Integrated fire science in the Rocky Mountains
Natasha B. Kotliar
2005, Fact Sheet 2005-3032
Fire is an important ecological process that has helped shape western landscapes. Wildfire suppression and other management practices may have altered historic fire regimes in ecosystems adapted to frequent, low-severity fires. Compounding this problem is the encroachment of homes into fire-prone areas. Fire affects a number of abiotic and biotic components...
Rocky Mountain Center for Conservation Genetics and Systematics
S.J. Oyler-McCance, T.W. Quinn
2005, Fact Sheet 2005-3138
The use of molecular genetic tools has become increasingly important in addressing conservation issues pertaining to plants and animals. Genetic information can be used to augment studies of population dynamics and population viability, investigate systematic, refine taxonomic definitions, investigate population structure and gene flow, and document genetic diversity in a...
Biological science in the Great Basin
Water Resources Division, U.S. Geological Survey
2005, Fact Sheet 2005-3004
The Great Basin is an expanse of desert and high moun-tains situated between the Rocky Mountains and the Sierra Nevada of the western United States. The most explicit description of the Great Basin is that area in the West where surface waters drain inland. In other words, the Great Basin...
Taking the pulse of Colorado's Front Range: Developing regional indicators of environmental and quality of life condition
Jill S. Baron
2005, Fact Sheet 2005-3021
Indicators are routinely used to report the status and trends of human health, economy, educational achievement, and quality of life. Some environmental indicators, such as for water and air quality, are routinely reported and used to inform personal, management, or policy decisions. Other environmental indicators, particularly those that do not...
Biological research on fire in the West
Water Resources Division, U.S. Geological Survey
2005, Fact Sheet 2005-3005
Wildland fires are a natural feature of many ecosystems, including grasslands, forests, and shrublands. How-ever, years of fire exclusion have led to accumulations of dead fuels and increases in the density of fire-intolerant species. In most western states, recent fires burning in these altered ecosystems have caused significant damage and...
Brown treesnake (Boiga irregularis) fact sheet for Pacific Island residents and travelers
Thomas H. Fritts, D.L. Tanner, James Stanford, Teri Kman
2005, Fact Sheet 2005-3109
The brown treesnake is an introduced species on Guam that has become a serious pest. The snakes probably arrived on Guam hidden in ship cargo from the New Guinea area, about 1100 miles to the south. The first sightings were inland from the seaport in the early 1950s. Snakes became...
Hydrogeology and simulation of ground-water flow in a glacial-aquifer system at Cortland County, New York
Todd A. Miller
2004, Fact Sheet 054-03
No abstract available....
The U.S. Geological Survey New England Disciplines Management Council (NEDMAC)
Ellen Mecray, Susan Russell-Robinson
2004, Fact Sheet 2004-3101
Welcome to the Visitors Center
Water Resources Division, U.S. Geological Survey
2004, Fact Sheet 2004-3005
The USGS Learning Program is designed to acquaint visitors with the USGS and its multi-faceted activities and responsibilities. Visitors to the Learning Center will be actively engaged in learning about natural science through guided tours, hands-on experiences, and a fascinating array of natural science products....
Nutrient controls on biocomplexity of mangrove ecosystems
Karen L. McKee
2004, Fact Sheet 2004-3124
Mangrove forests are important coastal ecosystems that provide a variety of ecological and societal services. These intertidal, tree-dominated communities along tropical coastlines are often described as “simple systems,” compared to other tropical forests with larger numbers of plant species and multiple understory strata; however, mangrove ecosystems have complex trophic structures,...
Map margin information
Water Resources Division, U.S. Geological Survey
2004, Fact Sheet 116265
Ever wonder what all those little numbers are on the borders of your map? Here are the facts......
Factors affecting ground-water quality in Oakland County, Michigan
Water Resources Division, U.S. Geological Survey
2004, Fact Sheet 2004-3102
Ground water is water stored in pores within soil and rock beneath the land surface. When these pores are connected so that water can be transmitted to wells or springs, these bodies of soil and rock are termed aquifers, from two Greek words meaning “water” and “to bear.” ...
StreamStats: A U.S. Geological Survey Web Application for Stream Information
Kernell G. Ries III, Peter A. Steeves, Jacqueline D. Coles, Alan H. Rea, David W. Stewart
2004, Fact Sheet 2004-3115
Michigan lakes: An assessment of water quality
R. J. Minnerick
2004, Fact Sheet 2004-3048
Michigan has more than 11,000 inland lakes, that provide countless recreational opportunities and are an important resource that makes tourism and recreation a $15-billion-dollar per-year industry in the State (Stynes, 2002). Knowledge of the water-quality characteristics of inland lakes is essential for the current and future management of these resources.Historically...
Science support for salt pond restoration and management in south San Francisco Bay
Kathleen M. Swanson, Gregory Shellenbarger, Kathleen D. Henderson, Jeanne S. DiLeo, David H. Schoellhamer
2004, Fact Sheet 2004-3135
Endangered fish threatened by Asian fish tapeworm
Rebecca A. Cole
2004, Fact Sheet 2005-3057
The Asian fish tapeworm, an exotic parasite, has invaded the endangered humpback chub (Gila cypha) population from the Colorado and Little Colorado Rivers in Grand Canyon, Arizona. This parasite causes disease and death in carp in aquaculture settings and may retard growth in hatchery-reared roundtail chub (Gila robusta). Other consequences...
The Enterprise Web
Water Resources Division, U.S. Geological Survey
2004, Fact Sheet 123-03
The Enterprise Web is a bureau wide approach to managing U.S. Geological Survey (USGS) information on the Web. Under the direction of the USGS Geographic Information Office, the Enterprise Web operates the Bureau's Web servers and their associated sites. Through a network of people and resources, the Enterprise Web or "E-Web" works with programs and...
The U.S. Geological Survey Library
Water Resources Division, U.S. Geological Survey
2004, Fact Sheet 125-03
Established in 1879, to build and organize a collection of scientific materials in the earth sciences, the U.S. Geological Survey (USGS) Library is the largest earth sciences collection in the world. The USGS Library System is managed by the Geographic Information Office (GIO), Information Policy and Services Office, and includes four libraries in Reston, Va.,...
Arsenic, nitrate, and chloride in groundwater, Oakland County, Michigan
Stephen S. Aichele
2004, Fact Sheet 2004-3120
In 1996, the U.S. Geological Survey (USGS), in cooperation with the Michigan Department of Environmental Quality (MDEQ) and nine southeast Michigan counties, began a study of the factors controlling arsenic concentrations in drinking water. The early results of this study raised broader concerns in Oakland County about the quality of...
Servicio de Mapas en Internet para la Salud Ambiental en la Region Fronteriza Entre los Estados Unidos y Mexico
Denny Buckler, Jim Stefanov
2004, Fact Sheet 2004-3140
La region fronteriza de los Estados Unidos y Mexico abarca una gran diversidad de ambientes fisicos y habitaciones, entre los cuales estan los humedales, desiertos, pastos, montanas, y bosques. Estos a su vez son unicos en cuanto a su diversidad de recursos acuaticos minerales, y biologicos. La region se interconecta...
Internet Map Service for Environmental Health in the U.S.-Mexico Border Region
Denny Buckler, Jim Stefanov
2004, Fact Sheet 2004-3140
The objective of this project is to provide an earth and biological resources database within a geographic framework using an Internet Map Service (IMS) to further our understanding of the linkages between the condition of the physical environment and public health issues. The IMS is now available on the Internet...
Lake Worth bottom sediments : A chronicle of water-quality changes in western Fort Worth, Texas, 1914-2001
Christopher L. Braun, Glenn R. Harwell
2004, Fact Sheet 2004-3077
In spring 2000, the Texas Department of Health issued a fish-consumption advisory for Lake Worth, Tex., because of elevated concentrations of polychlorinated biphenyls (PCBs) in fish (Texas Department of Health, 2000). In response to the advisory and in cooperation with the U.S. Air Force, the U.S. Geological Survey (USGS) collected...
Summary of hydrogeology and simulation of ground-water flow and land-surface subsidence in the northern part of the Gulf Coast aquifer system, Texas
Mark C. Kasmarek, James L. Robinson
2004, Fact Sheet 2004-3076
The northern part of the Gulf Coast aquifer system in Texas, which includes the Chicot, Evangeline, and Jasper aquifers, supplies most of the water used for industrial, municipal, agricultural, and commercial purposes for an approximately 25,000- square-mile (mi2) area that includes the Beaumont and Houston metropolitan areas. The area has...
Streamflow losses through karst features in the upper Peace River hydrologic area, Polk County, Florida, May 2002 to May 2003
Lari A. Knochenmus
2004, Fact Sheet 102-03
Oil and gas assessment of Yukon Flats, East-Central Alaska, 2004
Richard G. Stanley, Thomas S. Ahlbrandt, Ronald R. Charpentier, Troy A. Cook, Jesse M. Crews, Timothy R. Klett, Paul G. Lillis, Robert L. Morin, Jeffrey D. Phillips, Richard M. Pollastro, Elisabeth L. Rowan, Richard W. Saltus, Christopher J. Schenk, Megan K. Simpson, Alison B. Till, Sandra M. Troutman, James W. Hendley II
2004, Fact Sheet 2004-3121
