La Tour du Valat

Article

Estimating the condition and flight range of short- and long-distance passerine migrants: Are additional flight costs caused by barrier-effects from offshore windfarms a problem?

H. Ballasus, Auteur ; O. Hueppop, Auteur

Dans Journal of Ornithology (147(5, Suppl. 1) AUG 2006)

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Article

Phenology and spatial distribution of White-fronted Geese (Anser albifrons) wintering in neighbouring roost sites on the Lower Rhine

H. Ballasus, Auteur

Dans Journal of Ornithology (142(2) APR 2001)

Based on frequent goose counts, data are presented on abundance and spatial distribution of White-fronted Geese wintering in the north-western part of the Lower Rhine area, North Rhine Westfalia, FRG, in an area of about 117 km(2). In accordance[...]

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