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 Paths of Pollen written by Stephen Humphrey and published by McGill-Queen's Press - MQUP. This book was released on 2023-10-15 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: A tiny organism called pollen pulls off one of nature’s key tasks: plant reproduction. Pollination involves a complex network of different species interacting with one another and mutually adapting to their ecosystems, which are constantly changing. Some pollen grains require just a puff of wind to set them in motion, but most plants depend on creatures gifted with mobility. These might be birds, bats, reptiles, or insects including butterflies, beetles, flies, wasps, and over twenty thousand species of bee. In Paths of Pollen Stephen Humphrey asks readers to imagine a tipping point where plants and pollinators can no longer adapt to stressors such as urbanization, modern agriculture, and global climate change. Illuminating the science of pollination ecology through evocative encounters with biologists, conservationists, and beekeepers, Humphrey illustrates the significance of pollination to such diverse concerns as food supply, biodiversity, rising global temperatures, and the resilience of landscapes. As human actions erase habitats and raise the planet’s temperature, plant diversity is dropping and a growing list of pollinators faces decline or even extinction. Paths of Pollen chronicles pollen’s vital mission to spread plant genes, from the prehistoric past to the present, while looking towards an ecologically uncertain future.
Download or read book Pollen and Spores written by S N Agashe and published by CRC Press. This book was released on 2019-10-16 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt: Palynology finds applications in various fields. Some of them are taxonomy, plant evolution, plant breeding programmes, biotechnology, microbiology of water, soil and air, the pharmaceutical industry, cosmetic industry, energy food industry, forensic science, aerobiology, allergy, epidemiology, meteorology, fossil fuel exploration and biodiversity.
Download or read book Aerial Dispersal of Pollen and Spores written by Donald E. Aylor and published by . This book was released on 2017 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Paleoethnobotany written by Deborah M. Pearsall and published by Academic Press. This book was released on 2013-10-22 with total page 483 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the approaches and techniques of paleoethnobotany--the study of the interrelationships between human populations and the plant world through the archaeological record. Its purpose is twofold. First, it assembles in one volume the three major methods of paleoethnobotany, the analysis of macroremains, pollen analysis, and phytolith analysis, for the student or professional interested in the field. Second, it presents on paleoethnobotanist's view of the discipline: its past, present, and future, its strengths and weaknesses, and its role in modern archaeology.ï A comprehensive reference work for archaeologists and paleobotanists interested in reconstructing interrelationships between humans and plants from the archaeological recordï The first general of work theory and methods to emerge from this subdiscipline which has developed during the past twenty yearsï Makes the approaches and techniques of this field more accessible to the general anthropological and botanical audiencesï Offers archaeologists a handbook of field sampling and flotation techniques as well as an introduction to methods of analysis and interpretation in paleoethnobotany
Download or read book The Day of rest written by and published by . This book was released on 1882 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Allergenic Pollen written by Mikhail Sofiev and published by Springer Science & Business Media. This book was released on 2012-09-23 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first book to summarize all aspects of allergenic pollen: production, atmospheric distribution, and health impacts, as well as the means of monitoring and forecasting these phenomena. Based on a four-year effort by a large group of leading European scientists, this book highlights the new developments in research on allergenic pollen, including the modelling prospects and effects of climate change. The multidisciplinary team of authors offers insights into the latest technology of detection of pollen and its allergenic properties, forecasting methods, and the influence of allergenic pollen on the population. The comprehensive coverage in this book makes it an indispensible volume for anyone dealing with allergenic pollen worldwide. Readers involved in environmental health, aerobiology, medicine, and plant science will find this book of interest.
Download or read book Morphology Development and Systematic Relevance of Pollen and Spores written by Michael Hesse and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt: Palynology, the science of fossil and recent spores/pollen grains, is of high importance, both in many pure and applied fields of the natural sciences (e.g. in botany, geology, climatology, archeology and medicine). It is not only an auxiliary science, but can certainly stand for itself. The "classical" palynology subjects, pollen morphology and systematics, are at present influenced by many modern approaches, e.g. from cell biology, analytical electron microscopy, morphometry, up to com- puter-aided-design of threedimensional reconstruction. In recent years fascinating informations have come to light, and new insights have given rise to changing scientific concepts. During the XIV International Botanical Congress, held in Berlin in 1987, a symposium was devoted to important topics of (actuo)palynology. Nine of its innovative, major contributions are presented in this volume. They cover the comparative morphology and the systematic/evolutionary significance of pollen/spores in critical taxa, aspects of pollen development (cytoskeleton), the substructure of sporopollenin, homologies between wall strata of ferns, gymnosperms and angiosperms, and important (but so far underrated) physical aspects of harmomegathy and pollen transport (fluid versus solid mechanics).
Download or read book The Natural History of Plants written by Anton Kerner von Marilaun and published by . This book was released on 1895 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Archives of Internal Medicine written by and published by . This book was released on 1917 with total page 1126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Archives of Internal Medicine written by and published by . This book was released on 1917 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applied Principles of Horticultural Science written by Laurie Brown and published by Routledge. This book was released on 2008-09-10 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: Applied Principles of Horticultural Science is that critical thing for all students of horticulture - a book that teaches the theory of horticultural science through the practice of horticulture itelf. The book is divided into three sections - Plant science, Soil science, Pest and disease. Each section contains a number of chapters relating to a major principle of applied horticulture. Each chapter starts with a key point summary and introduces the underpinning knowledge which is then reinforced by exercises. The book contains over 70 practical exercises, presented in a way that makes students think for themselves. Answers to the exercises are given at the end of chapters. Clear step-by-step instructions make practical work accessible to students of all abilities. This new third edition provides an even wider sweep of case studies to make this book an essential practical workbook for horticulture students and gardners alike. Updated material fits with the latest RHS, City and Guilds and Edexcel syllabus. It is particularly suitable for the RHS Certificate, Advanced Certificate and Edexcel Diplomas as well as for those undertaking NPTC National, Advanced National courses and Horticulture NVQs at levels 2 and 3, together with the new Diploma in Environmental and Land-based studies. Laurie Brown is a horticultural scientist and educator. He is Director of Academex, a consultancy company aspiring to excellence in teaching and learning. Laurie previously worked with the Standards Unit on the design of exemplary teaching resources in the land-based sector.
Download or read book The Americana written by Frederick Converse Beach and published by . This book was released on 1912 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gene Flow from GM Plants written by Guy M. Poppy and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gene flow is not unique to genetically modified (GM) crops, but the possibility of the spread of transgenic DNA to wild and domesticated relatives raises a new set of issues for scientists and policymakers to consider. Unfortunately, we are still too often unable to quantify the risks of ecological damage associated with gene flow. This is due partly to the huge breadth of knowledge required to assemble a comprehensive risk assessment. For example, many scientists active in research on the mechanics of gene flow nevertheless lack a deep understanding of what is required to identify, characterise and assess ecological risk, and many of those who are aware of the risk assessment process and the framework used for legislation have insufficient knowledge of the reproductive biology, agricultural systems, modelling and ecological literature required to compile a balanced risk assessment. This book, set in the context of gene flow in general, considers the assessment, measurement and management of the risks of gene flow from GM plants, combining the expertise of all the various stakeholders. It is directed at researchers and professionals in plant molecular genetics and plant ecology, in both the academic and industrial sectors.
Download or read book The Impact of Desert Dust Across the Mediterranean written by Stefano Guerzoni and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: The atmosphere is an important pathway for the transport of continentally-derived material to the oceans. In this respect the Mediterranean Sea is of special importance because its atmosphere receives inputs of anthropogenic aerosols from the north and desert- derived Saharan dusts from the south. The dusts, much of which is transported in the form of seasonal `pulses', have important effects on climate, marine chemistry and sedimentation in the Mediterranean Sea. This volume brings together reviews and specific-topic papers on the following aspects of Saharan dust transport to the Mediterranean Sea: (i) the modelling of Saharan dust transport, (ii) the chemistry and mineralogy of the dusts and their effect on precipitation, (iii) the contribution of the dusts to marine sedimentation, (iv) the aerobiology of the dusts, and (v) climatic implications of Saharan dust transport. The volume is aimed at students and researchers with an interest in the climate, biogeochemistry and geology of the Mediterranean Sea.
Download or read book Birds and Nature Magazine written by and published by . This book was released on 1900 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Americana written by and published by . This book was released on 1911 with total page 940 pages. Available in PDF, EPUB and Kindle. Book excerpt:
