Skip to Main Content
Mapping host-species abundance of three major exotic forest pestsAuthor(s): Randall S. Morin; Andrew M. Liebhold; Eugene R. Luzader; Andrew J. Lister; Kurt W. Gottschalk; Daniel B. Twardus
Source: Res. Pap. NE-726. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northeastern Research Station. 11 p.
Publication Series: Research Paper (RP)
Station: Northeastern Research Station
Download Publication (796.9 KB)
DescriptionPeriodically over the last century, forests of the Eastern United States devastated by invasive pests. We used existing data to predict the geographical extent of future damage from beech bark disease (BBD), hemlock woolly adelgid (HWA), and gypsy moth. The distributions of host species of these alien pests were mapped in 1-km2 cells by interpolating host basal area/ha from 93,611 forest-inventory plots in 37 states. The interpolated surfaces were adjusted for forest density (percent land cover) by multiplying values by an estimate of percent forest cover derived from existing land-cover maps (30-m2 cells). According to our estimates, BBD currently occupies only about 27 percent of its potential range in land area, but has invaded more than 54 percent in total host density. HWA occupies nearly 26 percent of its potential range in land area, and about one-quarter in total host density. Gypsy moth occupies only 23 percent of its potential range in the Eastern United States, and only 26 percent in total host density.
- Check the Northern Research Station web site to request a printed copy of this publication.
- Our on-line publications are scanned and captured using Adobe Acrobat.
- During the capture process some typographical errors may occur.
- Please contact Sharon Hobrla, email@example.com if you notice any errors which make this publication unusable.
- 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.
CitationMorin, Randall S.; Liebhold, Andrew M.; Luzader, Eugene R.; Lister, Andrew J.; Gottschalk, Kurt W.; Twardus, Daniel B. 2005. Mapping host-species abundance of three major exotic forest pests. Res. Pap. NE-726. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northeastern Research Station. 11 p.
KeywordsBeech bark disease, hemlock woolly adelgid, gypsy moth
- Quantifying spatio-temporal variation of invasion spread
- Evaluating Southern Appalachian forest dynamics without eastern hemlock: consequences of herbivory by the hemlock wooly adelgid.
- The role of silvicultural thinning in eastern forests threatened by hemlock woolly adelgid (Adelges tsugae)
XML: View XML