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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: 3724

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

Drug immobilization of walrus (Odobenus rosmarus) Drug immobilization of walrus (Odobenus rosmarus)

Five out of nine walrus (Odobenus rosmarus) were successfully immobilized at Round Island, Alaska, in May of 1978 by combinations of phencyclidine hydrochloride and acepromazine hydrochloride. A crossbow was an effective delivery technique. Walruses that had recently hauled out were more suitable for immobilization than well-rested animals. Care was taken to prevent walruses from...
Authors
D.P. DeMaster, J.B. Faro, J. A. Estes, James Taggart, C. Zabel
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