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Richard Thompson and Nancy Densmore January 2007

2005 Stand Level Biodiversity Final Report “Proof of Concept”. Richard Thompson and Nancy Densmore January 2007. Question?.

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Richard Thompson and Nancy Densmore January 2007

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  1. 2005 Stand Level Biodiversity Final Report“Proof of Concept” Richard Thompson and NancyDensmore January 2007

  2. Question? Is the structural retention (WT and CWD) left associated with cutblocks adequately maintaining habitat for dependent species at the site and across the landscape now and in the future?

  3. Stand Level Biodiversity What are we measuring? • % area retained • Tree size • Wildlife tree class • tree species • CWD Size • CWD decay class • Ecological Anchors – e.g. large hollow trees, bear dens • Windthrow • Invasive Species

  4. How are we measuring it? Standardized protocol Plot base and overview Randomized design Quality assurance Protocol Available on the Web: http://www.for.gov.bc.ca/hfp/frep/values/biodiversity.htm

  5. 2005 Provincial Sample Summary of retention levels (hectares) on 201 sampled cutblocks

  6. Average Indicator Value by BEC

  7. Distribution of baseline indicator data

  8. Retained species abundance SBS blocks

  9. WT class 3 or higher, dbh >30 cm and height >10m for 72 SBS blocks

  10. Comparison of Data on Large Dead Tree Abundance for Kolmogorov-Smirnov test

  11. CWD Patch/Harvest Volume

  12. CWD Patch/Harvest Length

  13. Categories of windthrow 70 SBS cutblocks

  14. Patch location 69 SBS Blocks :

  15. Summary

  16. Where to Next? Data sets continue to be built Data Management Systems being built Work to build baselines Work to put stand structure into landscape

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