This study was supported by the FONDECYT -Peru and Directorate General for Development Cooperation of the Belgian Government through the framework agreement with the Institute of Tropical Medicine of Antwerp and through the Flemish Interuniversity Council (VLIR).

This research was funded by the Consultative Group for International Agricultural Research (CGIAR) Research Program on Climate Change, Agriculture and Food Security (CCAFS). H. Heidinger acknowledges CONCYTEC (Consejo Nacional de Ciencia, Tecnología e Innovación Tecnológica) for partially funding her doctoral studies at UCSB. The authors would like to acknowledge the anonymous reviewers for their constructive comments