Diversity of small mammals synusias of the open forest sites of the Beskydy and Jeseníky Mts.

Abstract

Small mammal communities were studies in tree plantations in 2007-2011. The monitoring was conducted at 18 plots in the Jeseníky Mts. and 18 plots in the Beskydy Mts. using snap traps placed in lines. A total of 588 individuals of 10 species were captured in the Jeseníky Mts. and 577 individuals of 13 species in the Beskydy Mts. The Beskydy lot encompassed 5 insectivorous species and 8 rodent species, 4 of them eudominant ( Apodemus flavicollis, D=43.33 %; Clethrionomys glareolus , D=21.49 %; Microtus agrestis , D=18.54 %; and Sorex araneus , D=10.05 %), one subdominant ( Apodemus sylvaticus , D=2.77 %), two recedent ( Microtus arvalis , D=1.39 %; Muscardinus avellanarius , D=1.04 %) and six sub-recedent ( Microtus subterraneus and Sorex minutus : D=0.35 % and Apodemus agrarius , Neomys anomalus , Sorex alpinus and Talpa europea : D=0.17 %). The occurrence of 3 insectivorous species and 7 rodent species was confirmed in the Jeseníky Mts. Four species were eudominant ( A. flavicollis , D=30.1 %; Clethrionomys glareolus , D=27.04 %; Microtus agrestis, D=24.49 %; and S. araneus , D=12.59 %), one species subdominant ( Microtus arvalis; D=3.57 %), five species sub-recedent ( A. sylvaticus , D=0.68 %; Crocidura suaveolens and Microtus subterraneus : D=0.34 %, Muscardinus avellanarius and S. minutus : D=0.17 %). According to the employed indexes, the total biodiversity was slightly higher in the Jeseníky Mts. (H=1.53; d=0.76; E=0.66) than in the Beskydy Mts. (H=1.52; d=0.72; E=0.59). The structure of the small mammal communities was strongly affected by the herb layer composition.