... organisms have been picked out. This is because they have significant values and reasons for these values. The tullgren funnel was set up using a certain amount of the leaf litter that acted as a sieve that the organisms could fall through from the humus that was placed on top of the leaf litter. 20g of humus and 10g of leaf litter was used in the tullgren funnel because only a small amount was needed. A 100w bulb was used in both experiments (for each woodland). The organisms were driven, by the drying effect of the bulb, down the tullgren funnel and eventually they fell into the 30cm3 of ethanol. The organisms died but their bodies were preserved so that at the end of five days the different organisms in the ethanol and the larger organisms in the dried up leaf litter could be identified and recorded using a microscope and ...

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