BerleseTullgrenFunnel
The Berlese-Tullgren funnel, commonly called the Berlese funnel, is a laboratory apparatus used to extract terrestrial invertebrates from soil, leaf litter, moss, and other small substrates. It enables researchers to sample microarthropods such as mites, springtails, and small insects by driving them away from a drying surface and into a collecting vial containing a preservative.
The technique relies on a desiccating gradient created by heat or light. As the substrate is heated
Construction typically includes a funnel body with a substrate screen, a second screen to hold the sample
Applications include surveys of soil fauna for ecological and taxonomic studies, biodiversity assessments, and some forensic