Geometric Tortoise
CR

Geometric Tortoise

Psammobates geometricus

Declining

Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Geometric_tortoise

Overview

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

The geometric tortoise faces severe habitat loss due to agricultural expansion and urban development in South Africa's Western Cape, with over 96% of its natural renosterveld habitat already destroyed. Invasive alien vegetation, particularly Australian acacias, degrades remaining habitat patches by altering soil chemistry and plant communities. Road mortality poses an additional threat as tortoises cross roads between fragmented habitat patches, while illegal collection for the pet trade continues despite legal protection.

Threat summary

Habitat

The geometric tortoise is endemic to the renosterveld vegetation of South Africa's Western Cape province, inhabiting low-lying areas with fine-leaved shrubland on clay and granite-derived soils. This specialized habitat occurs in a Mediterranean climate zone with winter rainfall, supporting diverse succulent and shrub communities that provide both food and shelter for the tortoise.

Shrubland· majorRocky areas· major

Conservation measures underway

Site/area managementSpecies managementSpecies recoveryLegislation

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Frequently asked questions

Why is Geometric Tortoise classified as Critically Endangered?
Geometric Tortoise is classified as Critically Endangered — facing an extremely high risk of extinction in the wild — because population sizes are very small, declining sharply, or restricted to a tiny range. The geometric tortoise faces severe habitat loss due to agricultural expansion and urban development in South Africa's Western Cape, with over 96% of its natural renosterveld habitat already destroyed. Invasive alien vegetation, particularly Australian acacias, degrades remaining habitat patches by altering soil chemistry and plant communities. Road mortality poses an additional threat as tortoises cross roads between fragmented habitat patches, while illegal collection for the pet trade continues despite legal protection.
Where does Geometric Tortoise live?
Geometric Tortoise occurs in South Africa. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Geometric Tortoise?
The main threats to Geometric Tortoise are 1.1, 11.1, 2.1, and 2.3. The full IUCN-classified threat record for this species is detailed on the species page.

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