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2009 | Publisher: USGS | Science Center: Fort Collins Science Center (FORT, Ft. Collins) | Format: URL
www.fort.usgs.gov — Riparian vegetation composition, structure and abundance are governed to a large degree by river flow regime and flow-mediated fluvial processes. Streamflow regime exerts selective pressures on riparian vegetation, resulting in adaptations (trait syndromes) to specific flow attributes. Widespread modification of flow regimes by humans has resulted More...
November 2008 | Publisher: USGS | Science Center: Western Ecological Research Center (WERC, Sacramento) | Format: URL
www.werc.usgs.gov — Species distribution models are widely used, at multiple scales, to predict the geographical distribution of habitat suitability or species occurrence. Several studies have found that more accurate predictive models of species occurrences can be developed for rarer species. One recent study, however, found the relationship between range size and More...
2008 | Publisher: Other Federal Agency (United States Fish and Wildlife Service (USFWS)) | Format: .PDF
www.fws.gov — This report is the result of a cooperative effort between the National Oceanic and Atmospheric Administration's (NOAA) and the U.S. Fish and Wildlife Service (FWS). The efforts to monitor coastal wetland status and trends described in this report have been enhanced by the multi-agency involvement in the study's design, data collection, More...
Publisher: USGS | Science Center: National Wetlands Research Center (NWRC, Lafayette) | Format: URL
www.nwrc.usgs.gov — This report is a comprehensive summary of the status and trends of our nation's biological resources. The report describes the major processes and factors affecting biological resources, and it treats regional status and trends. Authors of the chapters and boxes in this two-volume report were drawn from federal and state agencies, universities, More...
U.S. Department of the Interior |
U.S. Geological Survey