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22 March 2022 Microsatellite markers yield new insight into extra-pair paternity in Bobolinks (Dolichonyx oryzivorus)
Emma M. White, Noah G. Perlut, Steven E. Travis, Allan M. Strong
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Abstract

Since the mid-1980s, our understanding of avian reproductive strategies has shifted as new molecular technologies have revealed how common promiscuity is in many monogamous avian species. However, the prevalence and importance of extra-pair paternity in polygynous species is less well studied. We used microsatellite loci from related icterid species to identify the extra-pair paternity rate in a polygynous population of Bobolinks (Dolichonyx oryzivorus) that bred in the Champlain Valley of Vermont from 2002 to 2018. We assigned paternity for 120 nestlings and found that 42% of nestlings were sired by extra-pair males. These results highlight the importance of extra-pair paternity in the reproductive behavior of Bobolinks that breed in agricultural habitats.

Emma M. White, Noah G. Perlut, Steven E. Travis, and Allan M. Strong "Microsatellite markers yield new insight into extra-pair paternity in Bobolinks (Dolichonyx oryzivorus)," The Wilson Journal of Ornithology 133(3), 476-483, (22 March 2022). https://doi.org/10.1676/20-00038
Received: 29 March 2020; Accepted: 1 October 2021; Published: 22 March 2022
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KEYWORDS
Icteridae
loci
Polygyny
Vermont
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