From local collective behavior to global migratory patterns in white storks

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Science. 2018, 360(6391), pp. 911-914. ISSN 0036-8075. eISSN 1095-9203. Available under: doi: 10.1126/science.aap7781
Zusammenfassung

Soaring migrant birds exploit columns of rising air (thermals) to cover large distances with minimal energy. Using social information while locating thermals may benefit such birds, but examining collective movements in wild migrants has been a major challenge for researchers. We investigated the group movements of a flock of 27 naturally migrating juvenile white storks by using high-resolution GPS and accelerometers. Analyzing individual and group movements on multiple scales revealed that a small number of leaders navigated to and explored thermals, whereas followers benefited from their movements. Despite this benefit, followers often left thermals earlier and at lower height, and consequently they had to flap considerably more. Followers also migrated less far annually than did leaders. We provide insights into the interactions between freely flying social migrants and the costs and benefits of collective movement in natural populations.

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570 Biowissenschaften, Biologie
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ISO 690FLACK, Andrea, Mate NAGY, Wolfgang FIEDLER, Iain D. COUZIN, Martin WIKELSKI, 2018. From local collective behavior to global migratory patterns in white storks. In: Science. 2018, 360(6391), pp. 911-914. ISSN 0036-8075. eISSN 1095-9203. Available under: doi: 10.1126/science.aap7781
BibTex
@article{Flack2018local-42607,
  year={2018},
  doi={10.1126/science.aap7781},
  title={From local collective behavior to global migratory patterns in white storks},
  number={6391},
  volume={360},
  issn={0036-8075},
  journal={Science},
  pages={911--914},
  author={Flack, Andrea and Nagy, Mate and Fiedler, Wolfgang and Couzin, Iain D. and Wikelski, Martin}
}
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