Humidity preferendum of soil arthropods

Principle

Heat radiated by a lamp gradually causes soil to dry out. That and the light emitted cause any creatures in a sample to burrow to the bottom where they are sieved into a funnel and collected inside a vessel. The vessel contains moist filter paper in order to capture the creatures alive or otherwise contains a fixing solution. The creatures obtained from the soil in this way can be studied under a normal or a stereo microscope and thus identified.

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