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S.J. Shirtliffe Department of Plant Sciences, University of Saskatchewan Saskatoon, Saskatchewan, S7N 5A8, Canada

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N.C. Kenkel Department of Botany, University of Manitoba Winnipeg, Canada, R3T 2N2

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M.H. Entz Department of Plant Science, University of Manitoba Winnipeg, Manitoba, R3T 2N2, Canada

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This study investigates the relationship between seed dispersal and spatial pattern in a population of wild oats (Avena fatua L.), a common annual weed of arable fields in western Canada. Fractal analysis revealed that wild oats has an aggregated spatial pattern with statistically self-similar properties. Wild oats seed dispersal was successfully modelled using the fractal inverse power law. The estimated fractal dimension of the seed dispersal curve (D = 1.912) is strikingly similar to that of the population's spatial pattern (D =1.881), indicating that the observed spatial pattern is characteristic of the dispersal distribution. This result suggests that the dispersal curve of a given weed species may be used to successfully predict its pattern of invasion.

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Community Ecology
Language English
Size A4
Year of
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2000
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1
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Springer Nature Switzerland AG
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ISSN 1585-8553 (Print)
ISSN 1588-2756 (Online)