Overview

Distribution

Range Description

This species is restricted to a small area (ca. 63 km²) in the state of Zacatecas, Mexico. Only three separate localities are known.
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Physical Description

Type Information

Holotype for Opuntia chaffeyi Britton & Rose
Catalog Number: US 535976
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Original publication and alleged type specimen examined
Preparation: Pressed specimen
Collector(s): E. Chaffey
Year Collected: 1910
Locality: Zacatecas, Mexico, North America
  • Holotype: Britton, N. L. & Rose, J. N. 1913. Contr. U.S. Natl. Herb. 16: 241.
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Source: National Museum of Natural History Collections

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Isotype for Opuntia chaffeyi Britton & Rose
Catalog Number: US 3047456
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Original publication and alleged type specimen examined
Preparation: Pressed specimen
Collector(s): E. Chaffey
Year Collected: 1910
Locality: Zacatecas, Mexico, North America
  • Isotype: Britton, N. L. & Rose, J. N. 1913. Contr. U.S. Natl. Herb. 16: 241.
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Source: National Museum of Natural History Collections

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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
Grows in the silty flood plain of a dried lake with scarce desert vegetation, mostly Prosopis and Larrea.

Systems
  • Terrestrial
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
CR
Critically Endangered

Red List Criteria
D

Version
3.1

Year Assessed
2013

Assessor/s
Hernández, H.M., Gómez-Hinostrosa, C. & Goettsch, B.K.

Reviewer/s
Chanson, J.S. & Goettsch, B.K.

Contributor/s

Justification
The known distribution of the species is extremely narrow (extent of occurrence is ca 63 km² and the area of occupancy is ca 12 km²), and it is known from three separate localities which are not severely fragmented. The estimated number of individuals is critically low, only about 15 mature individuals in total. The habitat is expected to decline in the future mostly due to cattle and agricultural development.

History
  • 2002
    Critically Endangered
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Population

Population
The species occurs in very low population densities, with no more than five plants at each of the localities, hence the population is potentially not greater than 15 mature individuals.

Population Trend
Decreasing
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Threats

Major Threats
Habitat destruction mostly by cattle is a major threat. The species is also harvested for medicinal purposes. The area could potentially be impacted by agricultural expansion if bore holes are sunk to get water for irrigation.
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Management

Conservation Actions

Conservation Actions
The establishment of protected areas is needed, as this species grows together with other threatened species. Listed on CITES Appendix II.
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Wikipedia

Opuntia chaffeyi

Opuntia chaffeyi is a species of plant in the Cactaceae family. It is endemic to Mexico. Its natural habitat is hot deserts. It is threatened by habitat loss.

Source


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