Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): Richard N. Conner; Daniel Saenz; D. Craig Rudolph; William G. Ross; David L. Kulhavy; Robert N. Coulson
    Date: 2001
    Source: Auk. 118(1): 219-224
    Publication Series: Miscellaneous Publication
    PDF: Download Publication  (102 KB)


    The red-cockaded woodpecker (Picoides borealis) is unique among North American woodpeckers in that it nests and roosts almost exclusively in living pines (Pinus spp.) The red-cockaded woodpecker makes daily excavations at small wounds, termed "resin wells," around the cavity entrance and on the bole of the cavity tree from which resin flows down the tree. The woodpecker also flakes off loose bark, which results in a smoother surface on the pine tree's bole. These behaviors result in a resin barrier that serves as an effective deterrent against rat snakes, which prey on the red-cockaded woodpecker. A pine tree's resin provides its primary defense against the southern pine beetle (Dendroctonus frontalis). The authors discuss whether the red-cockaded woodpecker's depletion of a pine tree's resin increases the risk of bark beetle infestation. The article addresses results for longleaf (Pinus palustris), loblolly (P. taeda), and shortleaf (P. echinata) pines.

    Publication Notes

    • You may send email to to request a hard copy of this publication.
    • (Please specify exactly which publication you are requesting and your mailing address.)
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.


    Conner, Richard N.; Saenz, Daniel; Rudolph, D. Craig; Ross, William G.; Kulhavy, David L.; Coulson, Robert N. 2001. Does red-cockaded woodpecker excavation of resin wells increase risk of bark beetle infestation of cavity trees? Auk. 118(1): 219-224.

    Related Search

    XML: View XML
Show More
Show Fewer
Jump to Top of Page