| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
Nutrients from salmon parents alter selection pressures on their offspring
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| Autores: |
Auer, Sonya K.
Anderson, Graeme J.
Mckelvey, Simon
Bassar, Ronald D.
Mclennan, Darryl
Armstrong, John D.
Nislow, Keith H.
Downie, Helen K.
Mckelvey, Lynn
Morgan, Thomas A. J.
Salin, Karine
Orrell, Danielle L.
Gauthey, Alice
Reid, Thomas C.
Metcalfe, Neil B.
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| Data: |
2018-02
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| Ano: |
2018
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| Palavras-chave: |
Eco-evolutionary dynamics
Eco-evolutionary feedbacks
Natural selection
Niche construction
Salmo salar
Selection differential
Selection gradient
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| Resumo: |
Organisms can modify their surrounding environment, but whether these changes are large enough to feed back and alter their evolutionary trajectories is not well understood, particularly in wild populations. Here we show that nutrient pulses from decomposing Atlantic salmon (Salmo salar) parents alter selection pressures on their offspring with important consequences for their phenotypic and genetic diversity. We found a strong survival advantage to larger eggs and faster juvenile metabolic rates in streams lacking carcasses but not in streams containing this parental nutrient input. Differences in selection intensities led to significant phenotypic divergence in these two traits among stream types. Stronger selection in streams with low parental nutrient input also decreased the number of surviving families compared to streams with high parental nutrient levels. Observed effects of parent-derived nutrients on selection pressures provide experimental evidence for key components of eco-evolutionary feedbacks in wild populations.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
https://archimer.ifremer.fr/doc/00414/52586/53426.pdf
https://archimer.ifremer.fr/doc/00414/52586/53427.pdf
DOI:10.1111/ele.12894
https://archimer.ifremer.fr/doc/00414/52586/
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| Editor: |
Wiley
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| Formato: |
application/pdf
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| Fonte: |
Ecology Letters (1461-023X) (Wiley), 2018-02 , Vol. 21 , N. 2 , P. 287-295
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| Direitos: |
2017 The Authors. Ecology Letters published by CNRS and John Wiley & Sons Ltd
info:eu-repo/semantics/openAccess
restricted use
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