View Single Post
Old December 20, 2012, 06:26 PM   #28
rickyrick
Senior Member
 
Join Date: March 15, 2010
Location: Mesquite Jungle Desert, West Texas, USA
Posts: 2,467
This sourced from: © International Union for Conservation of Nature and Natural Resources.


Quote:
Taxonomy [top]
Kingdom Phylum Class Order Family
ANIMALIA CHORDATA REPTILIA SQUAMATA VIPERIDAE

Scientific Name: Crotalus atrox
Species Authority: Baird & Girard, 1853
Common Name/s:
English – Western Diamond-backed Rattlesnake, Western Diamondback Rattlesnake
Assessment Information [top]
Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2007
Assessor/s: Frost, D.R., Hammerson, G.A. & Santos-Barrera, G.
Reviewer/s: Cox, N., Chanson, J.S. & Stuart, S.N. (Global Reptile Assessment Coordinating Team)
Contributor/s:
Justification:
Listed as Least Concern in view of its wide distribution, presumed large population, and because it is unlikely to be declining fast enough to qualify for listing in a more threatened category.


Population [top]
Population: This species is represented by a large number of occurrences. Campbell and Lamar (2004) mapped hundreds of collection sites. The adult population size is unknown but certainly exceeds 100,000. This is a common snake in much of its range. Its extent of occurrence, area of occupancy, and number of subpopulations are probably relatively stable; population size is probably declining at less than 10% over 10 years or three generations.
Population Trend: Stable
__________________
Navin R. Johnson: "He hates these cans!!!! Stay away from the cans!!!!"
rickyrick is offline  
 
Page generated in 0.04738 seconds with 7 queries