Zvukovye signaly serogo sourka i tarbagana v zone simpatrii [Cris d'alarmes de la marmotte grise et de la marmotte tarbagan dans la zone sympatrie. Alarm calls of grey marmot and tarbagan in the zone of sympatry].

Résumé

Alarm calls of Marmota baibacina and M. sibirica exhibit the species-specific characteristics that have been previouly established in other parts of their ranges. Bioacoustical analysis confirms the overlap of these species habitats in the Ulagchin-gol valley (the left tributary of the Bulgan-gol river, S-W Mongolia). The discovery of a specimen with an intermediate call structure supports the notion of the occurence of limited hybridization of these species in the region.