Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16743
[Book review] A review of Wildlife 2001: Populations [Book review] A review of Wildlife 2001: Populations
No abstract available.
Authors
H.B. Underwood
Strontium Strontium
Part of the Annual Commodities Review 1995. In 1995, U.S. strontium imports and consumption increased nearly 30 percent due to increased domestic production of color television picture tube glass. However, strontium compound exports fell during 1995. Strontium is also used in the production of permanent ceramic ferrite magnets. Strontium nitrate, strontium chromate, and strontium...
Authors
J.A. Ober
Wolf pack witness Wolf pack witness
Arctic wolves have almost never come in contact with humans because of their location in the extreme northern latitudes. Their lack of experience with human intruders makes them an easy species to study.
Authors
L.D. Mech
Malocclusion in the jaws of captive bred Arctic wolves Malocclusion in the jaws of captive bred Arctic wolves
Similar abnormalities in the skulls of captive Arctic Wolves (Canis lupus arctos) and a wild Arctic wolf found dead on Ellesmere Island, Canada, in 1986 are described. The malocclusion is likely to be recessively inherited and would be expressed more frequently in association with increased levels of inbreeding. A re-shaping of the skulls may have occurred due to the effects of the...
Authors
N.E. Federoff
Measuring and monitoring biological diversity: Standard methods for mammals Measuring and monitoring biological diversity: Standard methods for mammals
Measuring and Monitoring Biological Diversity: Standard Methods for Mammals provides a comprehensive manual for designing and implementing inventories of mammalian biodiversity anywhere in the world and for any group, from rodents to open-country grazers. The book emphasizes formal estimation approaches, which supply data that can be compared across habitats and over time. Beginning with...
U. S. Geological Survey programs in Pennsylvania U. S. Geological Survey programs in Pennsylvania
The U.S. Geological Survey (USGS) is involved in mapping and studying land, mineral, biological, and water resources and determining the risk from earthquakes and other natural hazards, which are of importance to the citizens of Pennsylvania. This Fact Sheet describes how the USGS is addressing some of the major environmental issues in Pennsylvania, which include availability of mineral...
Authors
Water Resources Division U.S. Geological Survey
Chestnut-sided warbler, Dendroica pensylvanica Chestnut-sided warbler, Dendroica pensylvanica
No abstract available.
Authors
C.S. Robbins
Brown creeper, Certhia americana Brown creeper, Certhia americana
No abstract available.
Authors
C.S. Robbins
Ground-water quality and its relation to hydrogeology, land use, and surface-water quality in the Red Clay Creek basin, Piedmont Physiographic Province, Pennsylvania and Delaware Ground-water quality and its relation to hydrogeology, land use, and surface-water quality in the Red Clay Creek basin, Piedmont Physiographic Province, Pennsylvania and Delaware
The Red Clay Creek Basin in the Piedmont Physiographic Province of Pennsylvania and Delaware is a 54-square-mile area underlain by a structurally complex assemblage of fractured metamorphosed sedimentary and igneous rocks that form a water-table aquifer. Ground-water-flow systems generally are local, and ground water discharges to streams. Both ground water and surface water in the basin...
Authors
Lisa A. Senior