Book Chapters
Science Quality and Integrity
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse more than 5,500 book chapters authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.
Filter Total Items: 6063
Management of powerline rights-of-way for botanical and wildlife value in metropolitan areas
No abstract available.
Authors
H.H. Obrecht, W. J. Fleming, J.H. Parsons
Mesozoic and Cenozoic tectonic evolution of the northeastern Great Basin
No abstract available
Authors
D. M. Miller
Organochlorines accumulate in heron and egret chicks sampled in the Houston Ship Channel
The National Contaminant Monitoring Program (NCBP) is an effort of the U.S. Fish and Wildlife Service to measure concentrations of DDT and other persistent chemicals in the environment and to quantify changes in these levels. The NCBP has established a network of sampling stations in segments of the environment for which Federal agencies have authority. The wildlife component of this program, ad
Authors
T. W. Custer
Past and potential contributions of captive breeding to population recovery of the Whooping Crane
A captive Whooping Crane colony was established at the Patuxent Wildlifa Research Center in Maryland in 1966. This colony first produced eggs in 1975 and has produced 252 eggs through 1990. From 1976 to 1984, 73 eggs were sent Io Grays Lake, Idaho, the site of the first Whooplng Crane reintroduction attempt. Canada also provided 216 eggs (1976-1988) from the wild population. Although 84 chicks fle
Authors
D. H. Ellis, G.F. Gee, D.G. Smith
Preliminary assessment of the effects of selenium in agricultural drainage on fish in the San Joaquin Valley
Concentrations of total selenium were measured in whole-body samples of seven fishes from the Sacramento and San Joaquin River systems and the San Francisco Bay complex. Concentrations of selenium (up to 11 µg/g dry weight in whole-body composite samples) were highest in fish from canals and sloughs in the Grassland Water District (Grasslands) that received large inflows of subsurface agricultural
Authors
M. K. Saiki, M.R. Jennings, S. J. Hamilton
Process variation across a barred, tidal nearshore
No abstract available.
Authors
J.R. Allen, B.O. Bauer, N.P. Psuty, R.W.G. Carter
Response of sago pondweed, a submerged aquatic macrophyte, to herbicides in three laboratory culture systems
The phytotoxicity of atrazine, paraquat, glyphosate, and alachlor to sago pondweed (Potamogeton pectinatus), a submerged aquatic macrophyte, was tested under three types of laboratory culture conditions. In each case, tests were conducted in static systems, the test period was four weeks, and herbicide exposure was chronic, resulting from a single addition of herbicide to the test vessels at the b
Authors
W. J. Fleming, M.S. Ailstock, J.J. Momot, C.M. Norman
Responses of North American duck populations to exploitation
No abstract available.
Authors
J. D. Nichols