Translocation experiment of taiga bean geese Anser fabalis provides evidence for oblique social learning of moult migration DOI Creative Commons
Kristaps Sokolovskis, Antti Piironen, Toni Laaksonen

et al.

Journal of Avian Biology, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 20, 2024

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 routes. Evidence from experimental studies this idea scarce. We tested whether the moult migration taiga bean geese Anser fabalis has an inherited component or birds need oblique learning (where knowledge transferred any experienced individual naïve conspecific) carry out journey. In many waterfowl species, non‐breeders and failed breeders migrate remote places for wing while successful stay at breeding grounds with their chicks. translocated one‐year‐old before first sites outside range examine they display innate without conspecifics not. The were equipped GPS‐transmitters released randomly assigned groups two. Wild immediately after capture other non‐breeding geese, a procedural group consisting older was held captivity until being same time but place where captured. Most found either joined locally moulting followed Russia. Two did not find settled together southwest Finland. wild moult‐migrated as expected, only one Russia remaining three stayed Our results support that culturally inherited, highlighting importance non‐relative, adult individuals maintaining population‐specific behaviours.

Language: Английский

Migratory herbivorous waterfowl track multiple resource waves during spring migration DOI Creative Commons
Fei Xu, Wei Wu, Jie Wei

et al.

Proceedings of the Royal Society B Biological Sciences, Journal Year: 2024, Volume and Issue: 291(2030)

Published: Sept. 1, 2024

East Asian herbivorous waterfowl intensively use farmland in spring, next to their natural habitat. Accordingly, they might have expanded migration strategy from merely tracking the green wave of newly emerging vegetation also incorporating availability post-harvest agricultural seeds (here dubbed seed wave). However, if and how multiple food resources time seasonal is still unknown. We test this using 167 spring tracks five species mixed-effect resource selection function models. found that all study arrived at core stopover sites Northeast China Plain after became available, extended stay emerged breeding around emergence vegetation. At sites, used snowmelt as a cue track availability, although smaller-bodied tended arrive later. swans tracked onset geese mid- or end phases snowmelt. Our findings suggest waves fine-tune migration, highlighting new opportunities for conservation.

Language: Английский

Citations

2
Translocation experiment of taiga bean geese Anser fabalis provides evidence for oblique social learning of moult migration DOI Creative Commons
Kristaps Sokolovskis, Antti Piironen, Toni Laaksonen

et al.

Journal of Avian Biology, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 20, 2024

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 routes. Evidence from experimental studies this idea scarce. We tested whether the moult migration taiga bean geese Anser fabalis has an inherited component or birds need oblique learning (where knowledge transferred any experienced individual naïve conspecific) carry out journey. In many waterfowl species, non‐breeders and failed breeders migrate remote places for wing while successful stay at breeding grounds with their chicks. translocated one‐year‐old before first sites outside range examine they display innate without conspecifics not. The were equipped GPS‐transmitters released randomly assigned groups two. Wild immediately after capture other non‐breeding geese, a procedural group consisting older was held captivity until being same time but place where captured. Most found either joined locally moulting followed Russia. Two did not find settled together southwest Finland. wild moult‐migrated as expected, only one Russia remaining three stayed Our results support that culturally inherited, highlighting importance non‐relative, adult individuals maintaining population‐specific behaviours.

Language: Английский

Citations

1