VU

Hypsolebias similis

Unknown

Overview

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

Hypsolebias similis faces severe threats from habitat destruction as its temporary pool habitats in the Brazilian Cerrado are converted to agriculture and urban development. The species' dependence on seasonal rainfall patterns makes it particularly vulnerable to climate change-induced alterations in precipitation cycles. Water pollution from agricultural runoff and cattle ranching activities further degrades the quality of remaining breeding pools.

Threat summary

Habitat

This annual killifish inhabits temporary pools and seasonal wetlands in the Brazilian Cerrado savanna, particularly in areas with sandy soils that flood during the rainy season. The species requires shallow, ephemeral water bodies that dry completely during the dry season, allowing their drought-resistant eggs to survive in the substrate.

Savanna· major

Other threatened species in RIVULIDAE

EN

Flame Rivulus

Cynodonichthys uroflammeus

Unknown
CR

Campellolebias brucei

Unknown
CR

Hypsolebias gilbertobrasili

Unknown
CR

Kryptolebias campelloi

Unknown

Frequently asked questions

Why is Hypsolebias similis classified as Vulnerable?
Hypsolebias similis is classified as Vulnerable because the population is declining and the species faces a high risk of extinction in the medium-term future if current pressures continue. Hypsolebias similis faces severe threats from habitat destruction as its temporary pool habitats in the Brazilian Cerrado are converted to agriculture and urban development. The species' dependence on seasonal rainfall patterns makes it particularly vulnerable to climate change-induced alterations in precipitation cycles. Water pollution from agricultural runoff and cattle ranching activities further degrades the quality of remaining breeding pools.
Where does Hypsolebias similis live?
Hypsolebias similis 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 Hypsolebias similis?
The main threats to Hypsolebias similis 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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