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Frugivores and seed dispersal (Paperback, Softcover reprint of the original 1st ed. 1986)
Loot Price: R8,626
Discovery Miles 86 260
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Frugivores and seed dispersal (Paperback, Softcover reprint of the original 1st ed. 1986)
Series: Tasks for Vegetation Science, 15
Expected to ship within 10 - 15 working days
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A wide variety of plants, ranging in size from forest floor herbs
to giant canopy trees, rely on animals to disperse their seeds.
Typical values of the proportion of tropical vascular plants that
produce fleshy fruits and have animal-dispersed seeds range from
50-90%, depending on habitat. In this section, the authors discuss
this mutualism from the plant's perspective. Herrera begins by
challenging the notion that plant traits traditionally interpreted
as being the product of fruit-frugivore coevolution really are the
outcome of a response-counter-response kind of evolutionary
process. He uses examples of congeneric plants living in very
different biotic and abiotic environments and whose fossilizable
characteristics have not changed over long periods of time to argue
that there exists little or no basis for assuming that gradualistic
change and environmental tracking characterizes the interactions
between plants and their vertebrate seed dispersers. A common theme
that runs through the papers by Herrera, Denslow et at. , and
Stiles and White is the importance of the 'fruiting environment'
(i. e. the spatial relationships of conspecific and non-conspecific
fruiting plants) on rates of fruit removal and patterns of seed
rain. Herrera and Denslow et at. point out that this environment is
largely outside the control of individual plant species and, as a
result, closely coevolved interactions between vertebrates and
plants are unlikely to evolve.
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