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Auteur T. Coppack |
Documents disponibles écrits par cet auteur (14)
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Article
M. I. Foerschler, Auteur ; K. H. Siebenrock, Auteur ; T. Coppack, AuteurIt is assumed that trade-offs between the costs of energy-efficient flight during migration and the costs of manoeuvrability cause wing shape to vary among birds that differ in migratory status. Migrants generally have more pointed wings than mo[...]![]()
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T. Coppack, Auteur ; A. P. Tottrup, Auteur ; C. Spottiswoode, AuteurMales of most migratory organisms, including many birds, precede female conspecifics on their journey to the breeding areas. Several hypotheses have been proposed to explain the evolution of protandrous migration, yet they have rarely been teste[...]![]()
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A. J. van Noordwijk, Auteur ; F. Pulido, Auteur ; B. Helm, Auteur ; T. Coppack, Auteur ; J. Delingat, Auteur ; H. Dingle, Auteur ; A. Hedenstrom, Auteur ; H. van der Jeugd, Auteur ; C. Marchetti, Auteur ; A. Nilsson, Auteur ; J. Perez-Tris, AuteurEvolutionary change results from selection acting on genetic variation. For migration to be successful, many different aspects of an animal's physiology and behaviour need to function in a co-coordinated way. Changes in one migratory trait are t[...]![]()
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A. P. Tottrup, Auteur ; K. Thorup, Auteur ; T. Coppack, Auteur ; K. Rainio, Auteur ; E. Lehikoinen, Auteur ; C. Rahbek, Auteur![]()
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T. Coppack, Auteur ; C. Both, AuteurDans Ardea (90(3) 2002)Analyses of long-term data indicate that human-caused climatic changes are affecting bird phenology in directions consistent with theoretical predictions. Here, we report on recent trends in the timing of spring arrival and egg laying found with[...]![]()
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M. Czisch, Auteur ; T. Coppack, Auteur ; P. Berthold, Auteur ; D. P. Auer, AuteurFor researchers working on the reproductive anatomy of birds, the standard tool has been the scalpel. We demonstrate. that magnetic resonance imaging (MRI) allows us to study non-invasively the testes and ovaries of small birds. Thus, repeated m[...]



