EN

Glossoscolex riograndensis

Unknown

Overview

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

Glossoscolex riograndensis faces severe habitat degradation from agricultural expansion and urbanization across its limited range in southern Brazil. The species' specialized soil requirements make it particularly vulnerable to land-use changes that alter soil chemistry and structure. Pollution from agricultural runoff and industrial activities further threatens the earthworm's sensitive ecosystem, while climate change may be shifting suitable habitat conditions beyond the species' adaptive capacity.

Threat summary

Habitat

This large earthworm species inhabits specific soil types in the Atlantic Forest region of Rio Grande do Sul, Brazil, requiring well-drained, organic-rich soils with particular moisture and pH conditions. The species is closely associated with native forest floor ecosystems where it plays a crucial role in soil formation and nutrient cycling.

Other threatened species in GLOSSOSCOLECIDAE

EN

Holoscolex dossantosi

Unknown
EN

Fimoscolex sporadochaetus

Unknown
VU

Glossoscolex lutocolus

Unknown
VU

Glossoscolex matogrossensis

Unknown

Frequently asked questions

Why is Glossoscolex riograndensis classified as Endangered?
Glossoscolex riograndensis is classified as Endangered — facing a very high risk of extinction in the wild — because population numbers are declining steeply and key habitats are under sustained pressure. Glossoscolex riograndensis faces severe habitat degradation from agricultural expansion and urbanization across its limited range in southern Brazil. The species' specialized soil requirements make it particularly vulnerable to land-use changes that alter soil chemistry and structure. Pollution from agricultural runoff and industrial activities further threatens the earthworm's sensitive ecosystem, while climate change may be shifting suitable habitat conditions beyond the species' adaptive capacity.
Where does Glossoscolex riograndensis live?
Glossoscolex riograndensis 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 Glossoscolex riograndensis?
The main threats to Glossoscolex riograndensis 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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