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
Temporal patterns of seed use and availability in a guild of desert ants Temporal patterns of seed use and availability in a guild of desert ants
1 Temporal patterns of seed use were studied from late winter to autumn in three species of seed-harvesting ants in the Sonoran Desert. Measures of effective foraging activity, dietary niche breadth and dietary niche overlaps were obtained each month and were tested for correlation with estimates of the available seed resource.2 Seeds were the only numerically important type of food in...
Authors
Patricia Mehlhop, Norman J. Scott
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
Ecology and social structure of the rufous elephant-shrew (Elephantulus rufescens) Ecology and social structure of the rufous elephant-shrew (Elephantulus rufescens)
No abstract available at this time
Authors
G. B. Rathbun
Commentary on the ESA's Public Policy responsibility Commentary on the ESA's Public Policy responsibility
No abstract available.
Authors
W. L. Halvorson
The reaction of bighorn sheep to human disturbance in the San Gabriel Mountains, California The reaction of bighorn sheep to human disturbance in the San Gabriel Mountains, California
No abstract available.
Authors
K.M. Hamilton, S. Holl, C. L. Douglas
Use of Kings Bay, Crystal River, Florida by the West Indian manatee (Trichechus manatus) Use of Kings Bay, Crystal River, Florida by the West Indian manatee (Trichechus manatus)
No abstract available at this time
Authors
H. I. Kochman, G. B. Rathbun, J. A. Powell
Checklist of reptiles and amphibians Checklist of reptiles and amphibians
No abstract available at this time
Authors
N.J. Scott, J.M. Savage, D.C. Robinson
Gas exchange characteristics of the submerged aquatic Crassulacean acid metabolism plant, Isoetes howellii Gas exchange characteristics of the submerged aquatic Crassulacean acid metabolism plant, Isoetes howellii
The submerged aquatic plant Isoetes howellii Engelmann possesses Crassulacean acid metabolism (CAM) comparable to that known from terrestrial CAM plants. Infrared gas analysis of submerged leaves showed Isoetes was capable of net CO2 uptake in both light and dark. CO2 uptake rates were a function of CO2 levels in the medium. At 2,500 microliters CO2 per liter (gas phase, equivalent to 1...
Authors
Jon E. Keeley, G. Bowes