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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: 6152
Aims and methods of waterfowl research in North America Aims and methods of waterfowl research in North America
No abstract available.
Authors
W.F. Crissey
Biostratigraphy and dolomite porosity trends of the Lisburne Group Biostratigraphy and dolomite porosity trends of the Lisburne Group
This preliminary study is based on measured and carefully collected sections of the Lisburne Group (fig. 1, sees. 1-29). The outcrops extend from Cape Lisburne (sec. 1) in the west to Egaksrak River (sec. 29) in northeastern Alaska and are used as the basic building blocks for the carbonate facies maps and the cross section. Lithologic and foraminifera samples were collected at 10-foot...
Authors
Augustus K. Armstrong, Bernard L. Mamet
Breeding ground survey methods in North America Breeding ground survey methods in North America
No abstract available.
Authors
W.F. Crissey
Changing abundance of migratory birds in North America Changing abundance of migratory birds in North America
No abstract available.
Authors
J.W. Aldrich, C.S. Robbins
Distribution of DDT residues in tissues of birds in relation to mortality, body condition, and time Distribution of DDT residues in tissues of birds in relation to mortality, body condition, and time
No abstract available.
Authors
L.F. Stickel, W. H. Stickel
Extreme female predominance in the bloater (Coregonus hoyi) of Lake Michigan in the 1960's Extreme female predominance in the bloater (Coregonus hoyi) of Lake Michigan in the 1960's
The sex composition and other biological characteristics of the bloater changed substantially during recent decades of continuous ecological change in Lake Michigan. The percentages of females increased from 72% of the bloaters samples in 1928-32 to 95% in 1963, and ranged from 94 to 97% in 1964-69. The unusual predominance of females was established at an early age, unquestionably...
Authors
Edward H. Brown
Fishes in pest situations: Principles of plant and animal pest control Fishes in pest situations: Principles of plant and animal pest control
Abstract not submitted to date
Authors
R. E. Lennon
Induction of liver microsomal activities in Japanese quail [with supplemental information on] the induction of microsomal ethylmorphine demethylase activity in sparrow hawk livers by diets containing DDT and dieldrin or DDE Induction of liver microsomal activities in Japanese quail [with supplemental information on] the induction of microsomal ethylmorphine demethylase activity in sparrow hawk livers by diets containing DDT and dieldrin or DDE
No abstract available.
Authors
J.W. Gillett, Richard D. Porter, Stanley N. Wiemeyer, T.H. Gram, D.H. Schroeder, J.R. Gillette
Preliminary comparison of bird species diversity and density in Luquillo and Guanica Forests Preliminary comparison of bird species diversity and density in Luquillo and Guanica Forests
No abstract available.
Authors
C. B. Kepler, A.K. Kepler
Preliminary geologic investigation of the Apollo 12 landing site: Part A: Geology of the Apollo 12 Landing Site Preliminary geologic investigation of the Apollo 12 landing site: Part A: Geology of the Apollo 12 Landing Site
This report provides a preliminary description of the geologic setting of the lunar samples returned fromt he Apollo 12 mission. A more complete interpretation of the geology of the site will be prepared after thorough analysis of the data.
Authors
E.M. Shoemaker, R. M. Batson, A.L. Bean, C. Conrad, D.H. Dahlem, E. N. Goddard, M. H. Hait, K.B. Larson, G. G. Schaber, D. L. Schleicher, R. L. Sutton, G.A. Swann, A. C. Waters