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Pierce County GAP Application Pilot Project

Pierce County GAP Application Pilot Project. University of Washington Department of Urban Design and Planning Remote Sensing Applications Laboratory May 19, 1999.

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Pierce County GAP Application Pilot Project

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  1. Pierce County GAP Application Pilot Project University of Washington Department of Urban Design and Planning Remote Sensing Applications Laboratory May 19, 1999

  2. “Biodiversity is the variety of life and its processes. It includes the variety of living organisms, the genetic differences among them, the communities and ecosystems in which they occur, and the ecological and evolutionary processes that keep them functioning, yet ever changing and adapting.” Reed F. Noss and Allen Y. Cooperrider Saving Nature’s Legacy (1994)

  3. Purpose To review, validate, and augment the Pierce County Open Space and Greenbelt Corridor Map by considering biodiversity protection.

  4. Approach A coarse-scale landscape analysis • Use Washington Gap models linking land cover to vertebrate species distribution.

  5. Approach A coarse-scale landscape analysis • Use Washington Gap models linking land cover to vertebrate species distribution. • Assess biodiversity potential using species richness and representation information.

  6. Approach A coarse-scale landscape analysis • Use Washington Gap models linking land cover to vertebrate species distribution. • Assess biodiversity potential using species richness and representation information. • Identify a “Biodiversity Network” of “biodiversity management areas (BMAs)” and “BMA Connections.”

  7. Process WAGAP Land Cover Map Roads Landsat TM NWI Land Cover Map

  8. Process WAGAP Land Cover Map Roads Landsat TM NWI Land Cover Map Range Limits Habitat Models Vertebrate Distributions

  9. Process WAGAP Land Cover Map Roads Landsat TM NWI Land Cover Map Range Limits Habitat Models Vertebrate Distributions “Restrictions” - zoning/future land use, parcel size, roads WDFW StreamNet PHS Polygons and Heritage Points Biodiversity Management Areas and BMA Connections

  10. Statistical Analysis 29% 59% 44% 45%

  11. Gap Stewardship Status 1 20% 27% 45% (i.e., Mt. Rainier National Park) Status 2 <1% <1% 85% (i.e., Nisqually National Wildlife Refuge) Status 3 13% 13% 35% (i.e., U.S. Forest Service lands) Status 4 66% 59% 30% (i.e., private land) % of Biodiversity Network % Gap Status in Biodiversity Network % County in Gap Status

  12. Gap Vegetation Zones Woodland/Prairie Mosaic 17% 61% Puget Sound Douglas-fir 20% 32% Western Hemlock 29% 4% Silver Fir 10% 23% Mountain Hemlock 5% 27% Alpine/Parkland 18% 77% % vegetation zone in natural cover in Biodiversity Network % of Biodiversity Network

  13. Results  Overlap occurs between both the County open space plans and the Biodiversity Network.  Biodiversity Network complements the County open space plan by rounding out countywide coverage of important habitat types.  A significant portion of the Biodiversity Network is located outside but adjacent to Pierce County indicating the need for cooperative biodiversity planning with neighboring counties. Similarly, the Biodiversity Network includes large areas under the jurisdiction of the federal government and represents opportunities for Pierce County to advocate for improved management of those areas.

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