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: 6173
Approaches, field considerations and problems associated with radio tracking carnivores Approaches, field considerations and problems associated with radio tracking carnivores
The adaptation of radio tracking to ecological studies was a major technological advance affecting field investigations of animal movements and behavior. Carnivores have been the recipients of much attention with this new technology and study approaches have varied from simple to complex. Equipment performance has much improved over the years, but users still face many difficulties. The...
Authors
A.B. Sargeant
Archiving wildlife specimens for future analysis Archiving wildlife specimens for future analysis
No abstract available.
Authors
H. M. Ohlendorf
Artificial insemination of cranes with frozen semen Artificial insemination of cranes with frozen semen
For the first time (1978) artificial insemination (AI) with frozen greater sandhill crane (Grus canadensis tabida) semen resulted in fertile eggs and chicks. During the 2 year (1977-78) study, 6 of 27 eggs produced were fertile. Three chicks hatched. Semen samples used for insemination were frozen and stored in liquid nitrogen for two months or less. Recent improvements in the laboratory...
Authors
G.F. Gee, Thomas J. Sexton
Assessment and population management of North American migratory birds Assessment and population management of North American migratory birds
No abstract available.
Authors
F.W. Martin, R.S. Pospahala, J.D. Nichols
Assessment of fire damage within Seney Wildlife Refuge from aerial photography and LANDSAT imagery Assessment of fire damage within Seney Wildlife Refuge from aerial photography and LANDSAT imagery
No abstract available.
Authors
H.M. Lachowski, S.H. Anderson
Banding as a tool in bird studies Banding as a tool in bird studies
No abstract available.
Authors
G.M. Jonkel
Biotransformation of selected chemicals by fish Biotransformation of selected chemicals by fish
Abstract not submitted to date
Authors
J. L. Allen, V. K. Dawson, J. B. Hunn
Bird communities associated with succession and management of lowland conifer forests Bird communities associated with succession and management of lowland conifer forests
Data from published bird censuses were used to determine changes in avian communities in relation to plant succession, fire, type conversion, and timber management practices in lowland conifer forests in the northeastern United States. With modifications in current logging practices, habitat for the bird species that nest in undisturbed stands can be provided. Management guidelines are
Authors
D.K. Dawson
Brain cholinesterase activities of passerine birds in forests sprayed with cholinesterase inhibiting insecticides Brain cholinesterase activities of passerine birds in forests sprayed with cholinesterase inhibiting insecticides
Brain cholinesterase activities were determined in passerines collected from northwestern forests that had been sprayed with trichlorfon, acephate, and carbaryl at 0.56, 1.13 and 2.26 kg/ha. Trichlorfon and carbaryl inhibited cholinesterase activity slightly in only a few birds, primarily canopy dwellers. In contrast, acephate caused marked inhibition of cholinesterase activity in nearly...
Authors
J.G. Zinkl, Charles J. Henny, P.J. Shea