The Ecological Systems Laboratory promotes formal exposure to systems analysis and simulation as an integral part of the training of professionals and academicians involved in ecological research or natural resource management. Systems analysis refers both to a general problem-solving philosophy and to a collection of quantitative techniques, including simulation, developed specifically to address problems related to the functioning of complex systems. Workshops on the use of systems analysis and simulation in ecology and natural resource management which are cosponsored by WFSC, the International Society for Ecological Modeling, and a host institution and are offered in either English or Spanish.