John G. Geer
In Defense of Negativity
Attack Ads in Presidential Campaigns
William S. Alverson is a conservation ecologist and botanist; Corine Vriesendorp is rapid inventories and conservation tools director; Álvaro del Campo is a conservation ecologist and rapid inventories coordinator; Debra K. Moskovits is senior vice president; and Doug Stotz is a conservation ecologist and ornithologist, all with Environment, Culture, and Conservation at the Field Museum, Chicago. Miryan García Donayre is the director of planning for the Protected Natural Areas Division of the Instituto Nacional de Recursos Naturales in Lima. Luis A. Borbor L. is the director of the Reserva de Producción Faunística Cuyabeno in Ecuador.