CR

Pseudoblothrus oromii

Declining

Overview

Pseudoblothrus oromii is a critically endangered pseudoscorpion species endemic to the Canary Islands. This small arachnid belongs to the family Syarinidae and represents one of the most threatened invertebrate species in the Macaronesian region. The species was first described from cave systems in the volcanic landscapes of the Canary Islands, where it has adapted to the unique subterranean environment.

Like other pseudoscorpions, P. oromii is a predatory arthropod that feeds on small invertebrates, playing an important role in cave ecosystem dynamics. The species faces severe threats from habitat degradation and human activities that disturb its fragile cave environment.

Tourism development, quarrying activities, and general human encroachment into cave systems have significantly impacted the limited habitat available to this species. The volcanic nature of the Canary Islands creates a naturally fragmented landscape, making populations particularly vulnerable to local extinctions. Climate change poses additional risks through potential alterations to the microclimate conditions within caves that the species requires for survival.

Conservation efforts for P. oromii are limited but include habitat protection measures and monitoring programs. The species' inclusion in regional conservation assessments has helped raise awareness of its precarious status.

However, the extremely restricted range and specialized habitat requirements make this species particularly challenging to conserve, requiring targeted protection of specific cave systems and careful management of human activities in these sensitive environments.

Pseudoblothrus oromii faces primary threats from habitat destruction caused by tourism development, quarrying, and human disturbance of cave systems. The species' extremely limited range makes it highly vulnerable to local extinction events. Climate change may further threaten the species by altering the specific microclimate conditions required within its cave habitat.

Threat summary

Habitat

Pseudoblothrus oromii inhabits cave systems within the volcanic landscapes of the Canary Islands. The species is adapted to the stable, humid microclimate conditions found in these subterranean environments.

Artificial - Terrestrial· majorCaves and subterranean habitats· major

Conservation measures underway

Site/area protectionSite/area managementSpecies managementSpecies recovery

Frequently asked questions

Why is Pseudoblothrus oromii classified as Critically Endangered?
Pseudoblothrus oromii 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. Pseudoblothrus oromii faces primary threats from habitat destruction caused by tourism development, quarrying, and human disturbance of cave systems. The species' extremely limited range makes it highly vulnerable to local extinction events. Climate change may further threaten the species by altering the specific microclimate conditions required within its cave habitat.
Where does Pseudoblothrus oromii live?
Pseudoblothrus oromii occurs in Portugal, and Spain. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Pseudoblothrus oromii?
The main threats to Pseudoblothrus oromii are 1.1, 10.1, 2.1, and 4.1. The full IUCN-classified threat record for this species is detailed on the species page.

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