La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Persistence of Northern Pacific Rattlesnakes masks the impact of human disturbance on weight and body condition
Auteurs :	E. Lomas, Auteur ; K. W. Larsen, Auteur ; C. A. Bishop, Auteur
Type de document :	Article
Dans :	Animal Conservation (18(6) DEC 2015)
Article en page(s) :	548-556
Résumé :	Species may remain present on developed landscapes over extended periods, suggesting viability, while in reality, populations may be indirectly affected in subtle and significant ways. We investigated indirect effects of human disturbance and habitat development on a population of the threatened Northern Pacific Rattlesnake Crotalus oreganus oreganus in British Columbia, Canada. We used mark-recapture (n = 623 males and non-gravid females, 2002-2011) and radio-telemetry (n = 100 males, n = 4 non-gravid females, 2004-2011) to examine weight, length, body condition, ecdysis and exposure risk in habitats of varying disturbance levels. Snakes in the most disturbed areas (

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