Environmental Management

, Volume 34, Supplement 1, pp S14–S26 | Cite as

Identifying Ecoregion Boundaries

  • Robert G. BaileyEmail author


This article summarizes the rationale I used in identifying ecoregion boundaries on maps of the United States, North America, and the world’s continents, published from 1976 to 1998. The geographic reasoning used in drawing boundaries involves 20 principles, which are presented to stimulate discussion and further understanding. Brief background and references are provided for the principles.


Ecosystem geography Ecoregions Mapping Boundaries United States North America World 

Copyright information

© Springer Science+Business Media, Inc. 2005

Authors and Affiliations

  1. 1.USDA Forest ServiceInventory and Monitoring InstituteFort CollinsUSA

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