Overview of Vertebrate Animal Data
 
 
  
 
 
 
 
 

Overview of Vertebrate Animal Data

NatureServe Explorer provides comprehensive conservation status, taxonomic, and distribution information for vertebrate animal species native to the United States and Canada in the taxonomic groups shown in the table below (all vertebrates except marine fishes). All of these species have been classified according to major references or recent literature (see Classification of Vertebrates and Invertebrates), and most regularly occurring species have been assigned a global conservation status rank (a number of accidentally occurring birds and undescribed species included have not yet been ranked). National status under the U.S. Endangered Species Act and the Committee on the Status of Endangered Wildlife in Canada are provided where applicable. This information is continually reviewed and updated in NatureServe Central Databases in order to reflect the latest taxonomic treatments, ongoing inventory efforts, and new status assessments. NatureServe Explorer is updated periodically from the NatureServe Central Databases to reflect these changes.

Total Vertebrate Animal Records in NatureServe Explorer
(Native and Exotic)
  Known U.S.
Distribution
Known Canadian Distribution
Total
Species and Subspecies
Species Subspecies Species Subspecies
All Vertebrates3,2861,3011,5223776,275
Mammals*459498208951,086
Birds*857224469731,188
Turtles*60471211116
Crocodilians*30003
Reptiles*3202073333570
Amphibians*312674829412
Fishes1,2752587521362,900
"*" Denotes groups for which native species are comprehensively covered in NatureServe Explorer.
Note: These records include 255 vertebrates known to be exotic in the United States or Canada.

Vertebrate Species by NatureServe Conservation Status
(Native* Only)
 
Potentially Extinct
(GX, GH)
At Risk (G1, G2, G3)
Apparently Secure (G4, G5)
Unrankable (GU)
Not Yet Ranked (GNR)
Mammals38235602
Birds309067103
Turtles0243400
Crocodilians01100
Reptiles04823100
Amphibians112217138
Fishes203676800584
Total547342,1443597
* Includes only described taxa that are native to and regularly occurring in the United States or Canada.

Vertebrate Subspecies
(Native* Only)
Potentially Extinct (TX, TH)
At Risk (T1, T2, T3)
Apparently Secure (T4, T5)
Unrankable (TU)
Not Yet Ranked (TNR)
Mammals30332114394
Birds14135682425
Turtles0133603
Crocodilians00000
Reptiles147144023
Amphibians02742019
Fishes14220284112
Total5977443231276
* Includes only described taxa that are native to and regularly occurring in the United States or Canada.

 

 
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