Most aquatic ecosystems have variable water levels. These water-level fluctuations (WLF) have multiple effects on the organisms above and below the waterline. Natural WLF patterns in lakes guarantee both productivity and biodiversity, while untimely floods and droughts may have negative effects. Human impacts on WLF have led to a stabilization of the water levels of many lakes by hydraulic regulation, untimely drawdown due to water use, or floods due to water release from hydropower plants in the catchments.

This book provides a first review in this field. It presents selected papers on the ecological effects of WLF in lakes, resulting from a workshop at the University of Konstanz in winter 2005. Issues addressed here include the extent of WLF, and analyses of their effects on different groups of biota from microorganisms to vertebrates. Applied issues include recommendations for the hydrological management of regulated lakes to reduce negative impacts, and a conceptual framework is delivered by an extension of the floodpulse concept for lakes. Current impacts on water use, including increasing demands on drinking and irrigation water, hydropower etc., and climate change effects on WLF make this book an essential resource for aquatic ecologists, engineers, and decision-makers dealing with the management of lake ecosystems and their catchments.

This is a fully up-to-date and comprehensive photographic field guide to the snakes of Europe, North Africa and the Middle East. Lavishly illustrated with 387 color photographs, it includes coverage of all 122 snake species found in these regions. The guide's detailed introduction discusses snake anatomy, biology, habitats and taxonomy. It also explores the health of snakes in captivity and conservation measures, and provides a succinct explanation of the chemical composition, physical effects and cultural uses of snake venom. Species accounts are arranged taxonomically and provide identification features, a description of the species' habitat and behavior and information about whether a snake is venomous. Abundant distribution maps describe each species' geographic variation and usual habitats. Clear photos aid identification and are supplemented with illustrations highlighting key anatomical features. A table of all species, country by country, is included at the back of the book. The first dedicated field guide on snakes to appear in many years, Snakes of Europe, North Africa and the Middle East will be indispensable for anyone interested in learning more about these unique reptiles. Highlights all 122 snake species found in the region Features 387 excellent photos supplemented with diagrams Reflects most recent classification and scientific research Provides each species' identification details, habitat, behavior and much more Includes distribution maps for all species

An ambitious and beautifully illustrated account of the evolution and biology of insects. Insects are the busy, teeming arthropods on whose activities much of life on earth depends, and whose global populations are currently under the gravest of threats - with unimaginable consequences for us all. In Alien Worlds, Steve Nicholls explores nothing less than a complete natural history of insects, bringing us on a journey through a world of a million species and their phenomenal and extraordinary diversity. A fantastically authoritative and congenial guide, led by a fluent and entertaining writer with the ability to make complex ideas comprehensible, it is not only a feast for the curious mind but also contains beautiful and visually arresting imagery of the tiny beasts whom we depend on greatly.

Flight has fascinated humans since we first looked into the sky and saw birds on the wing, and no flights are more fascinating than the extraordinary migrations birds make every day, week, month, and season of the year. Migration explores how birds make these incredible expeditions. From first preparing to migrate, to the different types of migration and the compelling reasons why it is a must. From the high-flying adventures of bar-headed geese that soar above the Himalayan Mountains and the long-distance endurance of Arctic terns that travel from pole-to-pole, birds of all families, from vast seasonal migrators to the more casual nomad, will be explored. As readers migrate through the book's pages, they will also discover avian navigation, curious routes, the hazards of the journey, and why, occasionally, birds end up far from their original destination. Beautifully illustrated, this book will debunk the most outrageous myths about migration as it thoroughly travels the globe exploring the epic journeys these incredible birds make.

Keith Culver and David Castle Introduction Aquaculture is at the leading edge of a surprisingly polarized debate about the way we produce our food. According to the United Nations Food and Agriculture Organization, aquaculture production has increased 8. 8% per year since 1970, far surpassing productivity gains in terrestrial meat production at 2. 8% in the same period (FAO 2007). Like the 'green revolution' before it, the 'blue revolution' in aquaculture promises rapidly increased productivity through technology-driven - tensi?cation of aquaculture animal and plant production (Costa-Pierce 2002; The Economist 2003). Proponents of further aquaculture development emphasize aq- culture's ancient origins and potential to contribute to global food security d- ing an unprecedented collapse in global ?sheries (World Fish Center; Meyers and Worm 2003; Worm et al. 2006). For them, technology-driven intensi?cation is an - dinary and unremarkable extension of past practice. Opponents counter with images of marine and freshwater environments devastated by intensive aquaculture pr- tices producing unsustainable and unhealthy food products. They view the promised revolutionasascam, nothingmorethanclever marketingbypro?t-hungry ?shfa- ers looking for ways to distract the public from the real harms done by aquaculture. The stark contrast between proponents and opponents of modern aquaculture recalls decades of disputes about intensive terrestrial plant and animal agriculture, disputes whose vigor shows that the debate is about much more than food production (Ruse and Castle 2002).

Rivers have been vitally important to human populations worldwide for millennia as “highways” for inland travel, and as sources of water for drinking, cooking, cleaning, manufacturing, irrigation, and power generation, as well as repositories for human, animal, and industrial wastes. This accessible textbook takes a broad approach to river ecology, covering the basics but going beyond by including topics that are often overlooked such as blackwater streams and rivers, tidal creek ecosystems, and reservoir limnology. Since most running water (lotic) systems have been altered or impacted by human activities, there is significant emphasis on anthropogenic impacts, including sedimentation, nutrient pollution and related eutrophication issues as well as the effects of dams and river fragmentation, power plant operations, chemical contamination, wastewater treatment discharges, industrial scale livestock production, invasive species, and rural and urban storm water runoff on river ecosystems. Advances in stream and river restoration are also discussed.

We developed the first edition of this book because we perceived a need for a compilation on study design with application to studies of the ecology, conser- tion, and management of wildlife. We felt that the need for coverage of study design in one source was strong, and although a few books and monographs existed on some of the topics that we covered, no single work attempted to synthesize the many facets of wildlife study design. We decided to develop this second edition because our original goal - synthesis of study design - remains strong, and because we each gathered a substantial body of new material with which we could update and expand each chapter. Several of us also used the first edition as the basis for workshops and graduate teaching, which provided us with many valuable suggestions from readers on how to improve the text. In particular, Morrison received a detailed review from the graduate s- dents in his "Wildlife Study Design" course at Texas A&M University. We also paid heed to the reviews of the first edition that appeared in the literature.

Organotin compounds, used as antifouling biocides since 1960, are chemical compounds that act as endocrine disrupters. It is not known how organotin compounds cause hormone disturbance, however, and many questions remain about their effect on aquatic organisms. Studies on organotin compounds have recently evolved, with many new findings reported. Following a worldwide ban on organotin compounds in 2008, alternative compounds will mainly be used, with the potential for coastal areas to become contaminated, causing, among other effects, cholinesterase inhibition in aquatic organisms. Use of alternative compounds must be controlled to avoid such errors. These and other findings are described and concisely summarized in this book, providing a useful reference in countries where alternative biocides are being considered. Included are studies on the effects on marine organisms, making this book an excellent aid to experts in environmental chemistry, to government organizations, and to students.

In recent years nobody could have failed to notice the frequent and often sensati- alist media headlines warning of the latest global disease threat to humankind. But behind all the hyperbole lie real challenges related to dealing with the increasing incidence of emerging zoonotic disease events, the majority of which are thought to originate in wildlife (Jones et al. 2008). There are also many important diseases of domestic livestock which also occur in wildlife (e. g. foot and mouth disease and classical swine fever in wild boar, bovine tuberculosis in deer, badgers or possums), some of which can have a devastating impact on the farming industry, the wider rural economy and ultimately the public purse. But we should also not forget that wildlife diseases may have serious implications for the conservation of biodiversity. For some of the rarest, most endangered species (such as the Ethiopian wolf) d- ease may pose the greatest threat to their survival. If we are to avoid or reduce these impacts then we must improve our ability to detect and manage the risks associated with disease in wildlife populations. This is a challenge that will require expertise from many different disciplines: veterinary, ecological, medical, economic, poli- cal and zoological. In such an interdisciplinary field it is difficult to stay up to date with contemporary ideas and with techniques that may be rapidly evolving.

Whales and dolphins are icons for the conservation movement. They are the most conspicuous ambassadors for entire marine ecosystems and possibly even for the biosphere as a whole. Concurrent with our realisation of impending threats to their environment is a growing scientific understanding of the social and cognitive complexity of many of these species. This book brings together experts in the relevant diverse fields of cetacean research, to provide authoritative descriptions of our current knowledge of the complex behaviour and social organization of whales and dolphins. The authors consider this new information in the context of how different human cultures from around the world view cetaceans and their protection, including attitudes to whaling. They show how new information on issues such as cetacean intelligence, culture and the ability to suffer, warrants a significant shift in global perceptions of this group of animals and how these changes might be facilitated to improve conservation and welfare approaches.

Illuminating the conditions for global governance to have precipitated the devastating decline of one of the ocean's most majestic creatures The International Commission for the Conservation of Atlantic Tunas (ICCAT) is the world's foremost organization for managing and conserving tunas, seabirds, turtles, and sharks traversing international waters. Founded by treaty in 1969, ICCAT stewards what has become under its tenure one of the planet's most prominent endangered fish: the Atlantic bluefin tuna. Called "red gold" by industry insiders for the exorbitant price her ruby-colored flesh commands in the sushi economy, the giant bluefin tuna has crashed in size and number under ICCAT's custodianship. With regulations to conserve these sea creatures in place for half a century, why have so many big bluefin tuna vanished from the Atlantic? In Red Gold, Jennifer E. Telesca offers unparalleled access to ICCAT to show that the institution has faithfully executed the task assigned it by international law: to fish as hard as possible to grow national economies. ICCAT manages the bluefin not to protect them but to secure export markets for commodity empires-and, as a result, has become complicit in their extermination. The decades of regulating fish as commodities have had disastrous consequences. Amid the mass extinction of all kinds of life today, Red Gold reacquaints the reader with the splendors of the giant bluefin tuna through vignettes that defy technoscientific and market rationales. Ultimately, this book shows, changing the way people value marine life must come not only from reforming ICCAT but from transforming the dominant culture that consents to this slaughter.

Native only to the California Channel Islands, the island fox is the smallest canid in North America. Populations on four of the islands were threatened to extinction in the 1990s due to human-mediated predation and disease. This is the first account of the natural history and ecology of the island fox, illustrating both the vulnerability of island ecosystems and the efficacy of cooperative conservation measures. It explains in detail the intense conservation actions required to recover fox populations, such as captive breeding and reintroduction, and large-scale ecosystem manipulation. These actions were successful due in large part to extraordinary collaboration among the scientists, managers and public advocates involved in the recovery effort. The book also examines the role of some aspects of island fox biology, characteristic of the 'island syndrome', in facilitating their recovery, including high productivity and an apparent adaptation to periodic genetic bottlenecks.

As humans continue to encroach on wildlands, quality and quantity of wildlife habitat decreases before our eyes. A housing development here, a shopping mall there, a few more trees cut here, another road put in there, each of these diminishes available habitat. Unless the cumulative effects of multiple simultaneous development projects are recognized and incorporated at the beginning of project development, we will continue to see wildlife habitat disappear at unprecedented rates. Divided into two parts, Cumulative Effects in Wildlife Management emphasizes the importance of recognizing cumulative effects and highlights the necessity of their bearing on future policy. It begins with an outline of the differences between direct, indirect, and cumulative effects of anthropogenic impacts on wildlife habitat and addresses the similarities and differences in US and Canadian policies, legal and economic ramifications, and the confusion that stems from lack of consideration, communication, and forward planning. Section 1 also describes the current standard means of quantifying cumulative effects as proposed by the Council on Environmental Quality. Section 2 presents a series of case studies that deepen our appreciation of how anthropogenic influences interconnect and how this heightened level of understanding influences our ability to make informed decisions. Case studies include cumulative effects in the Canadian Arctic, border issues with Mexico, suburban and exurban landscapes, scenic resources, and the cumulative impacts of energy development on sage-grouse. Without a conscious knowledge of what is happening around us, we will not be able to incorporate an effective land ethic, and natural resources will be the ultimate loser. Cumulative Effects in Wildlife Management brings to light the crucial connections between human expansion and habitat destruction for those managers and practi

The second book in the BATTLE OF THE BEETLES series - perfect for fans of Roald Dahl! 'Truly great storytelling.' MICHAEL MORPURGO on BEETLE BOY 'I predict Beetle-mania' THE TIMES on BEETLE BOY 'Roald Dahl meets 101 Dalmatians in a rollicking ride, full of adventure with vivid characters' EXPRESS on BEETLE BOY Cruel beetle fashionista, Lucretia Cutter, is at large with her yellow ladybird spies. When Darkus, Virginia and Bertolt discover further evidence of her evil, they're determined to stop her. But the three friends are in trouble. Darkus' dad has forbidden them to investigate any further - and disgusting crooks Humphrey and Pickering are out of prison. Hope rests on Novak, Lucretia's daughter and a Hollywood actress, but the beetle diva is always one scuttle ahead ... The second book in MG Leonard's acclaimed trilogy, followed by Battle of the Beetles! Featuring exotic beetles, a daring quest, a mixture of bold male and female characters and a truly venomous villain The story follows Darkus, Bertolt and Virginia - and their beetle pals - as they investigate the wicked 'Beetle Queen' Lucretia From the author of the Adventure on Trains series, co-written with Sam Sedgman

This book comprehensively addresses the economic, social and institutional difficulties in conserving biodiversity and the ecosystem services that it provides. It covers a wide range of issues such as biodiversity, ecosystem services and valuation in the context of diverse ecosystems such as tropical forests, marine areas, wetlands and agricultural landscapes, non-timber forest products, incentives and institutions, payments for ecosystem services, governance, intellectual property rights and the protection of traditional knowledge, management of protected areas, and climate change and biodiversity. It also covers the application of environmental economics and institutional economics to different cases and the use of techniques such as contingent valuation method and game theory. The book spans the globe with case studies drawn from a cross section of regions and continents including the UK, US, Europe, Australia, India, Africa and South America.

The second edition of this widely cited textbook continues to provide a concise but comprehensive introduction to cave and subterranean biology, describing this fascinating habitat and its biodiversity. It covers a range of biological processes including ecosystem function, evolution and adaptation, community ecology, biogeography, and conservation. The authors draw on a global range of examples and case studies from both caves and non-cave subterranean habitats. One of the barriers to the study of subterranean biology has been the extraordinarily large number of specialized terms used by researchers; the authors explain these terms clearly and minimize the number that they use. This new edition retains the same 10 chapter structure of the original, but the content has been thoroughly revised and updated throughout to reflect the huge increase in publications concerning subterranean biology over the last decade.

When this book was first published in 1989, attempts to reintroduce plants or animals into their native habitat were still relatively rare, and those that were adequately planned, designed, funded and monitored over the course of years are even scarcer. The oryx story is an exception to this, and has the added interest that it represents the first attempt to re-establish a wild population of a species when there were no others left outside captivity. This meant that zoo-bred animals had to be prepared for release into the oryx's extreme and demanding habitat in the deserts of central Oman. This book will be accessible to the informed conservationist, amateur or professional.

Named by Forbes as one of the 12 Best Books About Birds and Birding in 2017 After stumbling upon a book of photographs depicting extinct animals, B.J. Hollars became fascinated by creatures that are no longer with us: specifically, extinct North American birds. How, he wondered, could we preserve so beautifully on film what we've failed to preserve in life? And so begins his yearlong journey to find out, one that leads him from bogs to art museums, from archives to Christmas Bird Counts, until he at last comes as close to extinct birds as he ever will during a behind-the-scenes visit at the Chicago Field Museum. Heartbroken by the birds we've lost, Hollars takes refuge in those that remain. Armed with binoculars, a field guide, and knowledgeable friends, he begins his transition from budding birder to environmentally conscious citizen, a first step on a longer journey toward understanding the true tragedy of a bird's song silenced forever. Told with charm and wit, Flock Together is a remarkable memoir that shows how "knowing" the natural world-even just a small part-illuminates what it means to be a global citizen and how only by embracing our ecological responsibilities do we ever become fully human. A moving elegy to birds we've lost, Hollars's exploration of what we can learn from extinct species will resonate in the minds of readers long beyond the final page.

The second edition of "Tigers of the World" explores tiger biology, ecology, conservation, management, and the science and technology that make this possible. In 1988, when the first edition was published, tiger conservation was still in its infancy, and two decades later there has been a revolution not only in what is known, but how information about tigers is obtained and disseminated. In the fast changing world of conservation, there is a great need to summarize the vast and current state-of-the-art, to put this into historical perspective, and to speculate in what yet remains to be done. "Tigers of the World, 2e" fulfills this need by bringing together in a unique way the world s leading tiger experts into one volume. Despite the challenges ahead, there are bright spots in this story and lessons aplenty not only for tiger specialists but large carnivore specialists, conservation biologists, wildlife managers, natural resource policymakers, and most importantly the caring public.

*Examines the past twenty years of research from the world s leading tiger expertson biology, politics, and conservation.

*Describes latest methods used to disseminate and obtaininformation needed for conservation and care of this species.

*Includes coverage on genetics and ecology, policy, poaching and trade, captive breeding and farming, and the status of Asia s last wild tigers.

*Excellent resource for grad courses in conservation biology, wildlife management, and veterinary programs.

*New volume continues the classic Noyes Series in Animal Behavior, Ecology, Conservation and Management. "

Biological invaders represent one of the primary threats to the maintenance of global biodiversity, human health, and the success of human economic enterprises. The continuing globalization of our society ensures that the need to understand the process of biological invasion will only increase in the future. There is also a growing recognition that the study of biological invaders provides a unique insight into basic questions in ecology and evolution.
The study of exotic birds has had a particularly long history and has come to represent a fascinating intersection between the study of biological invasions, avian conservation biology, and basic principles of ecology and evolution. Avian Invasions summarizes and synthesizes this unique historical record and unravels the insights that the study of exotic birds brings to all three of these research strands. It includes chapters on the well-known contributions of exotic bird study to ecological science, and on the post-establishment evolution of introduced bird populations. The result is the most comprehensive picture yet of the invasion process.
Avian Invasions is aimed at professional avian biologists and ornithologists as well as graduate students of avian ecology, evolution and conservation. It also appeals to a more general audience of invasion ecologists.

This book is unique in providing a global overview of alpine (high mountain) habitats that occur above the natural (cold-limited) tree line, describing the factors that have shaped them over both ecological and evolutionary timescales. The broad geographic coverage helps synthesize common features whilst revealing differences in the world's major alpine systems from the Arctic to the Tropics. The words "barren" and "wasteland" have often been applied to describe landscapes beyond the tree line. However, a closer look reveals a large diversity of habitats, assemblages and individual taxa in the alpine zone, largely connected to topographic diversity within individual alpine regions.
The book considers habitat-forming factors (landforms, energy and climate, hydrology, soils, and vegetation) individually, as well as their composite impacts on habitat characteristics. Evolution and population processes are examined in the context of the responsiveness/resilience of alpine habitats to global change. Finally, a critical assessment fo the potential impacts of climate change, atmospheric pollutants and land use is made and related to the management and conservation options available for these unique habitats.
Interest in mountains continues to grow as their resource importance is increasingly recognized. This accessible text is suitable for both senior undergraduate and graduate students taking courses in ecology and environmental sciences as well as the many professional ecologists and conservation biologists requiring a concise, authoritative overview of the topic.
Each of the books in the Oxford Biology of Habitats Series introduces a different habitat, and gives an integrated overview of the design, physiology, ecology, and behaviour of the organisms found there. The practical aspects of working within each habitat, the sorts of studies that are possible, and habitat biodiversity and conservation status are all explored.

Tillage agriculture has led to widespread soil and ecosystem degradation globally. This is especially so in Africa where traditional and modern tillage-based agricultural practices have become unsustainable due to severe disturbance and exploitation of natural resources, with negative impacts on the environment and rural livelihoods. In addition, agriculture in Africa today faces major challenges including increased costs of production and energy, the effects of climate change, and the lack of an effective paradigm for sustainable intensification, especially for small- and medium-size holdings. Africa is facing a serious challenge to food security and as a continent has not advanced towards eradicating hunger. In addition, the population is still growing much faster than on most other continents. This pressure has led to the emergence of no-till conservation agriculture as a serious alternative sustainable agriculture paradigm. In Africa, in recent years, conservation agriculture techniques and methods have spread to many countries, as greater development, education and research effort are directed towards its extension and uptake. This book is aimed at agricultural researchers and scientists, educationalists, and agricultural service providers, institutional leaders and policy makers working in the fields of sustainable agriculture and international development, and also at agroecologists, conservation scientists, and those working on ecosystem services. This book: * Focuses on research and development initiatives in Africa aimed at building resilient farming systems based on conservation agriculture principles and practices. * Summarises the status of conservation agriculture in Africa today and prospects for its future development in Africa as a basis for sustainable agriculture intensification. * Describes case studies showing the performance of conservation agriculture in Africa.

When Bill Weber and Amy Vedder arrived in Rwanda to study mountain gorillas with Dian Fossey, the gorilla population was teetering toward extinction. Poaching was rampant, but it was loss of habitat that most endangered the gorillas. Weber and Vedder realized that the gorillas were doomed unless something was done to save their forest home. Over Fossey's objections, they helped found the Mountain Gorilla Project, which would inform Rwandans about the gorillas and the importance of conservation, while at the same time establishing an ecotourism project -- one of the first anywhere in a rainforest -- to bring desperately needed revenue to Rwanda. In the Kingdom of Gorillas introduces readers to entire families of gorillas, from powerful silverback patriarchs to helpless newborn infants. Weber and Vedder take us with them as they slog through the rain-soaked mountain forests, observing the gorillas at rest and at play. Today the population of mountain gorillas is the highest it has been since the 1960s, and there is new hope for the species' fragile future even as the people of Rwanda strive to overcome ethnic and political differences.

This book comprehensively addresses the economic, social and institutional difficulties in conserving biodiversity and the ecosystem services that it provides. It covers a wide range of issues such as biodiversity, ecosystem services and valuation in the context of diverse ecosystems such as tropical forests, marine areas, wetlands and agricultural landscapes, non-timber forest products, incentives and institutions, payments for ecosystem services, governance, intellectual property rights and the protection of traditional knowledge, management of protected areas, and climate change and biodiversity. It also covers the application of environmental economics and institutional economics to different cases and the use of techniques such as contingent valuation method and game theory. The book spans the globe with case studies drawn from a cross section of regions and continents including the UK, US, Europe, Australia, India, Africa and South America.