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Evolution of chain migration in an aerial insectivorous bird, the common swift Apus apus

Akesson, Susanne and Atkinson, Phil W. and Bermejo, Ana and de la Puente, Javier and Ferri, Mauro and Hewson, Chris M. and Holmgren, Jan and Kaiser, Erich and Kearsley, Lyndon and Klaassen, Raymond H. G. and Kolunen, Heikki and Matsson, Gittan and Minelli, Fausto and Norevik, Gabriel and Pietiäinen, Hannu and Singh, Navinder and Spina, Fernando and Viktora, Lukas and Hedenström, Anders (2020). Evolution of chain migration in an aerial insectivorous bird, the common swift Apus apus. Evolution. 74 , 2377-2391
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Abstract

Spectacular long-distance migration has evolved repeatedly in animals enabling exploration of resources separated in time and space. In birds, these patterns are largely driven by seasonality, cost of migration, and asymmetries in competition leading most often to leapfrog migration, where northern breeding populations winter furthest to the south. Here, we show that the highly aerial common swiftApus apus, spending the nonbreeding period on the wing, instead exhibits a rarely found chain migration pattern, where the most southern breeding populations in Europe migrate to wintering areas furthest to the south in Africa, whereas the northern populations winter to the north. The swifts concentrated in three major areas in sub-Saharan Africa during the nonbreeding period, with substantial overlap of nearby breeding populations. We found that the southern breeding swifts were larger, raised more young, and arrived to the wintering areas with higher seasonal variation in greenness (Normalized Difference Vegetation Index) earlier than the northern breeding swifts. This unusual chain migration pattern in common swifts is largely driven by differential annual timing and we suggest it evolves by prior occupancy and dominance by size in the breeding quarters and by prior occupancy combined with diffuse competition in the winter.

Authors/Creators:Akesson, Susanne and Atkinson, Phil W. and Bermejo, Ana and de la Puente, Javier and Ferri, Mauro and Hewson, Chris M. and Holmgren, Jan and Kaiser, Erich and Kearsley, Lyndon and Klaassen, Raymond H. G. and Kolunen, Heikki and Matsson, Gittan and Minelli, Fausto and Norevik, Gabriel and Pietiäinen, Hannu and Singh, Navinder and Spina, Fernando and Viktora, Lukas and Hedenström, Anders
Title:Evolution of chain migration in an aerial insectivorous bird, the common swift Apus apus
Year of publishing :2020
Volume:74
Page range:2377-2391
Number of Pages:15
ISSN:0014-3820
Language:English
Publication Type:Journal article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution-Noncommercial-No Derivative Works 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
Keywords:Annual timing, chain migration, common swift, diffuse competition, dominance by size, prior occupancy
URN:NBN:urn:nbn:se:slu:epsilon-p-108093
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-108093
Additional ID:
Type of IDID
DOI10.1111/evo.14093
Web of Science (WoS)000568303100001
ID Code:17815
Faculty:S - Faculty of Forest Sciences
Department:(S) > Dept. of Wildlife, Fish and Environmental Studies
Deposited By: SLUpub Connector
Deposited On:14 Oct 2020 15:00
Metadata Last Modified:14 Oct 2020 15:01

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