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
Habitat preferences of wintering shorebirds in a temporally changing environment: Western sandpipers in the San Francisco Bay estuary Habitat preferences of wintering shorebirds in a temporally changing environment: Western sandpipers in the San Francisco Bay estuary
We examined habitat preferences of 106 radio-marked Western Sandpipers (Calidris mauri) in the San Francisco Bay estuary during winter and spring at two scales: comparing proportions of habitats in their home range with habitats available in the study area (second-order selection), and comparing proportions of radio locations in different habitats with their availability in the home...
Authors
S.E. Warnock, John Y. Takekawa
Historic distribution, current status and range extension of Bufo boreas in Utah Historic distribution, current status and range extension of Bufo boreas in Utah
No abstract available.
Authors
D.A. Ross, T. C. Esque, R.A. Fridell, P. Hovingh
Foraging patterns of California sea otters as indicated by telemetry Foraging patterns of California sea otters as indicated by telemetry
Foraging behavior was studied in 38 sea otters (Enhydra lutris) implanted with radio transmitters. The observed foraging behavior of instrumented individuals was similar to that of uninstrumented otters observed in previous studies: dive duration varied with prey type but not with prey size, dive success was highest for small prey, and the length of surface intervals increased with prey...
Authors
Katherine Ralls, Brian B. Hatfield, Donald B. Siniff
Environmental contaminants in eggs of California least terns (Sterna antillarum browni) Environmental contaminants in eggs of California least terns (Sterna antillarum browni)
No abstract available.
Authors
R. L. Hothem, Stephani Zador
Estimating ages of giant sequoias Estimating ages of giant sequoias
No abstract available.
Authors
N.L. Stephenson, A. Demetry
Benefits of protective fencing to plant and rodent communities of the western Mojave Desert, California Benefits of protective fencing to plant and rodent communities of the western Mojave Desert, California
Human disturbance in the western Mojave Desert takes many forms. The most pervasive are livestock grazing and off-highway vehicle use. Over the past few decades several areas within this region have been fenced to preclude human disturbance. These areas provide opportunities to study the impact of human activities in a desert ecosystem. This paper documents the response of plant and...
Authors
M.L. Brooks
Invertebrate communities Invertebrate communities
No abstract available at this time
Authors
C.P. Sandoval, K. D. Lafferty
Population status of the mountain yellow-legged frog (Rana muscosa) in the Angeles National Forest. Final report prepared for the United States Department of Agriculture, Angeles National Forest, Arcadia, California, through Interagency Agreement (5-01-6 Population status of the mountain yellow-legged frog (Rana muscosa) in the Angeles National Forest. Final report prepared for the United States Department of Agriculture, Angeles National Forest, Arcadia, California, through Interagency Agreement (5-01-6
No abstract available at this time
Authors
M.R. Jennings
Bullfrogs: Introduced predators in southwestern wetlands Bullfrogs: Introduced predators in southwestern wetlands
In the American Southwest, much of the native fish fauna is facing extinction (Minckley and Deacon 1991); frogs in California (Fellers and Drost 1993) and frogs and garter snakes in Arizona (Schwalbe and Rosen 1988) are also in critical decline. Habitat destruction and introduced predators appear to be primary causes of native frog declines (Jennings and Hayes 1994), and habitat...
Authors
Philip C. Rosen, Cecil R. Schwalbe
Santa Barbara County wetlands Santa Barbara County wetlands
No abstract available at this time
Authors
K. D. Lafferty
A list of individuals with expertise in working with the amphibians and reptiles of California A list of individuals with expertise in working with the amphibians and reptiles of California
No abstract available at this time
Authors
M.R. Jennings