A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Home ground advantage: Local Atlantic salmon have higher reproductive fitness than dispersers in the wild
Tekijät: Mobley KB, Granroth-Wilding H, Ellmen M, Vaha JP, Aykanat T, Johnston SE, Orell P, Erkinaro J, Primmer CR
Kustantaja: AMER ASSOC ADVANCEMENT SCIENCE
Julkaisuvuosi: 2019
Journal: Science Advances
Tietokannassa oleva lehden nimi: SCIENCE ADVANCES
Lehden akronyymi: SCI ADV
Artikkelin numero: ARTN eaav1112
Vuosikerta: 5
Numero: 2
Sivujen määrä: 8
ISSN: 2375-2548
eISSN: 2375-2548
DOI: https://doi.org/10.1126/sciadv.aav1112
Rinnakkaistallenteen osoite: https://research.utu.fi/converis/portal/detail/Publication/39908695
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 This is an electronic reprint of the original article. |  |
