La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Predation of artificial ground nests in Australian tropical savannas: inverse edge effects
Auteurs :	F. J. Fraser, Auteur ; P. J. Whitehead, Auteur
Type de document :	Article
Dans :	Wildlife Research (32(4) 2005)
Article en page(s) :	313-319
Langues:	Anglais
Résumé :	Depredation of artificial ground nests was examined in tropical savanna in northern Australia to assess potential predation pressures on nests of the partridge pigeon (Geophaps smithii), a declining tropical granivore. Predation rates were examined at two sites, Kakadu National Park ( which supported a relatively high density of partridge pigeons) and Berry Springs ( which had greater habitat fragmentation and comparatively low partridge pigeon density). The effects of distance from road, understorey structure, topography and nest-microsite concealment on nest predation rates were examined. Artificial-nest predation rates were greater at 150 m from roads than

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