Genetic ancestry plays a key role in the migration of Cory's shearwaters
To what extent do genes influence the migratory routes of birds? The factors that determine the long-distance migrations of seabirds are not yet fully understood. Now, a study published in the journal Molecular Ecology reveals that, in the case of Cory's shearwater, an individual's genetic ancestry is a more significant factor in their migratory decisions than their social environment in the…
Genetic ancestry plays a significant role in determining the migratory routes of Cory's shearwaters, according to a study published in Molecular Ecology. Researchers found that individual birds' genetic backgrounds, rather than their social environment in breeding colonies, are a more critical factor in their migratory decisions.
Combining individual genomics with movement tracking could help design better protection strategies and identify key marine areas used by these birds throughout the year. The study also highlights that hybrid individuals, resulting from the interbreeding of Mediterranean and Atlantic Cory's shearwaters, exhibit migratory patterns that lie between those of their parental species.
This suggests a genetic basis for the long-distance migrations of these seabirds and emphasizes the importance of considering hybridization processes when developing conservation strategies that preserve evolutionary processes. The study's findings have implications for understanding connectivity between populations and the role of hybridization in conservation planning.
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