EN

Transitional Colilargo

Microakodontomys transitorius

Declining

Overview

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

Microakodontomys transitorius faces severe habitat loss due to agricultural expansion and cattle ranching across its limited range in the Brazilian Cerrado. The species' specialized habitat requirements make it particularly vulnerable to fragmentation, as remaining populations become isolated in small patches of native grassland. Mining activities and infrastructure development further reduce available habitat, while the conversion of natural areas to soybean cultivation continues to accelerate throughout its range.

Threat summary

Habitat

This small rodent inhabits the Cerrado savanna grasslands of central Brazil, preferring areas with dense grass cover and scattered shrubs. It appears to require specific microhabitat conditions within the broader Cerrado ecosystem, making it sensitive to habitat modifications.

Savanna· majorGrassland· major

Conservation measures underway

Site/area protection

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Frequently asked questions

Why is Transitional Colilargo classified as Endangered?
Transitional Colilargo 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. Microakodontomys transitorius faces severe habitat loss due to agricultural expansion and cattle ranching across its limited range in the Brazilian Cerrado. The species' specialized habitat requirements make it particularly vulnerable to fragmentation, as remaining populations become isolated in small patches of native grassland. Mining activities and infrastructure development further reduce available habitat, while the conversion of natural areas to soybean cultivation continues to accelerate throughout its range.
Where does Transitional Colilargo live?
Transitional Colilargo occurs in Brazil. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Transitional Colilargo?
The main threats to Transitional Colilargo 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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