期刊
JOURNAL OF AGRICULTURAL BIOLOGICAL AND ENVIRONMENTAL STATISTICS
卷 14, 期 3, 页码 322-337出版社
SPRINGER
DOI: 10.1198/jabes.2009.08038
关键词
Circular data; Clouded leopard (Neofelis diardi); Golden cat (Catopuma temminckii); Kernel density estimation; Overlap coefficient; Sumatran tiger (Panthera tigris); Trigonometric sum distribution
资金
- Peoples Trust
Data from camera traps that record the time of day at which photographs are taken are used widely to study daily activity patterns of photographed species. It is often of interest to compare activity patterns, for example, between mates and females of a species or between a predator and a prey species. In this article we propose that the similarity between two activity patterns may be quantified by a measure of the extent to which the patterns overlap. Several methods of estimating this overlap measure are described and their comparative performance for activity data is investigated in a simulation study. The methods are illustrated by comparing activity patterns of three sympatric felid species using data from camera traps in Kerinci Seblat National Park, Sumatra.
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