Exploring the Endemic Species of the Ryukyu Islands
The Ryukyu Island Arc is divided into North, Central, and South Ryukyu by the Kerama Gap and Tokara Strait. Throughout the ice ages, these islands were repeatedly connected to and separated from the mainland, resulting in a unique biodiversity. The mountainous Yambaru region in northern Okinawa, Iriomote Island, Tokunoshima, and Amami Oshima have all been collectively designated as UNESCO World Natural Heritage sites.
Hi, I’m Wanyu — Your Certified Nature Guide in Yambaru
Originally from Taiwan and a resident of Kunigami Village since 2017, I hold a Master’s degree in Ecology and Evolutionary Biology. I focus on turning scientific knowledge into real-world discoveries, leading you into the forest to encounter Yambaru’s extraordinary wildlife firsthand.
- Professional Credentials: The only certified English-speaking guide in Kunigami / Okinawa Tourism Ambassador (Nature).
- Global Experience: I have proudly hosted guests from numerous countries, providing professional insights and deep local knowledge.
- Academic Background: M.S. in Ecology and Evolutionary Biology.
- Core Expertise: Okinawa Rail, endemic herpetofauna, and forest ecosystems.
Mammals
The four World Natural Heritage islands are home to around 21 species of mammals, including 13 endemic species.
Birds
About 300 bird species can be observed on the four World Heritage islands, including 6 endemic species, 3 of which are found in Yanbaru.
Reptiles
Approximately 36 species of land reptiles, including 23 endemic species, can be found across the four islands.
Amphibians
Around 21 amphibian species, including 18 endemics, inhabit the four World Natural Heritage islands.
Insects
The islands boast an incredible diversity of insects, with around 6,000 species, including 1,600 endemics.
Other Animals
There are 47 species of terrestrial crustaceans, including 15 endemics. This section also includes other invertebrates.
Plants
Roughly 2,000 species of vascular plants, including 200 endemics, grow across the four World Natural Heritage islands.
Invasive Species
Explore the invasive animals and plants on the four World Heritage islands, as designated by Japan’s Specific Invasive Species list.
Recent Observation Records
Great guide and experience - We had a lovely time with Wanyu looking for endemic birds. She was able to fit us into her schedule and created a special combined night/morning program for us... read more
Molly S2026-04-28
Lovely forest walk and butterfly garden (daytime) - We had a lovely time with Wanyu as our guide to Yanbaru's nature! We did the forest walk and butterfly garden during daytime, and learned a lot about both... read more
Diana S2026-04-25
Recommended Review for Wanyu’s Tour - I had an incredible "Night Birding" tour with Wanyu, and it was undoubtedly the highlight of our trip. Wanyu is an exceptional nature guide—kind, knowledgeable, and deeply passionate about the... read more
OnAir209087169522026-03-19
Explore Yambaru and the World Heritage Islands