Ceratozamia mexicana

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Conservation Actions

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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
PLANTAE	TRACHEOPHYTA	CYCADOPSIDA	CYCADALES	ZAMIACEAE

Scientific Name:	Ceratozamia mexicana
Species Authority:	Brongn.
Synonym/s:	Ceratozamia intermedia Miq. Ceratozamia longifolia Miq.

Assessment Information [top]

Red List Category & Criteria:

Vulnerable A2acd+4cd ver 3.1

Year Published:

2010

Assessor/s:

Vazquez, M., Bojorquez, H., Torres, L., Sanchez-Moreno, S., Sanchez-Morales, L. & Torres-Hernandez, L.

Reviewer/s:

Donaldson, J.S. & Bösenberg, J.D.

Contributor/s:

Justification:
Classified as Vulnerable based on known decline in habitat over the past 50 years (ca. two generations) of 30-50%. In some places populations have declined by as much as 90% due to land clearing, but overall decline appears to be between 30% and 50%.

History:

2003	–	Vulnerable (IUCN 2003)
2003	–	Vulnerable
1997	–	Indeterminate (Walter and Gillett 1998)

Geographic Range [top]

Range Description:	This species occurs in the Hidalgo, Puebla, San Luis Potosí, Querétaro and Veracruz states of Mexico and are found widely distributed from low to moderate elevations.
Countries:	Native: Mexico (Hidalgo, Puebla, Querétaro, San Luis Potosí, Veracruz)
Range Map:	Click here to open the map viewer and explore range.

Population [top]

Population:	This species is known from six localities. Demographic studies at one of the localities in Coacoazintla (Veracruz state) indicate that the local population may exceed 500,000 individuals.
Population Trend:	Decreasing

Habitat and Ecology [top]

Habitat and Ecology:	Plants are widely distributed from low to moderate elevations and are found in areas ranging from evergreen tropical forests to cloud forests and mixed deciduous woodlands and a range of geological substrates. Typically found in rocky hills.
Systems:	Terrestrial

Threats [top]

Major Threat(s):	The mountain cloud forest habitat is threatened by habitat destruction. Forest is cleared for agriculture and cattle farming and is also impacted by the removal of wood for charcoal production. Strip mining to remove basaltic rock (e.g. in CoaCoatzincla) is also a threat, resulting in the removal of forest.

Major Threat(s):

The mountain cloud forest habitat is threatened by habitat destruction. Forest is cleared for agriculture and cattle farming and is also impacted by the removal of wood for charcoal production. Strip mining to remove basaltic rock (e.g. in CoaCoatzincla) is also a threat, resulting in the removal of forest.

Conservation Actions [top]

Conservation Actions:	This species is listed on Appendix I of the CITES Appendices. Plants are conserved in the Sierra Gorda Biosphere Reserve in Queretaro state.

Conservation Actions:

This species is listed on Appendix I of the CITES Appendices. Plants are conserved in the Sierra Gorda Biosphere Reserve in Queretaro state.

Citation:	Vazquez, M., Bojorquez, H., Torres, L., Sanchez-Moreno, S., Sanchez-Morales, L. & Torres-Hernandez, L. 2010. Ceratozamia mexicana. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 25 May 2013.
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