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Regen on the Rock Post-Fire Recovery of A Jack Pine Ecosystem

Photo of the July 2018 wildfire taken from Ashley Road, West Chazy, New York

Disturbance is essential for shaping and maintaining the composition, structure, and function of ecosystems.

Partially opened jack pine cones

Fire:

  • Opens serotinous cones
  • Limits biomass accumulation
  • Eliminates competition
  • Exposes mineral and organic seedbeds
  • Recycles nutrients
Fire Severity Map of Altona Flat Rock
  • Fire severity
  • Pre-fire stand composition and density
  • Soil Carbon and moisture
  • Ground cover composition
  • Regeneration
Map of study area
Regeneration by fire severity and density
Regeneration by fire severity
Dead jack pine seedling
Position of Intensive Plots
Tagging seedlings at Plot 3
Plot 2 in the rain
Plot 2 in the snow
Tagged jack pine seedling
Plot 1
Plot 2
Plot 3

Plot 1= Black, Plot 2= Red, Plot 3=Blue

Seedling germination and survivorship in the year after the fire
  • Pre-fire stand density and fire severity are the only two significant factors effecting regeneration according to data from 45 permanent plots
  • Are ground cover and substrate impacting the germination and growth of jack pine seedlings?
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