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: 3776
Antelope Coal Company vegetation monitoring program: control area studies Antelope Coal Company vegetation monitoring program: control area studies
No abstract available at this time
Authors
K. McEachern
Sea otters and shellfisheries Sea otters and shellfisheries
No abstract available at this time
Authors
J. A. Estes, G.R. VanBlaricom
Water Resources Management Plan for Redwood National Park. Arcata, California Water Resources Management Plan for Redwood National Park. Arcata, California
No abstract available at this time
Authors
Mary Ann Madej
Exotic Fireweed, Erectites arguta. A Report to the Superintendent, Channel Islands National Park Exotic Fireweed, Erectites arguta. A Report to the Superintendent, Channel Islands National Park
No abstract available at this time
Authors
W. L. Halvorson
Carbon assimilation characteristics of the aquatic CAM plant Isoetes howellii Carbon assimilation characteristics of the aquatic CAM plant Isoetes howellii
The relationship between malic acid production and carbon assimilation was examined in the submerged aquatic Crassulacean acid metabolism (CAM) plant, Isoetes howellii Engelmann. Under natural conditions free-CO2 level in the water was highest at 0600 hours and 14CO2 assimilation rates in I. howellii were also highest at this time. After 0900 hours there was a similar pattern in (a) rate...
Authors
Jon E. Keeley, G. Busch
Hydrogen, oxygen, and carbon isotope ratios of cellulose from submerged aquatic Crassulacean acid metabolism and non-Crassulacean acid metabolism plants Hydrogen, oxygen, and carbon isotope ratios of cellulose from submerged aquatic Crassulacean acid metabolism and non-Crassulacean acid metabolism plants
Isotope ratios of cellulose and cellulose nitrate from aquatic Crassulacean acid metabolism (CAM) and non-CAM plants were determined. Cellulose oxygen istope ratios for all plants that grew together were virtually identical, whereas large differences were observed for hydrogen isotope ratios of cellulose nitrate between CAM and non-CAM plants. Carbon isotope ratios of cellulose nitrate...
Authors
L. Sternberg, M. J. DeNiro, Jon E. Keeley
Stylites, a vascular land plant without stomata absorbs CO2 via its roots Stylites, a vascular land plant without stomata absorbs CO2 via its roots
Photosynthetic organs of most higher plants normally have access to atmospheric CO2 through stomatal pores which also serve as variable valves to control the loss of H2O vapour which accompanies CO2 uptake1. The acquisition of stomata is commonly thought to have been a crucial development permitting ‘conquest’ of land and direct access of plants to atmospheric CO2. Only in desert stem...
Authors
Jon E. Keeley, C.B. Osmond, J.A. Raven
Search theory and convergent spore morphology Search theory and convergent spore morphology
No abstract available.
Authors
Jon E. Keeley
Distribution and abundance of manatees along the northern coast of the Gulf of Mexico Distribution and abundance of manatees along the northern coast of the Gulf of Mexico
A review of historical and recent records of manatee (Trichechus manatus) sightings along the coast of the northern Gulf of Mexico indicates that their numbers have declined in Texas, but increased in Louisiana and Mississippi. This is due to their extirpation in Mexico and dramatic increase along the southern Big Bend coast of northwestern peninsular Florida. The distribution of...
Authors
J. A. Powell, G. B. Rathbun