A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä

Home ground advantage: Local Atlantic salmon have higher reproductive fitness than dispersers in the wild




TekijätMobley KB, Granroth-Wilding H, Ellmen M, Vaha JP, Aykanat T, Johnston SE, Orell P, Erkinaro J, Primmer CR

KustantajaAMER ASSOC ADVANCEMENT SCIENCE

Julkaisuvuosi2019

JournalScience Advances

Tietokannassa oleva lehden nimiSCIENCE ADVANCES

Lehden akronyymiSCI ADV

Artikkelin numeroARTN eaav1112

Vuosikerta5

Numero2

Sivujen määrä8

ISSN2375-2548

eISSN2375-2548

DOIhttps://doi.org/10.1126/sciadv.aav1112

Rinnakkaistallenteen osoitehttps://research.utu.fi/converis/portal/detail/Publication/39908695


Tiivistelmä
A long-held, but poorly tested, assumption in natural populations is that individuals that disperse into new areas for reproduction are at a disadvantage compared to individuals that reproduce in their natal habitat, underpinning the eco-evolutionary processes of local adaptation and ecological speciation. Here, we capitalize on fine-scale population structure and natural dispersal events to compare the reproductive success of local and dispersing individuals captured on the same spawning ground in four consecutive parent-offspring cohorts of wild Atlantic salmon (Salmo salar). Parentage analysis conducted on adults and juvenile fish showed that local females and males had 9.6 and 2.9 times higher reproductive success than dispersers, respectively. Our results reveal how higher reproductive success in local spawners compared to dispersers may act in natural populations to drive population divergence and promote local adaptation over microgeographic spatial scales without clear morphological differences between populations.

Ladattava julkaisu

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Last updated on 2024-26-11 at 20:45