Part I Introduction.- The Values and Challenges of Long-Term Field Studies.- Part II Madagascar.- Berenty Reserve, Madagascar: A Long Time in a Small Space.- Beza Mahafaly Special Reserve: Long-Term Research on Lemurs in Southwestern Madagascar.- Long-Term Lemur Research at Centre Valbio, Ranomafana National Park, Madagascar.- A 15-Year Perspective on the Social Organization and Life History of Sifaka in Kirindy Forest.- Part III America.- The Northern Muriqui (Brachyteles hypoxanthus): Lessons on Behavioral Plasticity and Population Dynamics from a Critically Endangered Species.-...

Part I Introduction.- The Values and Challenges of Long-Term Field Studies.- Part II Madagascar.- Berenty Reserve, Madagascar: A Long Time in a Small Space.- Beza Mahafaly Special Reserve: Long-Term Research on Lemurs in Southwestern Madagascar.- Long-Term Lemur Research at Centre Valbio, Ranomafana National Park, Madagascar.- A 15-Year Perspective on the Social Organization and Life History of Sifaka in Kirindy Forest.- Part III America.- The Northern Muriqui (Brachyteles hypoxanthus): Lessons on Behavioral Plasticity and Population Dynamics from a Critically Endangered Species.-...