La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Biometrics and moult of Grey Plover (Pluvialis squatarola) in northeastern Italy
Auteurs :	Lorenzo Serra, Auteur ; Renzo Rusticali, Auteur
Type de document :	Article
Dans :	Vogelwarte (39(4) Dec., 1998)
Article en page(s) :	281-292
Langues:	Allemand
Résumé :	Grey Plovers (Pluvialis squatarola) wintering in northeastern Italy were morphometrically closer to the populations which use the East Atlantic Flyway than those following eastern routes, but differences in biometrics appeared too small for reliable considerations on breeding origins. Body mass seasonal variations showed a clear mid-winter peak, reaching 250 g both in adults and first-years. No body mass increase was observed in spring, suggesting early, short movements to pre-migratory staging areas where energy reserves are accumulated. Adult primary moult was estimated in 93 days, with mean starting day on 18 August and mean closing date on 19 November. Two concurrently active primary moult cycles were observed on second year birds in September-October.

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