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Migration distance ...
Migration distance affects stopover use but not travel speed : contrasting patterns between long- and short-distance migrating ospreys
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- Monti, Flavio (author)
- Paul Valéry University of Montpellier,University of Siena,University of Ferrara
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- Grémillet, David (author)
- Paul Valéry University of Montpellier,University of Cape Town
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- Sforzi, Andrea (author)
- Natural History Museum of Maremma
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- Dominici, Jean Marie (author)
- Regional Natural Park of Corsica
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- Bagur, Rafel Triay (author)
- Institut Menorquí d'Estudis
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- Navarro, Antoni Muñoz (author)
- The Balearic Ornithological Group, GOB
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- Fusani, Leonida (author)
- University of Veterinary Medicine Vienna,University of Vienna
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- Klaassen, Raymond H.G. (author)
- University of Groningen
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- Alerstam, Thomas (author)
- Lund University,Lunds universitet,Evolutionär ekologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Evolutionary ecology,Department of Biology,Faculty of Science
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- Duriez, Olivier (author)
- Paul Valéry University of Montpellier
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(creator_code:org_t)
- 2018-10-22
- 2018
- English.
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In: Journal of Avian Biology. - : Wiley. - 0908-8857. ; 49:10
- Related links:
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http://dx.doi.org/10...
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https://pure.rug.nl/...
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https://doi.org/10.1...
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Abstract
Subject headings
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- The development of migratory behaviour is a continuous process which is not only determined by genes, but also moulded by individual differences based on life-history variations occurring at each ontogenetic stage. Assessing consistency and plasticity in migratory traits between long distance (LDM) and short distance migratory (SDM) populations within the same species that may express dissimilarities in the leeway of annual schedules is essential to understand the evolution and ontogeny of migratory strategies. We studied the migration strategies in autumn regarding flight speed and the use of stopovers (number and duration of stop-overs across the whole journey) at the intra-specific level, by tracking with GPS loggers the intercontinental migration of 43 adult and juvenile ospreys Pandion haliaetus from both LDM and SDM populations. LDM ospreys travelled distances five times larger than SDM ospreys, but their total migration speed was 2.4 times slower. While daily distance travelled did not differ between populations, the reduced total migration speed by LDMs was due to higher stopover use compared to SDM birds. SDM birds used more direct routes, crossing open sea at higher flight speeds, even though both populations largely benefitted from wind assistance across their journey. Across populations, adult birds travelled longer distances per day and displayed less sinuous migratory paths than juveniles, suggesting that migratory capabilities improve with age and experience of the bird. Overall, the time constraint related to total migration distance was not the main driver of the total migration speed, and other factors such as physiological needs to rest and refuel at stopover sites may play an important role. Our study underlines the importance of investigating variability in migration strategies in partially migratory species, for a better understanding of avian migratory ecology.
Subject headings
- NATURVETENSKAP -- Biologi -- Evolutionsbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Evolutionary Biology (hsv//eng)
- NATURVETENSKAP -- Biologi -- Zoologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Zoology (hsv//eng)
Keyword
- GPS tracking
- migratory strategy
- raptor
Publication and Content Type
- art (subject category)
- ref (subject category)
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To the university's database
- By the author/editor
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Monti, Flavio
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Grémillet, David
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Sforzi, Andrea
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Dominici, Jean M ...
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Bagur, Rafel Tri ...
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Navarro, Antoni ...
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show more...
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Fusani, Leonida
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Klaassen, Raymon ...
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Alerstam, Thomas
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Duriez, Olivier
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Evolutionary Bio ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Zoology
- Articles in the publication
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Journal of Avian ...
- By the university
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Lund University