Abstract
Red-backed voles (Clethrionomys gapperi) were displaced and released 200, 400, or 600 m from their home sites. Data collected on behavior of displaced voles in the release site area indicate that some individuals remained there for days or weeks after release while others left within 32 h. Although homing success was inversely related to displacement distance, the proportion of displaced voles that remained in the release site area was unrelated to displacement distance and voles that left did so predominantly in the home direction ± 90°, irrespective of eventual actual homing or lack thereof and independently of the distance from the home site. These results are in better agreement with predictions of a model that implies a navigational mechanism as a basis of homing ability than with those of a model that implies random dispersion or recognition of known landmarks in the release site area.
Publisher
Canadian Science Publishing
Subject
Animal Science and Zoology,Ecology, Evolution, Behavior and Systematics
Cited by
13 articles.
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