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 On the Path of Pollen written by Nora Yazzie Hunter and published by . This book was released on 1993 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pollen Path written by Margaret Schevill and published by . This book was released on 1956 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Pollen Path written by and published by Kiva Publishing. This book was released on 1998 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: Originally published in 1956, this classic volume presents the essence of the Navajo Way, its stories and traditions. The stories are complemented by Navajo artist Andy Tsihnajinnie's line drawings, Dr. Joseph Henderson's psychological commentary, and Linle's first-hand observations of Navajo ceremonial life.
Download or read book The Shamanic Way of the Bee written by Simon Buxton and published by Simon and Schuster. This book was released on 2006-01-06 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reveals for the first time the ancient tradition of bee shamanism and its secret practices and teachings • Examines the healing and ceremonial powers of the honeybee and the hive • Reveals bee shamanism’s system of acupuncture, which predates the Chinese systems • Imparts teachings from the female tradition and explores the transformative powers of the magico-sexual elixirs they produce Bee shamanism may well be the most ancient and enigmatic branch of shamanism. It exists throughout the world--wherever in fact the honeybee exists. Its medicinal tools--such as honey, pollen, propolis, and royal jelly--are now in common usage, and even the origins of Chinese acupuncture can be traced back to the ancient practice of applying bee stings to the body’s meridians. In this authoritative ethnography and spiritual memoir, Simon Buxton, an elder of the Path of Pollen, reveals for the first time the richness of this tradition: its subtle intelligence; its sights, sounds, and smells; and its unique ceremonies, which until now have been known only to initiates. Buxton unknowingly took his first steps on the Path of Pollen at age nine, when a neighbor--an Austrian bee shaman--cured him of a near-fatal bout of encephalitis. This early contact prepared him for his later meeting with an elder of the tradition who took him on as an apprentice. Following an intense initiation that opened him to the mysteries of the hive mind, Buxton learned over the next 13 years the practices, rituals, and tools of bee shamanism. He experienced the healing and spiritual powers of honey and other bee products, including the “flying ointment” once used by medieval witches, as well as ritual initiations with the female members of the tradition--the Mellisae--and the application of magico-sexual “nektars” that promote longevity and ecstasy. The Shamanic Way of the Bee is a rare view into the secret wisdom of this age-old tradition.
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 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 Analog Superpowers written by Katherine C. Epstein and published by University of Chicago Press. This book was released on 2024-10-01 with total page 387 pages. Available in PDF, EPUB and Kindle. Book excerpt: A gripping history that spans law, international affairs, and top-secret technology to unmask the tension between intellectual property rights and national security. At the beginning of the twentieth century, two British inventors, Arthur Pollen and Harold Isherwood, became fascinated by a major military question: how to aim the big guns of battleships. These warships—of enormous geopolitical import before the advent of intercontinental missiles or drones—had to shoot in poor light and choppy seas at distant moving targets, conditions that impeded accurate gunfire. Seeing the need to account for a plethora of variables, Pollen and Isherwood built an integrated system for gathering data, calculating predictions, and transmitting the results to the gunners. At the heart of their invention was the most advanced analog computer of the day, a technological breakthrough that anticipated the famous Norden bombsight of World War II, the inertial guidance systems of nuclear missiles, and the networked “smart” systems that dominate combat today. Recognizing the value of Pollen and Isherwood’s invention, the British Royal Navy and the United States Navy pirated it, one after the other. When the inventors sued, both the British and US governments invoked secrecy, citing national security concerns. Drawing on a wealth of archival evidence, Analog Superpowers analyzes these and related legal battles over naval technology, exploring how national defense tested the two countries’ commitment to individual rights and the free market. Katherine C. Epstein deftly sets out Pollen’s and Isherwood’s pioneering achievements, the patent questions raised, the geopolitical rivalry between Britain and the United States, and the legal precedents each country developed to control military tools built by private contractors. Epstein’s account reveals that long before the US national security state sought to restrict information about atomic energy, it was already embroiled in another contest between innovation and secrecy. The America portrayed in this sweeping and accessible history isn’t yet a global hegemon but a rising superpower ready to acquire foreign technology by fair means or foul—much as it accuses China of doing today.
Download or read book Cognitive Ecology of Pollination written by Lars Chittka and published by Cambridge University Press. This book was released on 2005-08-22 with total page 360 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, such as how pollinators perceive, memorize, 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 outstanding scholars from many different fields of pollination biology, integrating the work of neuroethologists and evolutionary ecologists to present a multidisciplinary approach.
Download or read book Pollen Biology written by K.R. Shivanna and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pollen grains are everywhere - in the air, in the water, in soil and in the food we eat. Pollen has direct relevance in agriculture, horticulture, plant breeding, crop improvement and biotechnology. They are further of use for montioring cytotoxic effects - by herbicides, pesticides and pollutants - testing for allergic reactions, and for basic studies on gene expression, research on differentiation and polarity. Detailed instructions of the standard techniques, which have all been tested and improvised by the authors, are given, such as collection and storage of pollen, pollen culture, germination, tests for viability, incompatibility and isolation of protoplasts. Introduced by an explanation of the principles involved, the step-by step protocols are complemented by personal notes and precautions, specifying the reagents used and various appendices on basic and specific requirements for laboratory exercises on pollen.
Download or read book Annual Plant Reviews Plant Cell Separation and Adhesion written by Jeremy A. Roberts and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cell separation is an important process that occurs throughout the life cycle of a plant. It enables the radicle to emerge from the germinating seed, vascular tissue to differentiate, sculpturing of leaves and flowers to take place, pollen to be shed from the mature anther, fruit to soften, senescent and non-functional organs to be lost, and seeds to be shed. In addition to its intrinsic scientific interest, many of the developmental processes to which it contributes have importance for agriculture and horticulture. This is the first volume to focus exclusively on these processes and to link improvements in our scientific understanding with methods that may allow us to manipulate cell separation and adhesion to the benefit of the agricultural and horticultural industries. It will therefore be of interest to the experimental scientist and to those who wish to apply these techniques commercially.
Download or read book An Introduction to Pollen Analysis written by G. Erdtman and published by Read Books Ltd. This book was released on 2013-04-18 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: It has long been the custom among those making pollen surveys to expose microscope slides coated with a suitable adhesive and examine them for the pollen grains caught. The counts of the various species are tabulated each day and at the end of the season drawn into a graph or pollen spectrum, as it is called , which gives a clear picture of the relative amounts of the different kinds of pollen which are floating in the air from day to day throughout the growing season If done in the north temperate zone such a spectrum will show the pollen of the early flowering trees, at first a trickle, as the junipers, alders and hazels flower, then a deluge as the birches, oaks and pines and many other trees cast their pollen to the air. This is generally followed by a long stream of grass pollen, fluctuating from week to week as the various species come into flower, reach their zenith, then die out giving way to succeeding species And toward the end of the summer pollens of the late flowering weeds make their appearance, nowadays in most places completely dominated by that of the ragweed. If the record is repeated the following year the spectrum will be nearly the same The succession can be counted on to repeat itself with subtle change from year to year for many years to come, unless some cataclysm changes the surrounding vegetation which contributes to the pollen spectrum, for it is always a faithful representation of the surrounding vegetation.
Download or read book A Mountain to the North a Lake to the South Paths to the West a River to the East written by László Krasznahorkai and published by New Directions Publishing. This book was released on 2022-11-08 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: A quiet, poetic, and exquisitely gorgeous novel describing a wandering mythic figure in a Kyoto monastery, by the National Book Award winner The grandson of Prince Genji lives outside of space and time and wanders the grounds of an old monastery in Kyoto. The monastery, too, is timeless: a place of prayer and deliverance, with barely a trace of any human presence. The wanderer is searching for a garden that has long captivated him: “he continually saw the garden in his mind’s eye without being able to touch its existence.” This exquisitely beautiful novel by National Book Award–winner László Krasznahorkai—perhaps his most serene and poetic work—describes a search for the unobtainable and the riches to be discovered along the way. Despite the difficulties in finding the garden, the reader is closely introduced to the construction processes of the monastery (described in poetic detail) as well as the geological and biological processes of the surrounding area (the underground layers revealed beneath a bed of moss, the travels of cypress-tree seeds on the wind, feral foxes and stray dogs meandering outside the monastery’s walls), making this an unforgettable meditation on nature, life, history, and being.
Download or read book Pollen 1877 written by Michael Pakenham Edgeworth and published by . This book was released on 2008-06 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: This scarce antiquarian book is a facsimile reprint of the original. Due to its age, it may contain imperfections such as marks, notations, marginalia and flawed pages. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions that are true to the original work.
Download or read book Pollen written by Rob Kesseler and published by Andreas Papadakis Publishers. This book was released on 2006-01-01 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pollen grains have fascinated the scientifically curious since the 17th century. They are minute, almost impossible to see without a high-powered microscope, and remain hidden beyond the beauty o the flower until the moment of release. Then the grains, like alien spaceships, are carried by wind, water or animal to achieve their purpose of procreation. This beautifully produced and highly original book by an artist and botanical scientist portrays the perfect designs of these microscopic organisms. Special light and scanning electron microscopy are used to obtain astonishing images of pollen grains, which are combined with exquisite photographs of the parent plants. Pollen describes and illustrates in minute detail the reproductive workings of plants ranging from tulips and lilies to orchids and palms. The structure and form of pollen set the scene for the remarkable events that occur from pollination to fertilization.
Download or read book POLLEN written by PAKENHAM. EDGEWORTH and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Paths of Change written by Will McWhinney and published by SAGE Publications, Incorporated. This book was released on 1992-02-11 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: This innovative book outlines a new theory and practice of change which explicity takes account of different world views and the need to reconcile and go beyond these in effecting major change.
