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
Foraging distance and home range of Cassin's Auklets nesting at two colonies in the California Channel Islands Foraging distance and home range of Cassin's Auklets nesting at two colonies in the California Channel Islands
We radio-marked 99 Cassin's Auklets (Ptychoramphus aleuticus) nesting at two colonies, Prince Island and Scorpion Rock, separated by 90 km in the California Channel Islands to quantify foraging distance, individual home-range area, and colony-based foraging areas during three consecutive breeding seasons. Auklets generally foraged 30 km from each colony in all years. Core foraging areas...
Authors
Josh Adams, John Y. Takekawa, Harry R. Carter
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
Fire and landscapes: patterns and processes Fire and landscapes: patterns and processes
No abstract available at this time
Authors
J. W. van Wagtendonk
American Indian influence on fire regimes in Calfornia's coastal ranges American Indian influence on fire regimes in Calfornia's coastal ranges
Understanding the historical pattern of human impacts on landscapes is critical to correctly interpreting the ecological basis for vegetation distribution. In some parts of the world, such as the Mediterranean Basin, a long and intensive utilization of resources has greatly altered the distribution of forests and woodlands. Was vegetation distribution in the coastal ranges of California...
Authors
Jon E. Keeley
Results of 2004 monitoring for giant garter snakes (Thamnophis gigas) for the bank protection project on the left bank of the Colusa Basin Drainage Canal in Reclamation District 108, Sacramento River bank protection project, phase II Results of 2004 monitoring for giant garter snakes (Thamnophis gigas) for the bank protection project on the left bank of the Colusa Basin Drainage Canal in Reclamation District 108, Sacramento River bank protection project, phase II
No abstract available at this time
Authors
G.D. Wylie
Testing a basic assumption of shrubland fire management: h=How important is fuel age? Testing a basic assumption of shrubland fire management: h=How important is fuel age?
This year's catastrophic wildfires in southern California highlight the need for effective planning and management for fire-prone landscapes. Fire frequency analysis of several hundred wildfires over a broad expanse of California shrublands reveals that there is generally not, as is commonly assumed, a strong relationship between fuel age and fire probabilities. Instead, the hazard of...
Authors
Max A. Moritz, Jon E. Keeley, Edward A. Johnson, Andrew A. Schaffner
An experimental demonstration of stem damage as a predictor of fire-caused mortality for ponderosa pine An experimental demonstration of stem damage as a predictor of fire-caused mortality for ponderosa pine
No abstract available.
Authors
P. J. van Mantgem, M.W. Schwartz
2000-2002 Anza-Borrego Desert State Park Amphibian Survey 2000-2002 Anza-Borrego Desert State Park Amphibian Survey
No abstract available at this time
Authors
M.L. Warburton, Robert N. Fisher, S.A. Hathaway
Fire in California ecosystems Fire in California ecosystems
No abstract available at this time
Authors
N. G. Sugihara, J. W. van Wagtendonk, J. Fites-Kaufman, K. E. Shaffer, A. E. Thode
Sierra Nevada bioregion Sierra Nevada bioregion
This chapter addresses the immediately south of the Cascades in the Sierra Nevada bioregion, extending nearly half the length of the state of California. This bioregion is one of the most striking features of the state of California, extending from the southern Cascade Mountains in the north to the Tehachapi Mountains and Mojave Desert 700 km to the south. Moreover, the fire responses of...
Authors
J. W. van Wagtendonk, J. Fites-Kaufman
Lessons from the 2003 wildfires in southern California Lessons from the 2003 wildfires in southern California
The Southern California fires of late Oct. 2003 burned 742,000 ac and destroyed 3,361 homes and 26 lives. Factors leading up to this event were very different between forests, which comprised about 5% of the area burned, and shrublands. Three lessons are (1) although these fires were massive, they were not unprecedented, and future fires of this magnitude are to be expected; (2) the...
Authors
Jon E. Keeley, C. J. Fotheringham, M. A. Moritz
Is predation on waterfowl nests density dependent? Tests at three spatial scales Is predation on waterfowl nests density dependent? Tests at three spatial scales
We tested whether predation on duck nests (Anas spp.) was density dependent at three spatial scales using artificial and natural nests in the Suisun Marsh, California, USA. At the largest spatial scale, we used 5 years (1998–2002) of data to examine the natural variation in duck nest success and nest densities among 8–16 fields per year, each 5–33 ha in size (n=62 fields). At an...
Authors
Joshua T. Ackerman, Alexis L. Blackmer, John M. Eadie