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 (900.0 KB bytes)

Title: Fragments, extinction, and recolonization: The genetics of metapopulations

Author: Antolin, Michael F.; Schoettle, Anna W.;

Date: 2001

Source: In: Joyce, D.; Simpson, J. D., eds. Proceedings of the Twenty-Seventh Meeting of the Canadian Tree Improvement Association: Genetic resource management : Building strategies for the new millennium; Sault Ste. Marie, Ontario; August 15-17, 2000. Natural Resources Canada, Canadian Forest Service. p. 37-46.

Publication Series: Paper (invited, offered, keynote)

Description:

The idea of a metapopulation - a group of local populations in a patchy habitat - recurs in both ecology and evolutionary biology. Although the metapopulation concept is at least 50-75 years old, it has recently resurged, as natural habitats become fragmented and are lost because of humans' use of resources. However, fragmentation is not the same as habitat loss per se, and patchy habitats do not necessarily make metapopulations. Some populations may behave naturally as metapopulations and are characterized by extinction of some local populations and recolonization of empty patches from the occupied patches. Alternatively, other populations may be forced into a metapopulation dynamic by human-caused habitat fragmentation or other introduced disturbances. The genetic effects of habitat fragmentation or introduced disturbance are subtle and depend on frequency of migration between patches, rates of recolonization of empty patches, and levels of genetic variation before fragmentation began. Other than generally reducing population sizes, the effects of metapopulations on breeding practices or adaptive evolution depend on the amount of genetic variation remaining within local populations, how genetically differentiated from each other local populations become as a result of local extinctions and recolonization, the strength of natural or artificial selection, and whether selection is locally strong enough to result in adaptation to local conditions. We offer limber pine (Pinus flexilis James) as an example of a forest tree species that experiences metapopulation dynamics.

Keywords: metapopulations, fragmentation, limber pine, Pinus flexilis James

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:


Antolin, Michael F.; Schoettle, Anna W. 2001. Fragments, extinction, and recolonization: The genetics of metapopulations. In: Joyce, D.; Simpson, J. D., eds. Proceedings of the Twenty-Seventh Meeting of the Canadian Tree Improvement Association: Genetic resource management : Building strategies for the new millennium; Sault Ste. Marie, Ontario; August 15-17, 2000. Natural Resources Canada, Canadian Forest Service. p. 37-46.

 


 [ 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.