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Author: Sangeetha V. M. Varma Publisher: ISBN: Category : Medical Languages : en Pages : 0
Book Description
The evolution of angiosperms made a paradigm shift in the biology and ecology of animals that lived at that time (Bascompte and Jordano 2007, Bronstein et al. 2006, Endress 2011, Regal 1977, Willmer 2011). The herbivory radiated to various levels, and new traits and taxa evolved once the flowers with pollen grains, nectar, and fleshy fruits evolved (Herre et al. 1996, Mitchell et al. 2009a, Ramos and Schiestl 2019, Strauss and Irwin 2004). In insects, pollen and nectar collecting behavioural and morphological traits and digestive system have been evolved. While many insects used these plant resources as alternate food, many lived only at the cost of pollen and nectar. As a result, plants started relying on animals for dispersing their pollen grains and seeds, and made them an inevitable and reliable mutualistic partner in their reproductive biology. Likewise, many animals have been evolved to use protein and carbohydrates of flower origin. Plant-pollinator and plant-frugivores interactions, thus grew-up as two strong mutualistic interactions between plants and animals. Man depends on these interactions, in particular the plant-pollinator interaction, extensively in their agricultural systems. Today, pollinators have a value of several trillions of rupees or dollars (Potts et al. 2016), particularly for the countries that have an agricultural economy (Gallai et al. 2009).
Author: Sangeetha V. M. Varma Publisher: ISBN: Category : Medical Languages : en Pages : 0
Book Description
The evolution of angiosperms made a paradigm shift in the biology and ecology of animals that lived at that time (Bascompte and Jordano 2007, Bronstein et al. 2006, Endress 2011, Regal 1977, Willmer 2011). The herbivory radiated to various levels, and new traits and taxa evolved once the flowers with pollen grains, nectar, and fleshy fruits evolved (Herre et al. 1996, Mitchell et al. 2009a, Ramos and Schiestl 2019, Strauss and Irwin 2004). In insects, pollen and nectar collecting behavioural and morphological traits and digestive system have been evolved. While many insects used these plant resources as alternate food, many lived only at the cost of pollen and nectar. As a result, plants started relying on animals for dispersing their pollen grains and seeds, and made them an inevitable and reliable mutualistic partner in their reproductive biology. Likewise, many animals have been evolved to use protein and carbohydrates of flower origin. Plant-pollinator and plant-frugivores interactions, thus grew-up as two strong mutualistic interactions between plants and animals. Man depends on these interactions, in particular the plant-pollinator interaction, extensively in their agricultural systems. Today, pollinators have a value of several trillions of rupees or dollars (Potts et al. 2016), particularly for the countries that have an agricultural economy (Gallai et al. 2009).
Author: Aaron T. Dossey Publisher: Academic Press ISBN: 0128028920 Category : Technology & Engineering Languages : en Pages : 404
Book Description
Insects as Sustainable Food Ingredients: Production, Processing and Food Applications describes how insects can be mass produced and incorporated into our food supply at an industrial and cost-effective scale, providing valuable guidance on how to build the insect-based agriculture and the food and biomaterial industry. Editor Aaron Dossey, a pioneer in the processing of insects for human consumption, brings together a team of international experts who effectively summarize the current state-of-the-art, providing helpful recommendations on which readers can build companies, products, and research programs. Researchers, entrepreneurs, farmers, policymakers, and anyone interested in insect mass production and the industrial use of insects will benefit from the content in this comprehensive reference. The book contains all the information a basic practitioner in the field needs, making this a useful resource for those writing a grant, a research or review article, a press article, or news clip, or for those deciding how to enter the world of insect based food ingredients. - Details the current state and future direction of insects as a sustainable source of protein, food, feed, medicine, and other useful biomaterials - Provides valuable guidance that is useful to anyone interested in utilizing insects as food ingredients - Presents insects as an alternative protein/nutrient source that is ideal for food companies, nutritionists, entomologists, food entrepreneurs, and athletes, etc. - Summarizes the current state-of-the-art, providing helpful recommendations on building companies, products, and research programs - Ideal reference for researchers, entrepreneurs, farmers, policymakers, and anyone interested in insect mass production and the industrial use of insects - Outlines the challenges and opportunities within this emerging industry
Author: Donal Murphy-Bokern Publisher: Cabi ISBN: 9781780644981 Category : Business & Economics Languages : en Pages : 0
Book Description
Based on contributions from members of the Legumes Future research consortium and complemented by articles from other research teams, this book provides a comprehensive overview of knowledge relevant to developing legume-supported cropping systems in Europe. It reflects the growing interest in using legumes to improve cropping and the current debate over the imbalance in European systems where the low use of legumes has caused concern in the agricultural policy community. This book supports informed debate and decision-making that addresses the associated challenges. Legumes in Cropping Systems presents current knowledge on this subject across 15 coordinated chapters. Each chapter addresses a specific aspect of legume cropping and provides insight into the relevant literature to help support understanding and explore the underlying processes that influence cropping system development. This book includes coverage of: · the role of legumes in cropping systems; · the role of legumes in European protein supplies; · environmental effects of grain and forage legumes; · current status of the major grain and forage legume crops; · economic effects; and · policy development. Written by an international team of expert authors and presented in full-colour throughout, this book is an invaluable resource for researchers in agronomy and crop sciences, agricultural professionals, policy makers, and students.
Author: Jeff Ollerton Publisher: Pelagic Publishing Ltd ISBN: 1784272299 Category : Science Languages : en Pages : 425
Book Description
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.
Author: Axel G. Rossberg Publisher: John Wiley & Sons ISBN: 1118502175 Category : Science Languages : en Pages : 342
Book Description
Food webs have now been addressed in empirical and theoretical research for more than 50 years. Yet, even elementary foundational issues are still hotly debated. One difficulty is that a multitude of processes need to be taken into account to understand the patterns found empirically in the structure of food webs and communities. Food Webs and Biodiversity develops a fresh, comprehensive perspective on food webs. Mechanistic explanations for several known macroecological patterns are derived from a few fundamental concepts, which are quantitatively linked to field-observables. An argument is developed that food webs will often be the key to understanding patterns of biodiversity at community level. Key Features: Predicts generic characteristics of ecological communities in invasion-extirpation equilibrium. Generalizes the theory of competition to food webs with arbitrary topologies. Presents a new, testable quantitative theory for the mechanisms determining species richness in food webs, and other new results. Written by an internationally respected expert in the field. With global warming and other pressures on ecosystems rising, understanding and protecting biodiversity is a cause of international concern. This highly topical book will be of interest to a wide ranging audience, including not only graduate students and practitioners in community and conservation ecology but also the complex-systems research community as well as mathematicians and physicists interested in the theory of networks. "This is a comprehensive work outlining a large array of very novel and potentially game-changing ideas in food web ecology." —Ken Haste Andersen, Technical University of Denmark "I believe that this will be a landmark book in community ecology ... it presents a well-established and consistent mathematical theory of food-webs. It is testable in many ways and the author finds remarkable agreements between predictions and reality." —Géza Meszéna, Eötvös University, Budapest
Author: National Research Council Publisher: National Academies Press ISBN: 0309102898 Category : Technology & Engineering Languages : en Pages : 327
Book Description
Pollinators-insects, birds, bats, and other animals that carry pollen from the male to the female parts of flowers for plant reproduction-are an essential part of natural and agricultural ecosystems throughout North America. For example, most fruit, vegetable, and seed crops and some crops that provide fiber, drugs, and fuel depend on animals for pollination. This report provides evidence for the decline of some pollinator species in North America, including America's most important managed pollinator, the honey bee, as well as some butterflies, bats, and hummingbirds. For most managed and wild pollinator species, however, population trends have not been assessed because populations have not been monitored over time. In addition, for wild species with demonstrated declines, it is often difficult to determine the causes or consequences of their decline. This report outlines priorities for research and monitoring that are needed to improve information on the status of pollinators and establishes a framework for conservation and restoration of pollinator species and communities.
Author: Krishnan, S., Wiederkehr Guerra, G., Bertrand, D., Wertz-Kanounnikoff, S. and Kettle, C.J. Publisher: Food & Agriculture Org. ISBN: 9251328137 Category : Technology & Engineering Languages : en Pages : 100
Book Description
Most flowering plants, including wild species and many food crops, are pollinated by animals and are vital, therefore, for biological production and the maintenance of biodiversity. Pollinators benefit from diverse natural habitats for forage and nesting, especially when these are limited in plant production systems. Landscape and forest management practices can help ensure the continued availability of pollinators and thereby increase resilience and the productivity of forestry and agriculture. The extent of forests and other natural habitats in a landscape plays a role in determining the species composition of pollinators. Agricultural landscapes adjoining fragmented forests and natural areas benefit from pollinator services, and animal-pollinated crops therefore achieve higher fruit set. Forest management practices can have significant effects on pollinator abundance and diversity. They affect forest variables such as structure, species composition, soil dynamics, hydrology and light availability, all of which can affect pollinator species composition and diversity and plant–pollinator networks. Indigenous and local knowledge can contribute to the conservation of pollinators through traditional management practices. This working paper, which is aimed at forest practitioners, landscape planners and land-use decision-makers, reviews published literature on the impacts of forest and landscape management practices on pollinators. It also addresses the implications of climate change, collates 36 case studies, and makes recommendation on measures for maintaining pollinator diversity and abundance in forests and landscapes
Author: Barbara Gemmill-Herren Publisher: Routledge ISBN: 1317445686 Category : Technology & Engineering Languages : en Pages : 310
Book Description
It is only recently that the immense economic value of pollination to agriculture has been appreciated. At the same time, the alarming collapse in populations of bees and other pollinators has highlighted the urgency of addressing this issue. This book focuses on the specific measures and practices that the emerging science of pollination ecology is identifying to conserve and promote animal pollinators in agroecosystems. It reviews the expanding knowledge base on pollination services, providing evidence to document the status, trends and importance of pollinators to sustainable agricultural production. It provides practical and specific measures that land managers can undertake to ensure that agroecosystems are supportive and friendly to pollinators. It draws on the Global Pollination Project, supported by UNEP/GEF and implemented by FAO and seven partner countries (Brazil, Ghana, India, Kenya, Nepal, Pakistan and South Africa), which serve to provide "lessons from the field".
Author: Sangeetha V. M. Varma
Author: Sangeetha V. M. Varma
Author: Aaron T. Dossey
Author: Graham E. Rotheray
Author: Donal Murphy-Bokern
Author: Jeff Ollerton
Author: Pat Willmer
Author: Axel G. Rossberg
Author: National Research Council
Author: Krishnan, S., Wiederkehr Guerra, G., Bertrand, D., Wertz-Kanounnikoff, S. and Kettle, C.J.
Author: Barbara Gemmill-Herren