|Scientific Name:||Mammillaria bombycina Quehl|
|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:||The assessors recognize M. bombycina ssp. perezdelarosae as a good species. Therefore in this assessment only M. bobycina is considered.|
|Red List Category & Criteria:||Vulnerable A2a ver 3.1|
|Assessor(s):||Fitz Maurice, B & Fitz Maurice, W.A.|
|Reviewer(s):||Chanson, J.S. & Goettsch, B.K.|
When this species was first found in 1988, it used to be under great pressure from illegal collection. An estimated population reduction of 80% in a ten year period was inferred. However, it is now available in the market from propagation and this has reduced the pressure on wild populations. Furthermore, other subpopulations have since been found. Nonetheless, a past reduction in the population of around 30% (generation length five years) due to illegal collection is estimated. Even though the species has a very restricted range (extent of occurrence =160 km2, one location) it is listed as Vulnerable because there is no continuing decline of the population.
|Previously published Red List assessments:|
|Range Description:||This species is endemic to Mexico, and is known to occur in the states of Aguascalientes and Jalisco (Pilbeam 1999). The area covers around 16 x 10 km. It occurs from 2,340-2,500 m asl.|
|Range Map:||Click here to open the map viewer and explore range.|
|Population:||The species is known to occur in four localities (W.A. Fitz-Maurice pers. com. 2010). One of the subpopulations was severely depleted by collectors (Pilbeam 1999).|
|Current Population Trend:||Unknown|
|Habitat and Ecology:||It occurs in high mountains, in Quercus forests on steep slopes and grows in leaf-litter and sometimes on inaccesable cliffs (Pilbeam 1999).|
|Generation Length (years):||5|
|Use and Trade:||The species is used as an ornamental, and it has been found in Mexican trade (Bárcenas).|
|Major Threat(s):||In the past illegal collection was a major threat (Pilbeam 1999), however, today this species is widely available from propagation and the pressure in wild populations is minimum.|
|Conservation Actions:||The species is listed in NOM-059-SEMARNAT-2010 under "Special protection" (Pr; Protección especial; SEMARNAT 2010).|
|Amended reason:||The species distribution map has been added.|
Bárcenas, R.T. 2003. Chihuahuan Desert cacti in Mexico: an assessment of trade, management and conservation priorities. In: Robbins, C.S. (ed.), Prickly trade: trade and conservation of Chihuahuan Desert cacti, pp. 1-65. Traffic North, Washington DC.
Hunt, D., Taylor, N. and Charles, G. (compilers and editors). 2006. The New Cactus Lexicon. dh Books, Milborne Port, UK.
IUCN. 2013. IUCN Red List of Threatened Species (ver. 2013.1). Available at: http://www.iucnredlist.org. (Accessed: 12 June 2013).
IUCN. 2017. The IUCN Red List of Threatened Species. Version 2017-3. Available at: www.iucnredlist.org. (Accessed: 7 December 2017).
Pilbeam, J. 1999. Mammillaria. Cirio Publishing Services, Southampton.
SEMARNAT. 2010. NORMA Oficial Mexicana NOM-059-SEMARNAT-2010, Protección ambiental-Especies nativas de México de flora y fauna silvestres-Categorías de riesgo y especificaciones para su inclusión, exclusión o cambio-Lista de especies en riesgo..
|Citation:||Fitz Maurice, B & Fitz Maurice, W.A. 2017. Mammillaria bombycina (amended version of 2013 assessment). The IUCN Red List of Threatened Species 2017: e.T151196A121503778.Downloaded on 24 April 2018.|
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