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A full annual persp...
A full annual perspective on sex-biased migration timing in long-distance migratory birds
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- Briedis, Martins (författare)
- Swiss Ornithol Inst, Dept Bird Migrat, Sempach, Switzerland
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- Bauer, Silke (författare)
- Swiss Ornithol Inst, Dept Bird Migrat, Sempach, Switzerland
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- Adamik, Peter (författare)
- Palacky Univ, Dept Zool, Olomouc, Czech Republic;Museum Nat Hist, Olomouc, Czech Republic
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- Alves, Jose A. (författare)
- Univ Aveiro, Dept Biol, Aveiro, Portugal;Univ Aveiro, Ctr Environm & Marine Studies CESAM, Aveiro, Portugal;Univ Iceland, South Iceland Res Ctr, Laugarvatn, Iceland
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- Costa, Joana S. (författare)
- Univ Aveiro, Dept Biol, Aveiro, Portugal;Univ Aveiro, Ctr Environm & Marine Studies CESAM, Aveiro, Portugal
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- Emmenegger, Tamara (författare)
- Swiss Ornithol Inst, Dept Bird Migrat, Sempach, Switzerland
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- Gustafsson, Lars, Professor, 1953- (författare)
- Uppsala universitet,Zooekologi
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- Kolecek, Jaroslav (författare)
- Czech Acad Sci, Inst Vertebrate Biol, Brno, Czech Republic
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- Liechti, Felix (författare)
- Swiss Ornithol Inst, Dept Bird Migrat, Sempach, Switzerland
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- Meier, Christoph M. (författare)
- Swiss Ornithol Inst, Dept Bird Migrat, Sempach, Switzerland
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- Prochazka, Petr (författare)
- Czech Acad Sci, Inst Vertebrate Biol, Brno, Czech Republic
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- Hahn, Steffen (författare)
- Swiss Ornithol Inst, Dept Bird Migrat, Sempach, Switzerland
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(creator_code:org_t)
- 2019-02-20
- 2019
- Engelska.
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Ingår i: Proceedings of the Royal Society of London. Biological Sciences. - : The Royal Society. - 0962-8452 .- 1471-2954. ; 286:1897
- Relaterad länk:
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https://royalsociety...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- In many taxa, the most common form of sex-biased migration timing is protandry – the earlier arrival of males at breeding areas. Here we test this concept across the annual cycle of long-distance migratory birds. Using more than 350 migration tracks of small-bodied trans-Saharan migrants, we quantify differences in male and female migration schedules and test for proximate determinants of sex-specific timing. In autumn, males started migration about 2 days earlier, but this difference did not carry over to arrival at the non-breeding sites. In spring, males on average departed from the African non-breeding sites about 3 days earlier and reached breeding sites ca 4 days ahead of females. A cross-species comparison revealed large variation in the level of protandry and protogyny across the annual cycle. While we found tight links between individual timing of departure and arrival within each migration season, only for males the timing of spring migration was linked to the timing of previous autumn migration. In conclusion, our results demonstrate that protandry is not exclusively a reproductive strategy but rather occurs year-round and the two main proximate determinants for the magnitude of sex-biased arrival times in autumn and spring are sex-specific differences in departure timing and migration duration.
Ämnesord
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
Nyckelord
- annual cycle
- geolocator
- long-distance migrant
- migration phenology
- protandry
- protogyny
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Briedis, Martins
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Bauer, Silke
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Adamik, Peter
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Alves, Jose A.
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Costa, Joana S.
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Emmenegger, Tama ...
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visa fler...
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Gustafsson, Lars ...
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Kolecek, Jarosla ...
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Liechti, Felix
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Meier, Christoph ...
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Prochazka, Petr
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Hahn, Steffen
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visa färre...
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Uppsala universitet