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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: 6173
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
Preliminary geologic investigation of the Apollo 12 landing site: Part B: photometric and polarimetric properties of the lunar regolith Preliminary geologic investigation of the Apollo 12 landing site: Part B: photometric and polarimetric properties of the lunar regolith
Several special, as well as general, photometric and polarimetric studies of the lunar regolith in the vicinity of the Apollo 12 landing site have been undertaken by means of the black-and-white photographs obtained on the geologic traverse during the second extravehicular activity (EVA) period.
Authors
H. E. Holt, J. J. Rennilson
Progress report on the North American Breeding Bird Survey Progress report on the North American Breeding Bird Survey
No abstract available.
Authors
C.S. Robbins, W.T. Van Velzen