Treesearch

Wildlife in general and wildlife viewing in particular play significant roles in enriching the aesthetic experiences of visitors to wildlands. Effective management of wildlife for viewing must be based on human as well as biological information. The integration of the principles and techniques developed for game management with information on the human dimensions of wildlife appreciation offers tremendous potential in management of wildlife as a visual resource. These opportunities can not only provide benefits to the public but can also serve to stimulate awareness and concern for our...

This compilation lists 117 bibliographic data bases maintained by scientists of the Forest Service, U.S. Department of Agriculture. For each data base, the following information is provided; name of the data base; originator; date started; coverage by subject; geographic area, and size of collection; base format; retrieval format; ways to query; who to query; and availability. Four indexes included: subject, originator, geographic coverage, and Forest Service and other locations.

This manual standardizes procedures for determining the moisture content of living chaparral for use in a proposed statewide system of monitoring living fuel moisture. The manual includes a comprehensive examination of fuel moisture variations in California chaparral, and describes techniques for sampling these variations. Equipment needed to sample and determine living fuel moisture is discussed. Detailed procedures for collecting living fuel samples and processing the samples for moisture content are provided.

The toxicities of acephate, aminocarb, carbaryl, chlorpyrifos, chlorpyrifos-methyl, methomyl, mexacarbate, permethrin, and trichlorfon to last instar wetern spruce budworm, Choristoneura occidentalis Freeman, were significantly altered by the presence of hostplant foliage. The pyrethroid permethrin was significantly more toxic when sprayed directly on fully exposed larvae than when first sprayed on foliage. However, all other toxicants were more toxic sprayed on foliage. A toxicologically-based method was used to assess the residual toxicities of the nine chemicals. Each chemical was...