Tylecodon aridimontanus

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
PLANTAE	TRACHEOPHYTA	MAGNOLIOPSIDA	ROSALES	CRASSULACEAE

Scientific Name:	Tylecodon aridimontanus
Species Authority:	G.Will.

Assessment Information [top]

Red List Category & Criteria:	Near Threatened ver 3.1
Year Published:	2004
Assessor/s:	Craven, P. & Loots, S.
Reviewer/s:	Victor, J.E. & Hilton-Taylor, C. (Southern African Plants Red List Authority)
Contributor/s:
Justification: Tylecodon aridimontanus is assessed as Near Threatened. The RAMAS® Red List version 2.0 software package was used to make this assessment. This species is known from one location, although there are probably at least two subpopulations. Extent of occurrence is < 200 km² with area occupied by the species suspected to be < 20 km². It is assumed that the population is currently stable.

Geographic Range [top]

Range Description:	Known only from the summit of Heioab mountain in the Sperrgebiet (Diamond Area 1) in Namibia.
Countries:	Native: Namibia
Range Map:	Click here to open the map viewer and explore range.

Population [top]

Population Trend:	Stable

Population Trend:

Stable

Habitat and Ecology [top]

Habitat and Ecology:	Found at 1,000 m altitude, facing extreme sandblasting winds. The summit receives considerable condensation from fog. The mountain is completely isolated (Williamson 1995). Probably occurs in quartzite as the mountain seems to be made of this, although this species was not spotted on a recent field trip.
Systems:	Terrestrial

Threats [top]

Major Threat(s):	Collecting is a potential threat, even though the species grows in the Sperrgebiet, as collectors often enter the Sperrgebiet as succulent societies/tour groups. The plant is also battered by sandblasting. The mountain seems to be undisturbed at the moment (observation during fieldwork, September 2003).

Major Threat(s):

Collecting is a potential threat, even though the species grows in the Sperrgebiet, as collectors often enter the Sperrgebiet as succulent societies/tour groups. The plant is also battered by sandblasting. The mountain seems to be undisturbed at the moment (observation during fieldwork, September 2003).

Citation:	Craven, P. & Loots, S. 2004. Tylecodon aridimontanus. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 23 May 2013.
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