EN

Holoscolex dossantosi

Unknown

Overview

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

Holoscolex dossantosi faces severe threats from agricultural expansion and urbanization within its limited range in southeastern Brazil. The species' restricted distribution makes it particularly vulnerable to habitat fragmentation, as earthworm populations require continuous soil connectivity for dispersal and genetic exchange. Intensive farming practices, including heavy pesticide use and soil compaction from machinery, directly degrade the soil ecosystems this endemic earthworm depends upon for survival.

Threat summary

Habitat

This endemic earthworm inhabits the rich, organic soils of Atlantic Forest remnants and adjacent agricultural areas in southeastern Brazil. The species requires well-drained, humus-rich soils with stable moisture levels and minimal chemical contamination.

Other threatened species in GLOSSOSCOLECIDAE

EN

Glossoscolex riograndensis

Unknown
EN

Fimoscolex sporadochaetus

Unknown
VU

Glossoscolex lutocolus

Unknown
VU

Glossoscolex matogrossensis

Unknown

Frequently asked questions

Why is Holoscolex dossantosi classified as Endangered?
Holoscolex dossantosi 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. Holoscolex dossantosi faces severe threats from agricultural expansion and urbanization within its limited range in southeastern Brazil. The species' restricted distribution makes it particularly vulnerable to habitat fragmentation, as earthworm populations require continuous soil connectivity for dispersal and genetic exchange. Intensive farming practices, including heavy pesticide use and soil compaction from machinery, directly degrade the soil ecosystems this endemic earthworm depends upon for survival.
Where does Holoscolex dossantosi live?
Holoscolex dossantosi 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 Holoscolex dossantosi?
The main threats to Holoscolex dossantosi 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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