|Scientific Name:||Turbinicarpus valdezianus|
|Species Authority:||(H.Moeller) Glass & R.A.Foster|
Pelecyphora valdeziana H.Moeller
|Taxonomic Source(s):||Hunt, D., Taylor, N. and Charles, G. (compilers and editors). 2006. The New Cactus Lexicon. dh Books, Milborne Port, UK.|
|Taxonomic Notes:||Accepted as a species by Anderson (2001) and Hunt (1999).|
|Red List Category & Criteria:||Vulnerable A2acd ver 3.1|
|Assessor(s):||Fitz Maurice, W.A. & Fitz Maurice, B|
|Reviewer(s):||Superina, M., Goettsch, B.K. & Chanson, J.S.|
Turbinicarpus valdezianus qualifies as Vulnerable due to a continuing decline in the number of mature individuals. A population decline of at least 30% in the last 12 years (generation time is estimated to be four years) has taken place. Large numbers of plants were destroyed by the construction of the Saltillo airport and the creation of large poultry farms south of Saltillo. Large numbers of plants have been and continue to be removed by collectors at known sites.
|Previously published Red List assessments:||
|Range Description:||This cactus occurs in Mexico from Saltillo, in Coahuila state southwards nearly to Matehuala in San Luis Potosí state, in an area of 40,000 km². It grows at altitudes ranging from 1,400 to 1,600 m asl.|
Native:Mexico (Coahuila, Nuevo León, San Luis Potosí)
|Lower elevation limit (metres):||1400|
|Upper elevation limit (metres):||1600|
|Range Map:||Click here to open the map viewer and explore range.|
|Population:||It is estimated that there are less than 10,000 plants.|
|Current Population Trend:||Decreasing|
|Habitat and Ecology:||This cactus grows in typical Chihuahuan Desert vegetation among calcareous rocks.|
|Generation Length (years):||4|
|Use and Trade:||This cactus is illegally collected to be used as an ornamental.|
|Major Threat(s):||The major threats for this species are illegal collecting and human activities. The northernmost subpopulations near Saltillo are affected by the construction of an airport and the expanding chicken farms.|
This cactus is listed on CITES Appendix I, but the laws governing imports in the countries of destination need to be enforced.
The species is legally protected in Mexico by the national list of species at risk of extinction, NOM-059-SEMARNAT-2010, where it is listed under the category “subject to special protection” (Pr; SEMARNAT 2010).
This species is widely propagated. The Cadereyta Regional Botanic Gardens has developed a universal technique to reproduce species of the genus Turbinicarpus (including Gymnocactus), with a rate of 5x/4 weeks and 95% soil adaptation success (E. Sánchez pers. comm. 2011).
|Citation:||Fitz Maurice, W.A. & Fitz Maurice, B. 2013. Turbinicarpus valdezianus. The IUCN Red List of Threatened Species 2013: e.T41000A2950016. . Downloaded on 10 February 2016.|
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