La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Using simulation to improve wildlife surveys: wintering mallards in Mississippi, USA
Auteurs :	Aaron T. Pearse, Auteur ; Kenneth J. Reinecke, Auteur ; Stephen J. Dinsmore, Auteur ; Richard M. Kaminski, Auteur
Type de document :	Article
Dans :	Wildlife Research (36(4) 2009)
Article en page(s) :	279-288
Langues:	Anglais
Résumé :	Wildlife conservation plans generally require reliable data about population abundance and density. Aerial surveys often can provide these data; however, associated costs necessitate designing and conducting surveys efficiently. We developed methods to simulate population distributions of mallards (Anas platyrhynchos) wintering in western Mississippi, USA, by combining bird observations from three previous strip-transect surveys and habitat data from three sets of satellite images representing conditions when surveys were conducted. For each simulated population distribution, we compared 12 primary survey designs and two secondary design options by using coefficients of variation (CV) of population indices as the primary criterion for assessing survey performance. In all, 3 of the 12 primary designs provided the best precision (CV

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