Guwahati, July 12 -- A male Hoolock gibbon (Hoolock hoolock) has been recorded at an altitude of 2,267 metres in Arunachal Pradesh's Namdapha National Park and Tiger Reserve, the highest elevation at which the species has been documented within the reserve, officials said in a statement.

The sighting was made using camera traps deployed during routine wildlife monitoring activities.

While the species is known to occur up to elevations of 2,700 metres, this is the highest confirmed record within Namdapha, according to the park's Field Director and Chief Conservator of Forests, Arup Kumar Deka.

Deka noted that the observation points to the ecological importance of mid- and high-altitude forest ecosystems for the long-term survival of the...