Patuxent Wildlife Research Center Database Search:
"Species Decline: Contaminants as a Contributing Factor"
Reptiles and Amphibians--Advanced Search

Patuxent Home
Go to Search Form

The Fish and Wildlife Service has listed members of more than 1,200 taxa as Threatened or Endangered, and has identified about 4,000 additional organisms which may require listing or further study. The most critical step of this process is the identification of the limiting factors contributing to the decline of the species. This, in turn, yields a list of management actions, information needs, and research needs necessary to recognize and ameliorate the limiting factors precipitating the decline. A searchable database has been iteratively designed to summarize nomenclature, phylogeny, geographic location, life history, population size and status, stressors and sources of stressors (with special emphasis on contaminants and pollution) presumed to have caused the decline, proposed recovery tasks, and research needs. You can find more background information by accessing the key and documentation about the fields in this database.

Enter text you would like to search for in any combination in the following fields. For example, to search for turtles, specify "turtle" or "Turtle" in the Common Name box and then press the Search button at the bottom of the page. This would find the common names that include the word "turtle". And/or you could provide a genus and species name to narrow down your search. You can also enter parts of words, such as rubri for the species--this is the first part of the species name rubriventris. Complete your selections from the fields below and then press search. This search will provide output that meets all of the criteria you have specified. If you have specifed too many criteria, you may not see any output that meets your request.

Common Name:    Genus:  

Species: Subspecies:

Class: Order: Family:
Listing Status:

State/Territory Species Occurs In: Please specify full name of state/territory as in Florida, Puerto Rico, etc.

Endangered Species Bulletin Taxonomic Categories:

The Nature Conservancy Taxonomic Categories:

Reliabililty of Population Estimate Parameters:
1 = Supported by peer-reviewed and documented literature 2 = Supported by reports and/or verifiable counts 3 = Supported by expert opinion 4 = Speculative, unsubtantiated estimate

Captive Population?:

The Nature Conservancy Conservation Status:
X = Presumed Extinct - not located despite intensive searches H = Possibly Extinct - of historical occurrence; still some hope of rediscovery 1 = Critically Imperiled - typically 5 or fewer occurrences or 1,000 or fewer individuals 2 = Imperiled - typically 6-20 occurrences or 1,000-3,000 individuals 3 = Vulnerable - rare; typically 21-100 occurrences or 3,000-10,000 individuals 4 = Apparently Secure - uncommon but not rare; some cause for long-term concern; usually more than 100 occurrences and 10,000 individuals 5 = Secure - common; widespread and abundant

Cause of Decline: (Such as Deforestation, Habitat alterations, Pigs, etc.)

Reliabililty of Data Used to Attribute Cause of Decline: 1 = Supported by peer-reviewed literature 2 = Supported by published data/documentation 3 = Supported by expert opinion 4 = Speculative, unsubtantiated

Source of Stressors:
Primary sources associated with land or waterway use for agricultural, industrial, livestock, municipal, and silvicultural activities:

AND Other Primary sources:

AND Secondary sources associated with land or waterway use for agricultural, industrial, livestock, municipal, and silvicultural activities:

Listing of Stressors:
Stressors (Aquatic habitat stressors):

AND Stressors (Contaminants):

AND Stressors (Other Habitat Stressors):

AND Stressors (Other Organism Stressors):
Recovery Implementation Task: Derived from table in each recovery plan; use phrases (or parts of phrases) such as Monitor population, Determine population status, Protect/Manage habitat

Research Needs: Recovery implementation subtasks which have a research component; use phrases (or parts of phrases) such as: Determine status, Identify mortality factors, parameters, habitat, density

Research Needs: (Research needs 1 to n implementation plan priority)

Go to Top of Search Form

USGS Database Disclaimer
Patuxent Home