Roy A. Rappaport was responsible for bringing ecology and structural functionalism together. Rappaport defined and was included in a paradigm called neofunctionalism (see Principal Concepts). He saw culture as a function of the ecosystem. The carrying capacity (see Principal Concepts) and energy expenditure are central themes in Rappaport's studies, conducted in New Guinea. He completed the first systematic study of ritual, religion, and ecology, and this study is characterized as synchronic (see Principal Concepts) and functionalist. The scientific revolution, functionalism in anthropology, and new ecology are the three main influences upon Rappaport. Furthermore, like Steward and Harris, he was more interested in the infrastructural aspects of society, similar to Steward. Rappaport was the first scientist to successfully reconcile ecological sciences and cybernetics with functionalism in anthropology (Balée 1996) Roy A Rappaport was Professor of Anthropology at the University of Michigan and president of the American Anthropological Association