Operation of predators in a forest and cultivated fields

Seven hundred Apodemus flavicollis, 500 Clethrionomys glareolus and 500 Apodemus agrarius were estimated to be present in a 40-hectare forest during one year. About 1 000 Microtus arvalis lived in a 40-hectare band of fields surrounding this forest during the same period. The dietary habits of foxes...

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Bibliographic Details
Published in:	Annales zoologici fennici Vol. 8; no. 1; pp. 160 - 168
Main Authors:	Ryszkowski, Lech, Wagner, C. Kenyon, Goszczyński, Jacek, Truszkowski, Janusz
Format:	Journal Article
Language:	English
Published:	SOCIETAS BIOLOGICA FENNICA VANAMO 01-01-1971
Subjects:	Diet Food Forest habitats Foxes Mammals Owls Predators Rodents Seasons Voles
Online Access:	Get full text
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Summary:	Seven hundred Apodemus flavicollis, 500 Clethrionomys glareolus and 500 Apodemus agrarius were estimated to be present in a 40-hectare forest during one year. About 1 000 Microtus arvalis lived in a 40-hectare band of fields surrounding this forest during the same period. The dietary habits of foxes, martens, badgers, tawny owls and common buzzards were also investigated during the same period. These predators ate about 1 200 forest rodents and 1 100 field voles. The data are preliminary and only indicate that predation on rodent populations is heavy. The fact that more field voles were eaten than were estimated to be present results from underestimation of the size of the territory hunted by owls and the inaccuracy of the method used to census field rodents.
ISSN:	0003-455X 1797-2450