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: 3723
Postflood persistence and recolonization of endangered tidewater goby populations Postflood persistence and recolonization of endangered tidewater goby populations
Before-and-after surveys at several southern California sites indicated that populations of endangered tidewater goby Eucyclogobius newberryi persisted through heavy flooding in 1995. This was contrary to our expectations that flooding might have led to extirpation in some smaller wetlands. There was also no significant change in tidewater goby density before and after the flooding...
Authors
Kevin Lafferty, Camm C. Swift, Richard F. Ambrose
Interactions between northern elephant seals and vehicles near Point Piedras Blancas, California Interactions between northern elephant seals and vehicles near Point Piedras Blancas, California
Northern elephant seals, Mirounga angustirostris, were nearly extirpated in the late 19th and early 20th centuries. However, they have recovered to the point where they are now locally abundant (Stewart e t al. 1994). Stimulated by the report of human/northern elephant seal interactions in Baja California Sur (Webster and Baird 1998), we report here on an unusual terrestrial example of...
Authors
Brian B. Hatfield, Galen B. Rathbun
Results of the 1999 survey of the reintroduced sea otter population in Washington state Results of the 1999 survey of the reintroduced sea otter population in Washington state
Fifty-nine sea otters were released off the west coast of the Olympic Peninsula of Washington State during the summers of 1969 and 1970; all had been translocated from Amchitka Island, Alaska. In 1970, 30 otters were released. Surveys to assess the results of this translocation began in 1977. Up to 1989, the population has grown at near the maximum rate of increase (rmax) for sea otter...
Authors
Ronald J. Jameson, Steven J. Jeffries
Inventory and Assessment of Avifauna and a Monitoring Proposal for Tonto National Monument, Arizona Inventory and Assessment of Avifauna and a Monitoring Proposal for Tonto National Monument, Arizona
No abstract available at this time
Authors
K.L. Hiett, W. L. Halvorson
GIS database development to analyze fire history in southern Arizona and beyond: an example from Saguaro National Park GIS database development to analyze fire history in southern Arizona and beyond: an example from Saguaro National Park
No abstract available at this time
Authors
P.J. Swantek, W. L. Halvorson, C.R. Schwalbe
Predatory bird populations in the East Mojave Desert, California Predatory bird populations in the East Mojave Desert, California
No abstract available.
Authors
R.L. Knight, R.J. Camp, W.I. Boarman, H.A.L. Knight
Postflood persistence and recolonization of endangered tidewater goby populations Postflood persistence and recolonization of endangered tidewater goby populations
Before-and-after surveys at several southern California sites indicated that populations of endangered tidewater goby Eucyclogobius newberryi persisted through heavy flooding in 1995. This was contrary to our expectations that flooding might have led to extirpation in some smaller wetlands. There was also no significant change in tidewater goby density before and after the flooding...
Authors
Kevin D. Lafferty, Camm C. Swift, Richard F. Ambrose
Comparison of post-fire seedling establishment between scrub communities in Mediterranean and non-Mediterranean climate ecosystems Comparison of post-fire seedling establishment between scrub communities in Mediterranean and non-Mediterranean climate ecosystems
1 Both fire regimes and the conditions under which fires occur vary widely. Abiotic conditions (such as climate) in combination with fire season, frequency and intensity could influence vegetation responses to fire. A variety of adaptations facilitate post-fire recruitment in mediterranean climate ecosystems, but responses of other communities are less well known. We evaluated the...
Authors
M.E. Carrington, Jon E. Keeley
Radio telemetry study of Bufo californicus, arroyo toad movement patterns and habitat preferences Radio telemetry study of Bufo californicus, arroyo toad movement patterns and habitat preferences
No abstract available at this time
Authors
P. C. Griffin, T. J. Case, Robert N. Fisher
Stem demography and post-fire recruitment of a resprouting serotinous conifer Stem demography and post-fire recruitment of a resprouting serotinous conifer
The contribution of resprouts and seedling recruitment to post-fire regeneration of the South African fynbos conifer Widdringtonia nodiflora was compared eight months after wildfires in 1990. Stems on all trees were killed by fire but resprouting success was > 90 % at all but one site. A demographic study of burned skeletons revealed that prior to these fires, nearly all plants were...
Authors
Jon E. Keeley, M.B. Keeley, W.J. Bond
Science support for restoration of the Salton Sea. Recommendations of the USGS Tiger Team to the Salton Sea Science Subcommittee Science support for restoration of the Salton Sea. Recommendations of the USGS Tiger Team to the Salton Sea Science Subcommittee
No abstract available at this time
Authors
Frank S. Shipley, Douglas A. Barnum, G.F. Black, William I. Boarman, Walter G. Duffy, Michael J. Mac, David M. Miller, Tonie E. Rocke, Roy A. Schroeder, R.G. Thiery