Using dendrochronology to model hemlock woolly adelgid effects on eastern hemlock growth and vulnerabilityAuthor(s): James Rentch; Mary Ann Fajvan; Richard A. Evans; Brad Onken
Source: Biological Invasions. 11: 551-563.
Publication Series: Scientific Journal (JRNL)
Station: Northern Research Station
Download Publication (264.83 KB)
This study examined the relationship between eastern hemlock (Tsuga canadensis (L.) Carr.) crown condition and changes in radial growth associated with infestation by hemlock woolly adelgid Adelges tsugae (Homoptera: Adelgidae) (HWA). Tree-ring chronologies of eastern hemlock were used to develop a binomial decline index based on three consecutive years of below average growth. Radial growth decline was modeled, using logistic regression, as a function of an extensive array of tree, crown, and site variables that were collected over an 11 year period in Delaware Water Gap National Recreation Area.
- 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, firstname.lastname@example.org 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.
CitationRentch, James; Fajvan, Mary Ann; Evans, Richard A.; Onken, Bradley. 2009. Using dendrochronology to model hemlock woolly adelgid effects on eastern hemlock growth and vulnerability. Biological Invasions 11:551-563
KeywordsHemlock woolly adelgid, Adelges tsugae, Tsuga Canadensis, dendrochronology, multiple logistic model, hemlock decline
- Impacts of hemlock decline and ecological considerations for hemlock stand restoration following hemlock woolly adelgid outbreaks
- Effects of the removal of overstory hemlock from hemlock-dominated forests on eastern redback salamanders
- The aftermath of an invasion: Structure and composition of Central Appalachian hemlock forests following establishment of the hemlock woolly adelgid, Adelges tsugae
XML: View XML