Kingdom | Phylum | Class | Order | Family |
---|---|---|---|---|
Animalia | Chordata | Reptilia | Squamata | Natricidae |
Scientific Name: | Thamnophis scaliger (Jan, 1863) |
Red List Category & Criteria: | Vulnerable B1ab(iii) ver 3.1 |
Year Published: | 2007 |
Date Assessed: | 2007-03-01 |
Assessor(s): | Canseco-Márquez, L., Mendoza-Quijano, F. & Gustavo Quintero Díaz |
Reviewer(s): | Cox, N., Chanson, J.S. & Stuart, S.N. (Global Reptile Assessment Coordinating Team) |
Justification: Listed as Vulnerable because its extent of occurrence is less than 20,000 km², it is known from fewer than ten locations, it is severely fragmented in parts of its range, and there is continuing decline in the extent and quality of its habitat. |
Range Description: | This species is endemic to central Mexico. It is present as isolated highland populations in the Central Plateau and the volcanic belt. It has been recorded from Michoacan, Aguascalientes, State of Mexico and the Distrito Federal. It has an elevational range of 2,230 to 3,000 m asl. |
Countries occurrence: | Native: Mexico |
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Range Map: | Click here to open the map viewer and explore range. |
Population: | It is an uncommon species. |
Current Population Trend: | ![]() |
Additional data: |
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Habitat and Ecology: | The species is associated with streams and small canyons in semi-arid dry grasslands, shrubland and oak forest. It can be found in secondary habitats including agricultural areas, such as cattle pasture. It is a viviparous species. |
Systems: | Terrestrial |
Major Threat(s): | It is threatened by extensive habitat conversion to agricultural use. Populations can remain in areas with some limited habitat conversion. |
Conservation Actions: | It is not known to occur in any protected areas. There is a need to establish protected areas for this species. Further research is needed into the ecology, natural history and population of this species. |
Citation: | Canseco-Márquez, L., Mendoza-Quijano, F. & Gustavo Quintero Díaz. 2007. Thamnophis scaliger. The IUCN Red List of Threatened Species 2007: e.T63993A12727823. . Downloaded on 23 April 2018. |
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