Download or read book Trophic Cascades written by John Terborgh and published by Island Press. This book was released on 2013-06-25 with total page 487 pages. Available in PDF, EPUB and Kindle. Book excerpt: Trophic cascades—the top-down regulation of ecosystems by predators—are an essential aspect of ecosystem function and well-being. Trophic cascades are often drastically disrupted by human interventions—for example, when wolves and cougars are removed, allowing deer and beaver to become destructive—yet have only recently begun to be considered in the development of conservation and management strategies. Trophic Cascades is the first comprehensive presentation of the science on this subject. It brings together some of the world’s leading scientists and researchers to explain the importance of large animals in regulating ecosystems, and to relate that scientific knowledge to practical conservation. Chapters examine trophic cascades across the world’s major biomes, including intertidal habitats, coastal oceans, lakes, nearshore ecosystems, open oceans, tropical forests, boreal and temperate ecosystems, low arctic scrubland, savannas, and islands. Additional chapters consider aboveground/belowground linkages, predation and ecosystem processes, consumer control by megafauna and fire, and alternative states in ecosystems. An introductory chapter offers a concise overview of trophic cascades, while concluding chapters consider theoretical perspectives and comparative issues. Trophic Cascades provides a scientific basis and justification for the idea that large predators and top-down forcing must be considered in conservation strategies, alongside factors such as habitat preservation and invasive species. It is a groundbreaking work for scientists and managers involved with biodiversity conservation and protection.
Download or read book The Trophic Cascade in Lakes written by Stephen R. Carpenter and published by Cambridge University Press. This book was released on 1996-07-13 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 1993 book documents the importance of trophic cascades in aquatic ecology.
Download or read book Trophic Cascade written by Camille T. Dungy and published by Wesleyan University Press. This book was released on 2017-03-07 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: “A soulful reckoning for our twenty-first century, held in focus through echoes of the past and future, but always firmly rooted in now.” —Yusef Komunyakaa, Pulitzer Prize-winning poet Winner of the Colorado Book Award in Poetry (2018) In this fourth book in a series of award-winning survival narratives, Dungy writes positioned at a fulcrum, bringing a new life into the world even as her elders are passing on. In a time of massive environmental degradation, violence and abuse of power, a world in which we all must survive, these poems resonate within and beyond the scope of the human realms, delicately balancing between conflicting loci of attention. Dwelling between vibrancy and its opposite, Dungy writes in a single poem about a mother, a daughter, Smokin’ Joe Frazier, brittle stars, giant boulders, and a dead blue whale. These poems are written in the face of despair to hold an impossible love and a commitment to hope. A readers companion will be available at wesleyan.edu/wespress/readerscompanions. “Dungy asks how we can survive despair and finds her answers close to the earth.” —Diana Whitney, The Kenyon Review “Trophic Cascade frequently bears witness—to violence, to loss, to environmental degradation—but for Dungy, witnessing entails hope.” —Julie Swarstad Johnson, Harvard Review Online “Tension. Simmering. Beneath her matter-of-fact, easy-going, sit-yourself-down, let-me-tell-it-like-it-is clarifying. And her power we take deadly seriously.” —Matt Sutherland, Foreword Reviews “[Trophic Cascade] asks us, in spite of the pain or difficulty of being human today, to find joy and vibrancy in our experiences.” —Elizabeth Flock, PBS Newshour
Download or read book Guidebook to Relative Strangers Journeys into Race Motherhood and History written by Camille T. Dungy and published by W. W. Norton & Company. This book was released on 2017-06-13 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: Finalist for the National Book Critics Circle Award and the Colorado Book Award As a working mother and poet-lecturer, Camille Dungy’s livelihood depended on travel. She crisscrossed America and beyond with her daughter in tow, history shadowing their steps, always intensely aware of how they were perceived, not just as mother and child but as black women. From the San Francisco of settlers’ dreams to the slave-trading ports of Ghana, from snow-white Maine to a festive yet threatening bonfire in the Virginia pinewoods, Dungy finds fear and trauma but also mercy, kindness, and community. Penetrating and generous, this is an essential guide for a troubled land.
Download or read book Ecology of Shallow Lakes written by Marten Scheffer and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ecology of Shallow Lakes brings together current understanding of the mechanisms that drive the diametrically opposite states of water clarity, shown by the cover paintings, found in many shallow lakes and ponds. It gives an outline of the knowledge gained from field observations, experimental work, and restoration studies, linked by a solid theoretical framework. The book focuses on shallow lakes, but the lucid treatment of plankton dynamics, resuspension, light climate and the role of vegetation is relevant to a much wider range of aquatic systems. The models that are used remain simple and most analyses are graphical rather than algebraic. The text will therefore appeal to students, scientists and policy makers in the field of ecology, fisheries, pollution studies and water management, and also to theoreticans who will benefit from the many real-world examples of topics such as predation and competition theory, bifurcation analysis and catastrophe theory. Perhaps most importantly, the book is a remarkable example of how large field experiments and simple models can catalyze our insight into complex ecosystems. Marten Scheffer wrote this book while at the Institute of Inland Water Management and Waste Treatment, RIZA, Lelystad, The Netherlands. He is currently at the Department of Water Quality Management and Aquatic Ecology of the Wageningen Agricultural University. Reviews `Much rarer are textbooks that so succinctly sum up the state-of-the-art knowledge about a subject that they become instant `bibles'. This book is one of these. It is probably one of the best biological textbooks I have read. Scheffer masterfully pulls all this information together under one cover and presents a coherent account, which will serve as a benchmark for the subject. The reader will not gain any great insight into the breeding biology of pike from this book, nor learn much about dragonflies or newts. They will, however, come to understand the essential nature of shallow lakes or, as the author puts it, `how shallow lakes work'. Overall, this book will be of great interest to practical and theoretical ecologists, students and managers in all fields of biology. All freshwater ecologists should certainly read it.' Simon Harrison in Journal of Ecology, 86 `The book by Scheffer can be seen as a milestone in the recognition of shallow lakes as a research topic in its own right. Scheffer uses three approaches concurrently to unravel the functioning of shallow lakes: 1) statistical analysis of large datasets from a variety of lakes; 2) simple abstract models made up of a few non-linear ordinary differential equations, which he calls `mini-models'; and 3) logical reasoning based on a mixture of results from fieldwork, experiments and models. What is new is that Scheffer links mathematics very nicely with what one feels is a correct description of the functioning of a shallow lake. Employing logical reasoning, Scheffer combines all these sources of knowledge into a general, coherent picture of the functioning of a shallow lake.' Wolf Mooij in Aquatic Ecology, 32
Download or read book A Sand County Almanac written by Aldo Leopold and published by Oxford University Press, USA. This book was released on 2020-05 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: First published in 1949 and praised in The New York Times Book Review as "full of beauty and vigor and bite," A Sand County Almanac combines some of the finest nature writing since Thoreau with a call for changing our understanding of land management.
Download or read book Asked What Has Changed written by Ed Roberson and published by Wesleyan University Press. This book was released on 2021-02-09 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Black ecopoet observes the changing world from a high-rise window, “ever alert to affinities between the small and the vast, the fleeting and the cosmic” (James Gibbons, Hyperallergic). Award-winning poet Ed Roberson confronts the realities of an era in which the fate of humanity and the very survival of our planet are uncertain. Departing from the traditional nature poem, Roberson's work reclaims a much older tradition, drawing into poetry’s orbit what the physical and human sciences reveal about the state of a changing world. These poems test how far the lyric can go as an answer to our crisis, even calling into question poetic form itself. Reflections on the natural world and moments of personal interiority are interwoven with images of urbanscapes, environmental crises, and political instabilities. These poems speak life and truth to modernity in all its complexity. Throughout, Roberson takes up the ancient spiritual concern—the ephemerality of life—and gives us a new language to process the feeling of living in a century on the brink.
Download or read book Applying Graph Theory in Ecological Research written by Mark R.T. Dale and published by Cambridge University Press. This book was released on 2017-11-09 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book clearly describes the many applications of graph theory to ecological questions, providing instruction and encouragement to researchers.
Download or read book Food Webs written by Gary A. Polis and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 475 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reflecting the recent surge of activity in food web research fueled by new empirical data, this authoritative volume successfully spans and integrates the areas of theory, basic empirical research, applications, and resource problems. Written by recognized leaders from various branches of ecological research, this work provides an in-depth treatment of the most recent advances in the field and examines the complexity and variability of food webs through reviews, new research, and syntheses of the major issues in food web research. Food Webs features material on the role of nutrients, detritus and microbes in food webs, indirect effects in food webs, the interaction of productivity and consumption, linking cause and effect in food webs, temporal and spatial scales of food web dynamics, applications of food webs to pest management, fisheries, and ecosystem stress. Three comprehensive chapters synthesize important information on the role of indirect effects, productivity and consumer regulation, and temporal, spatial and life history influences on food webs. In addition, numerous tables, figures, and mathematical equations found nowhere else in related literature are presented in this outstanding work. Food Webs offers researchers and graduate students in various branches of ecology an extensive examination of the subject. Ecologists interested in food webs or community ecology will also find this book an invaluable tool for understanding the current state of knowledge of food web research.
Download or read book Encyclopedia of the Anthropocene written by and published by Elsevier. This book was released on 2017-11-27 with total page 2290 pages. Available in PDF, EPUB and Kindle. Book excerpt: Encyclopedia of the Anthropocene, Five Volume Set presents a currency-based, global synthesis cataloguing the impact of humanity’s global ecological footprint. Covering a multitude of aspects related to Climate Change, Biodiversity, Contaminants, Geological, Energy and Ethics, leading scientists provide foundational essays that enable researchers to define and scrutinize information, ideas, relationships, meanings and ideas within the Anthropocene concept. Questions widely debated among scientists, humanists, conservationists, politicians and others are included, providing discussion on when the Anthropocene began, what to call it, whether it should be considered an official geological epoch, whether it can be contained in time, and how it will affect future generations. Although the idea that humanity has driven the planet into a new geological epoch has been around since the dawn of the 20th century, the term ‘Anthropocene’ was only first used by ecologist Eugene Stoermer in the 1980s, and hence popularized in its current meaning by atmospheric chemist Paul Crutzen in 2000. Presents comprehensive and systematic coverage of topics related to the Anthropocene, with a focus on the Geosciences and Environmental science Includes point-counterpoint articles debating key aspects of the Anthropocene, giving users an even-handed navigation of this complex area Provides historic, seminal papers and essays from leading scientists and philosophers who demonstrate changes in the Anthropocene concept over time
Download or read book Food Webs written by John C. Moore and published by Cambridge University Press. This book was released on 2018 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents new approaches to studying food webs, using practical and policy examples to demonstrate the theory behind ecosystem management decisions.
Download or read book Handbook of Trait Based Ecology written by Francesco de Bello and published by Cambridge University Press. This book was released on 2021-03-11 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: Trait-based ecology is rapidly expanding. This comprehensive and accessible guide covers the main concepts and tools in functional ecology.
Download or read book Black Nature written by Camille T. Dungy and published by University of Georgia Press. This book was released on 2009 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: Black Nature is the first anthology to focus on nature writing by African American poets, a genre that until now has not commonly been counted as one in which African American poets have participated. Black poets have a long tradition of incorporating treatments of the natural world into their work, but it is often read as political, historical, or protest poetry--anything but nature poetry. This is particularly true when the definition of what constitutes nature writing is limited to work about the pastoral or the wild. Camille T. Dungy has selected 180 poems from 93 poets that provide unique perspectives on American social and literary history to broaden our concept of nature poetry and African American poetics. This collection features major writers such as Phillis Wheatley, Rita Dove, Yusef Komunyakaa, Gwendolyn Brooks, Sterling Brown, Robert Hayden, Wanda Coleman, Natasha Trethewey, and Melvin B. Tolson as well as newer talents such as Douglas Kearney, Major Jackson, and Janice Harrington. Included are poets writing out of slavery, Reconstruction, the Harlem Renaissance, the Black Arts Movement, and late twentieth- and early twenty-first-century African American poetic movements. Black Nature brings to the fore a neglected and vital means of considering poetry by African Americans and nature-related poetry as a whole. A Friends Fund Publication.
Download or read book Ecology of Predator Prey Interactions written by Pedro Barbosa and published by Oxford University Press. This book was released on 2005-08-11 with total page 709 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses the fundamental issues of predator-prey interactions, with an emphasis on predation among arthropods, which have been better studied, and for which the database is more extensive than for the large and rare vertebrate predators. The book should appeal to ecologists interested in the broad issue of predation effects on communities.
Download or read book Resolving Ecosystem Complexity written by Oswald J. Schmitz and published by Princeton University Press. This book was released on 2010-07-01 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: An ecosystem's complexity develops from the vast numbers of species interacting in ecological communities. The nature of these interactions, in turn, depends on environmental context. How do these components together influence an ecosystem's behavior as a whole? Can ecologists resolve an ecosystem's complexity in order to predict its response to disturbances? Resolving Ecosystem Complexity develops a framework for anticipating the ways environmental context determines the functioning of ecosystems. Oswald Schmitz addresses the critical questions of contemporary ecology: How should an ecosystem be conceptualized to blend its biotic and biophysical components? How should evolutionary ecological principles be used to derive an operational understanding of complex, adaptive ecosystems? How should the relationship between the functional biotic diversity of ecosystems and their properties be understood? Schmitz begins with the universal concept that ecosystems are comprised of species that consume resources and which are then resources for other consumers. From this, he deduces a fundamental rule or evolutionary ecological mechanism for explaining context dependency: individuals within a species trade off foraging gains against the risk of being consumed by predators. Through empirical examples, Schmitz illustrates how species use evolutionary ecological strategies to negotiate a predator-eat-predator world, and he suggests that the implications of species trade-offs are critical to making ecology a predictive science. Bridging the traditional divides between individuals, populations, and communities in ecology, Resolving Ecosystem Complexity builds a systematic foundation for thinking about natural systems.
Download or read book From Populations to Ecosystems written by Michel Loreau and published by Princeton University Press. This book was released on 2010-07-01 with total page 317 pages. Available in PDF, EPUB and Kindle. Book excerpt: The major subdisciplines of ecology--population ecology, community ecology, ecosystem ecology, and evolutionary ecology--have diverged increasingly in recent decades. What is critically needed today is an integrated, real-world approach to ecology that reflects the interdependency of biodiversity and ecosystem functioning. From Populations to Ecosystems proposes an innovative theoretical synthesis that will enable us to advance our fundamental understanding of ecological systems and help us to respond to today's emerging global ecological crisis. Michel Loreau begins by explaining how the principles of population dynamics and ecosystem functioning can be merged. He then addresses key issues in the study of biodiversity and ecosystems, such as functional complementarity, food webs, stability and complexity, material cycling, and metacommunities. Loreau describes the most recent theoretical advances that link the properties of individual populations to the aggregate properties of communities, and the properties of functional groups or trophic levels to the functioning of whole ecosystems, placing special emphasis on the relationship between biodiversity and ecosystem functioning. Finally, he turns his attention to the controversial issue of the evolution of entire ecosystems and their properties, laying the theoretical foundations for a genuine evolutionary ecosystem ecology. From Populations to Ecosystems points the way to a much-needed synthesis in ecology, one that offers a fuller understanding of ecosystem processes in the natural world.
Download or read book Life Between the Tides written by Adam Nicolson and published by Farrar, Straus and Giroux. This book was released on 2022-02-22 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Adam Nicolson explores the marine life inhabiting seashore rockpools with a scientist’s curiosity and a poet’s wonder in this beautifully illustrated book. The sea is not made of water. Creatures are its genes. Look down as you crouch over the shallows and you will find a periwinkle or a prawn, a claw-displaying crab or a cluster of anemones ready to meet you. No need for binoculars or special stalking skills: go to the rocks and the living will say hello. Inside each rock pool tucked into one of the infinite crevices of the tidal coastline lies a rippling, silent, unknowable universe. Below the stillness of the surface course different currents of endless motion—the ebb and flow of the tide, the steady forward propulsion of the passage of time, and the tiny lifetimes of the rock pool’s creatures, all of which coalesce into the grand narrative of evolution. In Life Between the Tides, Adam Nicolson investigates one of the most revelatory habitats on earth. Under his microscope, we see a prawn’s head become a medieval helmet and a group of “winkles” transform into a Dickensian social scene, with mollusks munching on Stilton and glancing at their pocket watches. Or, rather, is a winkle more like Achilles, an ancient hero, throwing himself toward death for the sake of glory? For Nicolson, who writes “with scientific rigor and a poet’s sense of wonder” (The American Scholar), the world of the rock pools is infinite and as intricate as our own. As Nicolson journeys between the tides, both in the pools he builds along the coast of Scotland and through the timeline of scientific discovery, he is accompanied by great thinkers—no one can escape the pull of the sea. We meet Virginia Woolf and her Waves; a young T. S. Eliot peering into his own rock pool in Massachusetts; even Nicolson’s father-in-law, a classical scholar who would hunt for amethysts along the shoreline, his mind on Heraclitus and the other philosophers of ancient Greece. And, of course, scientists populate the pages; not only their discoveries, but also their doubts and errors, their moments of quiet observation and their thrilling realizations. Everything is within the rock pools, where you can look beyond your own reflection and find the miraculous an inch beneath your nose. “The soul wants to be wet,” Heraclitus said in Ephesus twenty-five hundred years ago. This marvelous book demonstrates why it is so. Includes Color and Black-and-White Photographs
