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T C Whitmore: Introduction J Haffer: Quaternary history of tropical America K S Brown Jr & G T Prance: Soils and vegetation G T Prance: Biogeography of neotropical plants K S Brown Jr: Biogeography and evolution of neotropical butterflies J Haffer: Biogeography of neotropical birds B J Meggers: The early history of man in Amazonia K S Brown Jr: Conclusions, synthesis, and alternative hypotheses References Index
Markgraf et al. (Thu,) studied this question.