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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: 3743

Polychlorinated biphenyls and toxaphene in Pacific tree frog tadpoles (Hyla regilla) from the California Sierra Nevada, USA Polychlorinated biphenyls and toxaphene in Pacific tree frog tadpoles (Hyla regilla) from the California Sierra Nevada, USA

Pacific tree frog (Hyla regilla) tadpoles were collected throughout the Sierra Nevada mountain range, California, USA, in 1996 and 1997 and analyzed for the presence of polychlorinated biphenyls (PCBs) and toxaphene. Whole-tadpole Σ PCB levels ranged from 244 ng/g (wet wt) at lower elevations on the western slope to 1.6 ng/g high on the eastern slope, whereas Σ toxaphene levels ranged...
Authors
Jeffrey E. Angermann, Gary M. Fellers, Fumio Matsumura

Western Sandpipers (Calidris mauri) during the non-breeding season: Spatial segregation on a hemispheric scale Western Sandpipers (Calidris mauri) during the non-breeding season: Spatial segregation on a hemispheric scale

The nonbreeding distribution of Western Sandpipers (Calidris mauri) was documented using 19 data sets from 13 sites along the Pacific and Atlantic coasts of the Americas. Western Sandpipers showed latitudinal segregation with regard to sex and age. Females wintered farther south than males. A “U” shaped pattern was found with respect to age, with juveniles occurring at higher proportions...
Authors
Silke Nebel, David B. Lank, Patrick D. O'Hara, Guillermo Fernandez, Ben Haase, Francisco Delgado, Felipe A. Estela, Lesley J. Evans Ogden, Brian A. Harrington, Barbara E. Kus, James E. Lyons, Francine Mercier, Brent Ortego, John Y. Takekawa, Nils Warnock, Sarah E. Warnock

Fire management of California shrubland landscapes Fire management of California shrubland landscapes

Fire management of California shrublands has been heavily influenced by policies designed for coniferous forests, however, fire suppression has not effectively excluded fire from chaparral and coastal sage scrub landscapes and catastrophic wildfires are not the result of unnatural fuel accumulation. There is no evidence that prescribed burning in these shrublands provides any resource...
Authors
Jon E. Keeley

Estimates of carrying capacity for sea otters in Washington state Estimates of carrying capacity for sea otters in Washington state

Analyses of eggs of three species of North American accipitrine hawks for organochlorines and heavy metals indicate that contamination with DDE may be the primary cause of recent population declines of two of the species, Cooper's hawk and sharp-shinned hawk.
Authors
K.L. Laidre, R.J. Jameson, S.J. Jeffries, R.C. Hobbs, C.E. Bowlby, G.R. VanBlaricom

Report on field activities at Adak and the western Aleutians, 2002 Report on field activities at Adak and the western Aleutians, 2002

No abstract available at this time
Authors
J. A. Estes, R.G. Anthony, Walter M. Jarman, A.K. Miles, James L. Bodkin, M.A. Ricca

Fecampia erythrocephala rediscovered: prevalence and distribution of a parasitoid of the European shore crab, Carcinus maenas Fecampia erythrocephala rediscovered: prevalence and distribution of a parasitoid of the European shore crab, Carcinus maenas

An ecological assessment of Fecampia erythrocephala, reporting its habitat distribution, abundance, host specificity, size-specific prevalence, frequency distribution among hosts, effect on host growth, and its site specificity within these hosts is presented. At the Isle of Man and near Plymouth, Fecampia erythrocephala cocoons were generally abundant on the undersides of rocks in the...
Authors
Armand M. Kuris, Mark E. Torchin, Kevin D. Lafferty
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