Skip to page content
USDA Forest Service
  
Treesearch

Research & Development Treesearch

 
Treesearch Home
About Treesearch
Contact Us
Research & Development
Forest Products Lab
International Institute of Tropical Forestry
Northern
Pacific Northwest
Pacific Southwest
Rocky Mountain
Southern
Help
 

GeoTreesearch


Science.gov - We Participate


USA.gov  Government Made Easy


Global Forest Information Service

US Forest Service
P.O. Box 96090
Washington, D.C.
20090-6090

(202) 205-8333

You are here: Home / Search / Publication Information
Bookmark and Share

Publication Information

(1.6 MB)

Title: Host-parasite distributions under changing climate: Tsuga heterophylla and Arceuthobium tsugense in Alaska

Author: Barrett, Tara M.; Latta, Greg; Hennon, Paul E.; Eskelson, Bianca N.I.; Temesgen, Hailemariam.

Date: 2012

Source: Canadian Journal of Forestry Research. 42: 642-656

Publication Series: Scientific Journal (JRNL)

Description: Dwarf mistletoes (Arceuthobium species) influence many processes within forested ecosystems, but few studies have examined their distribution in relation to climate. An analysis of 1549 forested plots within a 14.5 million ha region of southeast Alaska provided strong indications that climate currently limits hemlock dwarf mistletoe (Arceuthobium tsugense (Rosendahl) G.N. Jones) to a subset of the range of its primary tree host, western hemlock (Tsuga heterophylla (Raf.) Sarg.), with infection varying from a high of 20% of trees at sea level to only 5% by 200 m elevation. Three types of modeling approaches (logistic, most similar neighbor, and random forests) were tested for the ability to simultaneously predict abundance and distribution of host and pathogen as a function of climate variables.

Keywords: climate envelope models, species distribution modeling, climate niche, climate change, dispersal

Publication Notes:

  • 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.

XML: View XML

Citation:


Barrett, Tara M.; Latta, Greg; Hennon, Paul E.; Eskelson, Bianca N.I.; Temesgen, Hailemariam. 2012. Host-parasite distributions under changing climate: Tsuga heterophylla and Arceuthobium tsugense in Alaska. Canadian Journal of Forestry Research. 42: 642-656.

 


 [ Get Acrobat ]  Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility

USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.