Nature & Science

photograph of a green sea turtle hatchling
Green sea turtle hatchlings, Buck Island.

NPS photo

Buck Island Reef National Monument is most notable for its coral reef ecosystem and the small tropical island that it encircles. The Monument supports a large variety of terrestrial and marine plants and animals, including endangered and threatened species. Its biological diversity and complexity affords outstanding opportunities for approved recreational activities, public education, and scientific research. Buck Island’s elkhorn-coral barrier reef is unique within U.S. waters. The Monument contains significant evidence of thousands of years of human activity, both on the land and in the water.

underwater photograph of corals at Buck Island
Corals and fish at Buck Island Reef National Monument.

Susanna Pershern, NPS

Buck Island Reef National Monument is one of the most pristine barrier coral reef systems in the Caribbean. While not well suited for agricultural endeavors, the natural resources, especially marine and coastal fauna, have proven an irresistible attraction to people since ancient times. Buck Island draws tens of thousands of tourists a year who wish to experience first-hand the wonders of a coral reef, or just to relax and escape the noise and stresses of everyday life.

The biotic communities that currently exist on Buck Island and St. Croix have been significantly altered by humans since their arrival in the area some 6,000 years ago. These changes began with the entry of the islands' first human inhabitants, who cut down trees to build huts and villages, cleared forested areas to grow food crops, and brought non-native animals to the island. Environmental impacts resulting from human activity were greatly accelerated following the arrival of the first Europeans in the 1600s. As a result,since the 1600s over 50 species of animals have gone extinct across the Caribbean, including six species of birds, thirty-four mammals, and ten reptiles. Nearly all these extinctions were due to the destruction of natural habitat and the introduction of new predatory species, such dogs, cats, rats, and the mongoose (Herpertes javanicus auropunctatus).
Picture of the St Croix Ground Lizard on Buck Island.

Learn about the animals the live on and around Buck Island

Photo of the Sandy Point Orchid on Buck Island.

Learn about the plant life present on Buck Island.

Photo of coral reefs and fish at Buck Island
Natural Features and Ecosystems

Learn about the ecosystems and other natural features of Buck Island

Last updated: April 6, 2018

Park footer

Contact Info

Mailing Address:

2100 Church St. #100
Christiansted, St. Croix, VI 00820


(340) 773.1460

Contact Us