A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Translocation experiment of taiga bean geese Anser fabalis provides evidence for oblique social learning of moult migration
Tekijät: Sokolovskis, Kristaps; Piironen, Antti; Laaksonen, Toni
Kustantaja: Wiley
Kustannuspaikka: HOBOKEN
Julkaisuvuosi: 2024
Journal: Journal of Avian Biology
Tietokannassa oleva lehden nimi: Journal of Avian Biology
Lehden akronyymi: J AVIAN BIOL
Artikkelin numero: e03263
Sivujen määrä: 9
ISSN: 0908-8857
eISSN: 1600-048X
DOI: https://doi.org/10.1111/jav.03263
Verkko-osoite: https://doi.org/10.1111/jav.03263
Rinnakkaistallenteen osoite: https://research.utu.fi/converis/portal/detail/Publication/477081888
While there is ample evidence supporting genetic control of migratory behaviour in short-lived passerines, long-lived social species have been assumed to rely solely on cultural inheritance of migratory routes. Evidence from experimental studies supporting this idea is scarce. We tested whether the moult migration in taiga bean geese Anser fabalis has an inherited component or whether the birds need oblique social learning (where knowledge on migration is transferred from any experienced individual to any na & iuml;ve individual conspecific) to carry out this journey. In many waterfowl species, non-breeders and failed breeders migrate to remote places for wing moult while successful breeders stay at the breeding grounds and moult with their chicks. We translocated one-year-old taiga bean geese before their first moult migration to sites outside of the breeding range to examine whether they display innate moult migration behaviour without experienced conspecifics or not. The birds were equipped with GPS-transmitters and released in randomly assigned groups of two. Wild control one-year-old birds were released immediately after capture with other non-breeding geese, while a procedural control group consisting of older birds was held in captivity until being released at the same time with the translocated one-year-old birds but in the place where they were captured. Most translocated birds found conspecifics and either joined locally moulting breeders or followed experienced birds to moulting sites in Russia. Two of the translocated birds did not find other bean geese and settled to moult together in southwest Finland. The wild control birds moult-migrated as expected, while only one of the procedural control birds moult-migrated to Russia and the remaining three stayed with locally moulting breeders in Finland. Our results support the idea that moult migration in geese is culturally inherited, highlighting the importance of the non-relative, experienced adult individuals in maintaining population-specific behaviours.
Ladattava julkaisu This is an electronic reprint of the original article. |  |
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The study was funded by the University of Turku (a grant to TL).
