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Plant Evolution in the Mediterranean$
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John D. Thompson

Print publication date: 2005

Print ISBN-13: 9780198515340

Published to Oxford Scholarship Online: September 2007

DOI: 10.1093/acprof:oso/9780198515340.001.0001

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Variation and evolution of reproductive traits in the Mediterranean mosaic

Variation and evolution of reproductive traits in the Mediterranean mosaic

(p.167) Chapter 5 Variation and evolution of reproductive traits in the Mediterranean mosaic
Plant Evolution in the Mediterranean

John D. Thompson

Oxford University Press

This chapter examines the population ecology, variability, and evolution of reproductive traits in the spatially heterogeneous Mediterranean mosaic landscape. Three main themes are explored. First, spatial and temporal pollinator diversity and their effects on floral trait variation and evolution is discussed in the context of generalist and specialist pollination syndromes. Second, the interactive effects of pollination and herbivory on plant fitness and the potential response to natural selection pressures are discussed. Finally, the population ecology and dynamics of different sexual polymorphisms (e.g., gynodioecy, monoecy-dioecy, and heterostyly) are explored in relation to spatial heterogeneity in habitat condition, colonization dynamics, and the spatial configuration of habitats in the landscape. The link between population differentiation and evolutionary transitions is developed.

Keywords:   mating system, sex polymorphism, heterostyly, gynodioecy, dioecy, pollination ecology, herbivory

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