Ekologiïa stepnaya sourka v gosoudarsvennon prirodnom zapovednikh 'Orenburskiï". [Écologie de la marmotte des steppes dans la réserve d'état Orenbourg. The ecology of the steppe marmot in the state nature reserve "Orenburgskiy"].

Résumé

The distribution of the steppe marmot in the territory of reserve "Orenburgskiy", withdrawn from econic use was investigated. The influence of absolutely reserve regime on the density of the population and reproduction of the marmot was reavealed. The territorial preference, spatial organisation of the families and use of the territory by animals, structure of social groups and dynamics quantity of the steppe marmot in territory of reserve was shown. The influence of various factors on intensity of reproduction of the steppe marmot and age structure of population, relative age of mortality of the marmot in burrows was analyzed. The dynamics of seasonal and daily ground activity of the marmot. The influence of weather conditions on duration of the periods of activity and hibernation was investigated.