La Tour du Valat

Article

Morphometric differences between sexes and populations in Norwegian Dunlins Calidris alpina

Sarah Malick-Wahls, Auteur ; Ingvar Byrkjedal, Auteur ; Barbara Ganter, Auteur ; Jan T. Lifjeld, Auteur ; Gunnhild Marthinsen, Auteur ; Hans-Ulrich Rösner, Auteur ; Terje Lislevand, Auteur

Dans Bird Study (72(2) May, 2025)

The sex of Dunlins from two widely separated Norwegian breeding populations can be determined using morphometrics, with the Dunlins’ sizes differing between populations. We aimed to understand the Dunlin’s physical characteristics within and out[...]

Plus d'information...

Ajouter au panier

Réserver

Disponible

Article

Heavy decline of the largest European Arctic Skua Stercorarius parasiticus colony: interacting effects of food shortage and predation : Bird Study

Rob S.A. van Bemmelen ; Hans Schekkerman ; Vincent Hin ; Morrison T. Pot ; Kirstin Janssen ; Barbara Ganter ; Hans-Ulrich Rösner ; Ingrid Tulp

Dans Bird Study (68(1) April, 2021)

Capsule The number of breeding pairs of Europe’s largest Arctic Skua Stercorarius parasiticus colony at Slettnes, Norway, showed a dramatic decline of at least 50% over two decades, with food shortage in four years and increasing predation by Re[...]

Plus d'information...

Ajouter au panier

Article

Juvenile plumage of Barnacle Geese Branta leucopsis in the course of the first winter.

Birgit ten Thoren, Auteur ; Barbara Ganter, Auteur

Dans Vogelwelt (Die) (123(6) 2002)

One way to obtain information on breeding success of Palearctic breeding geese wintering in Europe is to count the number of juvenile and adult individuals. While juvenile Brent Geese can be easily distinguished from the adults, this is much mor[...]

Plus d'information...

Ajouter au panier