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Effects of habitat fragmentation on the red squirrel,Sciurus vulgarisL.

✍ Scribed by B. Verboom; R. Apeldoorn

Publisher
Springer
Year
1990
Tongue
English
Weight
417 KB
Volume
4
Category
Article
ISSN
0921-2973

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✦ Synopsis

The effects of woodlot size and isolation, in relation to habitat fragmentation, on the distribution of the red squirrel were studied. In The Netherlands, 50 woodlots (0.55-13.78 ha) were surveyed in an agricultural landscape for the presence of red squirrel. In 26 woodlots squirrel dreys (nests) were found. Logit regression analysis showed that woodlot size and the area per woodlot covered with coniferous trees were the best predictors of squirrel presence. Addition of isolation variables by means of a stepwise forward regression method showed significant effects of the distance to a large, permanently inhabited wood and the amount of surrounding wood. No effect was found for the distance to the nearest woodlot (> 0.5 ha). The model could be further improved by adding a measure of the amount of hedgerows surrounding a woodlot.

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