We have been working with indigenous groups in Guatemala, Belize, and southern Mexico looking at how traditional Mayan agroforestry systems could offer tools for forest restoration, and sustainable ecosystem design in Latin America. Ecosystems designed and managed through traditional ecological knowledge often map very well to core tenets of ecological engineering – 1) humans as a part of the environment rather than apart from the environment, and 2) design for the mutual benefit of humans and the environment. Some traditional designs produce agricultural products, conserve primary forest, accelerate forest growth through selective plantings, and the systems provide habitat for howler monkeys, spider monkeys and deer. We are working with indigenous Mayan partners to determine how traditional ecosystem design can assist in regional restoration and conservation efforts (e.g., the Mesoamerican Biological Corridor). We have also begun researching how lessons learned about sustainable design in Mesoamerica could be applicable in New York.