La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Aggression in Flocks of Foraging Shorebirds During Spring Stopover at Delaware Bay, USA (2018)
Auteurs :	Ivana Novcic, Auteur
Type de document :	Article
Dans :	Waterbirds (41(1) March, 2018)
Article en page(s) :	73-79
Résumé :	The objective of this study was to examine aggressive behavior of shorebirds during spring stopover on beaches and other stopover habitats in Delaware Bay, New Jersey, USA. More aggressive interactions were observed between members of the same species than between species at all study locations. The incidence of interspecific interactions was higher than previously reported for shorebirds, particularly in Sanderlings (Calidris alba), which directed almost half of their attacks toward members of other species, mainly Semipalmated Sandpipers (Calidris pusilla). Significantly more heterospecific attacks were directed toward smaller competitors (67%) than toward similarly sized (15%) or larger (18%) competitors.

Lundi , mardi et jeudi de 9h à 12h et de 13h à 17h00 : ouverture au public ...