It’s a tough time to be a tiger. Habitat loss, poaching , and depleting resources have seen their numbers drop across the globe, but new research has shown that even small pockets of protected habitat can have a positive impact on their survival. The rest of this article is behind a paywall. Please sign in or subscribe to access the full content.

The study takes us to the Leuser Ecosystem on the Indonesian island of Sumatra, home to critically endangered Sumatran or Sunda tigers ( Panthera tigris sondaica ). Their latter name comes from the Sunda Islands, including Java and Bali where they were once found, but today the only surviving population is in Sumatra.

Sumatra's Leuser Ecosystem is about three times the size of Yellowstone National Park and a vital region for the tigers, be

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