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
Diurnal photosynthesis cycle in CAM and non-CAM seasonal pool aquatic macrophytes Diurnal photosynthesis cycle in CAM and non-CAM seasonal pool aquatic macrophytes
Seasonal pools undergo marked diurnal changes in pH, free carbon dioxide, and oxygen levels. Previous studies showed that Isoetes howellii utilized crassulacean acid metabolism (CAM) photosynthesis as a means of assimilating carbon at night when ambient carbon dioxide levels are high. However, much of the pool flora is not CAM. We hypothesized that coexistence under extreme carbon...
Authors
Jon E. Keeley, Darren R. Sandquist
Density cycles in an island population of deer mice, Peromyscus maniculatus Density cycles in an island population of deer mice, Peromyscus maniculatus
We report on eight years of data for a population of deer mice (Peromyscus maniculatus) on Santa Barbara Island, California which reaches exceptionally high densities and fluctuates markedly in an apparent three- to four-year cycle. The cyclic increase follows winters with high rainfall, and the decline may be similarly associated with low rainfall winters. The peak and early decline is...
Authors
Charles A. Drost, Gary M. Fellers
The relationship between stable oxygen and hydrogen isotope ratios of water in astomatal plants The relationship between stable oxygen and hydrogen isotope ratios of water in astomatal plants
Isotropic fractination of leaf water during transpiration is influenced by both equilibrium and kinetic factors. Previous workers have predicted that the influence of each factor varies depending upon the path of water loss,m whether centralized through stomata, or diffuse through the cuticle. We studied the relationship between the δD and δ18O values of lead and stem waters of laurel...
Authors
Lee W. Cooper, Michael J. DeNiro, Jon E. Keeley
Valley oak seedling growth associated with selected grass species Valley oak seedling growth associated with selected grass species
No abstract available at this time
Authors
K.C. Danielsen, W. L. Halvorson
Nutrition and foraging ecology of the desert tortoise (Gopherus agassizii): FY1990 annual report Nutrition and foraging ecology of the desert tortoise (Gopherus agassizii): FY1990 annual report
No abstract available at this time
Authors
T. C. Esque, L.A. DeFalco, R.B. Bury
High survival rates for female northern pintails in California's Sacramento Valley High survival rates for female northern pintails in California's Sacramento Valley
No abstract available at this time
Authors
M. R. Miller, J. P. Fleskes, D.L. Orthmeyer, D.S. Gilmer
Third year of sea otter translocation completed in California Third year of sea otter translocation completed in California
No abstract available at this time
Authors
G. B. Rathbun, C.T. Benz
Dabbling duck recruitment in relation to habitat and predators at Union Slough National Wildlife Refuge, Iowa Dabbling duck recruitment in relation to habitat and predators at Union Slough National Wildlife Refuge, Iowa
No abstract available at this time
Authors
J. P. Fleskes, Erwin E. Klaas
Surveys of California sea otter population show positive growth trend Surveys of California sea otter population show positive growth trend
No abstract available at this time
Authors
R.J. Jameson, James A. Estes
[Book review] Little islands floating in seas of indifference? [Book review] Little islands floating in seas of indifference?
Review of: NATURE RESERVES; ISLAND THEORY AND CONSERVATION PRACTICE 1990. by Craig L. Shafer. Smithsonian Institution Press. Washington and London, 189 pp. ISBN 0-87474-805-4.
Authors
C. Schonewald-Cox