San Diego Natural History Museum--Your Nature ConnectionSDNHM Biodiversity Research Center of the Californias

Expedition 2000 to Isla Guadalupe
A Binational Multidisciplinary Expedition

Scientists from the Museum's Biodiversity Research Center of the Californias embarked on a binational multidisciplinary expedition to Isla Guadalupe, off the coast of Baja California, on 3 June 2000. The major purpose of this project is to survey and assess the current status of the island's flora and fauna, which have been severely disturbed by introduced non-native goats, dogs, cats, and rodents. By landing a helicopter on the previously unexplored sheer-rock islet off the southern coast, Islote Adentro, the researchers will be able to compare pristine, undisturbed conditions with those of the main island.

Another important focus of this expedition is the search for the Guadalupe Storm-Petrel (Oceanodroma macrodactyla), an elusive nocturnal sea bird thought to be extinct. There is reason to believe that this bird, not seen since 1912, may indeed still be extant. Researchers from the Museum, Mexican universities, conservation organizations, and governmental agencies, representing disciplines of ornithology, botany, entomology, herpetology, paleontology, and ecology will participate in this expedition. Partial funding from the National Science Foundation has been awarded, and additional support is being sought.

Updates from the Field

Project Overview

Isla Guadalupe

Research Disciplines


Unexplored Islote Adentro, photo by William T. Everett © 1998 Guadalupe Island above the cloud layer, photo by Thomas A. Oberbauer © 1998 View from south end of Guadalupe Island, Thomas A. Oberbauer © 1998 Pines of towering cliffs, photo by Thomas A. Oberbauer © 1998

From left: (1) Islote Adentro. Area of extensive vegetation can be seen on the summit. Sheer 600' high walls have prevented any previous ascent of this rock. Photo by: William T. Everett © 1998. (2) The high central plateau visible above the persistent cloud layer. Photo by: Thomas A. Oberbauer © 1998. (3) View from the extreme southern end of the island, looking north along the western shoreline. Endemic Hemizonia greeneana ssp. greeneana can be seen in the foreground. Photo by: Thomas A. Oberbauer © 1998. (4) Pines growing on the towering cliffs above the ocean. Photo by: Thomas A. Oberbauer © 1998. All rights reserved.

This material is based upon work supported by the National Science Foundation under Grant No. 0074462. Any opinions, findings and conclusions or recomendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation (NSF).

Introduction | Project Overview | Participants | Isla Guadalupe
Ornithology | Botany | Entomology | Herpetology