VU

Cybianthus boissieri

Declining

Overview

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

Cybianthus boissieri faces significant pressure from deforestation and habitat fragmentation across its limited range in the Atlantic Forest region of Brazil. Agricultural expansion, particularly cattle ranching and crop cultivation, continues to reduce the remaining forest patches where this species occurs. Urban development and infrastructure projects further fragment the already restricted habitat, isolating populations and reducing genetic diversity.

Threat summary

Habitat

This species inhabits montane Atlantic Forest remnants in southeastern Brazil, typically occurring in humid cloud forests and forest edges at elevations between 800-1,500 meters. It favors areas with dense canopy cover and high humidity levels characteristic of the region's remaining primary and secondary forest fragments.

Savanna· major

Other threatened species in PRIMULACEAE

EN

Bonellia loeflingii

Declining
EN

Ardisia breedlovei

Declining
EN

Ardisia rarescens

Declining
CR

Geissanthus lehmannii

Declining

Frequently asked questions

Why is Cybianthus boissieri classified as Vulnerable?
Cybianthus boissieri 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. Cybianthus boissieri faces significant pressure from deforestation and habitat fragmentation across its limited range in the Atlantic Forest region of Brazil. Agricultural expansion, particularly cattle ranching and crop cultivation, continues to reduce the remaining forest patches where this species occurs. Urban development and infrastructure projects further fragment the already restricted habitat, isolating populations and reducing genetic diversity.
Where does Cybianthus boissieri live?
Cybianthus boissieri 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 Cybianthus boissieri?
The main threats to Cybianthus boissieri 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.

Get weekly conservation intelligence

One short digest a week of the most striking species and country data we ship, plus breaking conservation news paired with our database where it matters.

Free, no spam. One-click unsubscribe in every email.