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Trophic Cascades

Trophic Cascades Author John Terborgh
ISBN-10 1597268194
Release 2013-06-25
Pages 488
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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.



The Trophic Cascade in Lakes

The Trophic Cascade in Lakes Author Stephen R. Carpenter
ISBN-10 0521566843
Release 1996-07-13
Pages 400
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This 1993 book documents the importance of trophic cascades in aquatic ecology.



The Wolf s Tooth

The Wolf s Tooth Author Cristina Eisenberg
ISBN-10 1597268186
Release 2013-03-05
Pages 272
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Animals such as wolves, sea otters, and sharks exert a disproportionate influence on their environment; dramatic ecological consequences can result when they are removed from—or returned to—an ecosystem. In The Wolf's Tooth, scientist and author Cristina Eisenberg explores the concept of "trophic cascades" and the role of top predators in regulating ecosystems. Her fascinating and wide-ranging work provides clear explanations of the science surrounding keystone predators and considers how this notion can help provide practical solutions for restoring ecosystem health and functioning. Eisenberg examines both general concepts and specific issues, sharing accounts from her own fieldwork to illustrate and bring to life the ideas she presents. She considers how resource managers can use knowledge about trophic cascades to guide recovery efforts, including how this science can be applied to move forward the bold vision of rewilding the North American continent. In the end, the author provides her own recommendations for local and landscape-scale applications of what has been learned about interactive food webs. At their most fundamental level, trophic cascades are powerful stories about ecosystem processes—of predators and their prey, of what it takes to survive in a landscape, of the flow of nutrients. The Wolf's Tooth is the first book to focus on the vital connection between trophic cascades and restoring biodiversity and habitats, and to do so in a way that is accessible to a diverse readership.



Serendipity

Serendipity Author James A. Estes
ISBN-10 9780520960633
Release 2016-05-17
Pages 256
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To newly minted biologist James Estes, the sea otters he was studying in the leafy kelp forests off the coast of Alaska appeared to have an unbalanced relationship with their greater environment. Gorging themselves on the sea urchins that grazed among the kelp, these small charismatic mammals seemed to give little back in return. But as Estes dug deeper, he unearthed a far more complex relationship between the otter and its underwater environment, discovering that otters play a critical role in driving positive ecosystem dynamics. While teasing out the connective threads, he began to question our assumptions about ecological relationships. These questions would ultimately inspire a lifelong quest to better understand the surprising complexity of our natural world and the unexpected ways we discover it. Serendipity tells the story of James Estes’s life as a naturalist and the concepts that have driven his interest in researching the ecological role of top-level predators. Using the relationships between sea otters, kelp, and sea urchins as a touchstone, Estes retraces his investigations of numerous other species, ecosystems, and ecological processes in an attempt to discover why ecologists can learn so many details about the systems in which they work and yet understand so little about the broader processes that influence these systems. Part memoir, part natural history, and deeply inquisitive, Serendipity will entertain and inform readers as it raises thoughtful questions about our relationship with the natural world.



Serendipity

Serendipity Author James A. Estes
ISBN-10 9780520960633
Release 2016-05-17
Pages 256
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To newly minted biologist James Estes, the sea otters he was studying in the leafy kelp forests off the coast of Alaska appeared to have an unbalanced relationship with their greater environment. Gorging themselves on the sea urchins that grazed among the kelp, these small charismatic mammals seemed to give little back in return. But as Estes dug deeper, he unearthed a far more complex relationship between the otter and its underwater environment, discovering that otters play a critical role in driving positive ecosystem dynamics. While teasing out the connective threads, he began to question our assumptions about ecological relationships. These questions would ultimately inspire a lifelong quest to better understand the surprising complexity of our natural world and the unexpected ways we discover it. Serendipity tells the story of James Estes’s life as a naturalist and the concepts that have driven his interest in researching the ecological role of top-level predators. Using the relationships between sea otters, kelp, and sea urchins as a touchstone, Estes retraces his investigations of numerous other species, ecosystems, and ecological processes in an attempt to discover why ecologists can learn so many details about the systems in which they work and yet understand so little about the broader processes that influence these systems. Part memoir, part natural history, and deeply inquisitive, Serendipity will entertain and inform readers as it raises thoughtful questions about our relationship with the natural world.



Introduction to Population Ecology

Introduction to Population Ecology Author Larry L. Rockwood
ISBN-10 9781118947562
Release 2015-03-23
Pages 384
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Introduction to Population Ecology, 2nd Edition is a comprehensive textbook covering all aspects of population ecology. It uses a wide variety of field and laboratory examples, botanical to zoological, from the tropics to the tundra, to illustrate the fundamental laws of population ecology. Controversies in population ecology are brought fully up to date in this edition, with many brand new and revised examples and data. Each chapter provides an overview of how population theory has developed, followed by descriptions of laboratory and field studies that have been inspired by the theory. Topics explored include single-species population growth and self-limitation, life histories, metapopulations and a wide range of interspecific interactions including competition, mutualism, parasite-host, predator-prey and plant-herbivore. An additional final chapter, new for the second edition, considers multi-trophic and other complex interactions among species. Throughout the book, the mathematics involved is explained with a step-by-step approach, and graphs and other visual aids are used to present a clear illustration of how the models work. Such features make this an accessible introduction to population ecology; essential reading for undergraduate and graduate students taking courses in population ecology, applied ecology, conservation ecology, and conservation biology, including those with little mathematical experience.



Carnivores of Australia

Carnivores of Australia Author Alistair Glen
ISBN-10 9780643103177
Release 2014-11-05
Pages 448
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The Australian continent provides a unique perspective on the evolution and ecology of carnivorous animals. In earlier ages, Australia provided the arena for a spectacular radiation of marsupial and reptilian predators. The causes of their extinctions are still the subject of debate. Since European settlement, Australia has seen the extinction of one large marsupial predator (the thylacine), another (the Tasmanian devil) is in danger of imminent extinction, and still others have suffered dramatic declines. By contrast, two recently-introduced predators, the fox and cat, have been spectacularly successful, with devastating impacts on the Australian fauna. Carnivores of Australia: Past, Present and Future explores Australia's unique predator communities from pre-historic, historic and current perspectives. It covers mammalian, reptilian and avian carnivores, both native and introduced to Australia. It also examines the debate surrounding how best to manage predators to protect livestock and native biodiversity. Readers will benefit from the most up-to-date synthesis by leading researchers and managers in the field of carnivore biology. By emphasising Australian carnivores as exemplars of flesh-eaters in other parts of the world, this book will be an important reference for researchers, wildlife managers and students worldwide.



Big Wild and Connected

Big  Wild  and Connected Author John Davis
ISBN-10 9781610914413
Release 2013-06-17
Pages 100
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This E-ssential is a three-part series that covers John Davis's epic journey from Florida to Maine. In 2011, with support from the Wildlands Network, Davis traveled 7,600 miles in 10 months from Florida to Maine by foot, bicycle, skis, and canoe/kayak. His extensive travels were motivated by wanting to answer the question “Is it possible in the twenty-first century to identify and protect a continental-long wildlife corridor that could help to protect eastern nature into the future?” John paints a vivid picture of the physical challenges of the trek, such as climbing the highest point in South Carolina with a heavily loaded bike and trying to consume the 8,000 calories per day he needed to fuel himself for the journey. As readers adventure with Davis, they will also share his evolving understanding of what it would take to implement an Eastern Wildway. Eastern wildlife, both seen and unseen, from Florida panthers to North Carolina’s red wolves to the ghosts of cougars farther north, are the real focus of this adventure as John explores how such wildness can coexist with human development in the most populated regions of the United States. The science and conservation of large-scale connectivity are brought to life by his travels—offering unique insights into the challenges and opportunities for creating an Eastern Wildway. This is a must-read for enthusiasts of hiking narratives, as well as professionals and students interested in issues related to large-scale connectivity. Compelling photographs and other graphics complement John’s fascinating story.



The Serengeti Rules

The Serengeti Rules Author Sean B. Carroll
ISBN-10 9781400885541
Release 2017-03-07
Pages 288
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How does life work? How does nature produce the right numbers of zebras and lions on the African savanna, or fish in the ocean? How do our bodies produce the right numbers of cells in our organs and bloodstream? In The Serengeti Rules, award-winning biologist and author Sean Carroll tells the stories of the pioneering scientists who sought the answers to such simple yet profoundly important questions, and shows how their discoveries matter for our health and the health of the planet we depend upon. One of the most important revelations about the natural world is that everything is regulated—there are rules that regulate the amount of every molecule in our bodies and rules that govern the numbers of every animal and plant in the wild. And the most surprising revelation about the rules that regulate life at such different scales is that they are remarkably similar—there is a common underlying logic of life. Carroll recounts how our deep knowledge of the rules and logic of the human body has spurred the advent of revolutionary life-saving medicines, and makes the compelling case that it is now time to use the Serengeti Rules to heal our ailing planet. A bold and inspiring synthesis by one of our most accomplished biologists and gifted storytellers, The Serengeti Rules is the first book to illuminate how life works at vastly different scales. Read it and you will never look at the world the same way again.



The Next Species

The Next Species Author Michael Tennesen
ISBN-10 9781451677539
Release 2015-03-17
Pages 336
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“Simultaneously sobering and exhilarating, Michael Tennesen’s wide-ranging survey of disasters highlights both life’s fragility and its metamorphosing persistence” (Booklist) and describes what life on earth could look like after the next mass extinction. A growing number of scientists agree we are headed toward a mass extinction, perhaps in as little as 300 years. Already there have been five mass extinctions in the last 600 million years, including the Cretaceous Extinction, during which an asteroid knocked out the dinosaurs. Though these events were initially destructive, they were also prime movers of evolutionary change in nature. And we can see some of the warning signs of another extinction event coming, as our oceans lose both fish and oxygen, and our lands lose both predators and prey. In The Next Species, Michael Tennesen questions what life might be like after it happens. In thoughtful, provocative ways, Tennesen discusses the future of nature and whether humans will make it through the bottleneck of extinction. Could life suddenly get very big as it did before the arrival of humans? Could the conquest of Mars lead to another form of human? Could we upload our minds into a computer and live in a virtual reality? How would we recognize the next humans? Are they with us now? Tennesen delves into the history of the planet and travels to rainforests, canyons, craters, and caves all over the world to explore the potential winners and losers of the next era of evolution. His predictions, based on reports and interviews with top scientists, have vital implications for life on earth today. The Next Species is “an engrossing history of life, the dismal changes wrought by man, and a forecast of life after the sixth mass extinction” (Kirkus Reviews).



Adaptive Food Webs

Adaptive Food Webs Author John C. Moore
ISBN-10 9781316877258
Release 2017-11-30
Pages
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Presenting new approaches to studying food webs, this book uses practical management and policy examples to demonstrate the theory behind ecosystem management decisions and the broader issue of sustainability. All the information that readers need to use food web analyses as a tool for understanding and quantifying transition processes is provided. Advancing the idea of food webs as complex adaptive systems, readers are challenged to rethink how changes in environmental conditions affect these systems. Beginning with the current state of thinking about community organisation, complexity and stability, the book moves on to focus on the traits of organisms, the adaptive nature of communities and their impacts on ecosystem function. The final section of the book addresses the applications to management and sustainability. By helping to understand the complexities of multispecies networks, this book provides insights into the evolution of organisms and the fate of ecosystems in a changing world.



On the Zoological Geography of the Malay Archipelago

On the Zoological Geography of the Malay Archipelago Author Alfred Russel Wallace
ISBN-10 9781473362574
Release 2016-05-25
Pages 28
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This early work by Alfred Russel Wallace was originally published in 1859 and we are now republishing it with a brand new introductory biography. 'On the Zoological Geography of the Malay Archipelago' is an article detailing Wallace's observations during his travels in Asia. Alfred Russel Wallace was born on 8th January 1823 in the village of Llanbadoc, in Monmouthshire, Wales. Wallace was inspired by the travelling naturalists of the day and decided to begin his exploration career collecting specimens in the Amazon rainforest. He explored the Rio Negra for four years, making notes on the peoples and languages he encountered as well as the geography, flora, and fauna. While travelling, Wallace refined his thoughts about evolution and in 1858 he outlined his theory of natural selection in an article he sent to Charles Darwin. Wallace made a huge contribution to the natural sciences and he will continue to be remembered as one of the key figures in the development of evolutionary theory.



Requiem for Nature

Requiem for Nature Author John Terborgh
ISBN-10 9781597268820
Release 2004-07-09
Pages 256
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For ecologist John Terborgh, Manu National Park in the rainforest of Peru is a second home; he has spent half of each of the past twenty-five years there conducting research. Like all parks, Manu is assumed to provide inviolate protection to nature. Yet even there, in one of the most remote corners of the planet, Terborgh has been witness to the relentless onslaught of civilization.Seeing the steady destruction of irreplaceable habitat has been a startling and disturbing experience for Terborgh, one that has raised urgent questions: Is enough being done to protect nature? Are current conservation efforts succeeding? What could be done differently? What should be done differently? In Requiem for Nature, he offers brutally honest answers to those difficult questions, and appraises the prospects for the future of tropical conservation. His book is a clarion call for anyone who cares about the quality of the natural world we will leave our children.Terborgh examines current conservation strategies and considers the shortcomings of parks and protected areas both from ecological and institutional perspectives. He explains how seemingly pristine environments can gradually degrade, and describes the difficult social context –a debilitating combination of poverty, corruption, abuses of power, political instability, and a frenzied scramble for quick riches –in which tropical conservation must take place. He considers the significant challenges facing existing parks and examines problems inherent in alternative approaches, such as ecotourism, the exploitation of nontimber forest products, "sustainable use," and "sustainable development."Throughout, Terborgh argues that the greatest challenges of conservation are not scientific, but are social, economic, and political, and that success will require simultaneous progress on all fronts. He makes a compelling case that nature can be saved, but only if good science and strong institutions can be thoughtfully combined.



Antarctic Ecosystems

Antarctic Ecosystems Author R. Bargagli
ISBN-10 9783540264651
Release 2006-01-20
Pages 398
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This volume provides an overview of climate change data, its effects on the structure and functioning of Antarctic ecosystems, and the occurrence and cycling of persistent contaminants. It discusses the role of Antarctic research for the protection of the global environment. The book also examines possible future scenarios of climate change and the role of Antarctic organisms in the early detection of environmental perturbations.



How Species Interact

How Species Interact Author Roger Arditi
ISBN-10 9780199913831
Release 2012-05-11
Pages 170
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This book argues that the "null model" for describing consumer-resource interactions in ecology must be changed. Evidence is drawn from experiments, from observations and from mathematical models.



Resolving Ecosystem Complexity MPB 47

Resolving Ecosystem Complexity  MPB 47 Author Oswald J. Schmitz
ISBN-10 1400834171
Release 2010-07-01
Pages 192
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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.



Applying Graph Theory in Ecological Research

Applying Graph Theory in Ecological Research Author Mark R.T. Dale
ISBN-10 9781107089310
Release 2017-10-31
Pages 372
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This book clearly describes the many applications of graph theory to ecological questions, providing instruction and encouragement to researchers.