Treesearch

Sustainable, ecologically-based management of pine/ fir forests requires silviculturists to integrate several treatments that emulate historic disturbance processes. Restoration prescriptions typically include cleaning or heavy understory thinning, improvement cutting to reduce the proportion of firs, and modified selection cutting to reduce overall stand density, leading to stands that are moderately open, primarily ponderosa pine, uneven-aged, and large-tree dominated.

The traditional time period to survey breeding birds in low elevation forests of western Montana is from the middle of May through early July. There are some bird species, however, that begin their breeding cycle before these surveys begin and, therefore, may not be as vocal or active during the traditional survey period. To study the impact of survey timing on our understanding of the breeding bird community, we undertook a two year study of breeding birds in old-growth ponderosa pine (Pinus ponderosa) habitat in western Montana in 1996 and 1997. We chose eight sites and sampled each site...

To meet visitors’ needs, managers must understand the motivations driving visitors to wilderness areas. This paper compares the motivations of different segments of Allegheny National Forest users. Factor analysis identified 5 motivation factors (social, escape, fun, nature and learning), with two items retained as single item dimensions (close to home and challenge). Findings highlight that wilderness and campground users were motivated to visit by the need for escape. Overnight visitors were more apt than dayusers to indicate escape, fun and challenge as motivational factors for their...

VOLUME 1: Fires affect animals mainly through effects on their habitat. Fires often cause short-term increases in wildlife foods that contribute to increases in populations of some animals. These increases are moderated by the animals' ability to thrive in the altered, often simplified, structure of the postfire environment. The extent of fire effects on animal communities generally depends on the extent of change in habitat structure and species composition caused by fire. Stand-replacement fires usually cause greater changes in the faunal communities of forests than in those of grasslands...

VOLUME 2: This state-of-knowledge review about the effects of fire on flora and fuels can assist land managers with ecosystem and fire management planning and in their efforts to inform others about the ecological role of fire. Chapter topics include fire regime classification, autecological effects of fire, fire regime characteristics and postfire plant community developments in ecosystems throughout the United States and Canada, global climate change, ecological principles of fire regimes, and practical considerations for managing fire in an ecosytem context.

While the National Park Service encourages the use of its wilderness resource for research, management policies require that all research apply “minimum requirement” protocols to determine: 1) if the research is needed to support the purposes of wilderness and, 2) if it is appropriate, determine the minimum tool needed to accomplish the work.

Using two measures of knowledge of wilderness management practices, the general public does not appear to be very knowledgeable about activities allowed in federally designated wilderness areas. This lack of knowledge was found across all of the basic socio-demographic groups. Although two out of three people support setting aside more public lands as wilderness, only a small percent (14%) express strong support. People with a high school education or less, those employed in a natural resource-related job, rural residents and minorities were less supportive than their respective counterparts.

Arriving at appropriate limits on the size of groups in wilderness remains a difficult and often controversial management challenge. This paper presents a review of the state of knowledge regarding group size from an ecological impact and visitor experience standpoint, a survey of wilderness managers regarding the current status of group size regulations and a proposed management decisionmaking framework for group size.

This paper provides an overview of the Wilderness science in a time of change conference-Volume 3: Wilderness as a place for scientific inquiry.

Reports of trail degradation have been increasing in different wildernesses. This impact has become a common concern among managers. Deteriorating tread conditions of trails are increasing, as is concern at protected areas worldwide. In order to make objective and timely trail resource decisions, managers need to have effective and efficient methods of assessing trail erosion. Various approaches to assessing trail erosion, the limitations and utility of each and implications for management are discussed.