Cycloramphus stejnegeri
Overview
A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.
Cycloramphus stejnegeri faces severe population decline primarily due to habitat destruction from urban expansion and agricultural conversion in Brazil's Atlantic Forest region. The species' extremely restricted range makes it particularly vulnerable to localized threats, with deforestation and infrastructure development fragmenting its remaining habitat. Water pollution from agricultural runoff and urban waste further degrades the stream environments essential for its reproduction.
Habitat
This critically endangered frog inhabits Atlantic Forest streams and adjacent riparian vegetation in southeastern Brazil. It requires clean, fast-flowing water with rocky substrates for breeding and forested areas with dense leaf litter for foraging.