Borges, S. and M. Alfaro. 1997. The earthworms of
Baño de Oro, Luquillo Experimental Forest, Puerto
Rico. Soil Biol. Biochem. 29:231-234.
The earthworm fauna of the four forest types at the Batio de Oro region of the Luquillo
Experimental Forest was sampled over 6 months. Eight species were found: two Glossoscolecidae, one
Ocnerodrilidae, four Megascolecidae, and one Eudrilidae. The total species density and biomass showed
no significant correlation to forest type or soil depth, but some species did show different distribution
patterns according to certain soil properties. Exotic species were more abundant, but native species
accounted for most of the biomass. Species number and density were low when compared with similar
studies in other neotropical forests. This could be due to the high moisture content of the soils and its
effects on other soil properties.