Urgent Conservation: Camera Traps Reveal Critical Insights on Endangered Sumatran Tigers

Conservation and Camera Traps for Sumatran Tigers

Conserving threatened species requires continuous monitoring of their populations. Camera traps are an effective tool for researchers in this effort.

A team of scientists conducted a study on critically endangered Sumatran tigers in the Ulu Masen Ecosystem in Aceh, Indonesia. The study highlighted the urgent need for stronger conservation actions in the tigers’ habitat.

Led by Joe Figel of the Leuser International Foundation, the team set up camera traps at 52 locations from 2020 to 2022. They recorded footage over 23 months, capturing images of tigers 39 times across 16 sites. This effort identified 11 individual tigers, including eight males and one female.

The Sumatran tiger is the rarest tiger subspecies, with only about 400 remaining in the wild. Major threats include poaching and habitat loss.

The researchers deployed cameras in a grid pattern over an area of 462 square kilometers. Each camera was installed 40 to 45 centimeters above ground on trees along animal trails. This position allowed for simultaneous detection of passing tigers, helping researchers distinguish between individual tigers based on their stripe patterns and determining their sex.

Despite some cameras being damaged by elephants, the study concluded that camera traps provide better population estimates than traditional sign surveys, which look for footprints or other indications of a species’ presence.

The findings revealed an alarming male-skewed tiger population. Demand for tiger skins and body parts in traditional medicine contributes to their decline. The footage also showed a three-legged male tiger, indicating vulnerability to snares set by humans.

The study emphasized the urgent need for targeted protections for tigers in Ulu Masen. Snares pose a significant immediate threat to tigers and their prey. Researchers estimate that the area requires an additional 560 to 640 trained rangers for effective protection.

Further research is essential to conserve these endangered tigers and ensure their survival in the wild.