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: 3710
Common raven juvenile survival in a human-augmented landscape Common raven juvenile survival in a human-augmented landscape
Anthropogenic resource subsidies have contributed to the dramatic increase in the abundance of Common Ravens (Corvus corax) in the western Mojave Desert, California, during the past 30 years. To better understand the effects of these subsidies on raven demography, we examined whether survival to juvenile departure from the natal territory could be predicted by a set of environmental and
Authors
William C. Webb, William I. Boarman, John T. Rotenberry
Effects of an introduced pathogen and fire exclusion on the demography of sugar pine Effects of an introduced pathogen and fire exclusion on the demography of sugar pine
An introduced pathogen, white pine blister rust (Cronartium ribicola), has caused declines in five-needled pines throughout North America. Simultaneously, fire exclusion has resulted in dense stands in many forest types, which may create additional stress for these generally shade-intolerant pines. Fire exclusion also allows fuels to accumulate, and it is unclear how affected populations...
Authors
Phillip J. van Mantgem, Nathan L. Stephenson, MaryBeth Keifer, Jon E. Keeley
Effects of radiotransmitters on the reproductive performance of Cassin's auklets Effects of radiotransmitters on the reproductive performance of Cassin's auklets
We examined whether radiotransmitters adversely affected the reproductive performance of Cassin's auklets (Ptychoramphus aleuticus) breeding on the California Channel Islands during 1999-2001. We attached external radiotransmitters to 1 partner in 108 Cassin's auklet pairs after nest initiation and used 131 unmarked, but handled, pairs as controls. Compared to alpha chicks raised by...
Authors
Joshua T. Ackerman, Josh Adams, John Y. Takekawa, Harry R. Carter, Darrell L. Whitworth, Scott H. Newman, Richard T. Golightly, Dennis L. Orthmeyer
Fire as a physical process Fire as a physical process
This chapter explores fire as a physical process, including combustion, fuel characteristics, fuel models, fire weather, ignition sources, mechanisms for fire spread, and fire effects. In wildland fuels, combustion occurs in three phases: preheating, gaseous, and smoldering. Fuel is characterized by physical and chemical properties that affect combustion and fire behavior. Its...
Authors
J. W. van Wagtendonk
Waterfowl migration on Klamath Basin National Wildlife Refuges 1953-2001 Waterfowl migration on Klamath Basin National Wildlife Refuges 1953-2001
The Klamath Basin National Wildlife Refuge (NWR) complex, located in northeastern California and southern Oregon, is situated on a major Pacific Flyway migration corridor connecting waterfowl breeding grounds in the north with major wintering grounds in California and Mexico. The complex comprises five waterfowl refuges including Lower Klamath NWR, Tule Lake NWR, Upper Klamath NWR...
Authors
David S. Gilmer, Julie L. Yee, David M. Mauser, James M. Hainline
Pilgrim Creek restoration project: bird community and vegetation structure. 2003 Annual Report Pilgrim Creek restoration project: bird community and vegetation structure. 2003 Annual Report
No abstract available at this time
Authors
B.E. Kus, B. Peterson, M. Wellik
Research and application highlight: Effectiveness of postfire seeding to reduce cheatgrass (Bromus tectorum) growth and reproduction in recently burned sagebrush steppe Research and application highlight: Effectiveness of postfire seeding to reduce cheatgrass (Bromus tectorum) growth and reproduction in recently burned sagebrush steppe
No abstract available at this time
Authors
M.L. Brooks
Pintail north-south flight paths in the Grassland Ecological Area Pintail north-south flight paths in the Grassland Ecological Area
No abstract available.
Authors
J. P. Fleskes
Northern pintail habitat use and waterfowl abundance during spring migration in southern Oregon-Northeast California (SONEC). Final Report Northern pintail habitat use and waterfowl abundance during spring migration in southern Oregon-Northeast California (SONEC). Final Report
No abstract available at this time
Authors
J. P. Fleskes, D.S. Battaglia
Lessons learned from the wildfires Lessons learned from the wildfires
No abstract available at this time
Authors
Jon E. Keeley, C. J. Fotheringham
Spatial and overwinter changes in clam populations of San Pablo Bay, a semiarid estuary with highly variable freshwater inflow Spatial and overwinter changes in clam populations of San Pablo Bay, a semiarid estuary with highly variable freshwater inflow
In many estuaries worldwide, climate trends together with human diversion of fresh water have dramatically impacted the benthos. Such impacts have sometimes been complicated by exotic species, whose invasion and persistence can be mediated by wide variations in freshwater inflow. Monitoring such changes usually involves periodic samples at a few sites; but sampling that does not...
Authors
V.K. Poulton, J.R. Lovvorn, John Y. Takekawa
Effects of trichloroethylene and perchloroethylene on wild rodents at Edwards Air Force Base, California, USA Effects of trichloroethylene and perchloroethylene on wild rodents at Edwards Air Force Base, California, USA
Effects of inhalation of volatilized trichloroethylene (TCE) or perchloroethylene (PCE) were assessed based on the health and population size of wild, burrowing mammals at Edwards Air Force Base (CA, USA). Organic soil-vapor concentrations were measured at three sites with aquifer contamination of TCE or PCE of 5.5 to 77 mg/L and at two uncontaminated reference sites. Population...
Authors
Sarah E. Spring, A. Keith Miles, Michael J. Anderson