CR

Propithecus deckenii

Declining

Overview

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

Decken's sifaka faces severe population decline primarily due to extensive slash-and-burn agriculture that destroys its dry deciduous forest habitat across western Madagascar. Hunting pressure for bushmeat consumption and traditional medicine compounds habitat loss, while charcoal production and livestock grazing further fragment remaining forest patches. Climate change exacerbates these pressures by altering rainfall patterns in already arid regions, reducing food availability during critical dry seasons.

Threat summary

Habitat

Decken's sifaka inhabits dry deciduous forests and gallery forests in western Madagascar, particularly favoring areas with dense canopy cover and diverse tree species that provide year-round food sources. The species requires large territories with continuous forest connectivity, as it rarely descends to the ground and depends on arboreal pathways for movement between feeding and sleeping sites.

Forest· majorForest - Subtropical/tropical dry· majorRocky areas· major

Conservation measures underway

Site/area protectionLegislation