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Accession Number 5001894

Title Species decline: contaminants and other contributing factors

Project Description Members of over 1,200 taxa have been listed as Threatened or Endangered, and over 4,000

additional organisms have been identified for listing as Candidate Species or Species of Concern.

Both naturally-occurring and human activities (e.g., environmental contaminants and pollution)

have been shown to be a major factor in the decline of many species. The purpose of this project

is to develop a database that lists and ranks the presumed causes of these declines, with special

emphasis on contaminants and pollutant-related situations. This will be accomplished by

reviewing the U. S. Fish and Wildlife Services approved recovery plans for the reasons which lead

to listing and for the information and management actions needed to bring about recovery. These

factors will be itemized, cross-referenced, enumerated, and categorically ranked (e.g.,

phylogenetic, anthropogenic, habitat, contaminant). Particular attention will be given to factors

which impact numerous species or are particularly detrimental to specific taxonomic groups.

Listing packages will serve as a secondary source of information.

Keywords candidate species, contaminants, contributing factors, limiting factors, listing package, pollution,

recovery plan, risk assessment, section 7 consultation, species of concern, synoptic review,

Principal Oliver H Pattee, USGS Patuxent Wildlife Research Center:; Barnett A

Investigators Rattner, USGS Patuxent Wildlife Research Center:; Ronald Eisler,

USGS Patuxent Wildlife Research Center:;

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