La Tour du Valat

Article

Moult of three Palaearctic migrants in their West African winter quarters

V. Salewski, Auteur ; R. Altwegg, Auteur ; B. Erni, Auteur ; K. H. Falk, Auteur ; F. Bairlein, Auteur ; B. Leisler, Auteur

Dans Journal of Ornithology (145(2) APR 2004)

Some theories about moult strategies of Palaearctic passerine migrants assume that birds adapt timing of moult to environmental conditions such as rainfall on their African wintering grounds. Species wintering in the northern tropics should limi[...]

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Article

Wind and rain govern the intensity of nocturnal bird migration in central Europe - A log-linear regression analysis

B. Erni, Auteur ; F. Liechti, Auteur ; L. G. Underhill, Auteur ; B. Bruderer, Auteur

Dans Ardea (90(1) SPR 2002)

For the first time an almost complete sample of the seasonal course of nocturnal autumn migration was recorded by a conically scanning pencil-beam radar and was analysed with respect to weather, using a log-linear regression model. A variable ai[...]

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