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: 3776
Rearing Pacific salmon in saltwater ponds fertilized with domestic wastewater; data report -- June 1979-May 1980 Rearing Pacific salmon in saltwater ponds fertilized with domestic wastewater; data report -- June 1979-May 1980
No abstract available at this time
Authors
G.H. Allen, J. Hedgepeth, J. Pandozzi, M. Jennings
Enumeration of prairie wetlands with Landsat and aircraft data. Photogrammetric Engineering and Remote Sensing Enumeration of prairie wetlands with Landsat and aircraft data. Photogrammetric Engineering and Remote Sensing
No abstract available at this time
Authors
D.S. Gilmer, E.A. Work, J.E. Colwell, D.L. Rebel
Conservation of the amphibia of the United States: a review Conservation of the amphibia of the United States: a review
No abstract available.
Authors
R. Bruce Bury, C. Kenneth Dodd, Gary M. Fellers
Drinking and construction of water catchments by the desert tortoise, Gopherus agassizii, in the Mojave Desert Drinking and construction of water catchments by the desert tortoise, Gopherus agassizii, in the Mojave Desert
No abstract available.
Authors
P.A. Medica, R.B. Bury, R. Luckenbach
Wilderness permit compliance and validity Wilderness permit compliance and validity
In Yosemite National Park, 92 percent of the parties using back country areas had permits. Parties without permits were smaller in size and stayed for shorter periods of time. For all parties with permits, 62 percent made changes to their trips. Parties changing their trips in both time and space accounted for 27 percent of the total, while 14 percent made temporal changes only, and 21...
Authors
J. W. van Wagtendonk, J.M. Benedict
Travel time variation on backcountry trails Travel time variation on backcountry trails
Numerous interrelated factors influence the travel times of hikers and riders on backcountry trails. This study sought to quantify those factors which were thought to be most important in affecting trail speeds. The travel times of 897 backpacking parties, 634 day hiking parties, and 111 riding parties were obtained from gentle (0.75%), moderate (5.0%), and steep (12.5%) trail segments...
Authors
J. W. van Wagtendonk, J.M. Benedict
Human disturbance at water sources of desert bighorn sheep Human disturbance at water sources of desert bighorn sheep
No abstract available.
Authors
D.M. Leslie, C. L. Douglas
Visitor use patterns in Yosemite National Park Visitor use patterns in Yosemite National Park
After several years of dramatic increases, visitor use in Yosemite National Park has leveled off to an average of 2.4 million visits per year. Coincident with this decline in the growth rate, there have been some changes in visitation trends and patterns. Data collected in the park show that the average length of stay has decreased to less than 32 hours and that the average number of...
Authors
J. W. van Wagtendonk
The effect of past management actions on the composition and structure of vegetation in the Grant Tree portion of Grant Grove, Kings Canyon National Park, California The effect of past management actions on the composition and structure of vegetation in the Grant Tree portion of Grant Grove, Kings Canyon National Park, California
No abstract available at this time
Authors
D. Kauper, N. Stephenson, T. Warner
Selected vertebrate endangered species of the sea coast of the United States - southern sea otter Selected vertebrate endangered species of the sea coast of the United States - southern sea otter
No abstract available at this time
Authors
R.J. Jameson, B. Csuiti
A comparison of populations of the desert tortoise (Gopherus agassizii) in grazed and ungrazed areas in Ivanpah Valley, California A comparison of populations of the desert tortoise (Gopherus agassizii) in grazed and ungrazed areas in Ivanpah Valley, California
No abstract available at this time
Authors
F.B. Turner, P.A. Medica, C.L. Lyons
Undersea topography and distribution of dolphins of the genus Delphinus in the Southern California Bight Undersea topography and distribution of dolphins of the genus Delphinus in the Southern California Bight
Aerial surveys totalling 21,902 km were analyzed in the Southern California Bight. Although the genus Delphinus is easily recognizable from aircraft, the different species are not detectable in these flights. Delphinus occur more frequently in areas of high relief than in areas of low relief. The depth of the water does not appear to influence distribution of Delphinus. The availability...
Authors
Clifford A. Hui