Download or read book Predation and Mutualism in the Ecology of Herbivorous Insects on Bur Oak Quercus Macrocarpa Michx written by Jeffrey Johnson Brokaw and published by . This book was released on 1992 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Plant Provided Food for Carnivorous Insects written by F. L. Wäckers and published by Cambridge University Press. This book was released on 2005-06-23 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plants provide insects with a range of specific foods, such as nectar, pollen and food bodies. In exchange, they may obtain various services from arthropods. The role of food rewards in the plant-pollinator mutualism has been broadly covered. This book, first published in 2005, addresses another category of food-mediated interactions, focusing on how plants employ foods to recruit arthropod 'bodyguards' as a protection against herbivores. Many arthropods with primarily carnivorous lifestyles require plant-provided food as an indispensable part of their diet. Only recently have we started to appreciate the implications of non-prey food for plant-herbivore-carnivore interactions. Insight into this aspect of multitrophic interactions is not only crucial to our understanding of the evolution and functioning of plant-insect interactions in natural ecosystems, it also has direct implications for the use of food plants and food supplements in biological control programs. This edited volume provides essential reading for all researchers interested in plant-insect interactions.
Download or read book Drivers of Insect Herbivory in Pedunculate Oak Quercus Robur from Tree to Biogeographical Scale written by Elena Valdes correcher and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Insect herbivory is an important ecological process that affects plant populations, communities and ecosystems. The distribution and abundance of insect herbivores and their resulting activity are shaped by a multitude of drivers, intrinsic or extrinsic to the host plant, that act at different spatial scales and often in concert. A widely used classification distinguishes between bottom-up forces where herbivore activity is influenced by the distribution and dynamics of the resource stock (including the defenses), and top-down forces where herbivore activity is constrained by drivers of mortality (e.g. predators, pests). Both bottom-up and top-down forces are involved in the trophic cascades that inevitably accompany plant-herbivore interactions in natural plant populations, yet their relative importance can vary greatly depending on the particular study context, and the underlying biological mechanisms remain poorly understood.I investigated the ecological drivers shaping the relationships between Pedunculate oak (Quercus robur) and its insect herbivores across different spatial scales. In particular, I examined the effects of the ecological neighbourhood, the landscape context, tree genetic relatedness and climate on herbivore activity. A major aim of my thesis was to evaluate the relative importance of bottom-up and top-down forces in shaping oak-herbivore relationships.The thesis is structured in three main chapters corresponding to independent manuscripts that are either published (chapter 1), under review (chapter 2) or under preparation (chapter 3) at the moment of submitting the thesis document. In chapter 1 I investigated the relationship between herbivory and the community and activity of insectivorous birds in oak stands that differed in size and connectivity. I found that herbivory, bird predation and bird communities were influenced by landscape characteristics, but neither predation on herbivores nor bird communities had a significant effect on herbivory. In chapter 2 I investigated the relationship between oak genotype, leaf defences and herbivory in the same stands. I found that insect herbivory and leaf defences were not only influenced by landscape characteristics but also by the genotype of the tree, and that insect herbivory decreased with increasing concentration of leaf defences. Finally, in chapter 3 I investigated the effect of large-scale climate variability on the interactions between plants, herbivory and bird predation in oak trees along a latitudinal gradient. I found that climatic factors influenced insect herbivory as well as leaf nutritional traits, while they did not influence leaf defences and bird predation. Furthermore, insect herbivory was only influenced by bottom-up forces (e.g. leaf nutritional traits and leaf defences) and these effects on herbivory varied among herbivore feeding guilds, while neither other traits nor top-down forces affected insect herbivory.Overall, these results help improve our understanding of the different ecological forces shaping insect herbivory and their bottom-up and top-down drivers in natural tree populations. Future studies of plants-herbivores-predator interactions should take into account that these are simultaneously influenced by host plant genotype, landscape characteristics and climate. Finally, the thesis also illustrates the value of citizen science approaches that can combine scientific research with much-needed environmental education.
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1993 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecology of Insect plant Interactions written by Peter J. Edwards and published by Hodder Education. This book was released on 1980 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plants and herbivores; The problems of plants as food for animals; Secondary plant substances as toxins; The value of secondary plant substances for insects: host-plant finding and recognition; The value of secondary plant substances for insects: communication and defense; The role of secondary plant substances in host-plant resistance; The co-evolution of plants and herbivores; Biogeographical implications.
Download or read book Graduate School Commencement written by University of Minnesota. Graduate School and published by . This book was released on 1993 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1992 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Agriculture with Subject Index written by and published by . This book was released on 1993 with total page 964 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Trees in a Changing Environment written by Michael Tausz and published by Springer. This book was released on 2014-08-26 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book delivers current state-of-the-science knowledge of tree ecophysiology, with particular emphasis on adaptation to a novel future physical and chemical environment. Unlike the focus of most books on the topic, this considers air chemistry changes (O3, NOx, and N deposition) in addition to elevated CO2 effects and its secondary effects of elevated temperature. The authors have addressed two systems essential for plant life: water handling capacity from the perspective of water transport; the coupling of xylem and phloem water potential and flow; water and nutrition uptake via likely changes in mycorrhizal relationships; control of water loss via stomata and its retention via cellular regulation; and within plant carbon dynamics from the perspective of environmental limitations to growth, allocation to defences, and changes in partitioning to respiration. The authors offer expert knowledge and insight to develop likely outcomes within the context of many unknowns. We offer this comprehensive analysis of tree responses and their capacity to respond to environmental changes to provide a better insight in understanding likelihood for survival, as well as planning for the future with long-lived, stationary organisms adapted to the past: trees.
Download or read book Endophytes of Forest Trees written by Anna Maria Pirttilä and published by Springer Science & Business Media. This book was released on 2011-07-11 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: Found in every plant species, the diversity of endophytic micro-organisms can be extremely high within different plant organs and tissue types. In trees, their ecological roles with respect to host tree can vary from latent pathogens or saprophytes to neutral commensalists and mutualists. Given their high diversity, and their bio-active nature, endophytes are currently being associated with a role in tree health against insect herbivores and fungal pathogens, as well as improving tree properties in phytoremediation. Meanwhile there is increasing interest in the potential of some tree endophytes as new sources of drug compounds. The first book on tree endophytes in several years, and containing contributions from leading authors in the field, this book provides an important reference text for professional researchers and advanced students.
Download or read book Evolutionary Ecology of Plant Herbivore Interaction written by Juan Núñez-Farfán and published by Springer Nature. This book was released on 2020-07-30 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant-herbivore interactions are a central topic in evolutionary ecology. Historically, their study has been a cornerstone for coevolutionary theory. Starting from classic ecological studies at the phenotypic level, it has since expanded to molecular and genomic approaches. After a historical perspective, the book’s subsequent chapters cover a wide range of topics: from populations to ecosystems; plant- and herbivore-focused studies; in natural and in man-modified ecosystems; and both micro- and macro-evolutionary levels. All chapters include valuable background information and empirical evidence. Given its scope, the book will be of interest to both students and researchers, and will hopefully stimulate further research in this exciting field of evolutionary biology.
Download or read book Baccharis written by Geraldo Wilson Fernandes and published by Springer Nature. This book was released on 2022-02-23 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book has a broad scope and provides a comprehensive overview of the most up-to-date knowledge of the plant genus Baccharis. The book is organized into four major topics encompassing the evolution, ecology, chemistry, as well as environmental and medical applications of the genus. This publication is a major reference for an audience of practising researchers, academics, PhD students, and other scientists in a wide-ranging collection of fields, from Sociology to Medicine to bioeconomy.
Download or read book The Biology of Lichens written by Mason Ellsworth Hale and published by . This book was released on 1974 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nanotechnology in Plant Growth Promotion and Protection written by Avinash P. Ingle and published by John Wiley & Sons. This book was released on 2021-08-16 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discover the role of nanotechnology in promoting plant growth and protection through the management of microbial pathogens In Nanotechnology in Plant Growth Promotion and Protection, distinguished researcher and author Dr. Avinash P. Ingle delivers a rigorous and insightful collection of some of the latest developments in nanotechnology particularly related to plant growth promotion and protection. The book focuses broadly on the role played by nanotechnology in growth promotion of plants and their protection through the management of different microbial pathogens. You’ll learn about a wide variety of topics, including the role of nanomaterials in sustainable agriculture, how nano-fertilizers behave as soil feed, and the dual role of nanoparticles in plant growth promotion and phytopathogen management. You’ll also discover why nanotechnology has the potential to revolutionize the current agricultural landscape through the development of nano-based products, like plant growth promoters, nano-fertilizers, nano-pesticides, and nano-insecticides. Find out why nano-based products promise to be a cost-effective, economically viable, and eco-friendly approach to tackling some of the most intractable problems in agriculture today. You’ll also benefit from the inclusion of: A thorough introduction to the prospects and impacts of using nanotechnology to promote the growth of plants and control plant diseases An exploration of the effects of titanium dioxide nanomaterials on plant growth and the emerging applications of zinc-based nanoparticles in plant growth promotion Practical discussions of nano-fertilizer in enhancing the production potentials of crops and the potential applications of nanotechnology in plant nutrition and protection for sustainable agriculture A concise treatment of nanotechnology in seed science and soil feed Toxicological concerns of nanomaterials used in agriculture Perfect for undergraduate, graduate, and research students of nanotechnology, agriculture, plant science, plant physiology, and crops, Nanotechnology in Plant Growth Promotion and Protection will also earn a place in the libraries of professors and researchers in these areas, as well as regulators and policymakers.
Download or read book Plant Animal Interactions written by Kleber Del-Claro and published by Springer Nature. This book was released on 2021-06-04 with total page 357 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook provides the first overview of plant-animal interactions for twenty years focused on the needs of students and professors. It discusses a range of topics from the basic structures of plant-animal interactions to their evolutionary implications in producing and maintaining biodiversity. It also highlights innovative aspects of plant-animal interactions that can represent highly productive research avenues, making it a valuable resource for anyone interested in a future career in ecology. Written by leading experts, and employing a variety of didactic tools, the book is useful for students and teachers involved in advanced undergraduate and graduate courses addressing areas such as herbivory, trophic relationships, plant defense, pollination and biodiversity.
Download or read book Plant Life of Kentucky written by Ronald Jones and published by University Press of Kentucky. This book was released on 2005-03-25 with total page 854 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant Life of Kentucky is the first comprehensive guide to all the ferns, flowering herbs, and woody plants of the state. This long-awaited work provides identification keys for Kentucky’s 2,600 native and naturalized vascular plants, with notes on wildlife/human uses, poisonous plants, and medicinal herbs. The common name, flowering period, habitat, distribution, rarity, and wetland status are given for each species, and about 80 percent are illustrated with line drawings. The inclusion of 250 additional species from outside the state (these species are “to be expected” in Kentucky) broadens the regional coverage, and most plants occurring from northern Alabama to southern Ohio to the Mississippi River (an area of wide similarity in flora) are examined, including nearly all the plants of western and central Tennessee. The author also describes prehistoric and historical changes in the flora, natural regions and plant communities, significant botanists, current threats to plant life, and a plan for future studies. Plant Life of Kentucky is intended as a research tool for professionals in biology and related fields, and as a resource for students, amateur naturalists, and others interested in understanding and preserving our rich botanical heritage.
Download or read book Radiation Protection Programmes for the Transport of Radioactive Material written by International Atomic Energy Agency and published by . This book was released on 2024-02-29 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Safety Guide provides recommendations on meeting the requirements established in IAEA Safety Standards Series No. SSR-6 (Rev. 1), Regulations for the Safe Transport of Radioactive Material, 2018 Edition, for a radiation protection programme for the transport of radioactive material. The objectives of a radiation protection programme for the transport of radioactive material are to provide for adequate consideration of radiation protection measures in transport; to ensure that the system of radiological protection is adequately applied; to enhance a safety culture in the transport of radioactive material; and to provide practical measures to meet these objectives. The recommendations provided in this Safety Guide are applicable to the transport of radioactive material by all modes on land, water, or in the air, including transport that is incidental to the use of the radioactive material. The intended audience for this Safety Guide includes competent authorities, consignors, carriers, consignees, and operators of ports (e.g. harbours, seaports and airports). It will also be of interest to the employees of public authorities (customs authorities, harbour authorities, port authorities) concerning activities associated with the transport of radioactive material that involve radiation exposure.
