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2005 | Publisher: USGS | Science Center: Fort Collins Science Center (FORT, Ft. Collins) | Format: URL
www.fort.usgs.gov — This research report describes the Vegetation changes of over 12 years in ungrazed and grazed Conservation Reserve Program grasslands in the Central and Southern Plains. The Conservation Reserve Program (CRP) established under the 1985 Food Security Act has the fundamental objectives of jointly providing economic support to segments of the More...
Publisher: USGS | Science Center: Fort Collins Science Center (FORT, Ft. Collins) | Format: URL
www.fort.usgs.gov — This web resource is a compilation of research projects related to Energy, Land Use, and Sagebrush Ecosystems. Investigators at the USGS Science Centers (FORT and FRESC), and Central Regional Office have brought biological and ecosystem research and mapping expertise to a partnership with the Bureau of Land Management, Wyoming Game and Fish More...
May 21 2009 | Publisher: USGS | Format: URL
pubs.usgs.gov — A new tool provides land managers with a predictive model for mapping the potential distribution of desert tortoise habitat and to evaluate different land-use issues the tortoises face at a landscape scale. The model incorporates an extensive amount of field data for desert tortoises, as well as environmental data related to landscape attributes, More...
July 2007 | Publisher: Other (Ecological Society of America (ESA) Journal) | Format: URL
www.esajournals.org — Periodic wildfire maintains the integrity and species composition of many ecosystems, including the Mediterranean-climate shrublands of California. However, human activities alter natural fire regimes, which can lead to cascading ecological effects. Increased human ignitions at the wildland-urban interface (WUI) have recently gained attention, but More...
2007 | Publisher: USGS | Science Center: Fort Collins Science Center (FORT, Ft. Collins) | Format: URL
www.fort.usgs.gov — This study was commissioned by the Northeast Region of the U.S. Fish and Wildlife Service (USFWS) in support of the Comprehensive Conservation Planning at Prime Hook National Wildlife Refuge (Prime Hook NWR or Refuge). The National Wildlife Refuge Improvement Act of 1997 (Public Law 105-57, USC668dd) mandates a Comprehensive Conservation Plan More...
February 2006 | Publisher: USGS | Science Center: Pacific Island Ecosystems Research Center (PIERC, Honolulu) | Format: .PDF
biology.usgs.gov — A success story of how Kanaha Beach Park once degraded with overuse, invasive species, vehicle traffic, and litter was restored into a cleaner and safer place for people and native wildlife.
Publisher: USGS | Format: URL
chesapeake.usgs.gov — USGS Chesapeake Bay Activities provides information on the science activities and research by the U.S. Geological Survey to provide integrated science to support effective ecosystem conservation and restoration in the Chesapeake Bay watershed. This website links to features and publications to provide an understanding and management of the Bay More...
Publisher: USGS | Science Center: Leetown Science Center (LSC, Kearneysville) | Format: URL
www.lsc.usgs.gov — This database is the result of a national analysis of land cover pattern. A series of derived maps (different indices, different window sizes) is available. They are proposed for consideration by landscape analysts, as independent variables (e.g., covariates, stratification rules), and as "context" information for finer-scale investigations, for More...
Publisher: USGS | Format: URL
geochange.er.usgs.gov — Cryptobiotic soil crusts, consisting of soil cyanobacteria, lichens and mosses, play an important ecological roles in the arid Southwest. Cryptobiotic crusts increase the stability of otherwise easily eroded soils, increase water infiltration in regions that receive little precipitation, and increase fertility in soils often limited in essential More...
Publisher: USGS | Format: URL
burnseverity.cr.usgs.gov — This project addresses the need to quantify fire effects over large, often-remote regions and long time intervals, reflecting collaborative efforts to bring previous research into operational implementation for fire managers and scientists. The project focuses on National Park Service Units and adjoining lands throughout the U.S., combining More...
Publisher: USGS | Science Center: Upper Midwest Environmental Sciences Center (UMESC, LaCrosse) | Format: URL
www.umesc.usgs.gov — This resource is a species profile and issue overview of the reed canary grass (Phalaris arundinacea). It discusses its increasingly dominating behavior in wet meadows in the Upper Midwest. Reed canary grass is highly tolerant to flooding, resistant to burning, and quickly forms virtual monocultures by shading native grasses and forbs with its More...
Publisher: USGS | Science Center: Western Ecological Research Center (WERC, Sacramento) | Format: URL
www.werc.usgs.gov — Once an abundant frog throughout much of central and southern California, the California red-legged frog (Rana draytonii) is now rare in the Sierra Nevada foothills and the southern portion of its range. In parts of the central Coast Range, however, large, vigorous populations do remain. Most protection efforts for this threatened species have More...
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U.S. Geological Survey