Plant and litter influences on earthworm abundance and community structures in a tropical wet forest

  • Authors: Gonzalez, G.; Zou, X.
  • Publication Year: 1999
  • Publication Series: Scientific Journal (JRNL)
  • Source: Biotropica 31 (3): 824-829
  • DOI: 10.1111/j.1744-7429.1999.tb00391.x

Abstract

Plant communities differ in species composition and litter input. To examine the influence of plant species on the abundance and community structure of soil fauna, we sampled earthworms in areas close to and away from the bases of Dacryodes excelsa and Heliconia caribaea, two distinct plant communities within a tropical wet forest in Puerto Rico. We also carried out a litter manipulation experiment to examine the short-term responses of earthworms to litter removal and litter addition treatments. We found that: ( I ) the density and biomass of both soil-feeding endogeic and litrer-feeding anecic worms did not differ between areas close to and away from Dacryodes trees (in contrast, the density and biomass of anecic worms was higher in areas away from Heliconia plants despite the lack of differences for endogeic worms); and (2) total dry weight of carchworms tended to be higher in the litter addition treatment than in the control within the Heliconia community. Our results suggest that Heliconia caribaea has a strong negative influence on anecic earthworms and that earthworms in the Heliconia community are more sensitive to litter input than in the Dacryodes community.

  • Citation: Gonzalez, G.; Zou, X. 1999. Plant and litter influences on earthworm abundance and community structures in a tropical wet forest. Biotropica 31 (3): 824-829.
  • Keywords: litterfall; plant-earthworm interactions; Pontoscolex corethrurus; Puerto Rico; soil, soil fauna.
  • Posted Date: June 10, 2014
  • Modified Date: December 2, 2014
  • 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.
    • To view this article, download the latest version of Adobe Acrobat Reader.