Evolutionary Ecology Research 15: 343-359. PDF
14. Baker, J.A., K. Räsänen, J.-S. Moore, and A.P. Hendry. 2013. Genetic and plastic contributions to trait divergence between parapatric habitats: female life-history traits in threespine stickleback from the Misty Lake system. Evolutionary Ecology Research 15:473-487. PDF
15. Roesti, M., A.P. Hendry, W. Salzburger, and D. Berner. 2012. Genome divergence during evolutionary diversification revealed in replicate lake-stream stickleback population pairs. Molecular Ecology 21:2852-2862. PDF
16. Räsänen, K., M. Delcourt, L.J. Chapman, and A.P. Hendry. 2012. Divergent selection and then what not: the puzzle of missing reproductive isolation in Misty lake and stream stickleback. International Journal of Ecology. Article ID 902438. PDF
17. Kaeuffer, R., Peichel, C.L., D. Bolnick, and A.P. Hendry. 2012. Parallel and non-parallel aspects of ecological, phenotypic, and genetic divergence across replicate population pairs of lake and stream stickleback. Evolution 66:402-418. PDF
18. Berner, D., R. Kaeuffer, A.-C. Grandchamp, J.A.M. Raeymaekers, K. Räsänen, and A.P. Hendry. 2011. Quantitative genetic inheritance of morphological divergence in a lake-stream stickleback ecotype pair: implications for reproductive isolation. Journal of Evolutionary Biology 24:1975-1983. PDF
19. Hendry, A.P., K. Hudson, J.A. Walker, K. Räsänen, and L. Chapman. 2011. Genetic divergence in morphology-performance mapping between Misty Lake and inlet stickleback. Journal of Evolutionary Biology 24:23-35. PDF
20. Raeymaekers, J.A.M., M. Boisjoly, L. Delaire, D. Berner, K. Räsänen, and A.P. Hendry. 2010. Testing for mating isolation between ecotypes: laboratory experiments with lake, stream, and hybrid stickleback. Journal of Evolutionary Biology 23:2694-2798. PDF
21. Berner, D., M. Rosti, A.P. Hendry, and W. Salzburger. 2010. Constraints on speciation suggested by comparing lake-stream stickleback divergence across two continents. Molecular Ecology 19:4963-4978. PDF
22. Hendry, A. P., D. I. Bolnick, D. Berner, and C. L. Peichel. 2009. Along the speciation continuum in stickleback. Journal of Fish Biology 75:2000-2036. PDF
23. Berner, D., A.-C. Grandchamp, and A.P. Hendry. 2009. Variable progress toward ecological speciation in parapatry: stickleback across eight lake-stream transitions. Evolution 63:1740-1753. PDF
24. Moore, J.-S., and A.P. Hendry. 2009. Can gene flow have negative demographic consequences? Mixed evidence from stream threespine stickleback. Philosophical Transactions of the Royal Society B. Biological Sciences 364:1533-1542. PDF
25. Raeymaekers, J.A.M., L. Delaire, and A.P. Hendry. 2009. Genetically-based differences in nest characteristics between lake, inlet, and hybrid threespine stickleback from the Misty system, British Columbia, Canada. Evolutionary Ecology Research 11:905–919. PDF
26. Sharpe, D.M.T., K. Räsänen, D. Berner, A.P. Hendry. 2008. Genetic and environmental contributions to the morphology of lake and stream stickleback: implications for gene flow and reproductive isolation. Evolutionary Ecology Research 10:849-866. PDF
27. Berner, D., D.C. Adams, A.-C. Grandchamp, and A.P. Hendry. 2008. Natural selection drives patterns of lake-stream divergence in stickleback foraging morphology. Journal of Evolutionary Biology 21:1653-1665. PDF
28. Delcourt, M., K. Räsänen, and A.P. Hendry. 2008. Genetic and plastic components of divergent male intersexual behavior in Misty lake/stream stickleback. Behavioral Ecology 19:1217-1224. PDF
29. Moore, J.-S., J.L. Gow, E.B. Taylor, and A.P. Hendry. 2007. Quantifying the constraining influence of gene flow on adaptive divergence in the lake-stream threespine stickleback system. Evolution 61:2015-2026. PDF
30. Moore, J.-S., and A.P. Hendry. 2005. Both selection and gene flow are necessary to explain adaptive divergence: evidence from clinal variation in stream stickleback. Evolutionary Ecology Research 7:781-886. PDF
31. Hendry, A.P., and E.B. Taylor. 2004. How much of the variation in adaptive divergence can be explained by gene flow: an evaluation using lake/stream stickleback. Evolution 58:2319–2331. PDF
32. Hendry, A.P., E.B. Taylor, and J.D. McPhail. 2002. Adaptive divergence and the balance between selection and gene flow: lake and stream stickleback in the Misty system. Evolution 56:1199-1216. PDF
33. Hendry, A.P., T. Day, and E.B. Taylor. 2001. Population mixing and the adaptive divergence of quantitative characters in discrete populations: a theoretical framework for empirical tests. Evolution 55: 459-466. PDF
Curio: A new sympatric stickleback species pair? You be the judge.
“The male salmon is as pugnacious as the little stickleback” (Darwin 1871)
Back to Hendry lab page.