. Protecting and enhancing America's forests and rangelands : 1986 research accomplishments. Forests and forestry United States; Rangelands United States. Wildlife in the Managed Forest Some species of vertebrate animals inhabit national forest lands, and many of them are found in managed forest stands--those areas that have been previously cut or otherwise silviculturally treated and that will be harvested before old age and decadence set in. To provide for wildlife, forest managers must have knowledge of all wildlife within their planning units and be able to anticipate the response of
. Protecting and enhancing America's forests and rangelands : 1986 research accomplishments. Forests and forestry United States; Rangelands United States. Wildlife in the Managed Forest Some species of vertebrate animals inhabit national forest lands, and many of them are found in managed forest stands--those areas that have been previously cut or otherwise silviculturally treated and that will be harvested before old age and decadence set in. To provide for wildlife, forest managers must have knowledge of all wildlife within their planning units and be able to anticipate the response of individual wildlife species and wildlife communities (groups of species) to planned changes in vegetation composition and structure. A major segment of the Forest Service's wildlife research program is directed toward meeting this goal for the managed forest. Research focuses on discovery of habitat requirements of individual species and development of models to predict changes in distribution and abundance of species with changes in habitat. On a broader scale, other investigations are examining what groups of species, or wildlife communities, live in different habitats and how these communities change over time with forest harvesting, stand treatment, and stand development. Effort is also being made to devise cost-effective methods to measure, or monitor, wildlife response resulting from management activities. Here are some examples of research completed in 1986: • Research in Missouri by the North Central Station has developed and tested habitat capability models for the ovenbird and wood thrush that will provide a useful tool in predicting response of these species to forest-management activities. • Studies of monitoring techniques could not demonstrate any hourly variation in counts of birds during the first 5 hours of morning, indicating that timing of census taking is not critical. • Research in California is identifying nonhabitat factors that affect songbird pop
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