Interactions of social, terrestrial, and marine sub-systems in the Galapagos Islands, Ecuador.

Published in Proceedings of the National Academy of Sciences, v. 20 (51):14536-14543

Walsh, S. J., Mena, C. F.

Publication year 2016
IAI Program


IAI Project CRN3036
PDFInteractions of social, terrestrial, and marine sub-systems in the Galapagos Islands, Ecuador.pdf


Galapagos is often cited as an example of the conflicts that are emerging between resource conservation and economic development in island ecosystems, as the pressures associated with tourism threaten nature, including the iconic and emblematic species, unique terrestrial landscapes, and special marine environments. In this paper, two projects are described that rely upon dynamic systems models and agent-based models to examine human&ndashenvironment interactions. We use a theoretical context rooted in complexity theory to guide the development of our models that are linked to social&ndashecological dynamics. The goal of this paper is to describe key elements, relationships, and processes to inform and enhance our understanding of human&ndashenvironment interactions in the Galapagos Islands of Ecuador. By formalizing our knowledge of how systems operate and the manner in which key elements are linked in coupled human&ndashnatural systems, we specify rules, relationships, and rates of exchange between social and ecological features derived through statistical functions and/or functions specified in theory or practice. The processes described in our models also have practical applications in that they emphasize how political policies generate different human responses and model outcomes, many detrimental to the social&ndashecological sustainability of the Galapagos Islands.