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Keyword: trends

Fish and other aquatic resource trends in the United States

Publications Posted on: August 01, 2018
This report documents the general trends in fisheries and aquatic resources for the nation as required by the Renewable Resources Planning Act (RPA) of 1974. The report highlights major trends in water quality, specific fish populations, resource utilization, and imperiled aquatic fauna. Relationships between land use, water quality, and aquatic species conditions are explored.

Wildlife resource trends in the United States: A technical document supporting the 2000 RPA Assessment

Publications Posted on: August 01, 2018
This report documents trends in wildlife resources for the nation as required by the Renewable Resources Planning Act (RPA) of 1974. The report focuses on recent historical trends in wildlife as one indicator of ecosystem health across the United States and updates wildlife trends presented in previous RPA Assessments.

Data from a 1990 visitor survey in the Desolation Wilderness to determine visitor trends, and preferences for wilderness conditions and experience

Datasets Posted on: March 15, 2018
This package contains trend, characteristic, activity and preference data collected as part of a 1990 survey of visitors to the Desolation Wilderness in the Sierra Nevada of Northern California. Permit and mailback surveys were used to provide the data from a systematic sample of visitors with the required use permit (permit holders) and a sample of party members (group members without the permit).

Bob Marshall Wilderness Complex (BMWC) 1982 visitor characteristics, attitudes, and use patterns

Datasets Posted on: March 15, 2018
The data included in this publication include visitor characteristics, attitudes towards the wilderness experience, and use patterns for wilderness visitors to the Bob Marshall Wilderness Complex (BMWC) in 1982. Visitors were asked to provide contact information for a mail-back survey.

Bob Marshall Wilderness Complex (BMWC) 2004 visitor preference and usage data along with characteristics and attitudes towards Fire Management

Datasets Posted on: March 15, 2018
Research at the Bob Marshall Wilderness Complex (BMWC) in Montana explored differences in recreation visitors’ attitudes towards the use of management-ignited prescribed fires in the wilderness. This data publication contains the results of both on-site and mail-back surveys during the summer and fall of 2004.

Wilderness science in a time of change conference-Volume 1: Changing perspectives and future directions; 1999 May 23-27; Missoula, MT

Publications Posted on: May 12, 2016
Ten papers presented as plenary talks at the conference, "Wilderness Science in a Time of Change," are included.

Past and future freshwater use in the United States

Publications Posted on: May 12, 2016
Water use in the United States to the year 2040 is estimated by extending past trends in basic water-use determinants. Those trends are largely encouraging. Over the past 35 years, withdrawals in industry and at thermoelectric plants have steadily dropped per unit of output, and over the past 15 years some irrigated regions have also increased the efficiency of their water use. Further, per-capita domestic withdrawals may have finally peaked.

Regional demand and supply projections for outdoor recreation

Publications Posted on: May 12, 2016
This paper develops regional recreation supply and demand projections, by combining coefficients from the national 1989 RPA Assessment models with regional regressor values. Regional recreation opportunity estimates also are developed, based on regional travel behavior. Results show important regional variations in projections of recreation opportunities, trip supply, and trip demand.

Data on wilderness experience stewardship from a 2001-2002 visitor survey at Gates of the Arctic National Park & Preserve

Datasets Posted on: November 24, 2015
Gates of the Arctic National Park and Preserve (GAAR) is a remote area in the Brooks Range of northern Alaska. GAAR contains more than 7 million acres of federally designated wilderness, but hosts only about 600 recreation visitors per year. A two-year, two-phase project was implemented at GAAR to provide scientific input to visitor management and backcountry planning.

Social conditions, conflict, and preference data for users in the Rattlesnake National Recreation Area in 1994

Datasets Posted on: August 27, 2015
The data available here highlight visitor preferences for naturalness and social conditions for their visitor experience in the Rattlesnake National Recreation Area (RNRA) and Wilderness in Montana. Mountain bikers and hikers in the RNRA were surveyed in 1994 to measure conflict between various user groups visiting the RNRA.

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