Bonin Islands

• Location: North-Western Pacific Ocean, approximately 1,000 km south of Tokyo, Japan.
• Other name: Ogasawara Islands.
• Geographical origin: Volcanic oceanic islands that have never been connected to a continent.
• Island groups: Mukojima, Chichijima and Hahajima, along with other islands including those of the Kazan group and Nishinoshima.
• UNESCO World Heritage Site: Inscribed in 2011 under criterion (ix) for outstanding ecological and evolutionary processes.
• Biodiversity: Known for high endemism and adaptive radiation, particularly among land snails and plants.
• Important species: Bonin flying fox, an endangered bat endemic to the islands; green sea turtles, whales and dolphins are also found in the surrounding waters.
• Major conservation threat: Invasive alien species, which threaten native ecosystems.

Prelims MCQ

Q. Consider the following statements about the Bonin Islands:

1. They are located in the North-Western Pacific Ocean.
2. They are a UNESCO Natural World Heritage Site.
3. They have never been connected to a continent.
4. They are known for high endemism and adaptive radiation.

Which of the statements given above are correct?

A. 1 and 2 only

B. 1, 2 and 3 only

C. 2, 3 and 4 only

D. 1, 2, 3 and 4

Answer: D. 1, 2, 3 and 4

Explanation: The Bonin Islands, also called the Ogasawara Islands, are oceanic islands in Japan recognised for their unique evolutionary processes and endemic species.

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