Critical Linkages - TNC presentation to ILC

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Critical Linkages - TNC presentation to ILC

  1. 1. Critical Linkages Proactive transportation and land protection planning in MA Interagency Lands Committee, January 14, 2009 • CAPS (Conservation Assessment & Prioritization System) • UMass Landscape Ecology Program – Kevin McGarigal, Scott Jackson, Brad Compton, Kasey Raleigh – “Critical Linkages” (Connectivity) – Index of Ecological Integrity (Resiliency) • Applications – Land Protection Planning – Connectivity Restoration – Climate Adaptation
  2. 2. Ecological Integrity …the long-term capability of the ecological community to sustain its composition, structure and function and thus its resiliency to stress
  3. 3. UMass CAPS Index of Ecological Integrity Land cover is mapped based on several GIS data layers Roads DEP Wetlands Land Use Land Cover Map
  4. 4. Integrity The CAPS Analysis metrics Land cover GIS data map Ecological Index of Ecological setting Integrity
  5. 5. CAPS Integrity Metrics Stressor metrics Development & Roads Biotic alterations Habitat loss Domestic predators Watershed habitat loss Edge predators Wetland buffer insults Non-native invasive plants Road traffic intensity Non-native invasive earthworms Mowing & plowing intensity Hydrological alterations Microclimate alterations Imperviousness Percent impounded Pollution Upstream road crossings Road salt intensity Dam intensity Sedimentation Water withdrawals Nutrient loading Point-source pollution Resiliency metrics Emissions intensity Connectedness Similarity
  6. 6. Road Intensity
  7. 7. Development Intensity
  8. 8. Edge Effects
  9. 9. Similarity
  10. 10. Connectedness
  11. 11. Data and Town Maps http://www.umass.edu/landeco/research/ caps/data/dep/dep.html#maps
  12. 12. A Comprehensive Biodiversity Assessment Protecting What we What we = + biodiversity know don’t know UMass BioMap PListed element •PHidden biodiversity • Listed element Common biodiversity occurrences (fine filter) PAreas not yet occurrences (coarse filter) • Conservation planning • adequately inventoried PConservation planning Hidden biodiversity for listed species for listed species • Areas not adequately inventoried
  13. 13. “Critical Linkages” • 3,000,000 forest acres
  14. 14. “Critical Linkages” • 3,000,000 forest acres • 35,000 mi. of public roads, 30,000 road stream crossings + 3,000 dams – Habitat fragmentation – Other challenges: • Forests: Habitat conversion, pests and pathogens, climate change, atmospheric deposition • Rivers: Water withdrawal, sedimentation, climate change, pollution
  15. 15. Large Scale Forest Conservation N IO T A IZ L TI LANDSCAPE (MATRIX) U G IN S EA BUFFER R C IN TY IVI CORE CT NE N Y CO VIT TI C NE N N CO IO T C TE RO P G IN S EA R C IN
  16. 16. “Critical Linkages”: Connectivity questions: • To restore and maintain habitat connectivity – What road segments are most important to restore? – Which areas are most important to protect?
  17. 17. Critical Linkages 2008-2009 Phase 1: Local Connectivity (Connectedness)
  18. 18. Critical Linkages 2008-2009 Phase 1: Local Connectivity (Connectedness) • Connectedness: connectivity of a focal unit (grid cell) with its surrounding landscape context – to what extent are ecological flows (e.g., dispersal) from that unit impeded or facilitated by the landscape. • Structural and Functional: Landscape resistance and distance are parameterized based on multiple species
  19. 19. CAPS Integrity Metrics: Connectedness highly constrained point highly connected point
  20. 20. Critical Linkages Phase 1: Local Connectivity • Identify priorities for protection and restoration of local connectivity – Statewide analysis – Automated scenario testing
  21. 21. Critical Linkages 2008-2009 Phase 1: Local Connectivity •
  22. 22. Critical Linkages 2009-2010 Phase 2: Regional Connectivity • A network of important connections among protected areas and other areas of high ecological integrity (nodes) – Graph Matrix Model under development – Random low cost paths
  23. 23. Critical Linkages 2009-2011 Potential Regional Connectivity
  24. 24. Applications: Protection Priorities • Middlefield Connectedness • Other data – POS – BioMap – Etc. Protection Priorities For example only—not actual priorities
  25. 25. Protection Applications: Priorities Protection Priorities • Middlefield IEI • Other data – POS – BioMap – Etc. For example only—not actual priorities
  26. 26. Applications: Restoration Priorities • Transportation Planning and Restoration – Culverts, bridges, wildlife crossings
  27. 27. • Resilient habitats for rare and Applications common species, and connectivity Climate Change Adaptation among them Potential Regional Connectivity Resilience • The capacity for renewal in a dynamic environment – Gunderson 2000 • An ability to resist and recover from change or disturbance
  28. 28. Critical Linkages • “Critical Linkages” (Connectivity) • Index of Ecological Integrity (Resiliency) • Applications – Land Protection Planning – Connectivity Restoration – Climate Adaptation • Questions Thank You

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