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Title: An assessment of techniques for monitoring San Joaquin kit fox population abundance on Naval Petroleum Reserve No. 1, Kern County, California

The monitoring of San Joaquin kit fox (Vulpes macrotis mutica) population abundance on Naval Petroleum Reserve No. 1 (NPR-1) by the US Department of Energy (DOE) is one aspect of compliance with the Endangered Species Act of 1973. Monitoring of the kit fox population is essential to determine the need for specific management programs, to assess the impacts of development activities, to evaluate the results of specific management programs, and to gather information on kit fox biology and ecology as they relate to other aspects of the NPR-1 environment. Several techniques are available to monitor population abundance, but the choice of methods used is dependent upon the specific objectives of the monitoring program. The inherent problem with most available techniques is the lack of uniformity of procedures and statistical repeatability, and the need for validation of indices and population estimates against known populations. If sufficient numbers of foxes can be captured, closed population models using capture-recapture data provide reasonable estimates of population size. Capture data can also be used to determine the minimum trappable population, and the minimum population size during those sessions when fewer than 40 foxes are trapped. The scent-station survey is the best method available for estimatingmore » relative kit fox abundance.« less
Authors:
Publication Date:
OSTI Identifier:
6361705
Report Number(s):
EGG-10282-2159
ON: DE87012715
DOE Contract Number:
AC08-83NV10282
Resource Type:
Technical Report
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products
Research Org:
EG and G Energy Measurements, Inc., Goleta, CA (USA). Santa Barbara Operations
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; FOXES; MONITORING; NAVAL PETROLEUM RESERVE; CALIFORNIA; COMPARATIVE EVALUATIONS; POPULATIONS; ANIMALS; FEDERAL REGION IX; GEOLOGIC DEPOSITS; MAMMALS; MINERAL RESOURCES; NORTH AMERICA; PETROLEUM DEPOSITS; RESERVES; RESOURCES; USA; VERTEBRATES 510500* -- Environment, Terrestrial-- Site Resource & Use Studies-- (-1989)