Populačná dynamika a priestorová aktivita drobných zemných cicavcov v alpínskom stupni Nízkych Tatier (Rodentia, Eulipotyphla) [Population dynamics and spatial activity of small terrestrial mammals in the alpine zone of the Low Tatra Mts., Slovakia (Rodentia, Eulipotyphla)]
|Citation||DORKOVÁ, Martina a KOCIANOVÁ-ADAMCOVÁ, Marcela. Populačná dynamika a priestorová aktivita drobných zemných cicavcov v alpínskom stupni Nízkych Tatier (Rodentia, Eulipotyphla) [Population dynamics and spatial activity of small terrestrial mammals in the alpine zone of the Low Tatra Mts., Slovakia (Rodentia, Eulipotyphla)]. Lynx, new series. Prague: National Museum, 2015, 46(1), 19–28. ISSN 0024-7774 (print), 1804-6460 (online). Also available from: https://publikace.nm.cz/en/periodicals/lns/46-1/populacna-dynamika-a-priestorova-aktivita-drobnych-zemnych-cicavcov-v-alpinskom-stupni-nizkych-tatier-rodentia-eulipotyphla-population-dynamics-and-spatial-activity-of-small-terrestrial-mammals-in-the-alpine-zone-of-the-low-tatra-mts-slovakia-rodentia-eulipotyphla|
Research on small terrestrial mammals in the alpine zone of the Nízke Tatry (Low Tatra) Mts. was carried out between 2011 and 2014. During 377 trapping sessions performed in this period, a total of 206 individuals were recorded using the capture-mark-recapture (CMR) method. The most frequently recorded species were Chionomys nivalis mirhanreini and Microtus tatricus, followed by Microtus agrestis, Clethrionomys glareolus, Apodemus flavicollis, Sorex araneus, and S. minutus. The presence of Clethrionomys glareolus in the alpine zone, in places without vegetation, with a continuous coverage of bare rocks refutes the allegations that this species is restricted to the sub-alpine zone covered by the dwarf pine. A similar pattern of seasonal dynamics of Apodemus flavicollis and Clethrionomys glareolus was found in the alpine zone, which might be a consequence of their overpopulation at lower altitudes. The signs of sexual activity of Chionomys nivalis observed in the autumn months (September–October) suggest that – contrary to previous studies – the species can remain sexually active even after the August peak. Our hypothesis is that the extended sexual activity of the species is a result of its synanthropisation and migration into nearby buildings. Due to the insufficient performance of the trapping method, there was some uncertainty in the quantitative estimation of Eulipotyphla population densities. Out of all species recorded, Microtus agrestis was the least trapped, suggesting that the alpine zone represents a suboptimal sink habitat for this species.