Mammillaria sanchez-mejoradae
– Critically Endangered
Taxonomy
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Kingdom:
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PLANTAE
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Phylum:
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TRACHEOPHYTA
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Class:
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MAGNOLIOPSIDA
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Order:
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CARYOPHYLLALES
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Family:
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CACTACEAE
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Scientific Name:
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Mammillaria sanchez-mejoradae
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Species Authority:
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R.González
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Common Name/s:
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Taxonomic Notes:
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Accepted as a valid species by Anderson (2001), Hunt (1999) and Pilbeam (1999).
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Assessment Information
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Red List Category & Criteria:
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CR B1ab(v)+2ab(v) ver 3.1 (2001)
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Year Assessed:
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2002
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Assessor/s:
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Fitz Maurice, W.A. & Fitz Maurice, B.
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Evaluator/s:
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Stuppy, W. & Taylor, N.P. (Cacti & Succulent Plant Red List Authority)
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Justification:
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Qualifies due to its small population in a single area, where it continues to decline as a result of illegal collecting.
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Geographic Range
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Range Description:
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Since this species was discovered by Gonzalez more than 15 years ago, the population has diminished by an estimated 75%. Grows among low calcareous rock outcroppings over a range of 1 km². Current estimated population is less than 500 individuals.
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Countries:
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Native:
Mexico (Nuevo León)
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Population
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Population Trend:
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Habitat and Ecology
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Habitat and Ecology:
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On steep volcanic rock in semi-desert at about 2,300 m altitude.
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System:
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Terrestrial
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List of Habitats:
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Threats
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Threats:
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Very threatened by illegal collecting. The location is well known to both commercial and amateur collectors. While the area is enclosed by an electric fence to prevent theft of farming machinery, access is available for a small fee.
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List of Threats:
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| 3.5.3 | Harvesting (hunting/gathering) - Cultural/scientific/leisure activities - Regional/international trade (ongoing) |
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Conservation Actions
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Conservation Actions:
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Listed on CITES App. II, but enforcement of the laws in the countries of destination is needed. This species is widely propagated.
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List of Conservation Actions:
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| 1.2.1.1 | Policy-based actions - Legislation - Development - International level (in place) |
| 1.2.2.1 | Policy-based actions - Legislation - Implementation - International level (needed) |
| 5.7.1 | Species-based actions - Ex situ conservation actions - Captive breeding/Artificial propagation (in place) |
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Bibliography
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Bibliography:
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Anderson, E.F. 2001. The Cactus Family. Timber Press, Portland. González, R. 1992. Mammillaria sanchez-mejoradae Una especie nueva de familia Cactaceae. Cactaceas y Suculentas Mexicanas 37: 3. Hunt, D. 1999. CITES Cactaceae Checklist, 2nd ed. Royal Botanic Gardens, Kew and International Organization for Succulent Plant Study (IOS). Pilbeam, J. 1999. Mammillaria. Cirio Publishing Services, Southampton.
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