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1994
Proceedings
North American Conference on Savannas and Barrens
LIFE ON THE EDGE: SEASONAL HABITAT SELECTION AND
DIET CHOICE OF THE EASTERN FOX SQUIRREL (Sciurus niger)
Dianne M. Jedlicka
University of Illinois at Chicago
Chicago, IL 60607
and
Aurora University
Aurora, IL 60506 |
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The Foragers must simultaneously evaluate diet and habitat
suitability. In this study, I used two sizes of food (diet choice)
to examine foraging preferences of the eastern for squirrel (Sciurus
niger) in a grass habitat, a wooded habitat, and the woodland
edge habitat during summer, fall, and winter seasons (habitat
selection). I found that squirrels forage preferentially for large
seeds in the woods and edge habitats during summer and fall. In the
winter, fox squirrels forage all seed sizes at all habitats equally.
A tradeoff between perceived predation and the food energy gained is
indicated. During winter, these squirrels foraged the grassland
habitat as much as the wood-land and edge habitats. Squirrels made
no apparent distinction between habitat (perceived risk) or seeds
size during the winter.
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