Mating systems in the steppe lemming Lagurus lagurus and narrow-skulled vole Microtus gregalis from the Northern Kulunda Steppe

Coimbra, Joao Carlos; Pinto, Iraja Damiani; Wurdig, Norma Luiza; Do Carmo, Dermeval Aparecido

Russian Journal of Ecology 43(1): 40-44

2012


ISSN/ISBN: 1067-4136
DOI: 10.1134/s1067413612010109
Accession: 036322937

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Abstract
A comparative analysis of reproductive behavior has been performed in the steppe lemming (Lagurus lagurus) and narrow-skulled vole (Microtus gregalis). The results show that the species are similar in certain behavioral features indicative of the stability of mating pairs. However, in the narrow-skulled vole, unlike in the steppe lemming, mature males in olfactory tests show preference for receptive sibling females versus non-kin females. Probably, it is the absence of the incest taboo that allows the involvement of young of the year in reproduction within growing family groups and accounts for coloniality of the species.