Policy and management responses to earthworm invasions in North America

  • Authors: Callaham, Mac A.; Gonzalez, Grizelle; Hale, Cynthia M; Henegham, Liam; Lachnicht, Sharon L.; Zou, Xiaoming
  • Publication Year: 2006
  • Publication Series: Miscellaneous Publication
  • Source: Biol Invasions, Vol. 8: 1317-1329

Abstract

The introduction, establishment and spread of non-native earthworm species in North America have been ongoing for centuries. These introductions have occurred across the continent and in some ecosystems have resulted in considerable modifications to ecosystem processes and functions associated with above- and belowground foodwebs. However, many areas of North America have either never been colonized by introduced earthworms, or have soils that are still inhabited exclusively by native earthworm fauna. Although several modes of transport and subsequent proliferation of non-native earthworms have been identified, little effort has been made to interrupt the flow of new species into new areas. Examples of major avenues for introduction of earthworms are the fish-bait, horticulture, and vermicomposting industries. In this paper we examine land management practices that influence the establishment of introduced species in several ecosystem types, and identify situations where land management may be useful in limiting the spread of introduced earthworm species. Finally, we discuss methods to regulate the importation of earthworms and earthworm-containing media so that introduction of new exotic species can be minimized or avoided. Although our focus in this paper is necessarily North American, many of the management and policy options presented here could be applicable to the problem of earthworm invasions in other parts of the world.

  • Citation: Callaham, Mac A., Jr.; Gonzalez, Grizelle; Hale, Cynthia M; Henegham, Liam; Lachnicht, Sharon L.; Zou, Xiaoming 2006. Policy and management responses to earthworm invasions in North America. Biol Invasions, Vol. 8: 1317-1329
  • Keywords: biological invasion, quarantine, biogeography, earthworms, lumbricidae, megascolecidae, glossoscolecidae, introduced species, exotics
  • Posted Date: January 9, 2008
  • Modified Date: January 9, 2008
  • Print Publications Are No Longer Available

    In an ongoing effort to be fiscally responsible, the Southern Research Station (SRS) will no longer produce and distribute hard copies of our publications. Many SRS publications are available at cost via the Government Printing Office (GPO). Electronic versions of publications may be downloaded, printed, and distributed.

    Publication Notes

    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
    • Our online publications are scanned and captured using Adobe Acrobat. During the capture process some typographical errors may occur. Please contact the SRS webmaster if you notice any errors which make this publication unusable.
    • To view this article, download the latest version of Adobe Acrobat Reader.