a new way of assessing foraging behaviour at the individual level using faeces marking and satellite telemetry评估觅食行为的一种新的方式在个体层面使用粪便标记和卫星遥测.pdfVIP

A New Way of Assessing Foraging Behaviour at the Individual Level Using Faeces Marking and Satellite Telemetry ´ 1 1,2 3,4 1 Marie-Andree Giroux *, Christian Dussault , Nicolas Lecomte , Jean-Pierre Tremblay , ˆ ´ 1* Steeve D. Cote ´ ´ ´ ´ ´ 1 NSERC-Produits Forestiers Anticosti Industrial Research Chair, Departement de Biologie and Centre d’Etudes Nordiques, Universite Laval, Quebec, Quebec, Canada, ´ ´ ` ´ ´ ´ 2 Direction Generale de l’Expertise sur la Faune et ses Habitats, Ministere des Ressources Naturelles et de la Faune, Quebec, Quebec, Canada, 3 Departement de Biologie, ´ ´ ` ´ Universite du Quebec a Rimouski, Rimouski, Quebec, Canada, 4 Department of Environment, Government of Nunavut, Igloolik, Nunavut, Canada Abstract Heterogeneity in foraging behaviour can profoundly influence ecological processes shaping populations. To scale-up from individual foraging behaviour to processes occurring at the population scale, one needs to sample foraging behaviour at the individual level, and over large temporal scales or during critical seasons known to influence life-history traits. We developed an innovative technique to monitor foraging behaviour at the individual level in secretive species, a technique that can be ultimately used