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Seabird Conservation Biology and Feeding Ecology at Alcatraz Island:
Project Start Date: 1995
 NEW! ABC News Feature: Alcatraz Wildlife Affected by Oil Spill (6/30/08)
Background:
Alcatraz Island, in the center of San Francisco Bay, has become a breeding site for a number of marine bird species. It is one of few estuarine breeding sites for many of these species. The proximity of Alcatraz to a densely-populated urban area and its status as a heavily-visited national park make disturbance to wildlife a key concern on the island.
Objectives:
To study the population size, distribution, and breeding and feeding ecology of seabirds using Alcatraz Island. Research focuses on determining the extent and effects of human disturbance such as tourism, boating near the shoreline (kayaks, fisherman, and tour boats), and aircraft overflights (air tour operations), on breeding seabirds. In addition, dredging the San Francisco Bay may also affect nesting birds by mobilizing contaminants and destroying essential foraging habitat.
Focal Species:
Brandt's and Pelagic Cormorant, Western & California Gull, Pigeon Guillemot, Black Oystercatcher
Habitat Type:
Estuarine island
Partners:
Golden Gate National Recreation Area (National Park Service)
Contact:
Julie Thayer
Sara Acosta
Upcoming Events:
Related Links:
Islands of San Francisco Bay Book 2006
Alcatraz Island National Park Service Page
Articles/Publications:
Evidence of double-clutching by Brandt's Cormorants on Alcatraz Island, California
Marine bird breeding population trends in California: Ups and downs over four decades
An urban success story: breeding seabirds on Alcatraz Island, 1990-2002
Volunteer Opportunities:
Education Materials:
Alcatraz Seabird ID card
Alcatraz Wildlife Protection Flyer (please feel free to post in local marinas, shops, or marine user group clubs)
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