La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Migratory status and movements of the Portuguese Mallard (Anas platyrhynchos)
Auteurs :	David J. C. Rodrigues, Auteur ; Antonio M. D. Fabiao, Auteur ; Maria E. M. A. Figueiredo, Auteur ; Paulo J. Q. Tenreiro, Auteur
Type de document :	Article
Dans :	Vogelwarte (40(4) Dezember, 2000)
Article en page(s) :	292-297
Langues:	Allemand
Résumé :	Results from recoveries, recaptures and resightings indicated a resident character of the Portuguese Mallard populations. Some winter migration may reach the studied areas but movements from the summer-ringed birds showed mostly dispersion and abmigration, although some were as long as 3580 km long until Russia. Frequent movements between local Portuguese Mallard populations resulted from dispersion. Mallard populations from central and northern Portugal (from Mondego River basin to north) were more related to Galicia and north Atlantic Mallard populations (Atlantic Flyway) than with the Southern Portuguese Mallard populations (from Tagus River basin to south), forming 2 distinct regional populations.

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