Reaction of Glossoscolecidae (Annelida, Oligochaeta) to flooding in a Central Amazonian inundation forest

Abstract

Horizontal migration in response to flooding is re ported for Glossoscolecidae of a black-water inundation forest. During increasing water-level, Glossoscolecidae migrate towards the dry-land forest, 16-26m distance beyond the water margin. With decreasing water-level, they return to the inundation-forest, following the water margin at 5-1 Om distance. Distribution seems to be cor related with humidity and pH of the soil.