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Effect of Injury by Porcupines on Radial Growth of Ponderosa Pine

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Radial growth was reduced in ponderosa pines (Pinus ponderosa Laws.) growing in a plantation and injured by porcupines (Erethizon dorsatum L.). The most significant reduction in radial growth occurred in completely girdled trees. Reductions in radial growth in scarred trees were most pronounced during the first and second years after scarring, but the mean difference in radial growth between scarred and unscarred trees was not significant the fifth year after scarring.

Document Type: Journal Article

Affiliations: Wildlife Research Biologist, Bureau of Sport Fisheries and Wildlife, U. S. Department of the Interior, Missoula, Montana

Publication date: October 1, 1967

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  • The Journal of Forestry is the most widely circulated scholarly forestry journal in the world. In print since 1902, the Journal has received several national awards for excellence. The mission of the Journal of Forestry is to advance the profession of forestry by keeping forest management professionals informed about significant developments and ideas in the many facets of forestry: economics, education and communication, entomology and pathology, fire, forest ecology, geospatial technologies, history, international forestry, measurements, policy, recreation, silviculture, social sciences, soils and hydrology, urban and community forestry, utilization and engineering, and wildlife management. The Journal is published bimonthly: January, March, May, July, September, and November.
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