Patterns of dispersal from entire plants
Patterns of dispersal from entire plants
This chapter discusses approaches that have been used to understand how particular shapes and scales of propagule distributions arise around a parent plant. It begins by contrasting two different methods of collecting dispersal data and two fundamentally different ways of presenting the results. It is shown that the frequency distribution of dispersal distance approaches zero at the source, increases to one (or more) maximum, and declines rapidly to a long tail. In contrast, the density of the seed rain declines rapidly with distance, being greatest close to the source plant. Examples are given of models that are being developed to predict dispersal by multiple vectors and over the entire dispersal season. The chapter concludes with a discussion of research methodologies, since these are critical to the success of future empirical research.
Keywords: parent, distance, model, methodology, shape, scale, vectors, distribution, density, frequency
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