Rapid Action Fund

Organisation: Ostrava Zoo

Project focus: Urgent population surveys for Delacour’s Langur as evidence to support for the extension of a protected area

Location: Ninh Binh and Hoa Binh Provinces, Vietnam

Project date: October 2020 – January 2021

Species: Delacour’s Langur Trachypithecus delacouri

Supported by: Fondation Segré


The challenge

Delacour’s Langur has small and fragmented populations, with the only viable population being in the Van Long Nature Reserve. Contiguous to the nature reserve is approximately 1,000 hectares of unprotected land where a few groups of the langur can be found. This land is unprotected and intended to be used for tourism development and limestone quarrying. If the unprotected land was protected, it would represent a 50% increase of protected langur habitat from the Van Long Nature Reserve. 

With the looming threat of quarrying plans on the site next to the nature reserve, it is imperative that population surveys of the Delacour’s Langur be carried out immediately to substantiate the nomination of the site as a protected area. 

The project

In order to gain protected status for the langur habitat bordering Van Long Nature Reserve, the presence of Delacour’s Langur must be established. The ASAP Species Rapid Action Fund will support the project to:  

  • Conduct a survey to establish status of Delacour’s Langur in the unprotected area. 
  • Create a new protected area or extension to the Van Long Nature Reserve. 


The ASAP Species Rapid Action Fund is supported by:



Image credits: Tilo Nadler

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