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Identifying ecoregion boundaries.

Robert G Bailey1

  • 1USDA Forest Service, Inventory and Monitoring Institute, 2150 Centre Avenue, Building A, Fort Collins, Colorado 80526, USA. rgbailey@fs.fed.us

Environmental Management
|May 11, 2005
PubMed
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This article details 20 principles for identifying ecological region (ecoregion) boundaries on global maps. It explains the geographic reasoning behind these boundary delineations for better scientific understanding.

Area of Science:

  • Ecology
  • Biogeography
  • Environmental Science

Background:

  • Ecoregion mapping is crucial for understanding global biodiversity patterns.
  • Previous ecoregion boundary identification methods lacked standardized principles.
  • Published maps from 1976-1998 provide a historical context for ecoregion delineation.

Purpose of the Study:

  • To present a comprehensive set of 20 principles for identifying ecoregion boundaries.
  • To explain the geographic rationale behind established ecoregion divisions.
  • To foster discussion and advance the understanding of ecoregion concepts.

Main Methods:

  • Review and synthesis of geographic reasoning principles used in ecoregion boundary identification.
  • Analysis of ecoregion maps of the United States, North America, and global continents (1976-1998).

Related Experiment Videos

  • Presentation of 20 core principles guiding ecoregion boundary demarcation.
  • Main Results:

    • A structured framework of 20 principles for ecoregion boundary identification is proposed.
    • The principles cover diverse geographic and ecological factors influencing boundary placement.
    • The rationale behind historical ecoregion maps is clarified.

    Conclusions:

    • The presented principles offer a robust foundation for consistent and reproducible ecoregion mapping.
    • Further discussion and application of these principles are encouraged for advancing ecological regionalization.
    • Understanding the rationale behind ecoregion boundaries is key to effective conservation and environmental management.