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: 41567
Geographic distribution: Masticophis bilineatus
No abstract available.
Authors
P.A. Medica, B.G. Maza
An unusual breeding aggregation of frogs, with notes on the ecology of Agalychnis spurrelli (Hylidae: Anura)
No abstract available.
Authors
N. J. Scott, A. Starrett
Internal dosimetry in small vertebrates resident in a fallout field
No abstract available.
Authors
R.K. Mullen, P.A. Medica
Sea otters: their role in structuring nearshore communities
No abstract available.
Authors
J. A. Estes, J. F. Palmisano
Geographic distribution: Eumeces gilberti arizonensis
No abstract available.
Authors
P.A. Medica, L.J. Vitt
Gas-liquid chromatographic determination of 3-trifluoromethyl-4-nitrophenol residues in fish
A procedure for the determination of 3-mftuormethyl-4-nitrophenol (TFM) in fish tissues is described. Homogenized tissues are extracted with hexane-ethyl ether; the extract is cleaned up by partitioning the TFM from the extracting solvent into O.IN NaOB, acidifying the aqueous solution, and partitioning again with hexaneethyl ether. The TFM is methylated with diazomethane and analyzed by gas-liqui
Authors
J. L. Allen, J.B. Sills
Removal and deactivation of antimycin using carbon and chlorine
Abstract has not been submitted
Authors
V. K. Dawson
Monitoring 2,4-D residues at Loxahatchee National Wildlife Refuge
Abstract has not been submitted
Authors
D.P. Schultz, E.W. Whitney
Residues of 2,4-D in pond water, mud, and fish, 1971
Abstract has not been submitted
Authors
D.P. Schultz, P.D. Harman
Effects of TFM and Bayer 73 on in vivo oxygen consumption of the aquatic midge Chironomus tentans
Exposure of fourth instar larvae of Chironomus tentans to 2.0-8.0 mg/liter of TFM (3-trifluormethyl-4-nitrophenol) for 6 hr at 22 A? 0.5 C in soft water resulted in a significantly increased rate of larval oxygen consumption compared to that of control larvae, as measured with the Warburg respirometer. Maximum stimulation of oxygen consumption occurred with 8.0 mg/liter of TFM, and 1.0 mg/liter of
Authors
J.A. Kawatski, V. K. Dawson, J.L. Reuvers
A culture method for sea lamprey larvae
Abstract has not been submitted
Authors
L.H. Hanson, E.L. King, J.H. Howell, A. J. Smith