Immigration counter‐acts local micro‐evolution of a major fitness component: Migration‐selection balance in free‐living song sparrows

Abstract Ongoing adaptive evolution, and resulting “evolutionary rescue” of declining populations, requires additive genetic variation in fitness. Such variation can be increased by gene flow resulting from immigration, potentially facilitating evolution. But, gene flow could in fact constrain rathe...

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Bibliographic Details
Main Authors: Jane M. Reid, Peter Arcese, Pirmin Nietlisbach, Matthew E. Wolak, Stefanie Muff, Lisa Dickel, Lukas F. Keller
Format: Article
Published: Wiley 2021-02-01
Series:Evolution Letters
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