Long-term changes of small mammal communities in heterogenous landscapes of Central Europe
2017
Zárybnická, Markéta | Riegert, Jan | Bejček, Vladimír | Sedláček, František | Št̕astný, Karel | Šindelář, Jiří | Heroldová, Marta | Vilímová, Jitka | Zima, J.
Long-term dynamics of small mammal communities are perennial themes in population ecology. However, comprehensive studies on the effect of environmental factors on population dynamics are still rare. Here, we aimed to analyze long-term data on Central European communities of small mammals occurring in two habitats that greatly differed in their structure, successional stages, and forest management. We found a richer community structure in young spruce plantations compared to mature European beech forests. In young spruce plantations, Myodes glareolus and Apodemus flavicollis abundances increased and Sorex araneus abundances decreased during the study period as a result of forest growth and management. Community structure in mature beech forests did not change significantly during the study period. Apodemus flavicollis and Myodes glareolus showed 3- and 5-year population cycles, respectively, and their abundances were simultaneously positively correlated with relative abundance of masts. Weather also played a role, while the effect of snow cover was pronounced only in mountain areas where it negatively affected Microtus agrestis and Sorex araneus abundances, temperature positively and rainfall negatively influenced Myodes glareolus and Apodemus flavicollis abundances across both studied habitats. Our findings document that a complex of environmental factors significantly affects the structure and dynamics of small mammal communities in Central Europe, and both local biotic and abiotic factors should be considered in future studies.
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