Colonization process of the alpine marmot (Marmota marmota) in Spanish Western Pyrenees [Le processus de colonisation de la marmotte alpine (M. marmota) en Espagne, Pyrénées occidentales].

Résumé

Colonization process of the Alpine marmot (Marmota marmota) its present distribution and probable evolution in Northern Aragon (Spain) is descibed. Main human and physical factors that seem to determine this distribution process are discussed: spatial and temporal localization of introductions in the French slope, human presence and relief (ie. high massif, steep slopes, valley, mountain passes, main southern exposure and microtopography).