The role of non-native species in their new environments is one of the central issues in conservation biology and ecology today. This book presents a comprehensive evolutionary exploration of the complex and dynamic interactions between introduced species and native ones, and shows that non-native species can bring useful and important contributions to novel ecosystems. Based on a wide variety of examples and case studies, a strong case is made for a more positive and objective approach to non-native species and a greater appreciation of the valuable ecosystem services they provide.

This book examines the reintroduction and recovery of the wolf in the Northern Rocky Mountains. The wolf was driven to brink of extinction through conscious government policy. The Endangered Species Act of 1973 provided the means for wolf's return, which began in the Carter administration and continues in the Obama administration. The battle over the wolf is part of a larger struggle over the management of public lands, generating public law litigation. Interest groups brought suit in federal courts, challenging the Department of Interior's implementation of policy. The federal courts were required to interpret the statutory mandates and review Interior's decisions to insure statutory compliance. The analysis of this public law litigation demonstrates that the federal courts correctly interpreted the statutory mandates and properly supported and checked Interior's decisions. This book focuses on the controversial role of the courts in the resolution of public policy conflicts. Judicial skeptics argue that the courts should not get involved in complex public policy disputes as Judges lack the expertise and information to make informed decisions. Judicial proponents, by contrast, argue that judicial involvement is necessary so Federal courts can oversee federal agencies, which are under conflicting pressure from interest groups, the President, Congress, and their own internal dynamics. This book supports the conclusions of judicial proponents and points out that the federal courts have been instrumental in the return and recovery of the wolf to the Northern Rocky Mountains.

Mutualisms, interactions between two species that benefit both of them, have long captured the public imagination. Their influence transcends levels of biological organization from cells to populations, communities, and ecosystems. Mutualistic symbioses were crucial to the origin of eukaryotic cells, and perhaps to the invasion of land. Mutualisms occur in every terrestrial and aquatic habitat; indeed, ecologists now believe that almost every species on Earth is involved directly or indirectly in one or more of these interactions. Mutualisms are essential to the reproduction and survival of virtually all organisms, as well as to nutrient cycles in ecosystems. Furthermore, the key ecosystem services that mutualists provide mean that they are increasingly being considered as conservation priorities, ironically at the same time as the acute risks to their ecological and evolutionary persistence are increasingly being identified. This volume, the first general work on mutualism to appear in almost thirty years, provides a detailed and conceptually-oriented overview of the subject. Focusing on a range of ecological and evolutionary aspects over different scales (from individual to ecosystem), the chapters in this book provide expert coverage of our current understanding of mutualism whilst highlighting the most important questions that remain to be answered. In bringing together a diverse team of expert contributors, this novel text captures the excitement of a dynamic field that will help to define its future research agenda.

Everyone is familiar with the dodo and the wooly mammoth, but how many people have heard of the scimitar cat and the Falkland Island fox? "Extinct Animals" portrays over 60 remarkable animals that have been lost forever during the relatively recent geological past. Each entry provides a concise discussion of the history of the animal--how and where it lived, and how it became extinct--as well as the scientific discovery and analysis of the creature. In addition, this work examines what led to extinction--from the role of cyclical swings in the Earth's climate to the spread of humans and their activities. Many scientists believe that we are in the middle of a mass extinction right now, caused by the human undermining of the earth's complex systems that support life. Understanding what caused the extinction of animals in the past may help us understand and prevent the extinction of species in the future.

"Extinct Animals" examines the biology and history of some of the most interesting creatures that have ever lived, including: The American Terror Bird, which probably became extinct over 1 million years ago, who were massive predators, some of which were almost 10 feet tall; the Rocky Mountain Locust, last seen in 1902, formed the most immense animal aggregations ever known, with swarms estimated to include over 10 trillion insects; the Giant Ground Sloth, which was as large as an elephant; and the Neandertals, the first Europeans, which co-existed with prehistoric Homo sapiens. "Extinct Animals" includes illustrations--many created for the work--that help the reader visualize the extinct creature, and each entry concludes with a list of resources for those who wish to do further research.

Biology and Physiology of Freshwater Neotropical Fish is the all-inclusive guide to fish species prevalent in the neotropical realm. It provides the most updated systematics, classification, anatomical, behavioral, genetic, and functioning systems information on freshwater neotropical fish species. This book begins by analyzing the differences in phylogeny, anatomy, and behaviour of neotropical fish. Systems such as cardiovascular, respiratory, renal, digestive, reproductive, muscular, and endocrine are described in detail. This book also looks at the effects of stress on fish immune systems, and how color and pigmentation play into physiology and species differentiation. Biology and Physiology of Freshwater Neotropical Fish is a must-have for fish biologists and zoologists. Students in zoology, ichthyology, and fish farming will also find this book useful for its coverage of some of the world's rarest and least-known fish species.

European Whales, Dolphins, and Porpoises: Marine Mammal Conservation in Practice presents an intimate view of the workings of international conservation agreements to protect marine mammals, detailing achievements over the last 25 years, identifying weaknesses and making recommendations that governments, scientists, marine stakeholders and the public can take to improve conservation efforts. The book is written by an experienced marine mammal scientist and award-winning conservationist, providing a unique synthesis on their status, distribution and ecology. In addition, it presents information on various conservation threats, including fisheries by catch, contaminants, noise disturbance, plastic ingestion and climate change. This comprehensive resource will appeal to marine mammal conservationists and researchers, as well as environmental and wildlife practitioners at all levels.

Felines of the World: Discoveries in Taxonomic Classification and History provides the most recent taxonomic, paleontological, phylogenetic and DNA advances of wild felid and domestic cat species following guidelines dictated by the IUCN SSC Cat Specialist Group. It highlights the importance of felines and their role as predators in maintaining the ecological biome balance in which they have evolved. The book delves into the anatomical, evolutionary and zoogeographic features of fossil and current felid species. Each species is described in detail, detailing its classification, habitat and biological habits. This book also presents the most updated threat and conservation status of each species. This book is an ideal resource for zoologists and paleontologists, primarily those interested in the evolution and features of extinct and extant felines.

Biodiversity of Pantepui: The Pristine "Lost World" of the Neotropical Guiana Highlands provides the most updated and comprehensive knowledge on the biota, origin, and evolution of the Pantepui biogeographical province. It synthesizes historical information and recent discoveries, covering the main biogeographic patterns, evolutionary trends, and conservational efforts. Written by international experts on the biodiversity of this pristine land, this book explores what makes Pantepui a unique natural laboratory to study the origin and evolution of Neotropical biodiversity under the influence of only natural drivers. It discusses the organisms living in Pentepui, including algae, plants, several groups of invertebrates, birds, amphibians, reptiles, and mammals. The latter portion of the book delves into the effects of human activity and global warming on Pantepui, and current conservational efforts to combat these threats. Biodiversity of Pantepui is an important resource for researchers in ecology, biogeography, evolution, and conservation, who want to understand the biodiversity and natural history of this region, and how to help conserve and protect the Guiana Highlands from environmental and human damages.

Butterflies and moths hold an enduring fascination for their unusual life cycle, as they change from one creature into another. Butterflies is an outstanding collection of photographs showcasing nature’s most beautiful and often elusive butterflies and moths – members of the Lepidoptera order – in the variety of their natural habitats. With 17,500 species of butterfly and 160,000 species of moth in the world today, they can be found on every continent apart from Antarctica, and in every nation. Arranged in chapters covering some of the most beautiful and interesting types of butterfly and moth, their habitats, their transition from egg to caterpillar and from chrysalid to adult, as well as their behaviour, the book reveals little-known facts about their life cycle, anatomy, self-defence mechanisms, feeding and migration. For example, did you know that while caterpillars chew their solid food, adult butterflies can only consume liquid, and some moths do not even have mouths? Or that many species can taste with their feet? With full captions explaining how the species breeds, feeds, and changes from caterpillar to the animal kingdom’s most stunning member, Butterflies is a brilliant examination in more than 200 outstanding colour photographs of these fascinating insects.

An exhilarating journey to some of the world's most stunning locales, led by one of conservation's key scientists. In 1972, Eric Dinerstein was in film school at Northwestern University, with few thoughts of nature, let alone tiger-filled jungles at the base of the Himalayas or the antelope-studded Serengeti plain. Yet thanks to some inspiring teachers and the squawk of a little green heron that awakened him to nature's fundamental wonders, Dinerstein would ultimately become a leading conservation biologist, traveling to these and other remote corners of the world to protect creatures ranging from the striking snow leopard to the homely wrinkle-faced bat. "Tigerland and Other Unintended Destinations" takes readers on Dinerstein's unlikely journey to conservation's frontiers, from early research in Nepal to recent expeditions as head of Conservation Science at the World Wildlife Fund. Along the way, each locale is brought to life by the author's vivid descriptions, amusing stories, and poetic voice. We are there as the author renews his resolve after being swept downstream on an elephant's back, tracks snow leopards in the mountains of Kashmir with a remarkable housewife turned zoologist, and finds unexpected grit in a Manhattanite donor he guides into the wildest reaches of the Orinoco River. At every turn, we meet professed and unprofessed ecologists who share Dinerstein's mission, a cast of free-spirited characters uncommonly committed to - and remarkably successful at - preserving slices of the world's natural heritage. A simple sense of responsibility, one feels, shines through all of Dinerstein's experiences: not just to marvel at what we see, but to join in efforts to sustain the planet's exquisite design. Tigerland's message is clear: individuals make all the difference; if we combine science, advocacy, and passion, ambitious visions for conservation can become reality - even against overwhelming odds.

Over the last decade, the field of plant ecology has significantly developed and expanded, especially in research concerning the herb layer and ground vegetation of forests. This revised second edition of The Herbaceous Layer in Forests of Eastern North America accounts for that growth, presenting research that approaches the ecology of the herb layer of forests from a variety of disciplines and perspectives. The book synthesizes the research of top ecologists and biologists on herbaceous layer structure, composition, and dynamics of a variety of forest ecosystem types in eastern North America. The 2003 first edition of The Herbaceous Layer in Forests of Eastern North America was praised for containing the most extensive listing of herb-layer literature in existence. This second edition brings this material up to date, revised to include current research and data. The book incorporates quantitative data to support analyses that was previously unavailable during the publication of the first edition. Also featured are six entirely new chapters, focused on the response of the herbaceous layer to a wide variety of natural and anthropogenic disturbances. Building on the over 1,200 references and sources of the first edition, the second edition of The Herbaceous Layer in Forests of Eastern North America is an invaluable resource for plant ecologists, forest ecologists, and conservationists.

This book uses primary documents as a lens through which to examine historical and present-day efforts to protect endangered species in the United States and around the world. In this thought-provoking work, author Edward P. Weber examines the values, policies, challenges, and approaches to endangered species conservation over the past 200 years. Using primary source documents and in-depth analysis of the issues, the reference tracks the evolution of species protection and conservation in the United States, and offers a brief look at global programs in the United States and other parts of the world. The book surveys how different countries are faring in protecting their plant and animal life, and considers which guidelines and programs hold the most promise for success in the future. Chapters compare and contrast past and present attitudes regarding endangered species and extinction and identify the influence of major organizations and individuals central to the debate over endangered species. Judiciously selected primary documents also explore the impact of species endangerment and loss on natural ecosystems—and ultimately, on humankind itself.

Global change threatens ecosystems worldwide, and tropical systems with their high diversity and rapid development are of special concern. We can mitigate the impacts of change if we understand how tropical ecosystems respond to disturbance. For tropical forests and streams in Puerto Rico this book describes the impacts of, and recovery from, hurricanes, landslides, floods, droughts, and human disturbances in the Luquillo Mountains of Puerto Rico. These ecosystems recover quickly after natural disturbances, having been shaped over thousands of years by such events. Human disturbance, however, has longer-lasting impacts. Chapters are by authors with many years of experience in Puerto Rico and other tropical areas and cover the history of research in these mountains, a framework for understanding disturbance and response, the environmental setting, the disturbance regime, response to disturbance, biotic mechanisms of response, management implications, and future directions. The text provides a strong perspective on tropical ecosystem dynamics over multiple scales of time and space.

Amphibian species around the world are unusually vulnerable to a variety of threats, by no means all of which are properly understood. Volume 11 in this major series is published in parts devoted to the causes of amphibian decline and to conservation measures in regions of the world. This volume, Part 5 in the series, is concerned with Northern Europe (Luxembourg, Germany, Poland, Switzerland, Austria, Czech Republic, Slovakia, Norway, Sweden, Finland, Estonia, Latvia, Lithuania, Denmark). Each chapter has been written by experts from each country, describing the ecological background and the conservation status of affected species, with an emphasis on native species. As well as infectious diseases and parasites, threats take the form of introduced and invasive species, pollution, destruction and alteration of habitat, and climatic change. These are discussed as they affect each species. All these countries have monitoring schemes and conservation programs, whose origins and activities are described. Recommendations for action are also made. Edited by leading scholars in the field, Volume 11, when complete, will provide a definitive survey of the amphibian predicament and a stimulus to further research with the objective of arresting the global decline of an entire class of animal.

This book sheds light on the major functions of microbial communities in aquaculture ecosystems, showing that by recycling nutrients, degrading organic matter and preventing disease outbreaks, a variety of microbes are truly beneficial to a wide range of aquaculture industries. It discusses how deteriorating environmental quality enables some microbial strains to trigger disease, describes the development of highly sustainable tools to improve water quality, and identifies crucial factors that endanger microbial homeostasis in aquaculture ecosystems. The book also covers post-antibiotic approaches for preventing and treating opportunistic microbial infections based on harnessing environmental and fish-associated microbial communities. Furthermore, it explores how manipulating and engineering these complex microbial communities using bio-agents such as probiotics, phages, natural nutritional additives, or with fine-tuned biofilters will open the door for new ways to develop a more sustainable and cost-effective aquaculture industry. Including an accessible presentation of modern high-throughput sequencing technology to identify host-microbial interactions in aquaculture ecosystems, this book is a valuable resource for scientists, aquaculture and fishery experts, sustainability enthusiasts and scholars in the areas of biology and marine agriculture.

Australia's varied grasslands have suffered massive losses and changes since European settlement, and those changes continue under increasingly intensive human pressures for development and agricultural production. The values of native grasslands for conservation of endemic native biodiversity, both flora and fauna, have led to strong interests in the protection of remaining fragments, especially near urban centres, and documentation of the insects and other inhabitants of grasslands spanning tropical to cool temperate parts of the country. Attention to conservation of grassland insects in Australia is relatively recent, but it is increasingly apparent that grasslands harbour many localised and ecologically specialised endemic species. Their conservation necessarily advances from very incomplete documentation, and draws heavily on lessons from the far better-documented grasslands elsewhere, most notably in the northern hemisphere, and undertaken over far longer periods. From those cases, and the extensive background to grassland management to harmonise conservation with production and amenity values through honing use of processes such as grazing, mowing and fire, the needs and priorities for Australia can become clearer, together with needs for grassland restoration at a variety of scales. This book is a broad overview of conservation needs of grassland insects in Australia, drawing on the background provided elsewhere in the world on the responses to disturbances, and the ecological importance, of some key insect groups (notably Orthoptera, Hemiptera and Lepidoptera) to suggest how insect conservation in native, pastoral and urban grasslands may be advanced. The substantial references given for each chapter facilitate entry for non-entomologist grassland managers and stewards to appreciate the diversity and importance of Australia's grassland insects, their vulnerabilities to changes, and the possibilities for conserving them and the wider ecological roles in which they participate.