North Cascades Ecoregional Assessment: Terrestrial Conservation Areas by Relative Importance

Feb 28, 2012
Uploaded by Pierre Iachetti
Ecoregional assessments provide a regional scale, biodiversity-based context forimplementing conservation efforts. The intent of the assessments is to create a sharedvision for agencies and other organizations at the regional, state and local levels to formpartnerships and ensure efficient allocation of conservation resources. The assessments identify a portfolio of sites for conservation action with a goal of protecting representativebiodiversity and ecologically significant populations. These assessments are the result ofrigorous analysis, incorporating expert review, and are the most comprehensive and currentefforts that support spatially explicit priority setting at an ecoregional scale. Biodiversityconservation in the ecoregion will attain its fullest potential if all conservationorganizations coordinate their strategies to protect and restore biodiversity according to thepriorities identified in this process.

The North Cascades and Pacific Ranges ecoregional assessment resulted in the selection of341 conservation targets, including 152 terrestrial plant and animal species, 132 freshwaterspecies targets, and 57 ecological system targets. These system targets are the majorecological systems that make up the terrestrial and freshwater environments.

This assessment resulted in a series of products useful to those involved in the conservationof biodiversity in the North Cascades and Pacific Ranges Ecoregion. These products can beused alone, in conjunction with one another, or with other information to enhance on-thegroundconservation and communication about biodiversity values in the ecoregion. Themain products developed are:
  • Terrestrial and freshwater ecological systems classifications.
  • Terrestrial and freshwater conservation portfolios, showing the most important and suitable areas for conservation of ecoregional terrestrial and freshwaterbiodiversity, respectively. A summary of known target occurrences, land cover, land use, etc. is provided for each PCA along with an illustration of relative priority based on biodiversity value and suitability for conservation.
  • Irreplaceability maps showing the relative conservation value of all places in the ecoregion.
  • Overlaid terrestrial and freshwater portfolios, showing the area of overlap between the two portfolios.
  • Three scenarios for biodiversity conservation, representing different levels of risk.
Data Provided By:
Nature Conservancy of Canada 
The nature Conservancy
The Department of Fish and Wildlife

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Iachetti, P., J. Floberg, G. Wilhere, K. Ciruna, D.Markovic, J. Lewis, M. Heiner, G. Kittel, R. Crawford,S. Farone, S. Ford, M. Goering, D. Nicolson, S. Tyler,and P. Skidmore. 2006. North Cascades and PacificRanges Ecoregional Assessment, Volume 1 - Report.Prepared by the Nature Conservancy of Canada, TheNature Conservancy of Washington, and the WashingtonDepartment of Fish and Wildlife with support from theBritish Columbia Conservation Data Centre, WashingtonDepartment of Natural Resources Natural HeritageProgram, and NatureServe. Nature Conservancy ofCanada, Victoria, BC.
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About the Uploader

Pierre Iachetti
Research Scientist with University of Victoria, Energy Systems & Sustainable Cities Group, Civil Engineering Department

Pierre Iachetti has spent his 20-year professional career working with communities, academia, governments, and not-for-profits on conserving biodiversity, adapting to and mitigating climate change, and using economic and markets tools to drive social change. Pierre is focused on social innovation...