Data from: Home ground advantage: local Atlantic salmon have higher reproductive fitness than dispersers in the wild

dc.contributor.affiliationUniversity of Helsinki-Primmer, Craig R.
dc.contributor.authorPrimmer, Craig R.
dc.coverage.spatialTeno River
dc.coverage.spatialnorthern Finland
dc.date.accessioned2025-04-29T14:01:14Z
dc.date.issued2019-02-28
dc.date.issued2019-02-28
dc.descriptionA 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.
dc.identifierhttps://doi.org/10.5061/dryad.3ss2t53
dc.identifier.urihttps://datakatalogi.helsinki.fi/handle/123456789/4835
dc.rights.licensecc-zero
dc.subjectSalmo salar
dc.subjectseaage at maturity
dc.subjectstraying
dc.subjectreproductive fitness
dc.subjectgenotype
dc.subjectmaturation
dc.subjectgenetic population assignment
dc.subjectHolocene
dc.subjectreproductive success
dc.titleData from: Home ground advantage: local Atlantic salmon have higher reproductive fitness than dispersers in the wild
dc.typedataset
Zenodo


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