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Chapter 6: Define Assessment Unit

Higgins, Jonathan; Esselman, Rebecca

Standard 6: Develop assessments/ visions within ecologically meaningful areas adopted or adapted from existing ecoregional

Conservationists around the world use ecoregions as assessment units to conduct conservation planning because they are ecologically based and consistently globally mapped and are the appropriate scales for the types of questions being addressed by these assessments/visions.

Recommended Products

  • Digital map of assessment units.
  • Digital map of ecoregion stratification units.
  • Documentation and justification of any newly created ecoregions and/or any aggregation, separation, or boundary modification of planning units based on environmental patterns within the assessment area.

Part of the Ecoregional Assessment Toolbox -- a guidance document supporting TNC's Ecoregional Assessement approach for priority setting.