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Evaluating habitat selection with radio-telemetry triangulation error

Journal of Wildlife Management

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Abstract

Radio-telemetry triangulation errors result in the mislocation of animals and misclassification of habitat use. We present analytical methods that provide improved estimates of habitat use when misclassification probabilities can be determined. When misclassification probabilities cannot be determined, we use random subsamples from the error distribution of an estimated animal location to improve habitat use estimates. We conducted Monte Carlo simulations to evaluate the effects of this subsampling method, triangulation error, number of animal locations, habitat availability, and habitat complexity on bias and variation in habitat use estimates. Results for the subsampling method are illustrated using habitat selection by redhead ducks (Aythya americana ). We recommend the subsampling method with a minimum of 50 random points to reduce problems associated with habitat misclassification.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Evaluating habitat selection with radio-telemetry triangulation error
Series title:
Journal of Wildlife Management
Volume
56
Issue:
4
Year Published:
1992
Language:
English
Publisher:
U.S. Fish and Wildlife Service
Contributing office(s):
Upper Midwest Environmental Sciences Center
Description:
pp. 725-734
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
725
Last page:
734
Number of Pages:
10