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

Show full item record



Permalink

http://hdl.handle.net/10138/300462

Citation

Mobley , K B , Granroth-Wilding , H , Ellmen , M , Vaha , J-P , Aykanat , T , Johnston , S E , Orell , P , Erkinaro , J & Primmer , C R 2019 , ' Home ground advantage : Local Atlantic salmon have higher reproductive fitness than dispersers in the wild ' , Science Advances , vol. 5 , no. 2 , 1112 . https://doi.org/10.1126/sciadv.aav1112

Title: Home ground advantage : Local Atlantic salmon have higher reproductive fitness than dispersers in the wild
Author: Mobley, Kenyon B.; Granroth-Wilding, Hanna; Ellmen, Mikko; Vaha, Juha-Pekka; Aykanat, Tutku; Johnston, Susan E.; Orell, Panu; Erkinaro, Jaakko; Primmer, Craig R.
Contributor: University of Helsinki, Evolution, Conservation, and Genomics
University of Helsinki, Behavioural Ecology - Candolin Research Lab
University of Helsinki, Evolution, Conservation, and Genomics
University of Helsinki, Helsinki Institute of Sustainability Science (HELSUS)
Date: 2019-02
Language: eng
Number of pages: 8
Belongs to series: Science Advances
ISSN: 2375-2548
URI: http://hdl.handle.net/10138/300462
Abstract: 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.
Subject: GENE FLOW
ADAPTATION
EVOLUTION
SELECTION
PACIFIC
SALAR
DIFFERENTIATION
CONSEQUENCES
IMMIGRANTS
MIGRATION
1181 Ecology, evolutionary biology
Rights:


Files in this item

Total number of downloads: Loading...

Files Size Format View
eaav1112.full.pdf 432.0Kb PDF View/Open

This item appears in the following Collection(s)

Show full item record