St. Helena & Ascension Islands (AT18) | One Earth

St. Helena & Ascension Islands bioregion

The bioregion’s land area is provided in units of 1,000 hectares. The protection goal is the combined Global Safety Net (GSN1) areas for the component ecoregions. The protection level indicates the percentage of the GSN goal that is currently protected on a scale of 0-10. N/A means data is not available at this time.

  • 22
    Total Land Area (1000 ha)
  • 2
    Number of Ecoregions
  • 100%
    Protection Target
  • 3
    Protection Level

The St. Helena & Ascension bioregion, located in the equatorial Afrotropics, comprises a grouping of small volcanic islands in the middle of the Atlantic Ocean more than 800 nautical miles from the Gulf of Guinea. With two ecoregions -- St. Helena Scrub and Woodlands [1], Ascension Scrub and Grasslands [2] -- it has a land area of approximately 22,000 hectares. The surrounding waters are rich with biodiversity and serve as a critical stopping place for migratory species, and it has one of the largest nesting populations of green sea turtles. 

The St. Helena & Ascension Islands bioregion is part of the Sub-Equatorial Afrotropics subrealm and is made up of two ecoregions: St. Helena Scrub and Woodlands [1], Ascension Scrub and Grasslands [2].

One Earth is dedicated to mobilizing philanthropic capital to protect the ecosystems and peoples of the Afrotropics. Visit the Project Marketplace ​to explore projects in this realm that need your support. Learn more about each of the ​St. Helena & Ascension Islands ecoregions below.

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