Zamia wallisii

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:	Zamia wallisii
Species Authority:	A.Braun

Assessment Information [top]

Red List Category & Criteria:

Critically Endangered A2abd;B1ab(i,ii,iii,iv,v)+2ab(i,ii,iii,iv,v);C1 ver 3.1

Year Assessed:

2010

Assessor/s:

Stevenson, D.W.

Reviewer/s:

Donaldson, J.S. & Bösenberg, J.D.

Justification:
Qualifies for Critically Endangered status on the basis of three criteria. Estimated decline is >80% over the past 90 years (three generations), it has a small extent of occurrence and area of occupancy with high levels of decline and occurrence at a single locality, and an estimated population size of only 50 plants.

History:

2003	–	Critically Endangered (IUCN 2003)
1997	–	Vulnerable (Walter and Gillett 1998)

Geographic Range [top]

Range Description:	This species is endemic to Colombia. The type locality is near the town of Frontino in the Antioguia province and there are also plants found near Urrao.
Countries:	Native: Colombia (Colombia (mainland))

Population [top]

Population:	The only known population, comprising <50 plants, was last visited in 1997 and was in a zone that was being deforested.
Population Trend:	Decreasing

Habitat and Ecology [top]

Habitat and Ecology:	Z. wallisii grows in primary and secondary rain forest to cloud forest at 1,000-1,200 m as an understorey plant on poor clay soils. The plants occur on steep hillsides and hilltops.
Systems:	Terrestrial

Threats [top]

Major Threat(s):	This species is threatened by habitat destruction and fragmentation as a result of clearing/deforestation for agriculture (bananas and pineapples). It has also been reported that seed production is infrequent.

Major Threat(s):

This species is threatened by habitat destruction and fragmentation as a result of clearing/deforestation for agriculture (bananas and pineapples). It has also been reported that seed production is infrequent.

Conservation Actions [top]

Conservation Actions:	This species is listed on Appendix II of the CITES Appendices. Z. wallisii should be considered, along with Z. montana, as the most endangered species of Zamia in Columbia. Plants occur in the Las Orquideas National Park, Antioquia Providence, Colombia.

Conservation Actions:

This species is listed on Appendix II of the CITES Appendices. Z. wallisii should be considered, along with Z. montana, as the most endangered species of Zamia in Columbia. Plants occur in the Las Orquideas National Park, Antioquia Providence, Colombia.

Citation:	Stevenson, D.W. 2010. Zamia wallisii. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. <www.iucnredlist.org>. Downloaded on 09 February 2012.
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