Publications
This list of publications includes peer-review journal articles, official USGS publications series, reports and more authored by scientists in the Ecosystems Mission Area. A database of all USGS publications, with advanced search features, can be accessed at the USGS Publications Warehouse.
Filter Total Items: 41918
Metabolism and thermoregulation in the sea otter
No abstract available.
Authors
P. Morrison, M. Rosenman, J. A. Estes
Depredation of sea otter pups by bald eagles at Amchitka Island, Alaska
No abstract available.
Authors
S. Sherrod, J. A. Estes, C.M. White
Longevity of nonsprouting Ceanothus
Evidence is presented indicating species of Ceanothus in the subgenus Cerastes are generally longer-lived than species in the subgenus Euceanothus. It is proposed that this is due, at least in part, to the unique stem morphology of the former. The stems of these plants have a ribbed appearance which arises when branches die. This longitudinal channeling results in less nonphotosynthetic tissue to
Authors
Jon E. Keeley
Productivity and flowering of winter ephemerals in relation to Sonoran Desert shrubs
Ephemeral plant biomass and density on a Sonoran Desert hill near Cave Creek, Arizona, vary relative to shrub canopy type and shrub density. Higher shrub density associated with increased elevation appears to decrease both ephemeral biomass productivity and density, while ephemeral growth is enhanced under a shrub canopy if it is not too dense or low-hanging. Phenology of ephemerals on the desert
Authors
William L. Halvorson, Duncan T. Patten
Growth of the desert tortoise (Gopherus agassizi) in Nevada
No abstract available.
Authors
P.A. Medica, R.B. Bury, F.B. Turner
Additional records of reptiles from Jalisco, Mexico
No abstract available.
Authors
P.A. Medica, R.G. Arndt
Effects of pH on toxicity of antimycin to fish
Abstract has not been submitted
Authors
L. L. Marking
Behavioral interactions in North American treefrogs (Hylidae)
No abstract available.
Authors
Gary M. Fellers
Long-term effects of 4-aminopyridine exposure to birds and fish
Abstract has not been submitted
Authors
E.W. Schafer, L. L. Marking
Variation in response of channel catfish to Henneguya sp. infections (Protozoa: Myxosporidea)
Abstract has not been submitted
Authors
J. P. McCraren, M.L. Landolt, G. L. Hoffman, F. P. Meyer
Residue dynamics of quinaldine and TFM in rainbow trout
Study of the residue dynamics of 2-methylquinoline (quinaldine) and 3-trifluoromethyl-4-nitrophenol (TFM) in rainbow trout yielded the following findings:1. Uptake and distribution of TFM by trout was influenced by the biotransformation of the lipidsoluble free phenol. No such effect was observed with quinaldine.2. Disappearance of quinaldine and TFM from gallbladder bile was slower than from plas
Authors
J. B. Hunn, J. L. Allen
Renal excretion in coho salmon (Oncorhynchus kisutch) after acute exposure to 3-trifluoromethyl-4-nitrophenol
COHO SALMON (ONCORHYNCHUS KISUTCH) EXPOSED TO AN ACUTE, SUBLETHAL CONCENTRATION OF 3-TRIFLUOROMETHLY 1-4 NITROPHENOL (TFM) EXHIBITED AN INCREASED OUTPUT OF URINE WHEN COMPARED WITH CONTROLS, BUT THE URINARY EXCRETION OF NA, K, CA, MG AND C1 WAS NOT AFFECTED. ABOUT 35 TIMES MORE CONJUGATED TFM THAN FREE TFM WAS EXCRETED DURING THE 24-HOUR STUDY PERIOD.
Authors
J. B. Hunn, J. L. Allen