Wildlife

Bangka slow loris survives, but its population remains unknown

Ecological / Economic90 / 10
EcologicalEconomic
Evidence / Opinion88 / 12
EvidenceOpinion
Consensus / Contested82 / 18
ConsensusContested
A white boat floats on calm blue water near shore
Illustrative image by Bernd đź“· Dittrich on Unsplash | Unsplash License

Published 3 November 2026. This story may be updated as it develops.

The story at a glance

A 2026 study uses records from a local rescue centre to document that Bangka slow lorises still survive on Bangka Island, despite a long gap in the scientific literature. 123

The evidence confirms presence, not recovery: the records cannot establish population size, and habitat loss and human-related hazards remain concerns. 12

What you need to know

  • Rescue records were collected across Bangka, but they are opportunistic and concentrated near the centre’s area of activity. The study says they cannot establish the species’ population size or density. 1
  • Among 43 lorises with detailed rescue circumstances, records include animals found in settlements or on roads, electrical-burn injuries, captivity or wildlife trade, and other incidents. At least three of these animals died. 1
  • The study cites an estimated 62% decline in loris forest habitat on Bangka between 2000 and 2012. Habitat degradation, roads, power lines and settlements are identified as concerns for the animals. 12
  • Local rescuers have released lorises, but post-release survival data are not available. The study’s confirmation of survival on the island does not show whether the population is increasing or recovering. 2
  • The authors recommend habitat protection, monitored releases, population surveys, genetic studies and a conservation-breeding programme. These are recommendations, not evidence that the proposed measures have been implemented. 2

Why this matters

The study replaces fear of possible extinction with evidence that the species persists, but it leaves basic conservation questions unresolved. Without stronger information on numbers, distribution and survival, the scale and direction of change on Bangka remain unclear. 12

What happens next

The study calls for systematic population surveys and genetic work, as well as monitoring animals after release. It also recommends habitat protection and conservation breeding. The supplied reporting does not establish whether or when these actions will proceed. 2

What we know

  • The study documents continued Bangka slow loris presence on Bangka Island using records from a local rescue centre. 1
  • Rescue incidents include animals found in settlements or on roads, electrical burns, captivity and wildlife trade; at least three of the 43 cases with detailed circumstances ended in death. 1
  • The study cites an estimated 62% loss of loris forest habitat on Bangka between 2000 and 2012. 1
  • The authors recommend surveys, genetic studies, monitored releases, habitat protection and conservation breeding. 2

What we don't know

  • The rescue records do not establish how many wild lorises remain, their population density or the population’s trend. 1
  • Post-release survival data are not available, so the long-term outcomes for released animals are unknown. 2
  • Systematic surveys are needed to clarify the species’ distribution and population status on Bangka. 2
  • The supplied reporting says genetic studies are recommended, but does not establish whether they will confirm the identity and range of lorises attributed to this species on Bangka, Belitung and Borneo. 2
  • The study recommends a Red List reassessment, but the supplied reporting does not say whether one will take place or change the species’ status. 2

Read the reporting

This WildNews briefing synthesises and summarises reporting from the sources below. WildNews did not produce the original reporting. Learn more about how we use AI

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