Eco-evolutionary dynamics in Pacific salmon

Eco-evolutionary dynamics in Pacific salmon

Increasing acceptance of the idea that evolution can proceed rapidly has generated considerable interest in understanding the consequences of ongoing evolutionary change for populations, communities and ecosystems. The nascent field of 'eco-evolutionary dynamics' considers these interactio...

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Bibliographic Details
Published in:Heredity 2011-03, Vol.106 (3), p.438-447
Main Authors: Carlson, S M, Quinn, T P, Hendry, A P
Format: Article
Language:eng
Subjects:
Adaptation, Physiological
Animal populations
Animals
Aquatic ecology
Biological Evolution
Community ecology
Ecosystem
Evolution & development
Female
Fresh Water
Genotype & phenotype
Male
Models, Biological
Oncorhynchus
Oncorhynchus - anatomy & histology
Oncorhynchus - genetics
Oncorhynchus - physiology
Original
Population Dynamics
Salmon
Seawater
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Summary:Increasing acceptance of the idea that evolution can proceed rapidly has generated considerable interest in understanding the consequences of ongoing evolutionary change for populations, communities and ecosystems. The nascent field of 'eco-evolutionary dynamics' considers these interactions, including reciprocal feedbacks between evolution and ecology. Empirical support for eco-evolutionary dynamics has emerged from several model systems, and we here present some possibilities for diverse and strong effects in Pacific salmon (Oncorhynchus spp.). We specifically focus on the consequences that natural selection on body size can have for salmon population dynamics, community (bear-salmon) interactions and ecosystem process (fluxes of salmon biomass between habitats). For example, we find that shifts in body size because of selection can alter fluxes across habitats by up to 11% compared with ecological (that is, numerical) effects. More generally, we show that selection within a generation can have large effects on ecological dynamics and so should be included within a complete eco-evolutionary framework.
ISSN:0018-067X
1365-2540