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: 41763
Use of fabrics in streams to collect black fly larvae
A technique is described for using strips of gauze to collect large numbers of larvae of Cnephia dacotensis (Dyar & Shannon), Simulium decorum (Walker), S. venustuni Say, S. vcrecundum Stone & Jamnback, and S. vittatum Zetterstedt from various water habitats.
Authors
I.B. Tarshis
The red-whiskered bulbul in Florida
The establishment of a feral population of the Red-whiskered Bulbul (Pycnonotus jocosus) in the environs of Miami, Dade County, Florida, was reported by L. A. Stimson (Florida Naturalist, 35: 93, 1962). Bulbuls were present in Kendall, just south of Miami, in the spring of 1961, and apparently raised young there that summer. In the fall of that year, bulbuls were also seen in the vicinity of Princ
Authors
R.C. Banks, R.C. Laybourne
Pentland's tinamou in Argentina (Aves: Tinamidae)
No abstract available.
Authors
R.C. Banks, W.H. Bohl
Possible differentiation of natal areas of North American waterfowl by neutron activation analysis
The possibility of using neutron activation analyses to differentiate sources of North American waterfowl was investigated by irradiating rectrices and wing bones of birds collected in several localities, and comparing the characteristic gamma-ray spectra. Canada goose rectrices from Oregon specimens could be distinguished from those taken in Wisconsin and Colorado based on higher levels of Mn.
Authors
T. Devine, T.J. Peterle
Wing and body tissue relationships of DDT and metabolite residues in mallard and lesser scaup ducks
No asbtract available.
Authors
D.L. Dindal, T.J. Peterle
Relative toxicity of lead and five proposed substitute shot types to pen-reared mallards
A 30-day toxicity test was made to determine the relative toxicity of lead, a tin-lead alloy, zinc, nickel, teflon-coated steel, and tin, all in shot form, to pen-reared mallard drakes. All of the 15 ducks dosed with lead died. Twenty-seven percent of 15 dosed with alloy, and 20 percent of 15 dosed with zinc also died. Ten of the remaining zinc-dosed ducks showed signs of distress, including losse
Authors
John W. Grandy, Louis N. Locke, George E. Bagley
Chlorinated hydrocarbons and eggshell changes in raptorial and fish-eating birds
Catastrophic declines of three raptorial species in the United States have been accompanied by decreases in eggshell thickness that began in 1947, have amounted to 19 percent or more, and were identical to phenomena reported in Britain. In 1967, shell thickness in herring gull eggs from five states decreased with increases in chlorinated hydrocarbon residues.
Authors
J.J. Hickey, D. W. Anderson