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: 3743
Estimating the historical abundance of sea otters in California Estimating the historical abundance of sea otters in California
No abstract available at this time
Authors
D.P. DeMaster, C. Marzin, R.J. Jameson
Mitochondrial-DNA variation among subspecies and populations of sea otters (Enhydra lutris) Mitochondrial-DNA variation among subspecies and populations of sea otters (Enhydra lutris)
We used restriction-enzyme analysis of polymerase-chain reaction-amplified, mitochondrial DNA (mtDNA) to assess genetic differentiation of subspecies and populations of sea otters, Enhydra lutris, throughout the range of the species. There were several haplotypes of mtDNA in each subspecies and geographically separate populations. MtDNA sequence divergence of haplotypes of sea otters was...
Authors
Matthew A. Cronin, James L. Bodkin, Brenda E. Ballachey, James A. Estes, John C. Patton
Altered behavior of parasitized killifish increases susceptibility to predation by bird final hosts Altered behavior of parasitized killifish increases susceptibility to predation by bird final hosts
Parasites that are transmitted from prey to predator are often associated with altered prey behavior. Although many concur that behavior modification is a parasite strategy that facilitates transmission by making parasitized prey easier for predators to capture, there is little evidence from field experiments. We observed that conspicuous behaviors exhibited by killfish (Fundulus...
Authors
Kevin D. Lafferty, A. K. Morris
Geographic variation in migratory behavior of greater white-fronted geese (Anser albifrons) Geographic variation in migratory behavior of greater white-fronted geese (Anser albifrons)
We studied the migration and winter distribution of adult Greater White-fronted Geese (Anser albifrons frontalis) radio-marked on the Yukon-Kuskokwim Delta (YKD) and Bristol Bay Lowlands (BBL) of Alaska from 1987 to 1992. The major autumn staging site for geese from both breeding areas was the Klamath Basin on the California/Oregon border. However, temporal use of this area differed...
Authors
Craig R. Ely, John Y. Takekawa
Physical properties of woody fuel particles of Sierra Nevada conifers Physical properties of woody fuel particles of Sierra Nevada conifers
A study of the physical properties of Sierra Nevada conifer fuel particles showed that average diameter, squared quadratic mean diameter, surface-area-to-volume ratio, and specific gravity varied significantly by species for all four timelag fuel diameter size classes. The nonhorizontal angle was not significantly affected by size class, and the developmental stage of the overstory did...
Authors
J. W. van Wagdendonk, J.M. Benedict, W.M. Sydoriak
Comparative utility of vegetation maps of different resolutions for conservation planning Comparative utility of vegetation maps of different resolutions for conservation planning
No abstract available at this time
Authors
P.A. Stine, F.D. Davis, B. Csuti, J. M. Scott
Comments on the proposed conservation of Hydromantes Gistel, 1848 (Amphibia, Caudata) by the designation of Salamandra genei Temminck & Schlegel, 1838 as the type species (Case 2868; see BZN 50:219-223; 51:149-153; 52:183-186, 339-342) Comments on the proposed conservation of Hydromantes Gistel, 1848 (Amphibia, Caudata) by the designation of Salamandra genei Temminck & Schlegel, 1838 as the type species (Case 2868; see BZN 50:219-223; 51:149-153; 52:183-186, 339-342)
No abstract available.
Authors
H.M. Smith, D.B. Wake, M.R. Jennings
Reproduction in a Sonoran Desert population of the desert tortoise (Gopherus agassizii) Reproduction in a Sonoran Desert population of the desert tortoise (Gopherus agassizii)
No abstract available.
Authors
R.C. Murray, C.R. Schwalbe, S.J. Bailey, S.P. Cuneo, S.D. Hart
Cytochrome P450 and contaminant concentrations in nestling black-crowned night-herons and their interrelation with sibling embryos Cytochrome P450 and contaminant concentrations in nestling black-crowned night-herons and their interrelation with sibling embryos
Hepatic cytochrome P450-associated monooxygenase activities were measured in 11-d-old nestling black-crowned night-herons (Nycticorax nycticorax) collected from a reference site (next to Chincoteague National Wildlife Refuge, VA, USA) and three contaminated sites (Cat Island, Green Bay, WI, USA; Bair Island, San Francisco Bay, CA, USA; and West Marin Island, San Francisco Bay, CA, USA)
Authors
Barnett A. Rattner, Mark J. Melancon, Thomas W. Custer, Roger L. Hothem