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Forest Management & Lynx Habitat Trends Erin Simons-Legaard - PowerPoint PPT Presentation

Forest Management & Lynx Habitat Trends Erin Simons-Legaard Collaborators: Kasey Legaard, Dan Harrison, Mark McCollough, Aaron Weiskittel, Caitlin Andrews Northern Appalachian/Acadian Ecoregion Hoving et al. 2003 Eastern spruce budworm (


  1. Forest Management & Lynx Habitat Trends Erin Simons-Legaard Collaborators: Kasey Legaard, Dan Harrison, Mark McCollough, Aaron Weiskittel, Caitlin Andrews

  2. Northern Appalachian/Acadian Ecoregion

  3. Hoving et al. 2003

  4. Eastern spruce budworm ( Choristoneura fumiferana Clem.)

  5. State-run spray protection program, treating several million acres annually at its peak Proposed spray blocks, 1979 Irland et al. 1988

  6. Severe mortality - 20-25 million cords of spruce and fir Approx. 1500 ac salvage killed harvest block Salvage logging by commercial clearcut

  7. Maine Forest Practices Act, 1989 - First legal definition of a clearcut - Regulation of clearcut size, configuration, regeneration The Forestry Rules of Maine, 2014; MFS

  8. Maine Forest Practices Act, 1989 1970-80s budworm Forest Practices Act salvage clearcuts category 1 clearcuts

  9. Annual statewide harvest

  10. Ownership change Lilliholm et al. 2010

  11. Ownership change

  12. Ownership change

  13. Conservation easements

  14. Landowner change history, 1994-2007

  15. Forest disturbance, age, composition mapping Landsat Thematic Mapper: 2010 2007 2004 2-3 year intervals 2001 - stand-replacing and 1998 partial canopy disturbance 1995 - disturbance intensity 1993 (% basal area removed) 1991 1988 1985 Landsat Multispectral Scanner: 1985 1982 2-4 year intervals 1978 - stand-replacing 1975 disturbance 1973

  16. Forest disturbance, age, composition mapping 1985 Landsat: 1988 Landsat: Harvest, 1985-1988

  17. Forest disturbance, age, composition mapping 1988 Landsat: 1985-1988 forest disturbance:

  18. Forest disturbance, age, composition mapping 1993 Landsat: 1985-1993 forest disturbance:

  19. Fire Wind Biomass Fire Insects Wind Harvest Spatially I nteractive Landscape

  20. Fire Wind Biomass Fire Insects Wind Harvest Spatially I nteractive Landscape

  21. • Ownership ca. 2010 • >80 owners • >500 parcels

  22. Snowshoe hare/Lynx foraging habitat

  23. Snowshoe hare/Lynx foraging habitat

  24. Snowshoe hare/Lynx foraging habitat

  25. S. Olsen 2014

  26. Maine Forest Service

  27. 2014 trap counts Total SBW Count 0 - 1 2 - 30 40 - 50 60 - 100 200 300 - 600

  28. Spruce-fir Live Biomass Hennigar et al. 2013

  29. Percent change in forest area (2010-2110)

  30. Ownership change Lilliholm et al. 2010

  31. Adapted from Iverson et al 2007

  32. Suitable habitat for S-F forest • Number of days >5⁰C • Mean temp in the coldest month • Mean annual precipitation • Growing season precipitation • Associated with areas that are colder and snowier

  33. Forest Management & Lynx Habitat Trends Erin Simons-Legaard Collaborators: Kasey Legaard, Dan Harrison, Mark McCollough, Aaron Weiskittel, Caitlin Andrews

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