ArticleEcology and evolution2026
Genetics, Not Weather, Informs Migration Behaviors in a Long-Distance Migrant Songbird.
Article in Ecology and evolution, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Migration is the riskiest portion of the annual breeding cycle, with long-distance migratory birds enduring long periods of varied landscapes, dangerous weather, and geographical barriers such as long stretches of open water. Therefore, birds utilize a combination of both innate (i.e., genetic) and environmental cues to maximize their chances of survival during migration. Studies have suggested that short-distance migrants are more likely to adjust migration timing to match non-endogenous cues like local weather conditions, while long-distance migrants rely heavily on genetically-ingrained behaviors to determine the start of spring migration. While many studies have examined the effects of environmental variables and genetics individually, few have examined the combined effects of these influences throughout the annual cycle of a migratory songbird species. We examined the correlation of both genetics and the environmental conditions experienced by a long-distance migrant, the Bobolink (
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