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
Potential uses of water hyacinths in the Tucson area--an addendum for the Pima County Wastewater Management Department Potential uses of water hyacinths in the Tucson area--an addendum for the Pima County Wastewater Management Department
No abstract available at this time
Authors
P. Warshall, M. Jennings
Crassulacean acid metabolism in Isoetes bolanderi in high elevation oligotrophic lakes Crassulacean acid metabolism in Isoetes bolanderi in high elevation oligotrophic lakes
Isoetes bolanderi dominates the littoral flora of Siesta (elevation 2,440 m) and Ellery (2,905 m) lakes in the Sierra Nevada Range of California, USA. Both lakes are sparsely vegetated and I. bolanderi maintained aboveground oven dry weight of 30–50 m−22 through most of the 1981 summer growing season. Plants at the higher elevation Ellery Lake were half as large as plants at Siesta Lake...
Authors
Jon E. Keeley, C.M. Walker, R.P. Mathews
Crassulacean acid metabolism in the seasonally submerged aquatic Isoetes howellii Crassulacean acid metabolism in the seasonally submerged aquatic Isoetes howellii
Evidence to date is consistent with the hypothesis that the submerged aquatic Isoetes howellii Engelmann possesses crassulacean acid metabolism. Quantitative 14C uptake studies indicate that CO2 assimilation in both the light and dark are functions of pH and total inorganic carbon level. In both the light and dark, maximum uptake rates in 0.6 mM NaHCO3 were double the rates in 0.3 mM...
Authors
Jon E. Keeley
Summary of available population information on California sea otters Summary of available population information on California sea otters
No abstract available at this time
Authors
J. A. Estes, R.J. Jameson
Lack of diurnal acid metabolism in two terrestrial Isoetes species Lack of diurnal acid metabolism in two terrestrial Isoetes species
No abstract available.
Authors
Jon E. Keeley
An annotated check list of the amphibians and reptiles of California An annotated check list of the amphibians and reptiles of California
No abstract available.
Authors
M.R. Jennings
Flocking and predator avoidance in wintering shorebirds Flocking and predator avoidance in wintering shorebirds
No abstract available at this time
Authors
B.E. Kus
Dunlins and merlins: predator avoidance in wintering shorebirds Dunlins and merlins: predator avoidance in wintering shorebirds
No abstract available at this time
Authors
B.E. Kus
Feeding and predation: the significance of flocking in wintering shorebirds Feeding and predation: the significance of flocking in wintering shorebirds
No abstract available at this time
Authors
B.E. Kus
Status of the West Indian manatee in Honduras Status of the West Indian manatee in Honduras
Aerial surveys and interviews with fisherman in Honduras indicate that manatee numbers are low. There is an abundance of suitable habitat, and evidence on the proportion of calves indicates that manatees are reproducing. Although natural mortality occurs when the animals are trapped in small landlocked coastal lagoons, the greatest threat to manatees is from subsistence hunting for their...
Authors
G. B. Rathbun, J. A. Powell, G. Cruz
Reptiles and amphibians. Introduction Reptiles and amphibians. Introduction
No abstract available at this time
Authors
N.J. Scott, S. Limerick
First nests of Heermann's Gull in the United States First nests of Heermann's Gull in the United States
No abstract available.
Authors
J. A. Howell, D. Laclerque, S. Paris, W. Boarman, A. DeGange, L. Binford