La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Orientation of shorebirds in relation to wind: both drift and compensation in the same region
Auteurs :	Johanna Gronroos, Auteur ; Martin Green, Auteur ; Thomas Alerstam, Auteur
Type de document :	Article
Dans :	Journal of Ornithology (154(2) APR 2013)
Article en page(s) :	385-392
Langues:	Anglais
Résumé :	Migratory movements in air or water are strongly affected by wind and ocean currents and an animal which does not compensate for lateral flow will be drifted from its intended direction of movement. We investigated whether arctic shorebirds during autumn migration in the region of South Sweden and the southern Baltic Sea compensate for wind drift or allow themselves to be drifted when approaching a known goal area under different circumstances (over sea, over land, at low and high altitude) using two different approaches, visual telescope observations and tracking radar. The shorebirds showed clearly different responses to crosswinds along this short section (

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