Title: Earthworm abundance and species composition in abandoned tropical croplands: comparisons of tree plantations and secondary forests.
Author: Gonzalez, G.; Zou, X.; Borges, S.;
Source: Pedobiologia. 40:385-391
Publication Series: Scientific Journal (JRNL)
Description: We compared patterns of earthworms abundance and species composition in tree plantation and secondary forest of Puerto Rico. Tree plantations included pine (Pinus caribea Morelet) and mahogany (Swietenia macrophylla King) established in the 1930's; 1960's; and 1970's; secondary forests were naturally regenerated in areas adjacent to these plantations. We found that (1) earthworm density and fresh weight in the secondary forests were twice those in either of the tree plantations, and didn't differ between the plantations, and (2) the exotic earthworm species, Pontoscolex corethrurus Muller, dominated both plantations and the secondary forests, but native earthworm species, Pontoscolex spiralis Borges & Moreno, Estherella montana Gates, and E. gatesi Borges & Moreno, occurred only in the seconedary forests. Our results suggest that naturally regenerated secondary forests are preferable to pine and mahogany plantations for maintaining a high level of earthworm density, fresh weight, and native species.
Keywords: Luquillo Experimental forest, Pinus caribaea, Pontoscolex corethrurus, Puerto Rico, restoration, Swietenia macrophylla, Pontoscolex spiralis, Estherella montana, Estherella gatesi
- 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
Gonzalez, G.; Zou, X., and Borges, S. 1996. Earthworm abundance and species composition in abandoned tropical croplands: comparisons of tree plantations and secondary forests. Pedobiologia. 40 :385-391
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility