La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	DNA genotypes reveal red fox (Vulpes vulpes) abundance, response to lethal control and limitations of contemporary survey techniques
Auteurs :	Clive A. Marks, Auteur ; Frank Gigliotti, Auteur ; Steve McPhee, Auteur ; Maxine P. Piggott, Auteur ; Andrea Taylor, Auteur ; Al S. Glen, Auteur
Type de document :	Article
Dans :	Wildlife Research (36(8) 2009)
Article en page(s) :	647-658
Langues:	Anglais
Résumé :	Context. Scat genotyping has not been routinely used to measure fox (Vulpes vulpes) abundance and our study sought to provide a benchmark for further technique development and assessment of field methods. Aims. This study sought to provide a comparative assessment of some common methods used to determine fox density and contrast their success with scat DNA genotyping. Methods. DNA recovered from fox scats was used to genotype individual red foxes and determine their abundance at four transects. Population indices were also developed from bait take, scat counts and sand plot tracks using index-manipulation-index (IMI) procedures on the same transects. Known samples of foxes were taken from two treatment transects using cyanide delivered in the M-44 ejector to manipulate the population and to recover foxes at the end of the trial. Key results. Replicated counts on a 41-km-spotlight transect at the field site before and after the population manipulation had low variance and good correlation (r(2) = 0.79, P

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