Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16758
Gray catbird Dumetella carolinensis Gray catbird Dumetella carolinensis
No abstract available.
Authors
C.S. Robbins
An assessment of trail conditions in Great Smoky Mountains National Park: National Park Service-Southeast Region, final research report An assessment of trail conditions in Great Smoky Mountains National Park: National Park Service-Southeast Region, final research report
No abstract available.
Authors
J. L. Marion
Regular and homeward travel speeds of arctic wolves Regular and homeward travel speeds of arctic wolves
Single wolves (Canis lupus arctos), a pair, and a pack of five habituated to the investigator on an all-terrain vehicle were followed on Ellesmere Island, Northwest Territories, Canada, during summer. Their mean travel speed was measured on barren ground at 8.7 km/h during regular travel and 10.0 km/h when returning to a den.
Authors
L.D. Mech
Leg bands cause injuries to parakeets and parrots Leg bands cause injuries to parakeets and parrots
No abstract available.
Authors
J.M. Meyers
Lyme disease and conservation Lyme disease and conservation
Lyme disease is a tick-borne illness that is widespread in North America, especially in the northeastern and northcentral United States. This disease could negatively influence efforts to conserve natural populations in two ways: (1) the disease could directly affect wild animal health; and (2) tick control efforts could adversely affect natural populations and communities. Lyme disease...
Authors
H. Ginsberg
Geohydrology of, and nitrogen and chloride in, the glacial aquifer, Milford-Matamoras area, Pike County, Pennsylvania Geohydrology of, and nitrogen and chloride in, the glacial aquifer, Milford-Matamoras area, Pike County, Pennsylvania
The glacial aquifer that underlies the Routes 209 and 6 corridor between Milford and Matamoras, Pa., is one of the most productive in Pike County. The aquifer is comprised of unconsolidated glacial outwash and kame-terrace deposits that lie within a glacially carved valley now occupied by the Delaware River. Most businesses and residences along this narrow, 7-mile-long corridor rely on...
Authors
L.A. Senior
Opercular membranes and skin Opercular membranes and skin
No abstract available at this time
Authors
S. D. McCormick
History of early diet development in fish culture, 1000 B.C. to A.D. 1955 History of early diet development in fish culture, 1000 B.C. to A.D. 1955
This paper traces the observations and speculations of early fish culturists as they sought to define the feeds necessary to keep hatchery fish alive. Although prescientific ideas about feeding fish existed in Egypt and China over three millennia ago, it was not until the 1700s that scientific studies of feeding and digestion by fish were documented. Aside from several books that...
Authors
G. L. Rumsey
A summary of pesticides in ground-water data collected by government agencies in Indiana, December 1985 to April 1991 A summary of pesticides in ground-water data collected by government agencies in Indiana, December 1985 to April 1991
The U.S. Geological Survey, in cooperation with the Indiana Department of Environmental Management, computerized the available government agency data on the occurrence of pesticides and pesticide metabolites in Indiana ground water. Results of analyses of 725 samples were summarized for the period December 1985 through April 1991. The data had been collected during 6 statewide surveys...
Authors
M.R. Risch
Toxicity and oxidative stress of different forms of organic selenium (Se) and dietary protein in mallard (Anas platyrhynchos) ducklings Toxicity and oxidative stress of different forms of organic selenium (Se) and dietary protein in mallard (Anas platyrhynchos) ducklings
High concentrations of Se have been found in aquatic food chains associated with irrigation drainwater and toxicity to fish and wildlife. Earlier studies have compared toxicities of Se as selenite and as seleno-DL-methionine (DL) in mallards. This study compares DL, seleno-L-methionine (L), selenized yeast (Y) and selenized wheat (W). Day-old mallard ducklings received an untreated diet
Authors
D. Hoffman, G. Heinz, J. Eisemann, G. Pendleton