Food selection of Microtus agrestis in air-pollution affected clearings in the Beskydy Mts, Czech Republic
2002
Heroldova, M. (Akademie Ved, Brno (Czech Republic). Ustav Biologie Obratlovcu)
The small mammal community of an air pollution affected area of the Beskydy Mts was studied over a seven-year period. The highest dominance and population density values were found in the field vole (Microtus agrestis) and its feeding ecology and negative impact on reforestation have been evaluated. The vegetative parts of plants, particularly those of monocotyledons, were dominant in vole diets. Diet availability and early spring and spring diets were highly correlated, but this was not the case in autumn. The frequency of damage was significantly greater in deciduous tree species than in coniferous ones. The great degree of damage caused to natural and artificial forest regeneration could be associated with high vole population densities.
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