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Small mammal and raptor densities in habitat islands; area effects in a south Swedish agricultural landscape

✍ Scribed by Jon Loman


Book ID
104648035
Publisher
Springer
Year
1991
Tongue
English
Weight
341 KB
Volume
5
Category
Article
ISSN
0921-2973

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✦ Synopsis


There was no significant correlation between the size of habitat islands in cropped fields and the density of field vole, bank vole, and common shrew populations during autumn. Despite this, winter densities of perching raptors were considerably higher in small islands than in large one. Explanations for this, apparently suboptimal, hunting pattern are discussed. The distribution should increase predation mortality for small rodents in small compared to large patches and may have been the cause of the higher winter mortality actually found for field voles in small patches.


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