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    Author(s): Gilbert H. Schubert
    Date: 1953
    Source: Journal of Forestry
    Publication Series: Scientific Journal (JRNL)
    PDF: Download Publication  (1.0 MB)


    Squirrels may harvest a far greater proportion of ponderosa pine cones than many foresters realize. This was evident while making a routine cone count on a number of permanent plots on the Stanislaus Experimental Forest near Pinecrest, California, in September 1952. Ponderosa and Jeffrey pines were the predominant species affected. Many ponderosa pines had more than half their total number of cones cut and destroyed.

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    Schubert, Gilbert H. 1953. Ponderosa pine cone cutting by squirrels. Journal of Forestry. 51(3): 202.

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