The NGO set up 20 camera traps across the 28,000ha reserve.

The programme, which is funded by San Diego Zoo Global, will help record the movements of endangered species in the reserve, providing evidence for research and biodiversity protection.

This is the first time a camera trap programme has been introduced at the reserve in Đà Nẵng.

Biologists are scheduled to check the camera traps every month to examine the condition of the animals.

Established in 1986, the reserve is home to 626 animal species and 793 plant species, including several endangered primates such as the Red-Shanked Douc (Pygathrix nemaeus), the northern buffed-cheeked gibbon and Edwards’s pheasant, which are rarely seen in nature.

Rapid urbanisation and illegal logging have encroached on the wildlife habitat and threatened the biodiversity of two nature reserves – the Bà Nà-Núi Chúa and Sơn Trả – in the city.

The World Wide Fund for Nature set up camera traps in 1992 and recorded a living Sao la, Vũ Quang ox, spindlehorn, or Asian bicorn (Pseudoryx nghetinhensis) – one of the world’s rarest large mammals -- in Vũ Quang Nature Reserve in 1999 and another in Quảng Nam Province in 2013.

Last year, San Diego Zoo Global and GreenViet launched a programme to highlight the importance of primate conservation and environmental protection for over 100 junior secondary school and high school students in Đà Nẵng.