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Aldabra Atoll, Seychelles


The world’s second largest coral atoll by land area, a World heritage site and Ramsar site,

Aldabra Atoll’s uniqueness lies not only in its outstanding geomorphology but also in the

array of flora and fauna which have evolved in the context of small island ecology.

Aldabra is home to the world’s largest population of the Aldabra Giant Tortoise and hosts

breeding populations of green and hawksbill turtles.


The Atoll is a breeding ground for thousands of seabirds including the largest breeding

population of greater and lesser frigate birds in the Indian Ocean. Land birds are a

feature of the Atoll and a high level of biodiversity and endemism is found amongst the

plants and insects on Aldabra.


The marine environment is also highly diverse with mangroves, seagrasses and coral reefs supporting an abundance of fish. The lagoon is a feature of the Atoll and may support the last remaining population of dugongs in the Seychelles.


The World Heritage Site is managed by the Seychelles Islands Foundation, a body established in 1979 by presidential decree with the mandate to ‘manage and conserve the natural life of the group of islands comprising the atoll of Aldabra in the Republic and to initiate and instigate scientific research into such natural life’.


Range to Reef has completed the following:

  • Documented the values of the site and link these values to the World Heritage criteria

  • Undertook a risk assessment of the current and future threats to the Atoll’s values

  • Completed a management effectiveness assessment review

  • Liaised with SIF and other relevant stakeholders

  • Prepared an outcome based management plan to ensure the protection, conservation and management of the World Heritage Site and maintain its Outstanding Universal Values


This project was completed in 2016. For further information on Aldabra or SIF go to


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