Taxonomy
Scientific Name
Stoeberia carpii Friedrich
Higher Classification
Dicotyledons
Family
AIZOACEAE
Synonyms
Jensenobotrya vanheerdei L.Bolus, Ruschianthemum merenskyanum Dinter
National Status
Status and Criteria
Endangered B1ab(iii,v)+2ab(iii,v)
Assessment Date
2022/08/08
Assessor(s)
P.C.V. Van Wyk, N.A. Helme & D. Raimondo
Justification
A species restricted to the Sperregebiet region of southern Namibia and the Richtersveld region of South Africa, it has an extent of occurrence (EOO) of 119 km² and an area of occupancy (AOO) of less than 40 km². It is known from three locations and is declining due to climate-linked drought mortality and severe livestock overgrazing in parts of its range. This species therefore qualifies for listing as Endangered under criterion B. As Namibia's population experiences similar drought mortality levels, its regional status is therefore not adjusted.
Distribution
Endemism
Not endemic to South Africa
Provincial distribution
Northern Cape
Range
This species occurs in Sperrgebiet region of southern Namibia to the lower Gariep Valley in South Africa.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Desert
Description
It grows amongst rocks on mountains, typically on southern slopes. This species is a large shrub that can grow up to two meters tall and has woody stems.
Threats
The population is declining due to climate change. Its entire range has experienced below-average rainfall since 2012. Drought has caused the loss of one former subpopulation at Lorelei Coal Mine. Predictions of future climate change include further increases in annual average temperature of between 1.4°C and 2.4°C by 2050, which will result in unbearably hot temperatures and ongoing aridification throughout significant portions of the year (Van Wilgen et al. 2017). Within South Africa it has also lost habitat to severe overgrazing by livestock between 2002 and 2014. The subpopulation at Pooitjiespram has been severely impacted by livestock grazing and harvesting for firewood, only a few plants remain.
Population

The population is declining due to the impacts of drought, livestock overgrazing and collection of stems for firewood. In Namibia where there is no livestock grazing subpopulations occur on the lower and upper slopes, whilst in South Africa subpopulations occur only on the higher peaks of the southern slopes.


Population trend
Decreasing
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Stoeberia carpii FriedrichLeast Concern Raimondo et al. (2009)
Bibliography

Raimondo, D., von Staden, L., Foden, W., Victor, J.E., Helme, N.A., Turner, R.C., Kamundi, D.A. and Manyama, P.A. 2009. Red List of South African Plants. Strelitzia 25. South African National Biodiversity Institute, Pretoria.


Snijman, D.A. 2013. Plants of the Greater Cape Floristic Region 2: The extra Cape flora. Strelitzia 30. South African National Biodiversity Institute, Pretoria.


Van Wilgen, N.J. and Herbst, M. 2017. Taking stock of parks in a changing world: The SANParks Global Environmental Change Assessment. SANParks, Cape Town.


Citation
Van Wyk, P.C.V., Helme, N.A. & Raimondo, D. 2022. Stoeberia carpii Friedrich. National Assessment: Red List of South African Plants version . Accessed on 2024/12/07

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Distribution map


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