If the federal government implements a 2007 legal interpretation of the Endangered Species Act, the likely result will be a reduction in the number of species listed for protection, scientists say.
Researchers analyzed potential effects of a legal memorandum issued in March 2007 by the Department of the Interior, which, among other points, advised the U.S. Fish and Wildlife Service that only an endangered species' current range need factor into whether the species is listed for protection.