Is the common shrew (class="a-plus-plus">Sorex araneus) really a common forest species?

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• 作者：Peter Lešo ; Rudolf Kropil
• 关键词：Small mammals ; Abundance ; Fir ; beech forest ; Western Carpathians ; Kremnické vrchy Mts
• 刊名：Rendiconti Lincei
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：28
• 期：1
• 页码：183-189
• 全文大小：
• 刊物类别：Earth and Environmental Science
• 刊物主题：Environment, general; Earth Sciences, general; Life Sciences, general; Biomedicine, general; History of Science;
• 出版者：Springer International Publishing
• ISSN：1720-0776
• 卷排序：28

文摘

The data collected during nine vegetation seasons were analysed to reveal abundance of the common shrew in fir-beech forests of the Kremnické vrchy Mts. (Western Carpathians, central Slovakia). Live trapping in three quadratic study plots and five lines representing different age categories of fir-beech and beech forests was carried out using wooden live traps and pitfalls. A very low abundance of the common shrew was found. During the whole period, the absolute overall trapping efficiency of the species comprised only 0.07% and mean density 0.08–0.52 ind./ha. The analysis revealed significant differences in neither trapping efficiency nor density among the study plots. Pitfalls and Chmela live traps reached similar values of the trapping efficiency (0.06 vs. 0.07%). The regression model showed a significant relationship (r = 0.55, p < 0.05) between the number of trap nights and the number of trapped individuals of the common shrew, but the overall number of trapped individuals remained very low also on the level of high trapping intensity. Some causes of the very low abundance of the common shrew were discussed; the fact remains a real rarity of the species in the given area and time.