La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Golden Eagle Aquila chrysaetos density and productivity in relation to land abandonment and forest expansion in the Alps (2001)
Auteurs :	P. Pedrini, Auteur ; F. Sergio, Auteur
Type de document :	Article
Dans :	Bird Study (48 JUL 2001)
Article en page(s) :	194-199
Langues:	Anglais
Résumé :	Land abandonment and afforestation are causing considerable forest expansion in the Alpine chain, with consequent loss of Alpine pastures, the main foraging habitat for Golden Eagles Aquila chrysaetos. A population of 46 pairs of Golden Eagles was systematically surveyed between 1984 and 1989 in the central eastern Italian Alps. We measured the amount of woodland within the potential hunting range of 36 pairs. Nearest-neighbour distance was correlated positively with tire extent of woodland within the potential hunting range. Productivity was riot significantly affected by the amount of woodland within the potential fo; aging range. At current rates of forest expansion, such data suggest a 5-9% density decline in the next 20 years. However, increasing food supply and decreasing human persecution could be masking current effects of habitat loss.

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