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Migratory connectivity and populationspecific migration routes in a long-distance migratory bird

Trierweiler, Christiane ; Klaassen, Raymond H. G. ; Drent, Rudi H. ; Exo, Klaus-Michael ; Komdeur, Jan ; Bairlein, Franz ; Koks, Ben J.

Proceedings of the Royal Society. B, Biological sciences, 2014-03, Vol.281 (1778), p.1-9 [Periódico revisado por pares]

The Royal Society

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  • Título:
    Migratory connectivity and populationspecific migration routes in a long-distance migratory bird
  • Autor: Trierweiler, Christiane ; Klaassen, Raymond H. G. ; Drent, Rudi H. ; Exo, Klaus-Michael ; Komdeur, Jan ; Bairlein, Franz ; Koks, Ben J.
  • Assuntos: Animal migration behavior ; Autumn ; Aviculture ; Birds ; Breeding ; Connectivity ; Harriers ; Population migration ; Seasonal migration ; Travel
  • É parte de: Proceedings of the Royal Society. B, Biological sciences, 2014-03, Vol.281 (1778), p.1-9
  • Descrição: Knowledge about migratory connectivity, the degree to which individuals from the same breeding site migrate to the same wintering site, is essential to understand processes affecting populations of migrants throughout the annual cycle. Here, we study the migration system of a long-distance migratory bird, the Montagu's harrier Circus pygargus, by tracking individuals from different breeding populations throughout northern Europe. We identified three main migration routes towards wintering areas in sub-Saharan Africa. Wintering areas and migration routes of different breeding populations overlapped, a pattern best described by 'weak (diffuse) connectivity'. Migratory performance, i.e. timing, duration, distance and speed of migration, was surprisingly similar for the three routes despite differences in habitat characteristics. This study provides, to our knowledge, a first comprehensive overview of the migration system of a Palaearctic-African long-distance migrant. We emphasize the importance of spatial scale (e.g. distances between breeding populations) in defining patterns of connectivity and suggest that knowledge about fundamental aspects determining distribution patterns, such as the among-individual variation in mean migration directions, is required to ultimately understand migratory connectivity. Furthermore, we stress that for conservation purposes it is pivotal to consider wintering areas as well as migration routes and in particular stopover sites.
  • Editor: The Royal Society
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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