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Title: Patterns of aquatic species imperilment in the Southern Appalachians: an evaluation of regional databases
Author: Flebbe, Patricia A.; Herrig, James A.
Source: Environmental Management. 25(6): 681-694.
Publication Series: Miscellaneous Publication
Description: For regional analyses of species imperilment patterns, data on species distributions are available from the U.S. Fish and Wildlife Service and from the State heritage programs. The authors compared these two different databases as sources of best available information for regional analyses of patterns of aquatic species imperilment for 132 counties in the Southern Appalachians and examined patterns produced from the databases. The heritage program database contained information about a greater number of imperiled species because species need not be federally listed as threatened or endangered to be included in this database. In the Southern Appalachians, about half of imperiled mollusks and about one-fourth of imperiled fish were listed as threatened or endangered; much smaller proportions of other taxonomic groups were federally listed. Most threatened and endangered species appeared on both lists, but for about 40 percent of the species, inconsistencies exist, notably a lack of recent records in the heritage program dataset. Numbers of species in each county were significantly different between the two datasets for Georgia, Tennessee, and Virginia, where the largest number of threatened and endangered species reside. Nevertheless, some counties always appeared as centers of imperilment, and the general spatial patterns of imperilment were similar.
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Flebbe, Patricia A.; Herrig, James A. 2000. Patterns of aquatic species imperilment in the Southern Appalachians: an evaluation of regional databases. Environmental Management. 25(6): 681-694.
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