Ruiz, Diego J. The Bolivar Channel ecosystem of the Galapagos Marine Reserve : Energy flow structure and role of the keystone groups / Diego J. Ruiz and Matthias Wolff. - 2011. - 123-134 p. Inglés Subjects--Index Terms: Bolivar Channel Marine ecosystems Canal Bolívar Ecosistemas marinos Dewey Class. No.: 577.7