La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Effects of a power line on migration and range use of wild reindeer
Auteurs :	Eigil Reimers, Auteur ; Bjorn Dahle, Auteur ; Sindre Eftestol, Auteur ; Jonathan E. Colman, Auteur ; Eldar Gaare, Auteur
Type de document :	Article
Dans :	Biological Conservation (134(4) FEB 2007)
Article en page(s) :	484-494
Langues:	Anglais
Résumé :	Linear infrastructures such as roads, pipelines and power lines can hinder Rangifer migration and reduce the total amount of area available for foraging. We studied the barrier and aversion effect of a 66 kV power line transecting the range of wild reindeer in North Ottadalen, south central Norway using aerial surveys of reindeer distribution (direct measurement of reindeer use) and lichen measurements (indirect measurement of reindeer use) at varying distances from both sides of the power line. We present a clear definition of the expected barrier and aversion effects, and present specific hypotheses and predictions based on these two terms that are often used unclearly in the literature. The aerial surveys and ground observations showed that reindeer crossed underneath and grazed under and on both sides of the power line during

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