Abstract
Wind is the only important agent of dispersal of E. regnans F. Muell. seed and most seed is disseminated in the direction of the locally prevailing winds. Seed-trapping studies over several years have shown that dissemination is poor from the edge of a dense forest, but much better from isolated trees. The degree to which the local winds are deflected and obstructed is obviously important. It is concluded that adequate coverage of self-sown seed cannot be expected on completely felled areas which are more than two or three chains wide. Adequate distribution of seed from isolated trees probably depends more on amount of available seed than on efficiency of dissemination.

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