Download or read book The Ecology and Evolution of Wind Pollination written by and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: PhD.
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 0 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 Pollination Biology written by Leslie Real and published by Elsevier. This book was released on 2012-12-02 with total page 357 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pollination Biology reviews the state of knowledge in the field of pollination biology. The book begins by tracing the historical trends in pollination research and the development of the two styles of pollination biology. This is followed by separate chapters on the evolution of the angiosperms; the evolution of plant-breeding systems; the geographical correlations between breeding habit, climate, and mode of pollen transfer; and sexual selection in plants. Subsequent chapters examine the process of sexual selection through gametic competition in Geranium maculatum; the effects of different gene movement patterns on plant population structure; the foraging behavior of pollinators; adaptive nature of floral traits; and competitive interactions among flowering plants for pollinators. The book is designed to provide useful material for advanced undergraduate and graduate students wishing to familiarize themselves with modern pollination biology and also to provide new insights into specific problems for those already engaged in pollination research. The book is intended to be used for both teaching and research.
Download or read book Pollination and Floral Ecology written by Pat Willmer and published by Princeton University Press. This book was released on 2011-07-25 with total page 790 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pollination and Floral Ecology is a very comprehensive reference work to all aspects of pollination biology.
Download or read book Cognitive Ecology of Pollination written by Lars Chittka and published by Cambridge University Press. This book was released on 2001-05-28 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: Important breakthroughs have recently been made in our understanding of the cognitive and sensory abilities of pollinators: how pollinators perceive, memorise and react to floral signals and rewards; how they work flowers, move among inflorescences and transport pollen. These new findings have obvious implications for the evolution of floral display and diversity, but most existing publications are scattered across a wide range of journals in very different research traditions. This book brings together for the first time outstanding scholars from many different fields of pollination biology, integrating the work of neuroethologists and evolutionary ecologists to present a multi-disciplinary approach. Aimed at graduates and researchers of behavioural and pollination ecology, plant evolutionary biology and neuroethology, it will also be a useful source of information for anyone interested in a modern view of cognitive and sensory ecology, pollination and floral evolution.
Download or read book Evolution of Wind pollination in Fraxinus Oleaceae written by Eva Wallander and published by . This book was released on 2001 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Major Evolutionary Transitions in Flowering Plant Reproduction written by Spencer C. H. Barrett and published by University of Chicago Press. This book was released on 2008-11-28 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first volume to address the study of evolutionary transitions in plants, Major Evolutionary Transitions in Flowering Plant Reproduction brings together compelling work from the three areas of significant innovation in plant biology: evolution and adaptation in flowers and pollination, mating patterns and gender strategies, and asexual reproduction and polyploidy. Spencer C. H. Barrett assembles here a distinguished group of authors who address evolutionary transitions using comparative and phylogenetic approaches, the tools of genomics, population genetics, and theoretical modeling, and through studies in development and field experiments in ecology. With special focus on evolutionary transitions and shifts in reproductive characters—key elements of biological diversification and research in evolutionary biology—Major Evolutionary Transitions in Flowering Plant Reproduction is the most up-to-date treatment of a fast-moving area of evolutionary biology and ecology.
Download or read book Pollen and Pollination written by Amots Dafni and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 339 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pollen studies make important contributions nature, into three main themes: pollen struc to our knowledge in many interdisciplinary ture and constituents, pollen evolutionary arenas. Pollen identification is widely used in ecology and the pollen-pollinator interface. reconstruction of, e.g., vegetation, the climate Several papers overlap somewhat or are of the past, and plant biodiversity. Studies perhaps even somewhat contradictory and concerning pollen structure, size and form are reflect the author's own ideas and experience. key issues in basic sciences, as, e.g., plant Some could be understood more deeply by taxonomy and evolution, but are also of consulting other closely related articles. The importance in applied fields as, e.g., plant reader is strongly referred to the respective breeding. In pollination studies pollen is literature list of each article. generally used specifically to identify food ofanther ripening and pollen The last steps development (Pacini) and the mature pollen sources of visitors and to reconstruct their foraging routes. Fewer have been devoted to wall structure (Hesse) are key factors to pollen collection mechanisms and to the struc understand pollen dispersal mechanisms in ture and content of pollen in relation to its biotic pollination (Stroo) as well as abiotic pollination (Ackerman). Pollen size, shape, function.
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 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 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 Obligate Pollination Mutualism written by Makoto Kato and published by Springer. This book was released on 2017-05-09 with total page 310 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 Pollination written by Timothy Walker and published by Princeton University Press. This book was released on 2020-10-06 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: An enticing illustrated look at pollination, one of the most astonishing marvels of the natural world Pollination is essential to the survival of most plants on Earth. Some plants rely on the wind to transport pollen from one flower to another. Others employ an array of ingenious strategies to attract and exploit pollinators, whether they be insects, birds, or mammals. This beautifully illustrated book provides an unprecedented look at the wonders of pollination biology, drawing on the latest science to explain the extraordinarily complex relationship between plant and pollinator, and revealing why pollination is vital for healthy ecosystems and a healthy planet. Timothy Walker offers an engaging introduction to pollination biology and explores the many different tactics of plant reproduction. He shows how wind and water can be effective yet wildly unpredictable means of pollination, and describes the intimate interactions of pollinating plants with bees and butterflies, beetles and birds, and lizards and bats. Walker explores how plants entice pollinators using scents, colors, and shapes, and how plants rely on rewards as well as trickery to attract animals. He sheds light on the important role of pollination in ecology, evolution, and agriculture, and discusses why habitat management, species recovery programs, and other conservation efforts are more critical now than ever. Featuring hundreds of color photos and illustrations, Pollination is suitable for undergraduate study and is an essential resource for naturalists, horticulturalists, and backyard gardeners.
Download or read book The Natural History of Pollination written by Michael Proctor and published by Timber Press (OR). This book was released on 1996 with total page 502 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 1973 as The Pollination of Flowers." "The importance of insects in pollinating flowers is today so well known it is easy to forget that it was discovered little more than two centuries ago: before that, it was believed that the concern of bees with flowers was simply a matter of collecting honey." "But the methods by which pollen reaches the female flower, enabling fertilisation and seed production to take place, include some of the most varied and fascinating mechanisms in the natural world. The Natural History of Pollination describes all the ways in which pollination is brought about: by wind, water, birds, bats and even mice and rats; but principally by a great diversity of insects in an amazing range of ways, some simple, some bizarre." "This book is a unique introduction to a complex yet easily accessible subject of great fascination."--BOOK JACKET.Title Summary field provided by Blackwell North America, Inc. All Rights Reserved
Download or read book Pollinators and Pollination written by Jeff Ollerton and published by Pelagic Publishing Ltd. This book was released on 2021-01-18 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt: A unique and personal insight into the ecology and evolution of pollinators, their relationships with flowers, and their conservation in a rapidly changing world. The pollination of flowers by insects, birds and other animals is a fundamentally important ecological function that supports both the natural world and human society. Without pollinators to facilitate the sexual reproduction of plants, the world would be a biologically poorer place in which to live, there would be an impact on food security, and human health would suffer. Written by one of the world’s leading pollination ecologists, this book provides an introduction to what pollinators are, how their interactions with flowers have evolved, and the fundamental ecology of these relationships. It explores the pollination of wild and agricultural plants in a variety of habitats and contexts, including urban, rural and agricultural environments. The author also provides practical advice on how individuals and organisations can study, and support, pollinators. As well as covering the natural history of pollinators and flowers, the author discusses their cultural importance, and the ways in which pollinator conservation has been portrayed from a political perspective. The book draws on field work experiences in South America, Africa, Australia, the Canary Islands and the UK. For over 30 years the author has spent his career researching how plants and pollinators evolve relationships, how these interactions function ecologically, their importance for society, and how we can conserve them in a rapidly changing world. This book offers a unique and personal insight into the science of pollinators and pollination, aimed at anyone who is interested in understanding these fascinating and crucial ecological interactions.
Download or read book Floral Biology written by David G Lloyd and published by . This book was released on 1995-12-01 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biomechanical and Ecological Insights on Evolutionary Transitions from Animal to Wind Pollination in Flowering Plants written by David Timerman and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wind pollination (anemophily) has evolved from animal pollination (zoophily) at least 65 times among angiosperm lineages and is associated with a characteristic syndrome of floral traits, probably reflecting convergent adaptation to aerodynamically driven processes. In this thesis, I investigated the floral trait modifications promoting wind pollination, their fitness effects in contrasting environments, and the evolutionary significance of ambophily, in which both wind and insect pollination occur. I focused on traits promoting pollen release in air because it is the critical first stage of wind pollination and is constrained in most zoophilous taxa. I begin by reviewing the aerodynamic principles governing pollen release to identify likely targets of selection for anemophily. I then performed a comparative biomechanical analysis of pollen release using Thalictrum (Ranunculaceae), an herbaceous genus with multiple independent transitions between pollen vectors. I demonstrated that turbulence-induced vibration of stamens is the primary mechanism of pollen release, and is more likely to occur in species with lower natural frequencies, an intrinsic property of materials in which length and mass vary inversely. I also investigated intraspecific variation in natural frequency and its effects on fitness in dioecious ambophilous T. pubescens. I detected heritable population differences in natural frequency and thus pollen release, and demonstrated using field experiments that selection favours lower natural frequencies when pollinators limit seed set. I then investigated the evolutionary stability of ambophily in T. pubescens by evaluating how variation in density and sex ratio affects pollination success through animal versus wind pollination. I demonstrated that fitness losses resulting from declining pollinator service are offset by wind pollination suggesting that the reproductive flexibility provided by ambophily may be adaptive in populations facing demographic uncertainty. Finally, I examined factors causing male-biased sex ratios in T. pubescens. Several lines of evidence indicated that the bias is likely established early in the life cycle, perhaps at the seed stage, perhaps reflecting an adaptive bias of the primary sex ratio. My thesis provides novel results and insights on the biomechanics of wind pollination and the microevolutionary processes operating during the early stages in the transition from animal to wind pollination.
