Comparison of two roadside survey procedures for dwarf mistletoes on the Sawtooth National Forest, Idaho

Robert L. Mathiasen, James T. Hoffman, John C. Guyon, Linda L. Wadleigh

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

Two roadside surveys were conducted for dwarf mistletoes parasitizing lodgepole pine and Douglas-fir on the Sawtooth National Forest, Idaho. One survey used variable-radius plots located less than 150 m from roads. The 2nd survey used variable-radius plots established at 200-m intervals along 1600- m transects run perpendicular to the same roads. Estimates of the incidence (percentage of trees infected and percentage of plots infested) and (severity average dwarf mistletoe rating) for both lodgepole pine and Douglas-fir dwarf mistletoes were not significantly different for the 2 survey methods. These findings are further evidence that roadside-plot surveys and transect-plot surveys conducted away from roads provide similar estimates of the incidence of dwarf mistletoes for large forested areas.

Original languageEnglish (US)
Pages (from-to)129-134
Number of pages6
JournalGreat Basin Naturalist
Volume56
Issue number2
StatePublished - Apr 1 1996
Externally publishedYes

Keywords

  • Douglas-fir
  • dwarf mistletoes
  • lodgepole pine
  • surveys

ASJC Scopus subject areas

  • Animal Science and Zoology
  • Agricultural and Biological Sciences(all)
  • Plant Science

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