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Effect of woodland patch size on rodent seed predation in a fragmented landscape.

Författare:
Publiceringsår: 2007
Språk: Engelska
Sidor: 47-52
Publikation/Tidskrift/Serie: Web Ecology
Volym: 7
Dokumenttyp: Artikel
Förlag: European Ecological Federation

Sammanfattning

Predation on large woody plant seeds; chestnuts, acorns and sloe kernels, was studied in
deciduous forests of two size classes: small woodlots (< 1 ha) and large woods (at least 25
ha) in southern Sweden. Seeds used for the study were artificially distributed on the
forest ground and seed predation measured as seed removal. Predation rate was similar
in both types of woods. However, rodent density was higher in small woodlots and a
correction for differences in rodent density showed that predation rate per individual
rodent was higher in the large woods. This suggests that the small woodlots (including
the border zone) and their adjacent fields have more rodent food per area unit. A small
woodlot cannot be considered a representative sample of a large continuous forest, even
if the habitats appear similar. There was a strong effect of rodent density on seed predation
rate. This suggests that rodents are major seed predators in this habitat.

Disputation

Nyckelord

  • Biology and Life Sciences

Övriga

Published
Yes
  • ISSN: 1399-1183

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