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Forest Management & Lynx Habitat Trends Erin Simons-Legaard - - PowerPoint PPT Presentation
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 (
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Hoving et al. 2003
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Eastern spruce budworm (Choristoneura fumiferana Clem.)
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Irland et al. 1988
State-run spray protection program, treating several million acres annually at its peak Proposed spray blocks, 1979
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- Approx. 1500 ac salvage
harvest block
Severe mortality
- 20-25 million cords of spruce and fir
killed Salvage logging by commercial clearcut
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Maine Forest Practices Act, 1989
The Forestry Rules of Maine, 2014; MFS
- First legal definition of a
clearcut
- Regulation of clearcut size,
configuration, regeneration
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1970-80s budworm salvage clearcuts Forest Practices Act category 1 clearcuts
Maine Forest Practices Act, 1989
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Annual statewide harvest
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Lilliholm et al. 2010
Ownership change
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Ownership change
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Ownership change
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Conservation easements
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Landowner change history, 1994-2007
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Landsat Thematic Mapper:
2010 2007 2004 2001 1998 1995 1993 1991 1988 1985
Landsat Multispectral Scanner:
1985 1982 1978 1975 1973
2-3 year intervals
- stand-replacing and
partial canopy disturbance
- disturbance intensity
(% basal area removed) 2-4 year intervals
- stand-replacing
disturbance
Forest disturbance, age, composition mapping
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1985 Landsat: 1988 Landsat:
Harvest, 1985-1988
Forest disturbance, age, composition mapping
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1988 Landsat: 1985-1988 forest disturbance: Forest disturbance, age, composition mapping
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1993 Landsat: 1985-1993 forest disturbance: Forest disturbance, age, composition mapping
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Wind Harvest Fire Insects
Spatially I nteractive Landscape
Fire Wind Biomass
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Wind Harvest Fire Insects
Spatially I nteractive Landscape
Fire Wind Biomass
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- Ownership ca. 2010
- >80 owners
- >500 parcels
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Snowshoe hare/Lynx foraging habitat
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Snowshoe hare/Lynx foraging habitat
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Snowshoe hare/Lynx foraging habitat
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- S. Olsen 2014
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Maine Forest Service
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Total SBW Count
0 - 1 2 - 30 40 - 50 60 - 100 200 300 - 600
2014 trap counts
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Spruce-fir Live Biomass
Hennigar et al. 2013
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Percent change in forest area (2010-2110)
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Lilliholm et al. 2010
Ownership change
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Adapted from Iverson et al 2007
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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
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