Habitat Characteristics of Active and Abandoned Red-Cockaded Woodpecker Colonies

  • Authors: Loeb, Susan C.; Pepper, William D.; Doyle, Arlene T.
  • Publication Year: 1992
  • Publication Series: Miscellaneous Publication
  • Source: South. J, Appl. For. 16(3):120-125

Abstract

Active red-cockaded woodpecker (Picoides borealis) colonies in the Piedmont of Georgia are mature pine stands (mean age = 87 ± 1 yr old) with relatively sparse midstories (mean basal area = 31 ± 3 ft2/ac). Active and abandoned colony sites have similar overstory characteristics, but midstories are significantly denser in abandoned colony sites (mean basal area = 56 ± 3 ft2/ac ). Previous studies have focused on the effect of hardwoods in the midstory, but we found that increases in both pine and hardwood midstory density are associated with colony abandonment. A logistic regression model based on field data suggests that the probability of a colony becoming abandoned increases considerably when midstory basal area is > 30 ft2/ac. To maintain red-cockaded woodpecker populations, managers should keep midstory basal area in colonies below 25 ft2/ac. Treatments should be applied to entire stands and not just around individual cavity trees.

  • Citation: Loeb, Susan C.; Pepper, William D.; Doyle, Arlene T. 1992. Habitat Characteristics of Active and Abandoned Red-Cockaded Woodpecker Colonies. South. J, Appl. For. 16(3):120-125
  • Posted Date: April 1, 1980
  • Modified Date: August 22, 2006
  • Requesting Print Publications

    Publication requests are subject to availability. Fiscal responsibility limits the hardcopies of publications we produce and distribute. Electronic versions of publications may be downloaded, distributed and printed.

    Please make any requests at pubrequest@fs.fed.us.

    Publication Notes

    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
    • Our online publications are scanned and captured using Adobe Acrobat. During the capture process some typographical errors may occur. Please contact the SRS webmaster if you notice any errors which make this publication unusable.
    • To view this article, download the latest version of Adobe Acrobat Reader.