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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: 3723

Park protection and public roads Park protection and public roads

No abstract available at this time
Authors
C. Schonewald-Cox, M. Buechner

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
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