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Landscape Integrity Jamie Trammell-AKNHP

Landscape Integrity Jamie Trammell-AKNHP. Landscape Integrity. Landscape Integrity dataset for current, near-term, and long-term Landscape Condition Model (LCM) Large Intact Blocks (LIB) Conservation Element status for current, near-term, and long-term

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Landscape Integrity Jamie Trammell-AKNHP

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  1. Landscape Integrity Jamie Trammell-AKNHP

  2. Landscape Integrity • Landscape Integrity dataset for current, near-term, and long-term • Landscape Condition Model (LCM) • Large Intact Blocks (LIB) • Conservation Element status for current, near-term, and long-term • Ecological Intactness for current, near-term, and long-term

  3. Landscape Condition Model NatureServe (Comer and Hak) • Identify any/all human footprint • Assign impact factors to each footprint type • Assign distance decay values to each impact • Sum total impact over landscape

  4. Approach to LCM

  5. Approach to LCM-YKL

  6. YKL LCM Data

  7. YKL LCM Data

  8. YKL LCM Data

  9. YKL LCM Data

  10. Landscape Condition Model Used Euclidean Distance to calculate distance decay • Create a gradient increasing in values as you move toward the end of the buffer • Multiply by impact factor

  11. YKL LCM Data

  12. YKL LCM Data

  13. YKL LCM Data

  14. Landscape Condition Model Combined all individual models into final LCM • Merged the datasets using MIN rules • Originally proposed a fuzzy sum, but doesn’t make sense to reduce (by averaging) the impact of the high impact footprints

  15. Current Landscape Condition As expected, most of the YKL is relatively pristine Intense, localized impact Spatial resolution (60 m)

  16. Current Landscape Condition As expected, most of the YKL is relatively pristine Intense, localized impact Spatial resolution (60 m)

  17. Current Landscape Condition As expected, most of the YKL is relatively pristine Intense, localized impact Spatial resolution (60 m)

  18. Current Landscape Condition As expected, most of the YKL is relatively pristine Intense, localized impact Spatial resolution (60 m)

  19. Current Landscape Condition As expected, most of the YKL is relatively pristine Intense, localized impact Spatial resolution (60 m)

  20. Current Landscape Integrity Using the raw LCM, we can segment into Large Intact Blocks 98.4% of the ecoregion is completely intact However, this scale is not appropriate (very likely we have missed impacts)

  21. Current Landscape Condition Summarized by 10-digit HUC Overall condition still very high Some patterns begin to emerge

  22. Current Landscape Integrity If we take the top 4 of the 5 quintiles, we see a partially fragmented landscape 83% of the ecoregion (by HUC) is completely intact All are Large Intact Blocks > 50,000 acres

  23. Current Landscape Integrity If we look at HUCs where there is no human footprint whatsoever, we get an even more fragmented landscape 49% of the ecoregion (by HUCs) is completely intact

  24. Current Landscape Integrity If we look at HUCs where there is no human footprint whatsoever, we get an even more fragmented landscape 49% of the ecoregion (by HUCs) is completely intact All are Large Intact Blocks > 50,000 acres

  25. Next Steps Assess the status of each CE according to the LCM • Using the 10-digit HUC summarized LCM • First done for current time period, then near and long-term time periods

  26. Current CE Status We will be examining the distribution of each CE and assessing it’s habitat status according to the Landscape Integrity

  27. Summary • Landscape condition of the YKL is very good • When summarized at the 10-digit HUC (5th level watershed) there are some clear patterns that can be used to infer overall intactness • Level of landscape integrity an important management question • Questions or Comments? • Jamie Trammell • 786-4865 • ejtrammell@uaa.alaska.edu

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