Skip to page content
USDA Forest Service

Research & Development Treesearch

Treesearch Home
About Treesearch
Contact Us
Research & Development
Forest Products Lab
International Institute of Tropical Forestry
Pacific Northwest
Pacific Southwest
Rocky Mountain
Southern Research Station
Help - We Participate  Government Made Easy

Global Forest Information Service

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

(202) 205-8333

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

Publication Information

View PDF (2.3 MB)

Title: Size-associated morphological variation in the red tree vole (Arborimus longicaudus)

Author: Miller, Mark P.; Forsman, Eric D.; Swingle, James K.; Miller, Stephanie A.; Haig, Susan M.;

Date: 2010

Source: Northwestern Naturalist. 91: 63-73

Publication Series: Scientific Journal (JRNL)

Description: We examined patterns of size-associated morphological variation within the Red Tree Vole (Arborimus longicaudus) for the purposes of 1) identifying differences between the Red Tree Vole and the Dusky Tree Vole (A. l. silvicola), a putative subspecies of the Red Tree Vole; and 2) examining spatial patterns of morphological variation across the species' range. Our results illustrate subtle, but significant, morphological differences across the boundary that has been proposed to delimit the ranges of the Dusky Tree Vole and Red Tree Vole. However, the morphological characters examined have virtually no diagnostic utility for distinguishing between subspecies. We also performed a series of linear regressions that revealed correlations between morphological variation and latitude. Ultimately, these findings indicated that morphological variation in Red Tree Voles is in good agreement with Bergmann's Rule and Allen's Rule, two well-established ecographic principles that dictate relationships between environmental temperatures and morphological attributes. Because our analyses do not demonstrate strong differences between tree vole subspecies, we encourage future analyses of variation in pelage coloration and genetic structure to unequivocally determine the Dusky Tree Vole's status.

Keywords: Allen's Rule, Arborimus longicaudus, Arborimus longicaudus silvicola, Bergmann's Rule, Dusky Tree Vole, latitude, morphology, Oregon Red Tree Vole, subspecies

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.



Miller, Mark P.; Forsman, Eric D.; Swingle, James K.; Miller, Stephanie A.; Haig, Susan M. 2010. Size-associated morphological variation in the red tree vole (Arborimus longicaudus). Northwestern Naturalist. 91: 63-73.


 [ 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.