Object structure

Title:

Effect of supplemental food on a cyclic Clethrionomys glareolus population at peak density

Creator:

Löfgren, O. ; Hörnfeldt, B. ; Eklund, U. L. F.

Place of publishing:

Białowieża

Date issued/created:

1996

Description:

The impact of supplemental food on a cyclic bank vole Clethrionomys glareolus (Schreber, 1780) population was studied at peak density. We provided high energy food (sunflower seeds) to a 3.15 ha live-trapping grid and used a 5.06 ha unfed grid as a control. Density of adult females and immatures increased 3-fold in response to the extra food. In contrast, density of adult males did not change significantly. The rise in density of adult females, but not of adult males, altered the functional sex ratio. Loss rate of red adults remained the same as for controls, whereas immature loss rate was reduced by the extra food. Dispersal of immatures fom the control into the food supplemented grid was higher than the reverse. Growth and body mass of fed immatures were lower than controls. Reduced dispersal and increased immigration of immatures both contributed significantly to the overall rise in density when food was added.

Subject and Keywords:

body mass ; Clethrionomys glareolus ; density ; supplementary food ; masa ciała ; pokarm ; suplementacja ; Nornica ruda

Relation:

Acta Theriologica

Volume:

41

Issue:

4

Start page:

383

End page:

394

Resource Type:

Article

Format:

application/pdf

Resource Identifier:

10.4098/AT.arch.96-37

Source:

click here to follow the link

Language:

eng ; Sum. eng.

Rights:

Rights Reserved - Free Access

Terms of use:

Copyright-protected material. May be used within the limits of statutory user freedoms

Digitizing institution:

Mammal Research Institute of the Polish Academy of Sciences

Original in:

Library of the Mammal Research Institute Polish Academy of Sciences

Projects co-financed by:

Programme Innovative Economy, 2010-2014, Priority Axis 2. R&D infrastructure ; European Union. European Regional Development Fund

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