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: 3724
Carbon 13/carbon 12 ratios in photosynthesis, Carbon 13/carbon 12 ratios in photosynthesis,
No abstract available at this time
Authors
Jon E. Keeley
Seed germination and life history syndromes in the California chaparral Seed germination and life history syndromes in the California chaparral
Syndromes are life history responses that are correlated to environmental regimes and are shared by a group of species (Stebbins, 1974). In the California chaparral there are two syndromes contrasted by the timing of seedling recruitment relative to wildfires. One syndrome, here called the fire-recruiter or refractory seed syndrome, includes species (both resprouting and non-resprouting)...
Authors
Jon E. Keeley
First record of Mozambique tilapia in the San Joaquin Valley, California First record of Mozambique tilapia in the San Joaquin Valley, California
No abstract available.
Authors
T. Heyne, B. Tribbey, M.L. Brooks, J. Smith
Monitoring the impacts and persistence of fine sediment in the Prairie Creek watershed: A progress report for California Department of Transportation, 1990-1991 Monitoring the impacts and persistence of fine sediment in the Prairie Creek watershed: A progress report for California Department of Transportation, 1990-1991
No abstract available at this time
Authors
R.M. Coey, R.D. Klein, Mary Ann Madej, C.B. Meyer, D.W. Best, V.L. Ozaki
White-fronts...on the way back! White-fronts...on the way back!
No abstract available at this time
Authors
G.R. Mensik, John Y. Takekawa
Ecology of the island night lizard, Xantusia riversiana, on Santa Barbara Island, California Ecology of the island night lizard, Xantusia riversiana, on Santa Barbara Island, California
We studied the population biology and ecology of the island night lizard (Xantusia riversiana) on Santa Barbara Island, California from 1981-1988. We trapped all the major habitats on the island, using pitfall traps and Sherman small mammal traps. In addition to permanently marking individuals by toe-clipping, we used specialized marking techniques on some individuals (fluorescent powder...
Authors
Gary M. Fellers, Charles A. Drost
Mammal mortality at Arizona, California, and Nevada gold mines using cyanide extraction Mammal mortality at Arizona, California, and Nevada gold mines using cyanide extraction
No abstract available.
Authors
D. R. Clark, R. L. Hothem
Resolving Conflicts between National Parks and surrounding lands: A review and discussion Resolving Conflicts between National Parks and surrounding lands: A review and discussion
No abstract available.
Authors
C. Schonewald-Cox, M. Buechner, R. Sauvajot, B. Wilcox
Photosynthetic pathways in freshwater aquatic plants Photosynthetic pathways in freshwater aquatic plants
Recent studies show that generalizations about photosynthetic pathways, derived from terrestrial plant studies, do not apply to aquatic plants. Crassulacean acid metabolism (CAM) photosynthesis is of selective value not only in arid environments, where it enhances water-use efficiency, but also in aquatic plants of oligotrophic waters, where it enhances competitive ability in carbon...
Authors
Jon E. Keeley
Climatic control of vegetation distribution: The role of the water balance Climatic control of vegetation distribution: The role of the water balance
The water balance describes climate as it is sensed by plants, as the interaction of energy and water in the environment. Discriminant analysis showed that the distribution of North American plant formations was more highly correlated with the water balance (actual evapotranspiration and deficit) than with the more traditional measures of climate (such as temperature and precipitation)...
Authors
Nathan L. Stephenson
Indices used to assess status of sea otter populations: A reply Indices used to assess status of sea otter populations: A reply
The California sea otter (Enhydra lutris) population, after increasing for more than half a century, stabilized and probably declined from the mid-1970's to the mid-1980's. Estes et al. (1986) suggested that the stabilization and decline were not due to food limitation. Garshelis et al. (1990) challenged this suggestion, although in doing so they misrepresented arguments made by Estes et...
Authors
James A. Estes
An evaluation of techniques to measure contour feather molt in ducks An evaluation of techniques to measure contour feather molt in ducks
We evaluated 3 techniques (air jet, flat skin, grab sample) to assess molt in dead waterfowl (green- winged teal [Anas crecca] and king eider [Somateria spectabilis]). The air jet technique was fast and required no specimen preparation. The flat skin technique required lengthy preparation time after which molt was assessed quickly. Both techniques underestimated the extent of molt (P 0...
Authors
Rodger D. Titman, Marie-Christine LaGrenade, Michael R. Miller