Ecoregions are defined on natural resource boundaries rather than political criteria. The aim of this book is to provide a comprehensive understanding of environmental regionalism at the international level, analyzing the concept and its evolution.

Several disciplines are mobilized to develop a model of ecoregional processes: ecology, geography, economics, and political science. The distinction between the idea of environmental region (ecoregion) and the process of clustering around environmental regions (ecoregionalization) is presented. There are approximately...