Studies on Floral Evolution in Animal-Pollinated Plants
Lloyd, David G., Barrett, Spencer
1996, XIV, 410 p.
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Studies in floral biology are largely concerned with how flowers function to promote pollination and mating. The role of pollination in governing mating patterns in plant populations inextricably links the evolution of pollination and mating systems. Despite the close functional link between pollination and mating, research conducted for most of this century on these two fundamental aspects of plant reproduction has taken quite separate courses. This has resulted in suprisingly little cross-fertilization between the fields of pollination biology on the one hand and plant mating-system studies on the other. The separation of the two areas has largely resulted from the different backgrounds and approaches adopted by workers in these fields. Most pollination studies have been ecological in nature with a strong emphasis on field research and until recently few workers considered how the mechanics of pollen dispersal might influence mating patterns and individual plant fitness. In contrast, work on plant mating patterns has often been conducted in an ecological vacuum largely devoid of information on the environmental and demographic context in which mating occurs. Mating-system research has been dominated by population genetic and theoretical perspectives with surprisingly little consideration given to the proximate ecological factors responsible for causing a particular pattern of mating to occur.
Part One : Historical perspective: Discovery of the secret of nature in the structure and fertilization of flowers-- C. K. Sprengel (translated by P. Haase); Christian Konrad Sprengel's theory of the flower: the cradle of floral ecology-- S. Vogel; Part Two: Conceptual issues: Floral traits and plant adaptation to insect pollinators: a devil's advocate approach-- C.M. Herrera; How do flowers diverge-- P. Wilson and J.D. Thomson; Floral longevity: fitness consequences and resource costs-- T.L. Ashman and D.J. Schoen; Pollen dispersal and mating patterns in animal-pollinated plants-- L.D. Harder and S.C.H. Barrett; The ecology of geitonogamous pollination-- A.A. Snow, T.P. Spira, R. Simpson, and R.A. Klips; Flower size dimorphism in plants with unisexual flowers-- L.F. Delph; Part Three: Model systems: Evolution of floral morphology and function: an integrative approach to adaptation, constraint and compromise in Dalechampia (Euphorbiaceae)-- W.S. Armbruster; The evolution of floral form: insights from an Alpine wildflower, Polemonium viscosum (Polemoniaceae)-- C. Galen; Deceit pollination in the monoecious, neotropical herb Begonia oaxacana (Begoniaceae)-- D.W. Schemske, J. Agren, and J. Le Corff; Reproductive success and gender variation in deceit-pollinated orchids-- A.L. Fritz and L.A. Nilsson; Stylar polymorphisms and the evolution of heterostyly in Narcissus (Amaryllidaceae)-- S.C.H. Barrett, D.G. Lloyd, and J. Arroyo; Evolution of Campanula flowers in relation to insect pollinators on islands-- K. Inoue, M. Maki, and M. Masuda; Index.