Corine Vriesendorp is a conservation ecologist with the Environmental and Conservation Programs at the Field Museum, Chicago. N. Pitman is science director at the Amazon Conservation Association in Washington, D.C. J. I. Rojas Moscoso is a freelance biologist in Tambopata, Peru. B. A. Pawlak works at the Field Museum. L. Rivera Chávez is director of the Centro para el Desarrollo del Indígena Amazónico (CEDIA) in Peru. L. Calixto Méndez is a lead anthropologist at CEDIA. M. Vela Collantes is the current leader of the Matsés native community, and P. Fasabi Rimachi is a member of the Matsés community.