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Plesiolebias xavantei

Declining

Overview

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

Plesiolebias xavantei faces severe threats from agricultural expansion and cattle ranching activities that destroy and fragment its seasonal wetland habitats in the Brazilian Cerrado. The species' dependence on temporary pools makes it particularly vulnerable to hydrological changes caused by water extraction for irrigation and altered precipitation patterns. Habitat degradation from sedimentation and pollution further compromises the water quality essential for this killifish's survival and reproduction.

Threat summary

Habitat

This annual killifish inhabits temporary seasonal pools and wetlands in the Brazilian Cerrado savanna, particularly in areas with sandy soils that form shallow water bodies during the rainy season. The species requires these ephemeral aquatic environments for its complete life cycle, with eggs surviving the dry season buried in substrate until the next flooding period.

Savanna· major

Frequently asked questions

Why is Plesiolebias xavantei classified as Endangered?
Plesiolebias xavantei 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. Plesiolebias xavantei faces severe threats from agricultural expansion and cattle ranching activities that destroy and fragment its seasonal wetland habitats in the Brazilian Cerrado. The species' dependence on temporary pools makes it particularly vulnerable to hydrological changes caused by water extraction for irrigation and altered precipitation patterns. Habitat degradation from sedimentation and pollution further compromises the water quality essential for this killifish's survival and reproduction.
Where does Plesiolebias xavantei live?
Plesiolebias xavantei 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 Plesiolebias xavantei?
The main threats to Plesiolebias xavantei 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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