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: 3585
Assessment of the sensitivity of Missouri reservoirs to acidification
We used water quality information from 103 Missouri reservoirs to assess their sensitivity to acidification from acidic atmospheric deposition. Total alkalinity less than 20 mg/L or a Calcite Saturation Index (CSI) of 1.0 or greater were the criteria to classify reservoirs as sensitive to acidification. Most of the reservoirs (83 of 103) would be considered circumneutral, hard water systems with h
Authors
G.D. Wylie, J.R. Jones
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) used in sev
Authors
Nathan L. Stephenson
C4 acid fixation in photosynthesis of the submerged aquatic Eleocharis acicularis (L.) R. & S
Eleocharis acicularis (L.) R. & S. is a widely distributed submerged aquatic macrophyte. In southern California, it codominates shallow seasonal pools with the aquatic CAM plant Isoetes howellii Engelm. Like the latter species, E. acicularis is apparently restricted to uptake of free-CO2; bicarbonate uptake is negligible, as indicated by poor carbon fixation at pH 7 and higher oxygen evolution at
Authors
B. A. Morton, Jon E. Keeley
Bioaccumulation of selenium in birds at Kesterson Reservoir, California
This study was conducted to determine selenium (Se) concentrations in tissues of birds collected during the 1983-1985 nesting seasons at Kesterson Reservoir (an area receiving high-Se irrigation drainage water), compare them with birds from reference sites within California's Central Valley, and relate them to food-chain Se concentrations at the study sites. Within years, Se in livers of adult bir
Authors
Harry M. Ohlendorf, Roger L. Hothem, Christine M. Bunck, Katherine C. Marois
The California Valley grassland
Grasslands are distributed throughout California from Oregon to Baja California Norte and from the coast to the desert (Brown 1982) (Figure 1). This review will focus on the dominant formation in cismontane California, a community referred to as Valley Grassland (Munz 1959). Today, Valley Grassland is dominated by non-native annual grasses in genera such as Avena (wild oat), Bromus (brome grass)
Authors
J. E. Keeley
Damaged ecosystems get attention at Channel Inslands
No abstract available at this time
Authors
W. L. Halvorson
Distribution of Pacific Flyway greater white-fronted geese in Mexico
No abstract available at this time
Authors
John Y. Takekawa, Craig R. Ely
Monitoring the population dynamics of a reintroduced mountain sheep herd in the Sierra Nevada, California
No abstract available at this time
Authors
L.S. Chow, J.A. Keay, P.E. Moore
Movements of pintails suggest high fidelity to wintering areas
No abstract available at this time
Authors
M. R. Miller
[Book review] Mediterranean-type Ecosystems: A Data Source Book, edited by R.L. Specht
Review of: Mediterranean-type Ecosystems: A Data Source Book. R.L. Sprecht, ed. Tasks for Vegetation Science, 19. 248 pp. Kluwer, 1988. $125.
Authors
J. E. Keeley
The development and significance of melanism in the slider turtle
No abstract available at this time
Authors
J.E. Lovich, C.J. McCoy, W.R. Garstka
The feeding ecology of the slider turtle
No abstract available at this time
Authors
R.R. Parmenter, H.W. Avery