Demography of Clethrionomys glareolus in Belgium

• Autorzy: Verhagen R. , Leirs H. , Verheyen W.
• Języki publikacji: EN

Abstrakty

EN

Bank vole populations were followed for several years on two grids (on a fenced grid, preventing dispersal during 11 years and on an open grid for 7 years) using standard Capture-Mark-Recapture methods. The collected data allow us to obtain a good knowledge on several demographic processes within populations. Here we focus mainly on reproduction. On both grids we observed strong seasonal and inter-annual variations in the density of bank voles, characteristic for non-cyclic bank vole populations. The inter-annual variation in the dynamics of bank vole populations in Belgium were to a great extend mast-dependent. The influence of heavy seed crops on demographic parameters was different for the two sexes. Winter survival of males was much better in years with heavy mast crops whereas no such relation could be found for females. During the breeding period, several reproductive traits varied considerably between years and seasons and some of them can be directly related to density (f.i. maturation rate, pregnancy rate). In years with low densities demographic traits are most variable, especially in females, and other factors than density could have overriding effects.

Słowa kluczowe

EN

bank voles; reproduction; variability

• Wydawca: Museum and Institute of Zoology, Polish Academy of Sciences
• Czasopismo: Polish Journal of Ecology
• Rocznik: 2000
• Tom: Vol. 48, Suppl.
• Strony: 113--123
• Opis fizyczny: Bibliogr. 35 poz.,

Twórcy

autor

Verhagen R.

• Evolutionary Biology Group, University of Antwerp (RUCA), Groenenborgerlaan 171, B-2020 Antwerp, Belgium

autor

Leirs H.

• Danish Pest Infestation Laboratory, Skovbrynet 14, DK-2800 Lyngby, Denmark

autor

Verheyen W.

• Evolutionary Biology Group, University of Antwerp (RUCA), Groenenborgerlaan 171, B-2020 Antwerp, Belgium

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