Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Cycadopsida Cycadales Zamiaceae

Scientific Name: Zamia spartea
Species Authority: A.DC.

Assessment Information [top]

Red List Category & Criteria: Critically Endangered A2abd ver 3.1
Year Published: 2010
Date Assessed: 2009-10-31
Assessor(s): Chemnick, J & Gregory, T.
Reviewer(s): Donaldson, J.S. & Bösenberg, J.D.
Based on decline at known locations, which exceeds 80%, this species qualifies as Critically Endangered. Would otherwise qualify as Endangered based on an extent of occurrence of 1,235 km² and ongoing decline as well as a population size of <2,500 mature individuals.
Previously published Red List assessments:
2003 Critically Endangered (CR)
1998 Endangered (E)

Geographic Range [top]

Range Description: Z. spartea is known only from the Isthmus of Tehuantepec region of Chiapas and perhaps neighbouring Oaxaca, Mexico.
Countries occurrence:
Mexico (Oaxaca)
Lower elevation limit (metres): 100
Upper elevation limit (metres): 500
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: The population at Matias Romero in Oaxaca consists of 2,000 plants.
Current Population Trend: Decreasing
Additional data:
Number of mature individuals: 2000-2500
Population severely fragmented: No

Habitat and Ecology [top]

Habitat and Ecology: This species grows in generally well drained soils and under arid conditions. Dry oak forests at low elevations. Occasionally in hilly grasslands. Does seem to persist somewhat in highly disturbed areas.
Systems: Terrestrial
Generation Length (years): 30

Threats [top]

Major Threat(s): Habitat destruction is fortunately not as severe as in areas with more fertile soils. Most of the habitat is used for grazing cattle and this causes little damage to the cycads.

Conservation Actions [top]

Conservation Actions: This species is listed on Appendix II of the CITES Appendices.

Citation: Chemnick, J & Gregory, T. 2010. Zamia spartea. The IUCN Red List of Threatened Species 2010: e.T42118A10653644. . Downloaded on 10 October 2015.
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