La Tour du Valat

Article

Satellite tracking of migratory and ranging behavior of immature great white pelicans

I. Izhaki ; M. Shmueli ; Z. Arad ; Y. Steinberg ; Alain Jean Crivelli 2002

Waterbirds 25 p295-304

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The energetic demand of the Great White Pelican during migration in Israel and its implication to the conflict between fish industry and pelicans

M. Shmueli ; Z. Arad ; I. Izhaki ; Alain Jean Crivelli 2000

Ostrich 71 p1

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Article

Water retention in the plumage of diving great cormorants Phalacrocorax carbo sinensis

G. Ribak, Auteur ; D. Weihs, Auteur ; Z. Arad, Auteur

Dans Journal of Avian Biology (36(2) MAR 2005)

Cormorants are assumed to have a "partially wettable" plumage as a mechanism to reduce buoyancy while swimming underwater. This assumption is mainly based on 3 observations: 1) the volume of air in the plumage of submerged carcasses is small com[...]

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