Guadalupe Island

December 2000

Construction of a goat exclosure fence to protect fragile plant communities

Guadalupe Island is a remote island 150 miles off the Pacific coast of Baja California. The island has an exceptional concentration of endemic species, including 34 endemic plants. This 160-square-kilometer island, one of Mexico’s largest and most biologically important, is protected as a Special Biosphere Reserve. It is, however, a classic “paper park,” with little actual management or protection.

Goats, which were introduced to the island 150 years ago, have devastated Guadalupe’s plant species. After a century and a half of grazing, there have been five global extinctions and 15 local extinctions of plant species on Guadalupe. Unless immediate action is taken, further degradation of the island and the disappearance of more plant species are certain.

Seacology has provided funding to the Island Conservation & Ecology Group to build ten fenced exclosures to keep goats out of the most sensitive areas of Guadalupe Island. While demarcating the protected areas, local farmers and biologists identified two endemic plant species thought to be extinct.

Full or partial funding for this project provided by
Project Updates
In 2004, the Mexican governmental research agency Instituto Nacional de Ecología, conservation group Grupo de Ecología y Conservación de Islas, and other organizations led an effort to remove...
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