Bibliography: leaves 398-421. / xxxi, 421 leaves : ill. (chiefly col.), maps ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / The degree to which the conservation role of zoos can promote progressive environmental knowledge is debated. Generates data that zoo professionals can apply to future problem-solving and to increasing the relevance and effectiveness of zoo conservation policies for modern-day ecological problems. / Thesis (Ph.D.)--University of Adelaide, Mawson Graduate Centre for Environmental Studies, 1998