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Birds of a feather winter together: migratory connectivity in the Reed Warbler Acrocephalus scirpaceus (CROSBI ID 139547)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Procházka, Petr ; Hobson, Keith A. ; Karcza, Zsolt ; Kralj, Jelena Birds of a feather winter together: migratory connectivity in the Reed Warbler Acrocephalus scirpaceus // Journal fur ornithologie, 149 (2008), 2; 141-150. doi: 10.1007/s10336-007-0250-1

Podaci o odgovornosti

Procházka, Petr ; Hobson, Keith A. ; Karcza, Zsolt ; Kralj, Jelena

engleski

Birds of a feather winter together: migratory connectivity in the Reed Warbler Acrocephalus scirpaceus

To investigate migratory connectivity in the Reed Warbler Acrocephalus scirpaceus, we analysed (1) all available sub-Saharan ringing recoveries and (2) stable isotopes in feathers grown in Africa sampled at 17 European breeding sites across a migratory divide. A cluster analysis of ringing recoveries showed remarkable connectivity between breeding and non-breeding grounds. Two main clusters represented populations taking the two main migratory routes [southwesterly (SW) and southeasterly (SE)]. Stable isotope analysis confirmed the separation of wintering areas of SW- and SE-migrating populations. Higher δ 15N values in feathers of SE-migrating birds indicated that they occupied more xeric biome types. Values of δ 13C that did not differ significantly among populations were higher than those from feathers of known European origin and indicated a C4 biome. Three populations with an unknown migratory direction were assigned to the SE-migrating populations on the basis of δ 15N values.

Acrocephalus scirpaceus; Migratory connectivity; Migratory divide; Ringing recoveries; Stable isotopes

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Podaci o izdanju

149 (2)

2008.

141-150

objavljeno

0021-8375

10.1007/s10336-007-0250-1

Povezanost rada

Biologija

Poveznice
Indeksiranost