Breeding origins of a uniquely regular migrant songbird in the Galapagos Islands.

ABSTRACT: Little is known about the causes and consequences of alternative pathways flown by long-distance migratory birds. Bobolinks (Dolichonyx oryzivorus) breed in grasslands across northern North America and migrate from their breeding grounds toward the eastern Atlantic Coast and then proceed through the Caribbean to South America. However, a small but regular number of Bobolinks have been recorded on the Galapagos Islands. We collected genetic samples from nine Galapagos Bobolinks and performed double-digest restriction site-associated sequencing. We compared them with samples from seven locations across their breeding distribution to determine their population of origin. Galapagos Bobolinks shared the genetic structure of a cluster in the eastern portion of the breeding range that incl

SUBMITTER: Perlut N 

PROVIDER: S-EPMC9842894 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature