Download or read book Pollination Ecology and Evolution in Compositae Asteraceae written by M. S. Mani and published by . This book was released on 1999 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text summarizes the results of studies on the pollination ecology of the unique family Compositae (Asteraceae). The complex structural and functional specializations of the capitulum (or head) for pollinator attraction and pollen transfer are described in detail. An attempt is made to identify the influence of these specializations on the development and the function of other floral parts. The remarkable sex polymorphism of the Compositae head, which has caused much confusion amongst students is traced to this influence and characterized as a secondary modification. The central concept in the book is taht pollination ecology is the guiding factor in Compositae evolution.
Download or read book Secondary Pollen Presentation written by P.F. Yeo and published by Springer. This book was released on 2012-02-25 with total page 269 pages. Available in PDF, EPUB and Kindle. Book excerpt: Secondary pollen presentation is presentation of pollen to vectors by structures other than anthers, either passively or via a specialized protection and delivery system. The main part of the book describes secondary pollen presentation genus-by-genus in 25 families. The subject has never been extensively reviewed, although secondary pollen presentation occurs in the largest family of flowering plants, the Asteraceae (Compositae), and a large family of great economic importance, the Leguminosae. Now material from the scattered literature is brought together and supplemented with original observations. Many species are illustrated and each family is individually discussed. The last two chapters provide an overview of the whole topic. All the main functions that secondary pollen presentation may perform can be carried out in other plants without it. It is concluded from this that the evolution of secondary pollen presentation has been subject to constraint and canalization. The floral biology of most plants with secondary pollen presentation has not been adequately studied. Appendix 1 points to a wide range of topics on which research at various technical and academic levels is needed. The book should also become a reference work for morphologists, systematists, and floral ecologists.
Download or read book Secondary Pollen Presentation written by Peter Yeo and published by Springer Verlag. This book was released on 1993 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Evolutionary Basis for Pollination Ecology written by Willemstein and published by BRILL. This book was released on 2023-08-21 with total page 439 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Study on Floral Evolution in Relation to Pollination Ecology written by Elmar E. Leppik and published by . This book was released on 1988 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Systematics Evolution and Biogeography of Compositae written by Vicki Ann Funk and published by . This book was released on 2009 with total page 1008 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This spectacular book does full justice to the Compositae (Asteraceae), the largest and most successful flowering plant family with some 1700 genera and 24,000 species. It is an indispensable reference, providing the most up-to-date hypotheses of phylogenetic relationships in the family based on molecular and morphological characters, along with the corresponding subfamilial and tribal classification. The 2009 work not only integrates the extensive molecular phylogenetic analyses conducted in the last 25 years, but also uses these to produce a metatree for about 900 taxa of Compositae. The book contains 44 chapters, contributed by 80 authors, covering the history, economic importance, character variation, and systematic and phylogenetic diversity of the family. The emphasis of this work is phylogenetic; its chapters provide a detailed, current, and thoroughly documented presentation of the major (and not so major) clades in the family, citing some 2632 references. Like the Compositae, the book is massive, diverse, and fascinating. It is beautifully illustrated, with 170 figures, and an additional 108 cladograms (all consistently color-coded, based on the geographic range of the included taxa); within these figures are displayed 443 color photographs, clearly demonstrating the amazing array of floral and vegetative form expressed by members of the clade." --NHBS Environment Bookstore.
Download or read book The Natural History of Pollination Collins New Naturalist Library Book 83 written by Michael Proctor and published by HarperCollins UK. This book was released on 2012-11-29 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a brand new, fully updated edition of the natural history classic first published in the New Naturalist series in 1973 as The Pollination of Flowers. This edition is exclusive to newnaturalists.com
Download or read book Obligate Pollination Mutualism written by Makoto Kato and published by Springer. This book was released on 2018-05-09 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a comprehensive overview of our current understanding of mutualism origin, plant–pollinator specificity, mutualism stability, and reciprocal diversification. In particular, it focuses on the natural history and evolutionary history of the third example of obligate pollination mutualism, leafflower–leafflower moth association, which was discovered in the plant family Phyllanthaceae by the lead editor and then established by the editors and their coworkers as an ideal model system for studies of mutualism and the coevolutionary process. This work brings together the knowledge they have gained through an array of research conducted using different approaches, ranging from taxonomy, phylogenetics, ecology, and evolutionary biology to biogeography. Richly illustrated with numerous original color photographs, the volume consists of 13 chapters and is divided into three main parts: natural history, ecology, and evolution. It begins by showcasing numerous examples of plant–animal interactions and their origins to guide readers in the world of leafflowers and their pollinators. The immense diversity of Phyllanthaceae and pollinator moths is then explored, and in the following 7 chapters mutualism is discussed from a range of ecological and evolutionary points of view. The final chapter presents a review of the evolution and variety of obligate pollination mutualisms. This book offers researchers and students in the field of ecology, botany, evolutionary biology, pollination biology, entomology, and tropical biology fascinating insights into why such a costly pollination system has evolved and why Phyllanthaceae is so diverse despite the inconspicuousness of their flowers.
Download or read book Evolution of Plant Pollinator Relationships written by Sébastien Patiny and published by Cambridge University Press. This book was released on 2011-12-08 with total page 501 pages. Available in PDF, EPUB and Kindle. Book excerpt: What are the evolutionary mechanisms and ecological implications behind a pollinator choosing its favourite flower? Sixty-five million years of evolution has created the complex and integrated system which we see today and understanding the interactions involved is key to environmental sustainability. Examining pollination relationships from an evolutionary perspective, this book covers both botanical and zoological aspects. It addresses the puzzling question of co-speciation and co-evolution and the complexity of the relationships between plant and pollinator, the development of which is examined through the fossil record. Additional chapters are dedicated to the evolution of floral displays and signalling, as well as their role in pollination syndromes and the building of pollination networks. Wide-ranging in its coverage, it outlines current knowledge and complex emerging topics, demonstrating how advances in research methods are applied to pollination biology.
Download or read book Style Diversity in Asteraceae Morphology Anatomy Phylogeny and Function written by Claudia Erbar and published by . This book was released on 2021-01-07 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study is the most comprehensive and up-to-date overview of style morphology and anatomy of the plant family Asteraceae (or Compositae; asters, daisies, sunflowers), using the most current generalized phylogenetic tree based on molecular data as reference. The Asteraceae are the largest plant family (one out of about every 10 species of the flowering plants belongs to this family); they include about 25,000 currently accepted species in 14 subfamilies and 44 tribes. The authors distinguish 49 style types in the Asteraceae. The style characters are compared with other features that indicate a systematic relationship. The style of an individual flower of the Asteraceae is one of the most important floral organs in two respects: Firstly, the characteristics of the style contribute to the systematics of the family, secondly, the different forms of styles are of utmost importance to secondary pollen presentation. The latter allows for optimizing pollination by pollen portioning, a widespread phenomenon in angiosperms. Combining both morphology and function, the style types represent eight possibilities of secondary pollen presentation, which can be subsumed into four main functional categories. Style characteristics and mechanisms of secondary pollen presentation are plotted in up-to-date phylogenetic trees to illustrate and discuss possible evolutionary trends in the Asteraceae. Evaluating style characters and the position of the style tip within the anther tube shortly before anthesis now allows; in most cases; to easily predict the mechanism of secondary pollen presentation. The different style types are exquisitely illustrated by high quality greyscale and colour images and numerous line drawings. The study is complemented by extensive bibliography, a table of the specimens studied (species, collection, etc.) and an index. This style atlas is useful not only to botanists (especially synantherologists) and entomologists, but addresses a wider audience interested more generally in the systematics of flowering plants and the evolution of floral characters and function.
Download or read book Plant Pollinator Interactions written by Nickolas Merritt Waser and published by University of Chicago Press. This book was released on 2006-01-15 with total page 459 pages. Available in PDF, EPUB and Kindle. Book excerpt: Publisher description
Download or read book Pollination and Floral Ecology written by Blake Hughes and published by Murphy & Moore Publishing. This book was released on 2021-11-16 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: Flowers are structures produced by angiosperms or flowering plants. Their evolutionary history has been shaped by their association with pollinators, primarily insects. The transfer of pollen grains from the stamens to the ovules, or pollination, is an essential aspect of plant reproduction. In flowering plants, the ovules are contained within the pistil, and the pollen is generally deposited on the stigma, which is the receptive surface of the pistil. In conifers and cycads, the ovules are exposed and the pollen is caught in the fluid secreted by the ovule. This process is mediated by insects, vertebrates (bats and birds), certain mammals and some lizards. Such interaction between flowers and their pollinators are mutualistic. These influence floral ecology and are believed to have led to the wide diversity of pollinators today. This book contains some path-breaking studies in pollination and floral ecology. It will also provide interesting topics for research which interested readers can take up. A number of latest researches have been included to keep the readers up-to-date with the global concepts in this area of study.
Download or read book Flowering Plants written by Klaus Kubitzki and published by . This book was released on 1977 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Ecology and Evolution of Wind Pollination written by Jannice Friedman and published by . This book was released on 2009 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: The evolution of wind pollination (anemophily) has occurred at least 65 times in the flowering plants and over 10% of angiosperm species are wind pollinated. However the pollination and mating of anemophily species is poorly understood, particularly in comparison with animal-pollinated species. My thesis employs a range of approaches and tools to examine the evolution and ecology of wind pollination. These include comparative analyses, theoretical modeling, field and glasshouse experiments, the use of genetic markers and quantitative genetics. Experimental studies on diverse taxa were used to address questions concerned with the efficacy of outcrossing mechanisms, the ecological and demographic context of pollination and mating, and the plasticity of sex allocation.Comparative analyses indicated that wind pollination is correlated with unisexual flowers, reduced ovule number, small unshowy flowers, an absence of nectar, and open habitats. These analyses also demonstrated that anemophily originates more often in lineages with unisexual flowers. This suggests that wind pollination evolves in diclinous taxa as a mechanism of reproductive assurance because autonomous selfing is mechanically precluded. Empirical data on stigmatic pollen loads in 19 anemophilous species challenge the widespread assumption that anemophilous plants commonly have uniovulate flowers because they capture few pollen grains. Further, a model based on floral costs and the aerodynamics of pollen capture demonstrated that when flowers are inexpensive it is optimal to produce many flowers each with few ovules, because this allows more efficient sampling of the airstream.Manipulative field experiments on seven Carex species indicated that neither monoecy nor protogyny, two putative outcrossing mechanisms, are effective at limiting selfing. Based on these results I suggest that geitonogamy can provide reproductive assurance in anemophilous species with unisexual flowers. Field experiments and the application of sex-specific markers in Rumex nivalis revealed that the local neighbourhood of maternal plants affects pollination intensity and progeny sex ratios. Finally, I demonstrated that plant density in Ambrosia artemisiifolia affects stigmatic pollen loads but not outcrossing rates. Through a quantitative genetics experiment in A. artemisiifolia, I detected significant genetic variation for plasticity in sex allocation, potentially enabling adaptive adjustment of sex allocation to local environmental conditions.
Download or read book Nectaries and Nectar written by Susan W. Nicolson and published by Springer Science & Business Media. This book was released on 2007-04-18 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nectar is the most important reward offered by plants to pollinating animals. This book is a modern and interdisciplinary text on nectar and nectaries, prompted by the expansion of knowledge in ecological and molecular fields, and the strong recent interest in pollination biology. The topics covered vary widely: they include historical aspects, the structure and ultrastructure of nectaries and relationships to plant systematics, the dynamics of nectar secretion, nectar chemistry and the molecular biology of defence proteins, and more.
Download or read book Floral Biology written by David G. Lloyd and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Asteraceae written by Kåre Bremer and published by Timber Press (OR). This book was released on 1994 with total page 772 pages. Available in PDF, EPUB and Kindle. Book excerpt: The result is the most comprehensive elucidation of the evolutionary relationships of the Asteraceae and of the groups within it, and an exhaustive classification of the family. All available information on the phylogeny of the family has here been assembled in one volume; included are more than 50 cladograms and phylogenetic trees, many of them from new and hitherto unpublished cladistic analyses. In addition to introductory chapters on cladistics, classification, morphology, and evolution, the book also includes chapters on each of the sub-families and tribes, with illustrations of morphological details, as well as descriptions of all genera. Several of these chapters were provided by Arne A. Anderberg, Per Ola Karis, Bertil Nordenstam, Johannes Lundberg, and Olof Ryding, from the Swedish Museum of Natural History in Stockholm and from the Department of Systematic Botany at Uppsala University, Sweden.
