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2009 | Publisher: USGS | Format: URL
pubs.usgs.gov — Beulah Reservoir on the north fork of the Malheur River in northeastern Oregon provides irrigation water to nearby farms and ranches and supports an adfluvial population of bull trout (Salvelinus confluentus), which are listed as threatened under the Endangered Species Act. Water management in Beulah Reservoir results in seasonal and annual More...
2005 | Publisher: USGS | Format: URL
biology.usgs.gov — Laysan ducks are among the last native waterfowl species of Hawaii. Conservation strategies based solely on protecting Laysan Island are risky as natural events such as hurricanes and droughts may eliminate the species. In this fact sheet, learn why and how USGS and USFWS translocated endangered Laysan ducks (Anas laysanensis) from Laysan Island 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...
Publisher: USGS | Science Center: Pacific Island Ecosystems Research Center (PIERC, Honolulu) | Format: URL
biology.usgs.gov — Preliminary field data of 1998 and 1999 about the ecology of the endangered Laysan duck (Anas laysanensis). The data about foraging habits, habitat characteristics, and population status was gathered to support translocation recovery efforts in Hawaii.
U.S. Department of the Interior |
U.S. Geological Survey