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Books > Earth & environment > The environment > Conservation of the environment > Conservation of wildlife & habitats > General

The Colobines - Natural History, Behaviour and Ecological Diversity (Hardcover, New Ed): Ikki Matsuda, Cyril C Grueter, Julie... The Colobines - Natural History, Behaviour and Ecological Diversity (Hardcover, New Ed)
Ikki Matsuda, Cyril C Grueter, Julie A. Teichroeb
R2,972 Discovery Miles 29 720 Ships in 10 - 15 working days

The Colobines are a group of Afroeurasian monkeys that exhibit extraordinary behavioural and ecological diversity. With long tails and diverse colourations, they are medium-sized primates, mostly arboreal, that are found in many different habitats, from rain forests and mountain forests to mangroves and savannah. Over the last two decades, our understanding of this group of primates has increased dramatically. This volume presents a comprehensive overview of the current research on colobine populations, including the range of biological, ecological, behavioural and societal traits they exhibit. It highlights areas where our knowledge is still lacking, and outlines the current conservation status of colobine populations, exploring the threats to their survival. Bringing together international experts, this volume will aid future conservation efforts and encourage further empirical studies. It will be of interest to researchers and graduate students in primatology, biological anthropology and conservation science. Additional online resources can be found at www.cambridge.org/colobines.

Species Conservation - Lessons from Islands (Paperback): Jamieson A. Copsey, Simon A. Black, Jim J. Groombridge, Carl G. Jones Species Conservation - Lessons from Islands (Paperback)
Jamieson A. Copsey, Simon A. Black, Jim J. Groombridge, Carl G. Jones
R1,253 Discovery Miles 12 530 Ships in 10 - 15 working days

This book brings together leading conservation practitioners to reflect on their response to the current global biodiversity crisis, through the lens of island species recovery and management. Initial chapters cover the biological understanding of small population biology and the growing threat of invasive species, while subsequent chapters discuss the management of these threats and the complexity of leading projects within a dynamic and still relatively unknown system. Multiple case studies from islands worldwide illustrate key points, allowing readers to draw on the first-hand practical experience of experienced professionals. This resource will be invaluable to both current and future conservation professionals, helping them to go beyond disciplinary 'comfort zones' and develop, manage and lead projects over extensive timeframes in a way that brings others with them on the journey.

Natural Resource Management and Local Development (Paperback, 2011 ed.): Russel D. Taylor, Emmanuel Torquebiau Natural Resource Management and Local Development (Paperback, 2011 ed.)
Russel D. Taylor, Emmanuel Torquebiau
R3,542 R3,256 Discovery Miles 32 560 Save R286 (8%) Ships in 9 - 17 working days

Natural resource management by rural citizens in tropical regions is crucial both to the conservation of biodiversity and ecosystem processes, but also to the the well-being and food security of the people that live there. This situation is especially acute in Africa where conflicts between habitat destruction and utilization can arise in areas which are important not only for biodiversity but for the long-term maintenance of ecosystems on which the people ultimately rely. There can also be conflicts between outside specialists and the indigenous knowledge of local communities. A holistic approach involving local peoples in management of their natural resources is therefore essential. A range of approaches to the problem is explored here in relation to natural resource management to local development and livelihoods, and the multi-functional nature of land-use. Major topics debated are the dichotomy between strictly protected areas and ones including human activity, people-centred rather than legally enforced conservation, market forces, and the interrelationships between agriculture and conservation. The book has 12 chapters, prepared by researchers actively involved in community aspects of natural resource management in Africa, and is based on an international workshop held in Niamey, Niger, in 2008. It will be of interest to all involved in the community approach to biodiversity conservation in less developed countries generally and not only in Africa as many of the issues addressed are pertinent globally. Reprinted from Biodiversity and Conservation 18: 10 (2009).

Insect Conservation: Past, Present and Prospects (Paperback, 2012 ed.): Tim R. New Insect Conservation: Past, Present and Prospects (Paperback, 2012 ed.)
Tim R. New
R4,914 R4,488 Discovery Miles 44 880 Save R426 (9%) Ships in 9 - 17 working days

The history of interest and practice in insect conservation is summarised and traced through contributions from many of the leaders in the discipline, to provide the first broad global account of how insects have become incorporated into considerations of conservation. The essays collectively cover the genesis and development of insect conservation, emphasising its strong foundation within the northern temperate regions and the contrasts with much of the rest of the world. Major present-day scenarios are discussed, together with possible developments and priorities in insect conservation for the future.

Oceans in Decline (Paperback, 1st ed. 2019): Sergio Rossi Oceans in Decline (Paperback, 1st ed. 2019)
Sergio Rossi
R767 R681 Discovery Miles 6 810 Save R86 (11%) Ships in 18 - 22 working days

What is happening in our oceans? By describing their main elements, this book shows how and why the oceans are being transformed, and suggests possible future scenarios to address this complex, yet often-asked, question. The ocean is being dramatically transformed, but the magnitude of this transformation remains unclear since the ocean is largely inaccessible and still unknown: there is more information about the outer universe than about the deepest parts of our oceans. The author, a marine biologist with extensive research experience, offers a holistic view of our oceans. Focusing on fishing, pollution and the effects of climate change, he identifies and describes the changes occurring in all marine ecosystems, and discusses the long-passed state of equilibrium.

Infrastructure Development and Ape Conservation: Volume 3 (Hardcover): Arcus Foundation Infrastructure Development and Ape Conservation: Volume 3 (Hardcover)
Arcus Foundation
R2,531 Discovery Miles 25 310 Ships in 10 - 15 working days

Infrastructure development in Africa and Asia is expanding at breakneck speed, largely in biodiversity-rich developing nations. The trend reflects governments' efforts to promote economic growth in response to increasing populations, rising consumption rates and persistent inequalities. Large-scale infrastructure development is regularly touted as a way to meet the growing demand for energy, transport and food - and as a key to poverty alleviation. In practice, however, road networks, hydropower dams and 'development corridors' tend to have adverse effects on local populations, natural habitats and biodiversity. Such projects typically weaken the capacity of ecosystems to maintain ecological functions on which wildlife and human communities depend, particularly in the face of climate change. This title is also available as Open Access via Cambridge Core.

Rewilding Africa - Restoring the Wilderness on a War-ravaged Continent (Paperback): Grant Fowlds, Graham Spence Rewilding Africa - Restoring the Wilderness on a War-ravaged Continent (Paperback)
Grant Fowlds, Graham Spence
R493 R450 Discovery Miles 4 500 Save R43 (9%) Ships in 9 - 17 working days

Conservationist Grant Fowlds lives to save and protect Africa's rhinos, elephants and other iconic wildlife, to preserve their habitats, to increase their range and bring back the animals where they have been decimated by decades of war, as in Angola, Mozambique and the Democratic Republic of the Congo. This vivid account of his work tells of a fellow conservationist tragically killed by the elephants he was seeking to save and a face-off with poachers, impoverished rural people exploited by rapacious local businessmen. Fowlds describes the impact of the Covid pandemic on conservation efforts, the vital wildlife tourism that sustains these and rural communities; and tells of conservationists' efforts to support people through the crisis. Lockdowns may have brought a welcome lull in rhino and other poaching, but also brought precious tourism to a standstill. He shows how the pandemic has highlighted the danger to the world of the illicit trade in endangered wildlife, some of it sold in 'wet markets', where pathogens incubate and spread. He describes a restoration project of apartheid-era, ex-South African soldiers seeking to make reparations in Angola, engulfed for many years in a profoundly damaging civil war, which drew in outside forces, from Cuba, Russia and South Africa, with a catastophic impact on that country's wildlife. Those who fund conservation, whether in the US, Zambia or South Africa itself, are of vital importance to efforts to conserve and rewild: some supposed angel-investors turn out to be not what they had appeared, some are thwarted in their efforts, but others are open-hearted and generous in the extreme, which makes their sudden, unexpected death an even greater tragedy. A passionate desire to conserve nature has also brought conservationists previously active in far-off Venezuela to southern Africa. Fowlds describes fraught meetings to negotiate the coexistence of wildlife and rural communities. There are vivid accounts of the skilled and dangerous work of using helicopters to keep wildebeest, carrying disease, and cattle apart, and to keep elephants from damaging communal land and eating crops such as sugar cane. He tells of a project to restore Africa's previously vast herds of elephants, particularly the famed 'tuskers', with their unusually large tusks, once prized and hunted almost to extinction. The range expansion that this entails is key to enabling Africa's iconic wildlife to survive, to preserving its wilderness and, in turn, helping humankind to survive. There is a heartening look at conservation efforts in Mozambique, a country scarred by years of war, which are starting to bear fruit, though just as a new ISIS insurgency creates havoc in the north of the country. What will humanity's relationship with nature be post-pandemic? Will we have begun to learn that by conserving iconic wildlife and their habitats we help to preserve and restore precious pockets of wilderness, which are so vital not only the survival of wildlife, but to our own survival on our one precious planet.

Aiming to Save - A Vet's Life in Conservation (Paperback): Larry Patterson Aiming to Save - A Vet's Life in Conservation (Paperback)
Larry Patterson
R425 R393 Discovery Miles 3 930 Save R32 (8%) Ships in 9 - 17 working days

Pursuing a dream instilled by early David Attenborough television adventures, a young man from the industrial northwest of England is advised at school to become a veterinary surgeon as a first step towards a career working with wild animals in Africa. His misgivings about the values and justification of domestic veterinary practice are contrasted with a passion for wilderness and wildlife conservation. Early experiences in the vivid Uganda of Idi Amin are juxtaposed with life in a grey Pennines veterinary practice. Eventually arriving as a veterinary officer in newly independent Botswana he finds adventure with wild animals as a veterinarian and later as an ecologist, survey pilot, game capture operator and even a safari hunter, becoming a passionate conservationist... all while starting the first veterinary practice in the country.

Beneficial Microorganisms in Agriculture, Aquaculture and Other Areas (Paperback, Softcover reprint of the original 1st ed.... Beneficial Microorganisms in Agriculture, Aquaculture and Other Areas (Paperback, Softcover reprint of the original 1st ed. 2015)
Min-Tze Liong
R2,635 Discovery Miles 26 350 Ships in 18 - 22 working days

This book focuses on the use of microorganisms in relation to agriculture, aquaculture and related fields, ranging from biofertilizers to poultry production. The latest innovations are also included to provide insights into the unlimited potentials of microorganisms in these areas.Individual chapters explore topics such as probiotics in poultry, biopurification of wastewater, converting agrowastes into value-added applications and products, rice cultivation, surfactants and bacteriocin as biopreservatives, bioplastics, crop productivity, biofloc, and the production of natural antibiotics. This volume will be of particular interest to scientists, policymakers and industrial practitioners working in the fields of agriculture, aquaculture and public health.

YOUMARES 8 - Oceans Across Boundaries: Learning from each other - Proceedings of the 2017 conference for YOUng MARine... YOUMARES 8 - Oceans Across Boundaries: Learning from each other - Proceedings of the 2017 conference for YOUng MARine RESearchers in Kiel, Germany (Paperback, Softcover reprint of the original 1st ed. 2018)
Simon Jungblut, Viola Liebich, Maya Bode
R1,566 Discovery Miles 15 660 Ships in 18 - 22 working days

This open access book presents the proceedings volume of the YOUMARES 8 conference, which took place in Kiel, Germany, in September 2017, supported by the German Association for Marine Sciences (DGM). The YOUMARES conference series is entirely bottom-up organized by and for YOUng MARine RESearchers. Qualified early career scientists moderated the scientific sessions during the conference and provided literature reviews on aspects of their research field. These reviews and the presenters' conference abstracts are compiled here. Thus, this book discusses highly topical fields of marine research and aims to act as a source of knowledge and inspiration for further reading and research.

The Connections Between Ecology and Infectious Disease (Paperback, Softcover reprint of the original 1st ed. 2018): Christon J.... The Connections Between Ecology and Infectious Disease (Paperback, Softcover reprint of the original 1st ed. 2018)
Christon J. Hurst
R5,155 Discovery Miles 51 550 Ships in 18 - 22 working days

This book summarizes current advances in our understanding of how infectious disease represents an ecological interaction between a pathogenic microorganism and the host species in which that microbe causes illness. The contributing authors explain that pathogenic microorganisms often also have broader ecological connections, which can include a natural environmental presence; possible transmission by vehicles such as air, water, and food; and interactions with other host species, including vectors for which the microbe either may or may not be pathogenic. This field of science has been dubbed disease ecology, and the chapters that examine it have been grouped into three sections. The first section introduces both the role of biological community interactions and the impact of biodiversity on infectious disease. In turn, the second section considers those diseases directly affecting humans, with a focus on waterborne and foodborne illnesses, while also examining the critical aspect of microbial biofilms. Lastly, the third section presents the ecology of infectious diseases from the perspective of their impact on mammalian livestock and wildlife as well as on humans. Given its breadth of coverage, the volume offers a valuable resource for microbial ecologists and biomedical scientists alike.

The Bee Book (Hardcover): Jo Byrne The Bee Book (Hardcover)
Jo Byrne
R290 R264 Discovery Miles 2 640 Save R26 (9%) Ships in 9 - 17 working days
Steep Trails - A collection of wilderness essays and tales (Paperback, New edition): John Muir Steep Trails - A collection of wilderness essays and tales (Paperback, New edition)
John Muir; Foreword by Terry Gifford
R342 R320 Discovery Miles 3 200 Save R22 (6%) Ships in 18 - 22 working days

'When a man plants a tree, he plants himself. Every root is an anchor, over which he rests with grateful interest, and becomes sufficiently calm to feel the joy of living.' Steep Trails encompasses a delightful mix of John Muir's essays and adventure narratives, spanning a period of twenty-nine years. The selections included in this book are varied: ranging from geological studies to stories of the people and towns he encounters throughout his exploits. As Muir expert Terry Gifford observes in the foreword, 'Most of Steep Trails' chapters are dispatches from Muir as travelling correspondent with a mixture of insights into local cultures, criticism of pollution and enthusiasm for everything wild.' Muir's refreshing philosophy of being 'at one' with nature shines through every account he details, as does his agenda for environmental activism - to treat wildness lovingly, rather than selfishly for material greed. Covering mostly the western regions of the states, California, Washington, Nevada, The Grand Canyon, Oregon and Utah; Steep Trails showcases Muir's passion continuously as he climbs mountains, bathes in lakes, and sketches his findings. Muir's classic extended metaphors and knowledgeable tone are present throughout, making for both an enjoyable and educational read. The enthusiasm contained within these pages is infectious, and as well as simply describing the beauty he sees, Muir will inspire you too, to 'go and see for yourselves' the rewards of studying the endless gift of nature: 'Surely faithful and loving skill can go no farther in putting the multitudinous decorated forms on paper. But the colours, the living, rejoicing colours, chanting morning and evening in chorus to heaven! Whose brush or pencil, however lovingly inspired, can give us these? And if paint is of no effect, what hope lies in pen-work? Only this: some may be incited by it to go and see for themselves.'

The Diversity of Life (Paperback, New Ed): Edward O. Wilson The Diversity of Life (Paperback, New Ed)
Edward O. Wilson
R374 R340 Discovery Miles 3 400 Save R34 (9%) Ships in 9 - 17 working days

In telling the amazing story of how life on earth came to be so diverse, distinguished scientist Edward O. Wilson defined a new environmental ethic – our obligation to conserve ecosystems, not simply individual species. In an extensive new foreword to this classic work, he assesses the continuing threat that human activity poses to the Earth’s rich biodiversity and, most importantly, explains why we should care.

Birds of Prey - Biology and conservation in the XXI century (Paperback, Softcover reprint of the original 1st ed. 2018): Jose... Birds of Prey - Biology and conservation in the XXI century (Paperback, Softcover reprint of the original 1st ed. 2018)
Jose Hernan Sarasola, Juan Manuel Grande, Juan Jose Negro
R6,566 Discovery Miles 65 660 Ships in 18 - 22 working days

This book will provide the state-of-the-art on most of the topics involved in the ecology and conservation of birds of prey. With chapters authored by the most recognized and prestigious researchers on each of the fields, this book will become an authorized reference volume for raptor biologists and researchers around the world.

The Last Giants - The Rise and Fall of the African Elephant (Hardcover): Levison Wood The Last Giants - The Rise and Fall of the African Elephant (Hardcover)
Levison Wood 1
R577 R518 Discovery Miles 5 180 Save R59 (10%) Ships in 9 - 17 working days

*Levison Wood's documentary series on WALKING WITH ELEPHANTS is available to watch now on Channel 4* This book comes at a critical time. Fifty years ago, Africa was home to just over 1.3 million elephants, but by 1990 the number had halved. Meanwhile in the span of a lifetime, the human population has more than doubled. In Levison Wood's The Last Giants, he explores the rapid decline of one of the world's favourite animals. Filled with stories from his own time spent travelling with elephants in Africa, and documenting their migration in his Channel 4 series, Walking With Elephants, the book is a passionate wake-up call for this endangered species we take for granted. The Last Giants was written to inspire us all to act - to learn more and help save the species from permanent extinction.

Rethinking Fisheries Governance - The Role of States and Meta-Governance (Paperback, Softcover reprint of the original 1st ed.... Rethinking Fisheries Governance - The Role of States and Meta-Governance (Paperback, Softcover reprint of the original 1st ed. 2018)
Hoang Viet Thang
R2,653 Discovery Miles 26 530 Ships in 18 - 22 working days

This book explores how the state can foster collective action by fisher's communities in fisheries management. It presents a different perspective from Elinor Ostrom's classic work on the eight institutional conditions that foster collective action in natural resource management and instead emphasizes the role of the state in fisheries co-management, engaging a state-centric notion of 'meta-governance'. It argues that first, the state is required to foster collective action by fishers; and secondly, that the current fisheries co-management arrangements are state-centric. The study develops these arguments through the analysis of three case studies in Japan, Vietnam and Norway. The author also makes a theoretical contribution to governance literature by developing Ostrom's 'society-centric' framework in a way which makes it more amenable to the analysis of state capacity and government intervention in a comparative context. This book will appeal to students and scholars of global governance, fisheries management, co-management, and crisis management, as well as practitioners of fisheries management.

Humans and Lions - Conflict, Conservation and Coexistence (Paperback): Keith Somerville Humans and Lions - Conflict, Conservation and Coexistence (Paperback)
Keith Somerville
R1,436 Discovery Miles 14 360 Ships in 10 - 15 working days

This book places lion conservation and the relationship between people and lions both in historical context and in the context of the contemporary politics of conservation in Africa. The killing of Cecil the Lion in July 2015 brought such issues to the public's attention. Were lions threatened in the wild and what was the best form of conservation? How best can lions be saved from extinction in the wild in Africa amid rural poverty, precarious livelihoods for local communities and an expanding human population? This book traces man's relationship with lions through history, from hominids, to the Romans, through colonial occupation and independence, to the present day. It concludes with an examination of the current crisis of conservation and the conflict between Western animal welfare concepts and sustainable development, thrown into sharp focus by the killing of Cecil the lion. Through this historical account, Keith Somerville provides a coherent, evidence-based assessment of current human-lion relations, providing context to the present situation. This book will be of interest to students and scholars of environmental and African history, wildlife conservation, environmental management and political ecology, as well as the general reader.

Genetic Resources of Neotropical Fishes (Paperback, Softcover reprint of the original 1st ed. 2017): Alexandre W. S. Hilsdorf,... Genetic Resources of Neotropical Fishes (Paperback, Softcover reprint of the original 1st ed. 2017)
Alexandre W. S. Hilsdorf, Eric M. Hallerman
R4,011 Discovery Miles 40 110 Ships in 18 - 22 working days

The aim of this book is to systematize and discuss population genetic studies of freshwater fish in a region that harbors the greatest diversity of species among all inland water ecosystems. This volume explores the genetic evaluation for a number of orders, families and species of Neotropical fishes, and provides an overview on genetic resources and diversity and their relationships with fish domestication, breeding, and food production.

The Antarctic Silverfish: a Keystone Species in a Changing Ecosystem (Paperback, Softcover reprint of the original 1st ed.... The Antarctic Silverfish: a Keystone Species in a Changing Ecosystem (Paperback, Softcover reprint of the original 1st ed. 2017)
Marino Vacchi, Eva Pisano, Laura Ghigliotti
R2,663 Discovery Miles 26 630 Ships in 18 - 22 working days

This book encompasses the body of available scientific information on the notothenioid fish Pleuragramma antarctica commonly known as Antarctic silverfish. This plankton-feeder of the intermediate trophic level is the most abundant fish in the coastal regions of high Antarctica, and plays a pivotal ecological role as the main prey of top predators like seals, penguins, whales and Antarctic toothfish. Broad circum-polar distribution, a key role in the Antarctic shelf pelagic ecosystem, and adaptations makes understanding the species' likely response to environmental change relevant to foresee the potential responses at the local ecosystem level. Additionally, a detailed understanding of the abundance and trophic interactions of such a dominant keystone species is a vital element of informing the development of marine spatial planning and marine protected areas in the Antarctic continental shelf region. Experts in the field provide here unique insights into the evolutionary adaptation, eco-physiology, trophic ecology, reproductive and population ecology of the Antarctic silverfish and provide new clues about its vulnerability in facing the challenges of the ongoing environmental changes.

Modeling Coastal Hypoxia - Numerical Simulations of Patterns, Controls and Effects of Dissolved Oxygen Dynamics (Paperback,... Modeling Coastal Hypoxia - Numerical Simulations of Patterns, Controls and Effects of Dissolved Oxygen Dynamics (Paperback, Softcover reprint of the original 1st ed. 2017)
Dubravko Justic, Kenneth A Rose, Robert D. Hetland, Katja Fennel
R5,864 Discovery Miles 58 640 Ships in 18 - 22 working days

This book provides a snapshot of representative modeling analyses of coastal hypoxia and its effects. Hypoxia refers to conditions in the water column where dissolved oxygen falls below levels that can support most metazoan marine life (i.e., 2 mg O2 l-1). The number of hypoxic zones has been increasing at an exponential rate since the 1960s; there are currently more than 600 documented hypoxic zones in the estuarine and coastal waters worldwide. Hypoxia develops as a synergistic product of many physical and biological factors that affect the balance of dissolved oxygen in seawater, including temperature, solar radiation, wind, freshwater discharge, nutrient supply, and the production and decay of organic matter. A number of modeling approaches have been increasingly used in hypoxia research, along with the more traditional observational and experimental studies. Modeling is necessary because of rapidly changing coastal circulation and stratification patterns that affect hypoxia, the large spatial extent over which hypoxia develops, and limitations on our capabilities to directly measure hypoxia over large spatial and temporal scales. This book consists of 15 chapters that are broadly organized around three main topics: (1) Modeling of the physical controls on hypoxia, (2) Modeling of biogeochemical controls and feedbacks, and, (3) Modeling of the ecological effects of hypoxia. The final chapter is a synthesis chapter that draws generalities from the earlier chapters, highlights strengths and weaknesses of the current state-of-the-art modeling, and offers recommendations on future directions.

Tropical Fish Otoliths: Information for Assessment, Management and Ecology (Paperback, 2009 ed.): Bridget S Green, Bruce D.... Tropical Fish Otoliths: Information for Assessment, Management and Ecology (Paperback, 2009 ed.)
Bridget S Green, Bruce D. Mapstone, Gary Carlos, Gavin A. Begg
R4,902 R4,475 Discovery Miles 44 750 Save R427 (9%) Ships in 9 - 17 working days

Techniques and theory for processing otoliths from tropical marine fish have developed only recently due to an historic misconception that these organisms could not be aged. Otoliths are the most commonly used structures from which daily, seasonal or annual records of a fish's environmental history are inferred, and are also used as indicators of migration patterns, home range, spatial distribution, stock structure and life history events. A large proportion of projects undertaken on tropical marine organisms involve removal and processing of calcified structures such as otoliths, statoliths or vertebrae to retrieve biological, biochemical or genetic information. Current techniques and principles have evolved rapidly and are under constant modification and these differ among laboratories, and more particularly among species and within life history stages.

Tropical fish otoliths: Information for assessment, management and ecology is a comprehensive description of the current status of knowledge about otoliths in the tropics. This book has contributions from leading experts in the field, encompassing a tropical perspective on daily and annual ageing in fish and invertebrates, microchemistry, interpreting otolith microstructure and using it to back-calculate life history events, and includes a treatise on the significance of validating periodicity in otoliths.

Coral Reefs of the Eastern Tropical Pacific - Persistence and Loss in a Dynamic Environment (Paperback, Softcover reprint of... Coral Reefs of the Eastern Tropical Pacific - Persistence and Loss in a Dynamic Environment (Paperback, Softcover reprint of the original 1st ed. 2017)
Peter W. Glynn, Derek P. Manzello, Ian C. Enochs
R6,047 Discovery Miles 60 470 Ships in 18 - 22 working days

This book documents and examines the state of health of coral reefs in the eastern tropical Pacific region. It touches on the occurrence of coral reefs in the waters of surrounding countries, and it explores their biogeography, biodiversity and condition relative to the El Nino southern oscillation and human impacts. Additionally contained within is a field that presents information on many of the species presented in the preceding chapters.

Exploring Studbooks for Wildlife Management and Conservation (Paperback, Softcover reprint of the original 1st ed. 2016):... Exploring Studbooks for Wildlife Management and Conservation (Paperback, Softcover reprint of the original 1st ed. 2016)
F.P.G. Princee
R4,695 Discovery Miles 46 950 Ships in 18 - 22 working days

Many endangered species of wild animals are managed in captivity through studbooks. In this book these data-rich resources are mined in innovative, integrated and statistically tested ways to maximise information gain for conservation practice - whether for captive or released/reintroduced or managed wild populations. This book is thus an important tool for all species managers, and for students and researchers in small population biology and wildlife conservation. The book's studbook analyses are grouped in three interrelated sections: natural history, demography and genetics. Statistical tests to determine the significance of results or to compare results between subgroups are undertaken throughout. Real studbooks of a variety of species, e.g. cranes, wolverines, blesbok, illustrate the practical applications and interpretations of the analyses and statistics. The "natural history" section presents analyses to determine baseline species information such as litter size, inter-birth interval, longevity and seasonality. "Demography" covers census(-style) analyses, age-class based life tables, comparative survival analyses and population projections. Solutions for dealing with small sample sizes are included.Inbreeding depression and unconscious selection form the main focus of the "genetics" section. Survival and life table analyses are used to assess inbreeding effects. Quantitative genetics methods are applied to natural history traits as a tool to monitor genetic variation. A fourth section on "conservation" shows how data from captive populations can be used where natural history data from wild populations are missing. A real example uses studbook data to inform Population Viability Analysis. The final section deals with issues related to incomplete and missing data and statistical topics. The purpose-written open-source software programs "Population Management Library (PML)" and "studbookR" used for analyses in the book, are available at www.princee.com.

Feeds for the Aquaculture Sector - Current Situation and Alternative Sources (Paperback, 1st ed. 2018): Laura Gasco, Francesco... Feeds for the Aquaculture Sector - Current Situation and Alternative Sources (Paperback, 1st ed. 2018)
Laura Gasco, Francesco Gai, Giulia Maricchiolo, Lucrezia Genovese, Sergio Ragonese, …
R1,408 Discovery Miles 14 080 Ships in 18 - 22 working days

This Brief discusses potential alternative sources for feeds in aquaculture fish diet, and explains that the future of aquaculture's development is dependent on the costs of fishmeal and fish oil. Considering that the increasing costs of traditional feeds constrain this development, research is looking into alternatives, which can ensure adequate nutrition for animals' growth. This work reviews the use of alternative plant, microbial and insect protein sources, evaluating in particular their impact on growth, nutrient digestibility, fillet quality traits and sensorial perception in the most important farmed marine and freshwater fish species. The Brief specifically summarizes the pros and cons of plant oils from oilseeds, which can on the one hand be a sustainable substitute for fish oil, but which are on the other hand less rich in omega-3 long-chain polyunsaturated fatty acids. The feeding might therefore result in an undesired reduced nutritional value of the flesh of farmed fish. The authors also explore the possible use of fishery discards as potential aquaculture feed source. Since the landing of by-catch will with the new Common Fisheries Policy (CFP) become obligatory (instead of simply returning it to the sea, often dead), suitable uses of what must not be used for human consumption can be investigated. The authors give an outlook whether this might become a sensible alternative to improve the management of discards and create more sustainable fisheries. The Brief also addresses the issues of additives to aquafeeds, such as vitamins, minerals, and antioxidants, but also immunostimulants and enzymes. The authors discuss which effects these additives may have on fish growth, welfare, reproduction and health status in aquacultures.

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