Skip to Main Content
Anthropogenic alterations of genetic diversity within tree populations: Implications for forest ecosystem resilienceAuthor(s): Paul G. Schaberg; Donald H. DeHayes; Gary J. Hawley; Samuel E. Nijensohn
Source: Forest Ecology and Management. 256: 855-862.
Publication Series: Scientific Journal (JRNL)
Station: Northern Research Station
PDF: View PDF (278.53 KB)
DescriptionHealthy forests provide many of the essential ecosystem services upon which all life depends. Genetic diversity is an essential component of long-term forest health because it provides a basis for adaptation and resilience to environmental stress and change. In addition to natural processes, numerous anthropogenic factors deplete forest genetic resources. Genetic losses could be particularly consequential now because robust resilience is needed to respond to a growing number, variety, and frequency of stress exposures. Silvicultural management that selectively removes trees (and their genes) from forests may be another force reshaping forest gene pools. Although data concerning the influence of silvicultural management on genetic resources in temperate forests is somewhat mixed, through the genetic assessment of long-term silvicultural treatments within an eastern hemlock (Tsuga canadensis) forest, and computer-based simulated harvests of a genetically mapped eastern white pine (Pinus strobus) stand, we found that the selective removal of trees can alter gene frequencies.
- 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.
CitationSchaberg, Paul G.; DeHayes, Donald H.; Hawley, Gary J.; Nijensohn, Samuel E. 2008. Anthropogenic alterations of genetic diversity within tree populations: Implications for forest ecosystem resilience. Forest Ecology and Management. 256: 855-862.
Keywordsecosystem resilience, natural selection, silvicultural management, genetic structure, rare alleles
- Effects of the removal of overstory hemlock on redback salamanders and other forest-floor fauna
- Silviculture and stand dynamics of hemlock-dominated stands in southern New England: some lessons from early research
- Scarification and gap size have interacting effects on northern temperate seedling establishment
XML: View XML