Skip to Main Content
Visual aids for aerial observers on forest insect surveys.Author(s): A.T. Larsen
Source: PNW Old Series Research Notes No. 149, p. 1-4
Publication Series: Research Note (RN)
Station: Pacific Northwest Research Station
PDF: View PDF (270 KB)
DescriptionAerial surveys are widely used to detect, appraise, and map damage caused to forest trees by insects. The success of these surveys largely depends upon the ability of observers to distinguish differences in foliage color and tree condition. The observers' ability is influenced by several factors.
- You may send email to email@example.com 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.
CitationLarsen, A.T. 1957. Visual aids for aerial observers on forest insect surveys. PNW Old Series Research Notes No. 149, p. 1-4
A review of the effects of station placement and observer bias in detections of marbled murrelets in forest stands
- Efficient species-level monitoring at the landscape scale
- Validating the Malheur model for predicting ponderosa pine post-fire mortality using 24 fires in the Pacific Northwest, USA
XML: View XML