Biastes truncatus
CR

Biastes truncatus

Local name: pärlbi

UnknownVUEU

Photo: Photo: (c) naturalist_ua, some rights reserved (CC BY-NC)

Overview

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

The pärlbi faces severe population declines due to extensive deforestation and habitat fragmentation across its limited range in Southeast Asian tropical forests. Agricultural expansion, particularly oil palm plantations, has eliminated much of its primary forest habitat, while its specialized feeding requirements make it highly vulnerable to ecosystem disruption.

Threat summary

Habitat

Inhabits primary and mature secondary tropical rainforests in Southeast Asia, typically in the canopy and mid-story levels where it forages among dense vegetation. Requires intact forest ecosystems with diverse plant communities that support its specialized invertebrate prey base.

Other threatened species in Apidae

VU

Guernsey Nomad Bee

Nomada similis

Unknown
VU

Flat-ridged Nomad Bee

Nomada obtusifrons

Unknown
CR

Nomada siciliensis

Unknown
Anthophore estivaleCR

Anthophore estivale

Anthophora aestivalis

Unknown

Frequently asked questions

Why is pärlbi classified as Critically Endangered?
pärlbi is classified as Critically Endangered — facing an extremely high risk of extinction in the wild — because population sizes are very small, declining sharply, or restricted to a tiny range. The pärlbi faces severe population declines due to extensive deforestation and habitat fragmentation across its limited range in Southeast Asian tropical forests. Agricultural expansion, particularly oil palm plantations, has eliminated much of its primary forest habitat, while its specialized feeding requirements make it highly vulnerable to ecosystem disruption.
Where does pärlbi live?
pärlbi 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 pärlbi?
The main threats to pärlbi 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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