Osservazioni sulla distribuzione e l’abbondanza della marmotta alpina (Marmota marmota L. nel territorio Bellunese (Alpi SuOrientali). Observations on distribution and abundance of the alpine marmot (Marmota marmota L.) in the territory of Belluno (South-eastern Alps) [Observation sur la répartition et l’abondance de la marmotte alpine dans la zone de Belluno (Alpes du sud-est)].

Résumé

The distribution of the alpine marmot has been considered from an ecological point of view in one area of the south-eastern Alps (Provine of Belluno). With the collaboration of the Administration of the Prov. of Belluno, through the availabilty of the Corp of Hunting and Fishing vigilance, 85 sample-colonies have been studied. The following elements have been pointed out: air tempertaure, weather, UTM grid-ordinates, altitude, exposure, slope, kind of soil and rock, presence of water, closeness of human settlement our hount, predations, number of used and unused burrow holes and finally, number of holes per unit of area. The prevailing distribution of these different data and their possible correlation is discussed. This work is part of the marmot-project, dispatched for the province of Belluno, in the ambit of the faunal arrangement plan.