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Sumatran tigers on path to recovery

Sumatran tigers on path to recovery

A new study says Sumatran tigers are increasing in Indonesia's Bukit Barisan NP despite the continued threat of living in an 'In Danger' World Heritage Site.

A new scientific publication from WCS (Wildlife Conservation Society) and the Bukit Barisan Selatan National Park Authority looks at the effectiveness of the park's protection zone and finds that the density of Sumatran tigers has increased despite the continued threat of living in an 'In Danger' World Heritage Site.

Living only on the Indonesian island of Sumatra, the Critically Endangered Sumatran tiger (Panthera tigris sumatrae) is the only extant sub-species of 'Island tigers', which includes the now-extinct Javan and Bali tiger. This sub-species is genetically distinct from the other six sub-species of continental tigers.

Sumatran tigers face many challenges to their continued existence in the wild, where they require a home range of 25,000 hectares. These include being poached for their skin, bones and other body parts, involvement in conflict with people, a depleted prey base, and habitat loss.

The study set 123 PantheraCam camera traps over a 1,000 km2 forest block located in a protection zone specially designated by the Bukit Barisan Selatan National Park Authority to improve park protection and aid in the recovery of flagship species.

Results of the camera-trap study showed a Sumatran tiger population density increase to 2.8 tigers/100 km2 (2015) from 1.6 tigers/100 km2 (2002). Furthermore, the proportion of male and female tigers recently recorded was 1: 3. "This ratio indicates that the tiger population in the National Park is in a healthy condition and breeding opportunity exists for many females within the areas we surveyed," said lead author, Wulan Pusparini, WCS Species Conservation Specialist. "Our study not only looks at population condition, but also used the photographs to assess the threat of people illegally entering the park."

Timbul Batubara, one of the co-authors and the then head of the Bukit Barisan National Park stated, "The tiger population increase can't be separated from our efforts to maintain this area through ranger patrols. With support from WCS and other partners, we conducted patrols in and around the park to remove tiger and prey snare traps and prevent habitat encroachment."

WCS-Indonesia Country Director and co-author of the paper Dr Noviar Andayani added, "This increasing population trend in Sumatran tigers is a dream come true for all conservationists in Indonesia. I appreciate the work of the park authority and our field team for their efforts in not only protecting tigers and their habitat, but also collecting robust research data to demonstrate this trend and ensure that in the coming years, the UNESCO Tropical Heritage of Sumatra can be removed from the 'in danger list'."

This work was supported by Panthera and the U.S. Fish and Wildlife Service.

Head over to our Little Critterz section to check out our highly collectible and adorable carded porcelain Tiger figurine. It takes a lot of experience, skill and attention to each tiny detail to produce this wonderful porcelain Sumatran tiger figurine.



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