Surprise Thorius
CR

Surprise Thorius

Thorius insperatus

Declining

Photo: (c) Luis Jimenez Jimenez, all rights reserved, uploaded by Luis Jimenez Jimenez

Overview

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

Thorius insperatus faces severe threats from habitat destruction due to agricultural expansion and logging activities in its restricted montane forest range. The species' extremely limited distribution makes it particularly vulnerable to local environmental changes, with deforestation fragmenting the remaining cloud forest patches essential for its survival. Climate change poses an additional threat by altering the moisture regimes and temperature conditions of the high-elevation habitats this salamander depends upon.

Threat summary

Habitat

This diminutive salamander inhabits cloud forests and pine-oak forests at high elevations in the mountains of Oaxaca, Mexico. It requires moist microhabitats within these montane ecosystems, typically found in leaf litter and under logs in areas with consistent humidity and cool temperatures.

Forest· majorForest - Subtropical/tropical moist montane· major

Conservation measures underway

Species recovery

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Frequently asked questions

Why is Surprise Thorius classified as Critically Endangered?
Surprise Thorius 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. Thorius insperatus faces severe threats from habitat destruction due to agricultural expansion and logging activities in its restricted montane forest range. The species' extremely limited distribution makes it particularly vulnerable to local environmental changes, with deforestation fragmenting the remaining cloud forest patches essential for its survival. Climate change poses an additional threat by altering the moisture regimes and temperature conditions of the high-elevation habitats this salamander depends upon.
Where does Surprise Thorius live?
Surprise Thorius occurs in Mexico. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Surprise Thorius?
The main threats to Surprise Thorius are 5.1, 5.1.1, 8.1, and 8.2. The full IUCN-classified threat record for this species is detailed on the species page.

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