by Brian Czech, and Paul R. Krausman Distribution and Causation of Species Endangerment in the United States by Brian Czech, and Paul R. Krausman Science Volume 277(5329):1116-1117 August 22, 1997 Published by AAAS
Figure 1 Funds allocated for the U. S Figure 1 Funds allocated for the U.S. Endangered Species Act (ESA) and number of species listed as endangered. Funds allocated for the U.S. Endangered Species Act (ESA) and number of species listed as endangered. Funds in millions of constant 1976 dollars per fiscal year. Number of species listed as endangered per calendar year are current through 31 October 1996. Source: U.S. Fish and Wildlife Service. Brian Czech, and Paul R. Krausman Science 1997;277:1116-1117 Published by AAAS