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: 3791
Decline of native brook trout (Salvelinus fontinalis) populations along the upper West Branch of the Susquehanna River: canaries outside the coal mine Decline of native brook trout (Salvelinus fontinalis) populations along the upper West Branch of the Susquehanna River: canaries outside the coal mine
No abstract available.
Authors
J.E. Lovich, R.E. Lovich
Infestation of an introduced host, the European green crab, Carcinus maenas by a native symbiotic nemertean egg predator, Carcinonemertes epialti Infestation of an introduced host, the European green crab, Carcinus maenas by a native symbiotic nemertean egg predator, Carcinonemertes epialti
The recent introduction of the European green crab, Carcinus maenas, to the west coast of the U.S. has provided an opportunity for host transfer of the symbiotic nemertean egg predator, Carcinonemertes epialti, from its native shore crab host, Hemigrapsus oregonensis to the exotic C. maenas. Two surveys of C. maenas in Bodega Harbor, California, revealed that, in March 1995 prevalence of...
Authors
M.E. Torchin, K. D. Lafferty, A. M. Kuris
New evidence of habitat segregation between two cryptic species of Pacific skinks (Emoia cyanura and E. impar) New evidence of habitat segregation between two cryptic species of Pacific skinks (Emoia cyanura and E. impar)
No abstract available.
Authors
E.M. Bruna, Robert N. Fisher, T. J. Case
A comparative analysis of clinging ability among pad-bearing lizards A comparative analysis of clinging ability among pad-bearing lizards
We examined clinging ability, subdigital pad area and body mass in 14 pad-bearing lizard species from three families to test three predictions: (1) clinging ability and pad area should be tightly correlated among species; (2) pad area and clinging ability should scale similarly to body mass among 14 species; and (3) functional similarity in clinging capabilities should exist among...
Authors
Duncan J. Irschick, Christopher C. Austin, K. Petren, Robert N. Fisher, J. B. Losos, O. Ellers
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
Predators and ecosystem management Predators and ecosystem management
No abstract available.
Authors
J. A. Estes
Preliminary estimate of rice present in strip-harvested fields in the Sacramento Valley, California Preliminary estimate of rice present in strip-harvested fields in the Sacramento Valley, California
No abstract available.
Authors
M. R. Miller, G.D. Wylie
Developing a criterion for delisting the southern sea otter under the U.S. Endangered Species Act Developing a criterion for delisting the southern sea otter under the U.S. Endangered Species Act
Recent surveys of recovery plans indicate that criteria, such as population sizes, for delisting species from the U.S. Endangered Species Act (ESA) are often unrealistically low by scientific standards. We describe the delisting criterion for the threatened southern sea otter (Enhydra lutris nereis) developed by the Southern Sea Otter Recovery Team. A major oil spill is the most serious...
Authors
K. Ralls, D. DeMaster, J. A. Estes
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