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

(540 KB bytes)

Title: Occurrence of an exotic earthworm (Amynthas agrestis) in undisturbed soils of the southern Appalachian Mountains, USA

Author: Callaham, Mac. A. Jr.; Hendrix, Paul F.; Phillips, Ross J.

Date: 2003

Source: Pedobiologia 47, 466-470, 2003

Publication Series: CLEAN

Description: This study documents the occurrence of an aggressive invasive earthworm species in undisturbed forest soils of the southern Appalachian Mountains of northern Georgia, USA. Earthworms were sorted from samples collected in pitfall traps that had been set in mature, mesic oak-hickory forests in remote, high elevation, locations across northern Georgia. Specimens were continuously collected in these traps over the course of the summer and autumn of 1993, and more than 600 earthworms were collected from 35 different trapping sites. There were at least 9 different earthworm taxa collected during the study including three species not native to North American soils (Amynthas agrestis, Octolasion tyrtaeum, and O. cyaneum). The majority of earthworms collected in the study were A. agrestis. Because large numbers of A. agrestis were trapped at a single site, we made measurements of individuals in an attempt to examine the reproductive status of A. agrestis at that site over time. Small numbers of A. agrestis were trapped in July and August, peak abundance occurred in September, and there was a decline in abundance through November to zero trapped in December. Sexually mature adults were first trapped in small numbers in late August, but made up 80% of the total population by mid September, and 100 % of the population in October and November.

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:


Callaham, Mac. A., Jr.; Hendrix, Paul F.; Phillips, Ross J. 2003. Occurrence of an exotic earthworm (Amynthas agrestis) in undisturbed soils of the southern Appalachian Mountains, USA. Pedobiologia 47, 466-470, 2003

 


 [ 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.