La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Relative abundance and demographic structure of Agassiz's desert tortoise (Gopherus agassizii) along roads of varying size and traffic volume
Auteurs :	Melia G. Nafus, Auteur ; Tracey D. Tuberville, Auteur ; Kurt A. Buhlmann, Auteur ; Brian D. Todd, Auteur
Type de document :	Article
Dans :	Biological Conservation (162 JUN 2013)
Article en page(s) :	100-106
Langues:	Anglais
Résumé :	Roads are recognized as important contributors to wildlife population declines and are thought to pose greatest risk to vagile species with large home ranges and long generation times. We examined variation in the relative abundance and demographic,structure of Agassiz's desert tortoise (Gopherus agassizii) near roads that varied in traffic volume. We found that the abundance of tortoise sign (scat, tracks, pallets, burrows, and live and dead individuals) varied with traffic volume and distance from the road depending on traffic volume. The relative abundance of tortoise sign was greatest along roads with low traffic volume (

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