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

The Myth of Wild Africa - Conservation Without Illusion (Paperback, New Ed): Jonathan S. Adams, Thomas O. McShane The Myth of Wild Africa - Conservation Without Illusion (Paperback, New Ed)
Jonathan S. Adams, Thomas O. McShane
R704 R642 Discovery Miles 6 420 Save R62 (9%) Ships in 10 - 15 working days

"The vital position of Africans in effective conservation has not been well described for the Western public, and "The Myth of Wild Africa takes an important step in redressing this lack of understanding. For anyone interested in the realities of conservation, it is a book well worth reading."--Dr. Amy Vedder, Biodiversity Program Coordinator, Wildlife Conservation Society

"A thoughtful and important examination of . . . the fatal fallacies of old-style conservation. The relationship between wildlife and people in Africa is as old as our species itself. The future of both must be taken into account together. Required reading for anyone who has ever cared about one or the other."--Thomas E. Lovejoy, Assistant Secretary for External Affairs, Smithsonian Institution

"I've never read any single other volume that has had as much impact on the problems, politics, and policies--and possible solution--of conservation in Africa."--Gary C. Clarke, Director Emeritus, Topeka, Kansas Zoological Park

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.

Satellite Remote Sensing for Conservation Action - Case Studies from Aquatic and Terrestrial Ecosystems (Hardcover): Allison K.... Satellite Remote Sensing for Conservation Action - Case Studies from Aquatic and Terrestrial Ecosystems (Hardcover)
Allison K. Leidner, Graeme M. Buchanan
R2,291 Discovery Miles 22 910 Ships in 10 - 15 working days

Satellite remote sensing presents an amazing opportunity to inform biodiversity conservation by inexpensively gathering repeated monitoring information for vast areas of the Earth. However, these observations first need processing and interpretation if they are to inform conservation action. Through a series of case studies, this book presents detailed examples of the application of satellite remote sensing, covering both aquatic and terrestrial ecosystems, to conservation. The authors describe how collaboration between the remote sensing and conservation communities makes satellite data functional for operational conservation, and provide concrete examples of the lessons learned in addition to the scientific details. The editors, one at NASA and the other at a conservation NGO, have brought together leading researchers in conservation remote sensing to share their experiences from project development through to application, and emphasise the human side of these projects.

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.

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.

Rewilding (Hardcover): Nathalie Pettorelli, Sarah M Durant, Johan T. du Toit Rewilding (Hardcover)
Nathalie Pettorelli, Sarah M Durant, Johan T. du Toit
R3,266 Discovery Miles 32 660 Ships in 10 - 15 working days

Through a global and interdisciplinary lens, this book discusses, analyzes and summarizes the novel conservation approach of rewilding. The volume introduces key rewilding definitions and initiatives, highlighting their similarities and differences. It reviews matches and mismatches between the current state of ecological knowledge and the stated aims of rewilding projects, and discusses the role of human action in rewilding initiatives. Collating current scholarship, the book also considers the merits and dangers of rewilding approaches, as well as the economic and socio-political realities of using rewilding as a conservation tool. Its interdisciplinary nature will appeal to a broad range of readers, from primary ecologists and conservation biologists to land managers, policy makers and conservation practitioners in NGOs and government departments. Written for a scientifically literate readership of academics, researchers, students, and managers, the book also acts as a key resource for advanced undergraduate and graduate courses.

Birdsong in a Time of Silence (Paperback): Steven Lovatt Birdsong in a Time of Silence (Paperback)
Steven Lovatt
R308 R277 Discovery Miles 2 770 Save R31 (10%) Ships in 9 - 17 working days

A lyrical celebration of birdsong, and the rekindling of a deep passion for nature. 'At this time of year, blackbirds never simply fly: instead, like reluctantly retired officers, they're always "on manoeuvres", and it's easy to see from their constant agitation that for them every flower bed is a bunker, every shed a redoubt and every hedge-bottom a potential place of ambush' As the world went silent in lockdown, something else happened; for the first time, many of us started becoming more aware of the spring sounds of the birds around us. Birdsong in a Time of Silence is a lyrical, uplifting reflection on these sounds and what they mean to us. From a portrait of the blackbird - most prominent and articulate of the early spring singers - to explorations of how birds sing, the science behind their choice of song and nest-sites, and the varied meanings that people have brought to and taken from birdsong, this book ultimately shows that natural history and human history cannot be separated. It is the story of a collective reawakening brought on by the strangest of springs.

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.

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.'

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.

At the Feet of Living Things - Twenty-Five Years of Wildlife Research and Conservation in India (Paperback): Aparajita Datta,... At the Feet of Living Things - Twenty-Five Years of Wildlife Research and Conservation in India (Paperback)
Aparajita Datta, Rohan Arthur, T.R. Shankar Raman
R510 Discovery Miles 5 100 Ships in 9 - 17 working days
Bringing Back the Beaver - The Story of One Man's Quest to Rewild Britain's Waterways (Paperback): Derek Gow Bringing Back the Beaver - The Story of One Man's Quest to Rewild Britain's Waterways (Paperback)
Derek Gow; Foreword by Isabella Tree
R339 R315 Discovery Miles 3 150 Save R24 (7%) Ships in 9 - 17 working days

'Gow reinvents what it means to be a guardian of the countryside.'-Guardian 'This authentic, impassioned manifesto-cum-memoir will hopefully have a major impact on what is likely to be a long-running controversy.'-The Spectator 'Gow has a fire in his belly. We need more like him.'-BBC Wildlife Magazine A Waterstones Best Nature Writing Book of 2020 'Bringing Back the Beaver is a hilarious, eccentric and magnificent account of a struggle . . . to reintroduce a species crucial to the health of our ecosystems.'-George Monbiot Bringing Back the Beaver is farmer-turned-ecologist Derek Gow's inspirational and often riotously funny first-hand account of how the movement to rewild beavers into the British landscape became the single most dramatic and subversive nature conservation act of the modern era. Since the early 1990s - in the face of outright opposition from government, landowning elites and even some conservation professionals - Gow has imported, quarantined and assisted the reestablishment of beavers in waterways across England and Scotland. With a foreword by bestselling author of Wilding, Isabella Tree, Bringing Back the Beaver makes a passionate case as to why the return of one of nature's great problem solvers will be critical as part of a sustainable fix for the UK's growing flooding problems, whilst ensuring the creation of essential landscapes that enable the broadest spectrum of Britain's wildlife to thrive. 'It is wonderful to see that beavers are now officially back on the list of native species, having been absent for so long . . . far too long!'-Dame Judi Dench

Plants & Us - How they shape human history and society (Paperback): Dr John Akeroyd, Donough O'Brien, Liz Cowley Plants & Us - How they shape human history and society (Paperback)
Dr John Akeroyd, Donough O'Brien, Liz Cowley; Foreword by Sir Tim Smit
R618 Discovery Miles 6 180 Ships in 9 - 17 working days

A completely new look at plants - not only in food, drink and commerce, and how they have created civilisation, trade and empires, but also in love, in war, in crime, in horror and delight, in music, poetry and prose, and on the screen. Not just another gardening or plant book, this is a complete picture of how plants affect people, for better or worse, now, in the past and in the future with illuminating and startling facts about their ubiquitous presence in human affairs - through life, death, illness, happiness, murder, despair, desperation, love, hate, loss, and far more. From Presidents to pop stars, from scientists to slavers, royals to religious leaders, chefs to charlatans, pioneers to politicians, artists to actors, Plants & Us is a unique overview of plants, wild and cultivated, their vital importance and the threats they face. Above all, how they affect all our lives in stories that will often surprise the 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.

Concise Guide to the Moths of Great Britain and Ireland: Second edition (Spiral bound): Martin Townsend, Paul Waring Concise Guide to the Moths of Great Britain and Ireland: Second edition (Spiral bound)
Martin Townsend, Paul Waring; Illustrated by Richard Lewington
R518 Discovery Miles 5 180 Ships in 10 - 15 working days

'A remarkable field guide ... one of those books that come along every now and then and cause a revolution.' Michael McCarthy Independent This concise guide is a companion to the main Field Guide to the Moths of Great Britain and Ireland by the same expert authors, but is in a condensed form with artwork opposite the species descriptions and lay-flat binding for ease of use in the field. It includes brief but comprehensive field descriptions of all the macro-moths in Great Britain, Ireland, the Isle of Man and the Channel Islands, and this second edition has been thoroughly revised and updated to reflect the latest advances in taxonomy. Featuring more than 1,700 superbly detailed colour artworks and covering nearly 900 species, this portable guide is an essential addition to every moth-lover's field kit.

Humans and Lions - Conflict, Conservation and Coexistence (Paperback): Keith Somerville Humans and Lions - Conflict, Conservation and Coexistence (Paperback)
Keith Somerville
R1,352 Discovery Miles 13 520 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.

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.

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.

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.

The Animal Atlas - A Pictorial Guide to the World's Wildlife (Hardcover): Dk The Animal Atlas - A Pictorial Guide to the World's Wildlife (Hardcover)
Dk; Illustrated by Kenneth Lilly 1
R380 R351 Discovery Miles 3 510 Save R29 (8%) Ships in 5 - 10 working days

Explore the animal kingdom with this pictorial atlas of the world's wildlife.

Where do animals build their homes? How do they survive in very hot and cold climates? Why are so many species endangered? Discover the answers to all these questions and many more in The Animal Atlas. This lavishly illustrated nature book takes children on a tour, continent by continent, to meet the animals of the world. Within each section, the book travels through different biomes, such as forests, deserts, and lakes; and specific regions, from the Everglades to the Galapagos, Himalayas, and Great Barrier Reef.

The Animal Atlas is packed with beautiful, life-like illustrations of mammals, birds, reptiles, amphibians, and insects that live all around the world, from the Amazon to Antarctica. Each species is carefully hand-drawn to show details of fur, feathers, or scales, while accompanying captions reveal fascinating facts about the animal's behaviour.

Maps, along with icons to represent each animal, show precisely where the animals are found. For example, Australia's iconic koala can be tracked down to the east coast of the country.

The book starts with an introduction to animal groups and habitats, and finishes with endangered species and a gallery of amazing, record-breaking animals. First published in 1992, this atlas has been updated for the 2020 edition and is a beautiful gift for a new generation of zoologists.

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