Occupancy models to study wildlife

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Many wildlife studies seek to understand changes or differences in the proportion of sites occupied by a species of interest, but these studies are hampered by imperfect detection of these species, which can result in some occupied sites appearing to be unoccupied. This fact sheet describes how occupancy models solve this problem and produce unbiased estimates of occupancy and related properties. Required data in the form of detection or nondetection information are relatively simple and inexpensive to collect, and software is available to aid investigators in occupancy estimation. The authors use studies of occurrence of terrestrial salamanders as analysis examples to explain occupancy estimation.

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ELECTRONIC FILE - Zoology