Analysing telemetry data with a GIS-based vector structure |
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Authors: | John A. Bissonette Stuart S. Sherburne R. Douglas Ramsey |
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Affiliation: | U.S. National Biological Survey, Utah Cooperative Fish and Wildlife Research Unit, College of Natural Resources, Department of Fisheries and Wildlife , Utah State University , Logan, UT, 84322-5290, U.S.A. |
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Abstract: | Abstract This paper proposes a unique method for plotting field bearing locations, of the kind typically taken by wildlife biologists on free ranging species, directly on a computer-compatible habitat map. We show how to use a GIS data base to identify differential habitat use directly from the polygon formed by each set of bearings. A geometric algorithm is developed to interpret the bearings accurately. The technique avoids the most difficult errors associated with using point locations, namely those due to animal movement, and distance from receiver to transmitter, and is especially useful for habitat preference studies. |
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