La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Improving the efficiency of wildlife monitoring by estimating detectability: a case study of foxes (Vulpes vulpes) on the Eyre Peninsula, South Australia
Auteurs :	S. A. Field, Auteur ; A. J. Tyre, Auteur ; K. H. Thorn, Auteur ; P. J. O'Connor, Auteur ; H. P. Possingham, Auteur
Type de document :	Article
Dans :	Wildlife Research (32(3) 2005)
Article en page(s) :	253-258
Langues:	Anglais
Résumé :	Demonstrating the existence of trends in monitoring data is of increasing practical importance to conservation managers wishing to preserve threatened species or reduce the impact of pest species. However, the ability to do so can be compromised if the species in question has low detectability and the true occupancy level or abundance of the species is thus obscured. Zero-inflated models that explicitly model detectability improve the ability to make sound ecological inference in such situations. In this paper we apply an occupancy model including detectability to data from the initial stages of a fox-monitoring program on the Eyre Peninsula, South Australia. We find that detectability is extremely low (

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