Publikation:

Natal legacies cause social and spatial marginalization during dispersal

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2024

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Catitti, Benedetta
Grüebler, Martin U.
Kormann, Urs G.

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European Union (EU): 850859
European Union (EU): 850859

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Ecology Letters. Wiley. 2024, 27(2), e14366. ISSN 1461-023X. eISSN 1461-0248. Available under: doi: 10.1111/ele.14366

Zusammenfassung

Early-life experiences can drive subsequent variation in social behaviours, but how differences among individuals emerge remains unknown. We combined experimental manipulations with GPS-tracking to investigate the pathways through which developmental conditions affect social network position during the early dispersal of wild red kites (Milvus milvus). Across 211 juveniles from 140 broods, last-hatched chicks—the least competitive—had the fewest number of peer encounters after fledging. However, when food supplemented, they had more encounters than all others. Using 4425 bird-days of GPS data, we revealed that this was driven by differential responses to competition, with less competitive individuals naturally spreading out into marginal areas, and clustering in central foraging areas when food supplemented. Our results suggest that early-life adversities can cause significant natal legacies on individual behaviour beyond independence, with potentially far-reaching consequences on the social and spatial structure of animal populations.

Zusammenfassung in einer weiteren Sprache

Fachgebiet (DDC)
570 Biowissenschaften, Biologie

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carry- over effects, development, early-life effects, individual phenotype, natal dispersal, prospecting, raptor, social network, sociality, transience

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ISO 690CATITTI, Benedetta, Martin U. GRÜEBLER, Damien R. FARINE, Urs G. KORMANN, 2024. Natal legacies cause social and spatial marginalization during dispersal. In: Ecology Letters. Wiley. 2024, 27(2), e14366. ISSN 1461-023X. eISSN 1461-0248. Available under: doi: 10.1111/ele.14366
BibTex
@article{Catitti2024Natal-69321,
  year={2024},
  doi={10.1111/ele.14366},
  title={Natal legacies cause social and spatial marginalization during dispersal},
  number={2},
  volume={27},
  issn={1461-023X},
  journal={Ecology Letters},
  author={Catitti, Benedetta and Grüebler, Martin U. and Farine, Damien R. and Kormann, Urs G.},
  note={Article Number: e14366}
}
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