Ponderosa Pine
• Jigsaw bark
• Three needles/bundle
• Large pines of basin
• Important wildlife trees
• Dominant pine...
Ponderosa Pine
Pinus ponderosa
Ecology
• Every western state
• Young trees have dark blackish bark
• Older trees orange yellow bark
• Arid transition...
Ecology continued
• Man and beetle main mortality factors
• 250-500 years
• Studies show that in some areas, 85% of
tr...
Ecology continued
• Seeds eaten by squirrels, chipmunks, grouse,
nutcrackers, ravens, quail
• Browsing mule deer thin s...
Ponderosa pine
Ponderosa pine
Ponderosa pine
Ponderosa pine
Ponderosa pine
Ponderosa pine
Ponderosa pine
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Ponderosa pine

Published on: Mar 4, 2016
Source: www.slideshare.net


Transcripts - Ponderosa pine

  • 1. Ponderosa Pine • Jigsaw bark • Three needles/bundle • Large pines of basin • Important wildlife trees • Dominant pine of high desert • Logging in basin/west • Yellow Pine
  • 2. Ponderosa Pine Pinus ponderosa
  • 3. Ecology • Every western state • Young trees have dark blackish bark • Older trees orange yellow bark • Arid transition zones • Dry spacious groves • Extensive horizontal root systems determine spacing of large trees
  • 4. Ecology continued • Man and beetle main mortality factors • 250-500 years • Studies show that in some areas, 85% of trees come from abandoned chipmunk caches • Bitterbrush and sagebrush important to survival of young trees(shading)
  • 5. Ecology continued • Seeds eaten by squirrels, chipmunks, grouse, nutcrackers, ravens, quail • Browsing mule deer thin seedlings • Reproductive maturity reached at 50 years • Scientific studies show that browsing by cattle is perhaps the most objectionable deterrent to satisfactory reproduction of this valuable tree

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