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 Research Station
Help
 

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

View PDF (197 KB)

Title: Modeling the effects of dispersal on predicted contemporary and future fisher (Martes pennanti) distribution in the U.S

Author: Olson, Lucretia; Schwartz, M.;

Date: 2013

Source: In: 43rd Annual Meeting of the Idaho Chapter of The Wildlife Society; 11-14 March 2013; Coeur d'Alene, Idaho. Idaho Chapter of The Wildlife Society. p. 31. Online: http://www.ictws.org/2013AnnualMeetingFinalProgram.pdf

Publication Series: Abstract

Description: Many species at high trophic levels are predicted to be impacted by shifts in habitat associated with climate change. While temperate coniferous forests are predicted to be one of the least affected ecosystems, the impact of shifting habitat on terrestrial carnivores that live within these ecosystems may depend on the dispersal rates of the species and the patchiness of the environment. Much of the Northern U.S. Rocky Mountains is comprised of high to moderate elevation mountain ranges separated by large river valleys, extensively used for agriculture. Connectivity among patches is dependent on patch configurations and an animal's ability to disperse. We aim to understand how dispersal affects projected future available habitat for a threatened, endemic carnivore, the fisher (Martes pennanti). We designed a survey to detect fisher using non-invasive genetic sampling across their historical distribution in Montana and Idaho. We subsequently modeled the distribution of fisher across western Montana and northern Idaho using a suite of vegetative, topographic, and climatic variables. To model future distribution under a changing climate, we used only topographic and climatic variables found to be important in the current distribution model, since vegetative variables could not readily be projected into the future. We considered a global climate model with two climate change scenarios (high emissions [A2] or reduced emissions [B2]) and three time steps (2030, 2060, and 2090). We incorporated the effect of dispersal ability into our species distribution model by varying the distance at which newly created patches of habitat could be colonized. We found that the probability of current fisher occurrence was highest given the presence of mesic forest types with tall trees, high annual precipitation, and mid-range winter temperatures. Future predictions of fisher habitat show an increase in area of high-probability habitat under most dispersal assumptions.

Keywords: fisher, Martes pennanti, 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.
  • You may send email to rmrspubrequest@fs.fed.us to request a hard copy of this publication. (Please specify exactly which publication you are requesting and your mailing address.)

XML: View XML

Citation:


Olson, Lucretia; Schwartz, M. 2013. Modeling the effects of dispersal on predicted contemporary and future fisher (Martes pennanti) distribution in the U.S. Rocky Mountains. In: 43rd Annual Meeting of the Idaho Chapter of The Wildlife Society; 11-14 March 2013; Coeur d'Alene, Idaho. Idaho Chapter of The Wildlife Society. p. 31. Online: http://www.ictws.org/2013AnnualMeetingFinalProgram.pdf

 


 [ 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.