A modified-rhizotron protocol for in-situ observation of earthworm burrowing activity in North Borneo’s lowland dipterocarp forests

Noor Ain Yahya; Mohd Aminur Faiz Suis; Fera Cleophas; Carolyn Melissa Payus; Kawi Bidin.

This paper introduced an innovative approach to evaluate burrowing activities of earthworms in the subterranean layer of a lowland dipterocarp forest in Danum Valley, Sabah. The motivation behind this study stemmed from the absence of clear and practical methods of observing earthworms in their natural environment. This study proposed modifications to rhizotron-use, for observing earthworms instead of plant roots, using it as a tool for scientists to monitor and assess their activity underground both qualitatively and quantitatively. This paper includes photographic examples and observation advantages to using the 100 cm x 25 cm belowground terrarium. Although this method has certain limitations, it offers significant insights into their behavior, providing both observational and measurable data. The earthworm Perspex rhizotron holds a considerable promise in advancing annelid research, guiding forest management and could pave way for a more creative data collection in the future.

KEYWORDS: Burrows; Danum Valley; Earthworm; Modified-rhizotron; Sabah



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