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Cesar Guerrero Avila, Executive Director

Cesar Guerrero

Is a scientist by formation and a naturalist by conviction. Cesar has an ample experience in issues related to the sustainable use of fisheries in Baja California and has carried out diverse studies in ecology, biology and conservation of key species such as white shark and yellowfin jack. He has collaborated closely with research institutions such as the Centro de Investigacion Cientifica y de Educacion Superior (CICESE) and the National Oceanic and Atmospheric Administration (NOAA). Cesar holds a master of science in marine ecology from CICESE and a bachelor's degree in biology from the Universidad Nacional Autónoma de México (UNAM).

Sula Vanderplank, Science Advisor

Sula Vanderplank

Sula joins Terra to study the unique plants that grow on shell middens left behind by the indigenous peoples of the region.

Her current research is focused around the phytogeography of Baja California, with an emphasis on plant distributions along the Pacific coast of the state of Baja California and the adjacent islands, where the California Floristic Province meets the Vizcaino desert to the south.

Sula feels fortunate to be part of a project to assemble an inventory of all the rare and endemic plants of the California Floristic Province portion of Baja California in collaboration with Rancho Santa Ana Botanic Garden, Universidad Autónoma de Baja California, Santa Barbara Botanic Garden, San Diego County Planning, San Diego Natural History Museum, and Colegio de la Frontera Norte.

Sula earned a Batchelor's degree in Botany from the University of Reading (UK) and a Master of Science degree in Botany from Claremont Graduate University at Rancho Santa Ana Botanic Garden, California (USA).


Dan Silver, President, Finance, Executive, Development

Dan Silver

A physician by training, Dan was born in Los Angeles and attended the University of California at Berkeley and Columbia University College of Physicians and Surgeons. In 1989, Dan led the effort to preserve the Santa Rosa Plateau in Riverside County. In 1991, after practicing internal medicine for 10 years, he retired to work full time on environmental issues. Dan is currently the Chief Executive Officer at Endangered Habitats League. Since its inception in 1991, Dan saw the organization emerge as a regional leader in conservation and growth management.. In 2004, the American Planning Association California Chapter honored Dan with its Outstanding Distinguished Leadership: Layperson Award.

Alan Harper, PhD, Vice President, Executive Committee, Development Committee

Alan Harper

Founder and past board vice-president, is a partner in AppMagic, a software development company. He is a conservationist active in California and Baja California. As US Co-chair of pro esteros he helped develop the Baja California Wetlands Inventory and coordinated the successful effort to prevent an American developer from building an environmentally destructive housing development at Bahía San Quintín. He sits on the boards of Audubon California, California League of Conservation Voters, the California Institute for Biodiversity, and Pro Peninsula. He is currently embarking on a project to photograph the matorral costero of Baja California.

Horacio de la Cueva, PhD, Secretary, Executive Committee

Horacio de la Cueva

Founder and past board president, is Investigador Titular at the Ecology Department of the Centro de Investigación Científica y de Educación Superior de Ensenada (CICESE) in Ensenada, Baja California, where teaches ecology and evolutionary biology. He also teaches statistics and directs research in a joint masters program in environmental administration with COLEF, a humanities post-graduate institution focused on border issues. He currently directs the national committee for the reintroduction of the California Condor to Mexico; he is a founding member and education chair for the national committee on pinniped conservation; he is the CICESE representative on the Wildlife, bighorn sheep, and Sierra San Pedro Mártir park state committees.

C.P.A. Marco Isaac Navarro Steck, Treasurer, Finance Committee

Marco Isaac Navarro

Marco is a member of Corporativo Navarro, SC, associated firm in the city of Ensenada, BC, where he works in the practice of audit and tax. He is a Fellow of the College of Chartered Accountants of Ensenada, BC, where he has been Vice-Chairman and member of the Fiscal Commission. He has been lecturer in several technical training courses in Business Forums, Public Accountants Associations and Universities.

Jerre Ann Stallcup, Board Member, Executive Committee

Jerre Stallcup

Jerre has been a respected and instrumental part of the Southern California conservation community for over 20 years, with experience in all aspects of landscape-scale conservation planning, implementation, monitoring, and management of natural resources in the U.S., Europe, and Mexico. She is effective in developing and orchestrating partnerships among the academic community, government agencies, non-governmental organizations (NGOs), and private landowners to leverage funds and information for achieving conservation goals. Jerre has been with the Conservation Biology Institute for 10 years, working in California and Baja California. Jerre was originally inspired by her biologist parents, themselves both naturalists, and extensive camping trips in the Southwestern United States. Jerre received a B.S. in Biology from Stanford University and a M.A. in Zoology from the University of South Florida.

Eduardo Palacios, PhD, Board Member

Eduardo Palacios

Founder and board member, is on the faculty of Centro de Investigación Científica y de Educación Superior de Ensenada (CICESE) in La Paz. His doctoral research at the University of California, Davis, examined the relation of nutrition and gender to growth and development of Brown Pelicans in the Sea of Cortez. Previously, he developed the Baja California Wetlands Inventory and associated web site for pro esteros. An avid birder, Eduardo has been advising conservation organizations and surveying the shore birds of Baja California for over 10 years.

Bart O'Brien, Board member

Barth Obrien

Is Director of Special Projects at Rancho Santa Ana Botanic Garden (RSABG) in Claremont, CA, an educational institution dedicated to research, conservation, and horticulture of California native plants. Bart is also editor of Fremontia, the journal of the California Native Plant Society (CNPS). A fifth generation Californian, he is an authority on the native flora of the state and of northern Baja California, Mexico and is an accomplished collector, grower, photographer, lecturer, and author. He is co-author of two books: the award winning California Native Plants for the Garden; and the bilingual Care & Maintenance of Southern California Native Plant Gardens – Cuidado y mantenimiento de jardines de plantas nativas del sur de California. O’Brien was listed as one of “The 100 Most Powerful People in Southern California” by the editorial staff of the Los Angeles Times/West Magazine (Aug. 13, 2006). He is currently leading the rare, endangered, and endemic vascular plants of northwestern Baja California, Mexico project.


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