Vertical distribution of fireweed, Epilobium angustifolium, seeds in the air

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Abstract
Wind-transported seeds of Epilobium angustifolium L. were collected with suction traps mounted on a television tower in central Sweden. Average density-height profiles of seeds, up to 93 m aboveground, are presented for four 10-day periods. These data suggest that a large fraction (about 20 to 50%) of dispersing E. angustifolium seeds are more than 100 m above-ground. Many of these seeds are likely to be transported hundreds of kilometres by wind.

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