Publications
Below is a list of WERC's peer-reviewed publications. If you are searching for a specific publication and cannot find it in this list, please contact werc_web@usgs.gov
Filter Total Items: 3789
The effect of use limits on backcountry visitation trends in Yosemite National Park The effect of use limits on backcountry visitation trends in Yosemite National Park
Backcountry use in Yosemite National Park increased drastically during the decade starting in the mid 1960s. In 1975, use reached a maximum of nearly 79,000 visitors and 219,000 visitor nights. Since then use has leveled off to about 89 percent of the peak figures for visitors and 84 percent for visitor nights. This leveling off is attributed primarily to a general trend of decreased...
Authors
J. W. van Wagtendonk
A survey for wintering and migrating bald eagles and critical habitat in the Lower Missouri Region, Colorado, Kansas, Nebraska, and Wyoming A survey for wintering and migrating bald eagles and critical habitat in the Lower Missouri Region, Colorado, Kansas, Nebraska, and Wyoming
No abstract available at this time
Authors
L.E. Fisher, J. Hartman, J. A. Howell, D. Busch
A comparison of populations of desert tortoises, Gopherus agassizii in grazed and ungrazed areas in Ivanpah Valley, California A comparison of populations of desert tortoises, Gopherus agassizii in grazed and ungrazed areas in Ivanpah Valley, California
No abstract available at this time
Authors
P.A. Medica, C.L. Lyons, F.B. Turner
Environmental Assessment: Activities Proposed by the San Francisco Clean Water Program at Ocean Beach, Golden Gate National Recreation Area Environmental Assessment: Activities Proposed by the San Francisco Clean Water Program at Ocean Beach, Golden Gate National Recreation Area
No abstract available at this time
Authors
N. Hornor, J. A. Howell, K. Wong
Parasites of chinook salmon (Oncorhynchus tshawytscha) and coho salmon (Oncorhynchus kisutch) from the Mad River and vicinity, Humboldt County, California Parasites of chinook salmon (Oncorhynchus tshawytscha) and coho salmon (Oncorhynchus kisutch) from the Mad River and vicinity, Humboldt County, California
No abstract available at this time
Authors
M.R. Jennings
Antelope Creek alluvial valley floor assessment Antelope Creek alluvial valley floor assessment
No abstract available at this time
Authors
K. McEachern
Dave Johnston Mine reclamation report Dave Johnston Mine reclamation report
No abstract available at this time
Authors
K. McEachern
Carnivorous mammals: the case of the sea otter Carnivorous mammals: the case of the sea otter
No abstract available at this time
Authors
J. A. Estes
Procedures for the use of aircraft in wildlife biotelemetry studies Procedures for the use of aircraft in wildlife biotelemetry studies
This is a report on the state of the art methodology and on questions that arise while one is preparing to use aircraft in a biotelemetry study. In general the first step in preparing to mount an antenna on an aircraft is to consult with a certified aircraft mechanic. Aircraft certification is discussed to provide background information concerning the role of the Federal Aviation...
Authors
David S. Gilmer, Lewis M. Cowardin, Renee L. Duval, Larry M. Mechlin, Charles W. Shaiffer, V.B. Kuechle
Major sediment sources and limits to the effectiveness of erosion control techniques in the highly erosive watersheds of north coastal California Major sediment sources and limits to the effectiveness of erosion control techniques in the highly erosive watersheds of north coastal California
No abstract available at this time
Authors
H.M. Kelsey, Mary Ann Madej, J. Pitlick, P. Stroud, M. Coghlan
Reproductive cycles and fire regimes Reproductive cycles and fire regimes
No abstract available at this time
Authors
Jon E. Keeley