VU

Schwantesia constanceae

Declining

Overview

A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.

Schwantesia constanceae faces severe pressure from habitat degradation in its restricted range within the Succulent Karoo biome of South Africa. Agricultural expansion and overgrazing by livestock have fragmented its specialized quartz field habitats, while climate change threatens to alter the precise moisture and temperature conditions this succulent requires. Mining activities and urban development further reduce available habitat, with the species' slow growth rate limiting its ability to recover from disturbances.

Threat summary

Habitat

This species is endemic to the quartz fields and rocky outcrops of the Succulent Karoo in the Northern Cape Province of South Africa. It grows in specialized microhabitats among quartz pebbles and granite formations, requiring well-drained soils and specific moisture conditions typical of winter-rainfall Mediterranean-type ecosystems.

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Frequently asked questions

Why is Schwantesia constanceae classified as Vulnerable?
Schwantesia constanceae is classified as Vulnerable because the population is declining and the species faces a high risk of extinction in the medium-term future if current pressures continue. Schwantesia constanceae faces severe pressure from habitat degradation in its restricted range within the Succulent Karoo biome of South Africa. Agricultural expansion and overgrazing by livestock have fragmented its specialized quartz field habitats, while climate change threatens to alter the precise moisture and temperature conditions this succulent requires. Mining activities and urban development further reduce available habitat, with the species' slow growth rate limiting its ability to recover from disturbances.
Where does Schwantesia constanceae live?
Schwantesia constanceae occurs in across multiple regions. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Schwantesia constanceae?
The main threats to Schwantesia constanceae are ai-1, ai-2, ai-3, and ai-4. The full IUCN-classified threat record for this species is detailed on the species page.

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