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Books > Earth & environment > The environment > Applied ecology > Biodiversity
Conservation genetics focuses on understanding the role and
requirement of genetic variation for population persistence.
However, considerable debate now surrounds the role of genetic
factors (as opposed to non-genetic factors such as habitat
destruction etc.) in population extinction, and a comprehensive
synthesis is now timely. Can extinction be explained by habitat
destruction alone or is lack of genetic variation a part of the
explanation? The book thoroughly reviews the arguments for a role
of genetics in the present biodiversity crisis. It describes the
methods used to study genetic variation in endangered species and
examines the influence of genetic variation in the extinction of
species.
We don't know what we've got until it's gone... This brief, lucid book by the Director of Science at Royal Botanical Gardens takes you on an unforgettable tour of the natural world, showing how biodiversity - the rich variety of life in the world and in our own backyards - provides both the source and the salvation of our existence. Combining inspiration stories and the latest scientific research, Alex Antonelli reveals the wonders of biodiversity at a genetic, species and ecosystem level - what it is, how it works, and why it's the most important tool in our battle against climate change. A deeper understanding of biodiversity has never been more important, as the slow violence of habitat loss has put the fate of almost one-fifth of all species on Earth at risk of extinction in the coming decades. These building blocks of life form a network that underpins almost every aspect of our lives, providing invaluable sources of food, medicine, fibre, clothing, building material and more. With simplicity and clarity, The Hidden Universe shows you not only what's at stake, but what can be done (and is already being done) to protect and restore biodiversity around the world. It marks the arrival of a bold new voice in popular science.
Understanding the mechanisms driving biological diversity remains a central problem in ecology and evolutionary biology. Traditional explanations assume that differences in selection pressures lead to different adaptations in geographically separated locations. This book takes a different approach and explores adaptive diversification--diversification rooted in ecological interactions and frequency-dependent selection. In any ecosystem, birth and death rates of individuals are affected by interactions with other individuals. What is an advantageous phenotype therefore depends on the phenotype of other individuals, and it may often be best to be ecologically different from the majority phenotype. Such rare-type advantage is a hallmark of frequency-dependent selection and opens the scope for processes of diversification that require ecological contact rather than geographical isolation. Michael Doebeli investigates adaptive diversification using the mathematical framework of adaptive dynamics. Evolutionary branching is a paradigmatic feature of adaptive dynamics that serves as a basic metaphor for adaptive diversification, and Doebeli explores the scope of evolutionary branching in many different ecological scenarios, including models of coevolution, cooperation, and cultural evolution. He also uses alternative modeling approaches. Stochastic, individual-based models are particularly useful for studying adaptive speciation in sexual populations, and partial differential equation models confirm the pervasiveness of adaptive diversification. Showing that frequency-dependent interactions are an important driver of biological diversity, "Adaptive Diversification" provides a comprehensive theoretical treatment of adaptive diversification.
In the last decade biodiversity loss and persistent poverty in developing countries have been recognised as major international problems that require urgent attention. However, the nature and scale of the links between these two problems, and between efforts to address them, has been the subject of much heated debate. Understanding the different elements of this debate is critical if we are to move towards constructive solutions. This Reader provides a guide to, and commentary on, the different strands of the current conservation-poverty debate through a selection of key readings from both the conservation and development literature including policy documents, journal articles and reports. The breadth of material will help readers, including both students and professionals, to locate current debates within their wider contexts. Among the areas of debate covered are: ' The lack of attention to biodiversity concerns in international development policy ' The social implications of protectionist conservation policy ' The roles and responsibilities of conservation NGOs towards local communities ' The links between climate change, biodiversity and poverty reduction, and in particular the implication of discussions around reduced emissions from deforestation (REDD) as a climate change mitigation strategy.
Habitat management is commonly used to maintain and enhance the
biological interest of many areas of semi-natural habitat where
natural processes no longer create suitable conditions for desired
species. Habitat restoration and creation is increasingly being
used to increase the extent of ecologically important habitats in
order to mitigate the impacts of human development. The
modification of past management techniques and the introduction of
new ones can provide additional benefits.
Published in three other languages and growing, "Managing Biodiversity in Agricultural Ecosystems" takes a look at how farmers manage, maintain, and benefit from biodiversity in agricultural production systems. The volume includes the most recent research and developments in the maintenance of local diversity at the genetic, species, and ecosystem levels. Chapters cover the assessment and farmer management practices for crop, livestock, aquatic, and associated diversity (such as pollinators and soil microorganisms) in agricultural ecosystems; examine the potential role of diversity in minimizing pest and disease pressures; and present studies that exemplify the potential nutritional, ecosystem service, and financial values of this diversity under changing economic and environmental conditions. The volume contains perspectives that combine the thinking of social and biological scientists. Inappropriate or excessive use of inputs can cause damage to biodiversity within agricultural ecosystems and compromise future productivity. This book features numerous case studies that show how farmers have used alternative approaches to manage biodiversity to enhance the stability, resilience, and productivity of their farms, pointing the way toward improved biodiversity on a global scale. As custodians of the world's agricultural biodiversity, farmers are fully invested in ways to create, sustain, and assist in the evolution and adaptation of a variety of plant and animal species. Thus this text is mandatory reading for conservationists, environmentalists, botanists, zoologists, geneticists, and anyone interested in the health of our ecosystem.
During the Neogene - covering the last 23 Million years - the evolution of the environmental setting in Africa was subject to considerable changes. Natural shifts, slow and rapid, evidenced by modifications in palaeogeography, geodynamics, climate, and vegetation have caused repeated and strong changes of ecosystems in the lower latitudes. Using a variety of proxy data - researched and applied by many authors from numerous disciplines - an attempt is made to reconstruct African landscapes over space and time. Besides such spatio-temporal oscillations in recently humid, semi-humid, and dry areas of Africa, this volume of Palaeoecology of Africa (PoA) focuses on long term interrelationships between ecosystem dynamics and climate change, not ignoring the ever growing and ongoing influence of humans on natural ecosystems since the Quaternary. Regionally, this volume lays a strong focus on Nigeria (Niger Delta). Facing the omnipresent challenges of Global Change, an increasing number of African scientists is involved in palaeoenvironmental and palaeoclimatic research, both theoretical and applied. PoA systematically supports established as well as junior African scientists in the field of sustainable cooperation and academic capacity building. This book will be of interest to all concerned with or interested in up-to-date research on Neogene to Quaternary low latitudes ecosystem changes and their respective interpretation in the framework of natural climate and vegetation change evidenced by a variety of methods that allow to read and learn from the past by following the motto, "The geologic foretime as the key to the present, and possibly to the future." Palynologists, Geologists, Geographers, Archaeologists, and Geomorphologists will find this edition equally useful for their work.
'Jake Fiennes is changing the face of farming in Britain... a revolutionising force' Isabella Tree Our relationship with our land is broken: we must heal it. Jake Fiennes is on a mission to change the face of the English countryside. As Conservation Manager at Holkham in Norfolk, one of the country's largest historic country estates, his radical habitat restoration and agricultural work has nurtured its species and risen its crop yields - bringing back wetlands, hedgerows, birds and butterflies over 25,000 acres of land. But this isn't rewilding - there is no 'wild' in Britain anymore. Mass farming, crop science and industrial chemicals have destroyed the majority of our natural landscape and wildlife over the last century. Land Healer is the story of Fiennes's ambition to bring back our flora and fauna - by reclaiming our traditions and trialling new experiments which could restore our symbiosis with our land, and save our shared future. Following the farming year and the natural cycle of the seasons, Land Healer chronicles a life of conservation lived at the edges, and is a manifesto for rethinking our relationship with the natural world before it's too late.
This important new book addresses key topics in contemporary conservation biology. Written by an internationally renowned team of authors, "Key Topics in Conservation Biology" explores cutting-edge issues in modern biodiversity conservation, including controversial subjects such as rarity and prioritization, conflict between people and wildlife, the human aspect of conservation, the relevance of animal welfare, and the role of nongovernment organizations. Key Topics also tackles the management of wildlife diseases, and examines the impact of bushmeat extraction and the role of hunting in the conservationist's toolbox. Other essays explore basic tools of conservation biology, such as computer modeling, conservation genetics, metapopulation processes, and the ingenious use of hi-tech equipment. Each topic is explored by three top international experts, assembled to bring their cross-cutting knowledge to a penetrating synthesis of the issues from both theoretical and practical perspectives. The interdisciplinary nature of biodiversity conservation is reflected throughout the book. Each essay examines the fundamental principles of the topic, the methodologies involved and, crucially, the human dimension. In this way, "Key Topics in Conservation Biology" embraces the issues from cutting-edge ecological science to policy, environmental economics, governance, ethics, and the practical issues of implementation. "Key Topics in Conservation Biology" will be a valuable resource in universities and colleges, government departments, and conservation agencies. It is aimed particularly at senior undergraduate and graduate students in conservation biology and wildlife management, and those taking Masters degrees in any field relevant to conservation. Conservation practitioners, policy-makers, and the wider general public eager to understand more about important environmental issues will also find this book invaluable.
Biosphere reserves serve in some ways as "living laboratories" for testing and demonstrating integrated management of land, water and biodiversity. With this publication the national MAB-committee of Germany gives a detailed presentation and description of the Biosphere Reserves of Germany.
Biodiversity conservation and sustainable use of natural resources has remained one of the key challenges for development agencies and concerned stakeholders for decades together. The huge threat of climate change has only added to this complexity. In this context, the present book Biodiversity, Community, and Climate Change is designed to help in guiding the various principles of biodiversity conservation, effects of climate change and role of communities at various levels and landscapes. A total of 19 chapters are covered in this book and they encompass a wide range of topics including tools of biodiversity assessment ranging from conventional ecological and social survey methods to the use of latest technology such as Geographical Information System (GIS) and remote sensing. It includes: a description of biodiversity conservation with focus on the status of biodiversity from lower to higher flora and fauna; an assessment of evaluation of impacts of allelopathic compounds on growth of native plant species; significant emphasis on the usefulness of geospatial techniques for monitoring urban ecosystem and biodiversity; specific focus on community, livelihood, and management of biodiversity; and an analysis of participatory conservation and forest management case studies to further strengthen conservation approaches. It focuses on the vital importance of community forestry, agriculture sector and biodiversity conservation in addressing the threats of climate change.
Since the release of the documentary Blackfish in 2013, millions around the world have focused on the plight of the orca, the most profitable and controversial display animal in history. Yet, until now, no historical account has explained how we came to care about killer whales in the first place. Drawing on interviews, official records, private archives, and his own family history, Jason M. Colby tells the exhilarating and often heartbreaking story of how people came to love the ocean's greatest predator. Historically reviled as dangerous pests, killer whales were dying by the hundreds, even thousands, by the 1950s-the victims of whalers, fishermen, and even the US military. In the Pacific Northwest, fishermen shot them, scientists harpooned them, and the Canadian government mounted a machine gun to eliminate them. But that all changed in 1965, when Seattle entrepreneur Ted Griffin became the first person to swim and perform with a captive killer whale. The show proved wildly popular, and he began capturing and selling others, including Sea World's first Shamu. Over the following decade, live display transformed views of Orcinus orca. The public embraced killer whales as charismatic and friendly, while scientists enjoyed their first access to live orcas. In the Pacific Northwest, these captive encounters reshaped regional values and helped drive environmental activism, including Greenpeace's anti-whaling campaigns. Yet even as Northwesterners taught the world to love whales, they came to oppose their captivity and to fight for the freedom of a marine predator that had become a regional icon. This is the definitive history of how the feared and despised "killer" became the beloved "orca"-and what that has meant for our relationship with the ocean and its creatures.
Martin A. Hajer's original study examines the nature of contemporary environmental politics, analysing the emergence and sustenance of institutional perceptions of environmental problems.
Although of high abundance, diversity and ecological importance, meiofauna is little covered by relevant scientific media. How can this negligence be overcome? The present treatise highlights promising meiofauna research fields, selected both from basic and applied science, as well as new methods that could strengthen the potential of meiobenthology. Selected recent meiofauna studies, often supported by rapidly advancing gene-based methods, underline the relevance and potential of meiobenthology revealing characteristics and harassments of ecosystems, not the least in extreme habitats. Also in the more classical domains such as taxonomy and phylogeny, progress in meiobenthos research defines a new and deeper scientific understanding.
Swathes of the human world are covered in ornamental grass lawns; they are the single most commonly encountered horticultural feature on the planet. Unfortunately, they are now often viewed as resource-draining green deserts due to the lack of plant and animal diversity, the need for frequent mowing and watering, and addition of lawn greening products to keep them looking at their best. It is a venerable horticultural feature that is essentially frozen in time, and with few alternatives to whet the appetite, the lawn has languished in its current grass-only format for decades. Until now. Tapestry lawns are a new, practically researched and timely development of the ornamental lawn format that integrates both horticultural practice and ecological science and re-determines the potential of a lawn. Mown barely a handful of times a year and with no need for fertilisers or scarifying, tapestry lawns are substantially richer in their diversity of plant and animal life compared to traditional grass-only lawns and see the return of flowers and colour to a format from which they are usually purposefully excluded. Tapestry Lawns: Freed from Grass and Full of Flowers traces the changes in the lawn format from its origins to the modern day and offers information on how and why the tapestry lawn construct is now achievable. It provides guidance on how to create and maintain a tapestry lawn of your own and champions the potential benefits for wildlife that can follow. Features Accessible and informative to all types of readers from academic to amateur Includes a refined and tested set of useful tapestry lawn plants Contains step-by-step instructions for creation and management methods of grass-free lawns Illustrated in full colour If you have ever thought about mowing your lawn much less, making it much more colourful and wildlife friendly, then this book will inform and guide you to create a perfect, grass-free lawn.
From famed zoologist Anthony Sinclair, an account of his decades-long quest to understand one of Earth's most spectacular ecosystems With its rich biodiversity, astounding wildlife, and breathtaking animal migrations, Serengeti is like no other ecosystem on the planet. A Place like No Other is Anthony Sinclair's firsthand account of how he and other scientists discovered the biological principles that regulate life in Serengeti and how they rule all of the natural world. When Sinclair first began studying this spectacular ecosystem in 1965, a host of questions confronted him. What environmental features make its annual migration possible? What determines the size of animal populations and the stunning diversity of species? What factors enable Serengeti to endure over time? In the five decades that followed, Sinclair and others sought answers. What they learned is that seven principles of regulation govern all natural processes in the Serengeti ecosystem. Sinclair shows how these principles can help us to understand and overcome the challenges facing Serengeti today, and how they can be used to repair damaged habitats throughout the world. Blending vivid storytelling with invaluable scientific insights from Sinclair's pioneering fieldwork in Africa, A Place like No Other reveals how Serengeti holds timely lessons for the restoration and conservation of our vital ecosystems.
The field of biocultural diversity is emerging as a dynamic, integrative approach to understanding the links between nature and culture and the interrelationships between humans and the environment at scales from the global to the local. Its multifaceted contributions have ranged from theoretical elaborations, to mappings of the overlapping distributions of biological and cultural diversity, to the development of indicators as tools to measure, assess, and monitor the state and trends of biocultural diversity, to on-the-ground implementation in field projects. This book is a unique compendium and analysis of projects from all around the world that take an integrated biocultural approach to sustaining cultures and biodiversity. The 45 projects reviewed exemplify a new focus in conservation: this is based on the emerging realization that protecting and restoring biodiversity and maintaining and revitalizing cultural diversity and cultural vitality are intimately, indeed inextricably, interrelated. Published with Terralingua and IUCN
Written primarily for 16-19 year old students, this primer introduces the key features of the marine environment and explores definitions of marine biodiversity at different levels of biological organization: genetic, species, ecosystem, and functional. It also discusses how changes in ocean features due to human activities are having a negative impact on marine biological diversity. The primer aims to extend students' knowledge and inspire them to take their school-level learning further. It explores topics that are familiar from the curriculum and also introduces new ideas, giving students a first taste of the study of biology beyond school-level and demonstrating how concepts frequently encountered at school are relevant to and applied in current research. This is an ideal text to support students who are considering making the transition from studying biology at school to university. Digital formats and resources The book is available for students and institutions to purchase in a variety of formats, and is supported by online resources: - The e-book offers a mobile experience and convenient access along with functionality tools, navigation features, and links that offer extra learning support: www.oxfordtextbooks.co.uk/ebooks - Online resources include multiple choice questions for students to check their understanding, and, for registered adopters, figures and tables from the book
The Atlas of Seeds and Fruits of Central and East-European Flora presents nearly 4,800 seed illustrations, supplemented with detailed seed descriptions, brief plant descriptions, and information on the locality and the native source of plants. The Carpathian flora covered here occurs not only in the Carpathian Mountains, but also in large lowlands extending towards the south, north and east and involves introduced and invading flora of more than 7,500 species. This publication is unique on two counts. Its scope extends to an unprecedented number of different plant seeds from a wide-ranging region. Moreover, it presents descriptions in unusual detail.
Protected areas spearhead our response to the rapidly accelerating biodiversity crisis. However, while the number of protected areas has been growing rapidly over the past 20 years, the extent to which the world s protected areas are effectively conserving species, ecosystems, and ecosystem services is poorly understood. * Highlights new techniques for better management and monitoring of protected areas * Sets guidelines for the decision making processes involved in setting up and maintaining protected areas * Fully international in scope and covering all ecosystems and biomes
Home Gardens for Improved Food Security and Livelihoods demonstrates how home gardens hold particular significance for resource-poor and marginalized communities in developing countries, and how they offer a versatile strategy toward building local and more resilient food systems. With food and nutritional security being a major global challenge, there is an urgent need to find innovative ways to increase food production and diversify food sources while increasing income-generating opportunities for communities faced with hunger and poverty. This book shows that when implemented properly, home gardens can become just such an innovative solution, as well as an integral part of sustainable food security programs. It provides a conceptual overview of social, economic, environmental and nutritional issues related to home gardening in diverse contexts, including gender issues and biodiversity conservation, and presents case studies from Africa, Asia and Latin America highlighting home gardening experiences and initiatives. The volume concludes with a synthesis of key lessons learned and ways forward for further enhancing home gardens for sustainable food security and development. This book will be a useful read for students and scholars working on local food systems, food security, sustainable development and more broadly development strategy.
North east India is a global biodiversity hotspot but a quite understudied area. Forest loss has always been problematic in the area. Using Landsat satellite data from three periods (70s, 80s/90s and 2010s), forest loss is assessed in sample protected areas and other sites in the study area, processing is undertaken using image processing and standard GIS tools. The landscape metrics of selected sites are assessed using the widely used program FRAGSTATS. Drivers of forest loss are central in the discussion of the study.
Ecosystems today are dynamic and complex, leaving conservationists faced with the paradox of conserving moving targets. New approaches to conservation are now required that aim to conserve ecological function and process, rather than attempt to protect static snapshots of biodiversity. To do this effectively, long-term information on ecosystem variability and resilience is needed. While there is a wealth of such information in palaeoecology, archaeology, and historical ecology, it remains an underused resource by conservation ecologists. In bringing together the disciplines of neo- and palaeoecology and integrating them with conservation biology, this novel text illustrates how an understanding of long-term change in ecosystems can in turn inform and influence their conservation and management in the Anthropocene. By looking at the history of traditional management, climate change, disturbance, and land-use, the book describes how a long-term perspective on landscape change can inform current and pressing conservation questions such as whether elephants should be culled, how best to manage fire, and whether ecosystems can or should be "re-wilded" Biodiversity Conservation and Environmental Change is suitable for senior undergraduate and post-graduate students in conservation ecology, palaeoecology, biodiversity conservation, landscape ecology, environmental change and natural resource management. It will also be of relevance and use to a global market of conservation practitioners, researchers, educators and policy-makers.
This book explores the epistemological and ethical issues at the foundations of environmental philosophy, emphasising the conservation of biodiversity. Sahota Sarkar criticises attempts to attribute intrinsic value to nature and defends an anthropocentric position on biodiversity conservation based on an untraditional concept of transformative value. Unlike other studies in the field of environmental philosophy, this book is as much concerned with epistemological issues as with environmental ethics. It covers a broad range of topics, including problems of explanation and prediction in traditional ecology and how individual-based models and Geographic Information Systems (GIS) technology is transforming ecology. Introducing a brief history of conservation biology, Sarkar analyses the consensus framework for conservation planning through adaptive management. He concludes with a discussion of directions for theoretical research in conservation biology and environmental philosophy. |
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