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

Wildlife Tourism Futures - Encounters with Wild, Captive and Artificial Animals (Paperback): Giovanna Bertella Wildlife Tourism Futures - Encounters with Wild, Captive and Artificial Animals (Paperback)
Giovanna Bertella
R2,026 R914 Discovery Miles 9 140 Save R1,112 (55%) Ships in 10 - 15 working days

This book presents a series of possible future scenarios in wildlife and animal tourism by combining critical thinking and imagination to stimulate reflection and ways forward. The future of wildlife tourism faces uncertainties that revolve around many factors, including climate change, mass wildlife extinction, human population growth, deforestation, sustainability and ethical assumptions. For wildlife tourism to meet these challenges, new ways of thinking are necessary. The chapters in this volume focus on future wildlife tourism development and management; the experiential value, educational components and ethical relevance of tourism-animal encounters; and the technology applied to wildlife tourism. They offer critically-imagined futures in order to encourage readers to reflect on the possibility of shaping a better future. The book will appeal to researchers, students and practitioners in wildlife tourism, environmental studies, sustainability and conservation.

Wildlife Tourism Futures - Encounters with Wild, Captive and Artificial Animals (Hardcover): Giovanna Bertella Wildlife Tourism Futures - Encounters with Wild, Captive and Artificial Animals (Hardcover)
Giovanna Bertella
R6,039 R3,015 Discovery Miles 30 150 Save R3,024 (50%) Ships in 10 - 15 working days

This book presents a series of possible future scenarios in wildlife and animal tourism by combining critical thinking and imagination to stimulate reflection and ways forward. The future of wildlife tourism faces uncertainties that revolve around many factors, including climate change, mass wildlife extinction, human population growth, deforestation, sustainability and ethical assumptions. For wildlife tourism to meet these challenges, new ways of thinking are necessary. The chapters in this volume focus on future wildlife tourism development and management; the experiential value, educational components and ethical relevance of tourism-animal encounters; and the technology applied to wildlife tourism. They offer critically-imagined futures in order to encourage readers to reflect on the possibility of shaping a better future. The book will appeal to researchers, students and practitioners in wildlife tourism, environmental studies, sustainability and conservation.

Pollinators and Pollination - Nature and Society (Paperback): Jeff Ollerton Pollinators and Pollination - Nature and Society (Paperback)
Jeff Ollerton
R849 Discovery Miles 8 490 Ships in 10 - 15 working days

A unique and personal insight into the ecology and evolution of pollinators, their relationships with flowers, and their conservation in a rapidly changing world. The pollination of flowers by insects, birds and other animals is a fundamentally important ecological function that supports both the natural world and human society. Without pollinators to facilitate the sexual reproduction of plants, the world would be a biologically poorer place in which to live, there would be an impact on food security, and human health would suffer. Written by one of the world's leading pollination ecologists, this book provides an introduction to what pollinators are, how their interactions with flowers have evolved, and the fundamental ecology of these relationships. It explores the pollination of wild and agricultural plants in a variety of habitats and contexts, including urban, rural and agricultural environments. The author also provides practical advice on how individuals and organisations can study, and support, pollinators. As well as covering the natural history of pollinators and flowers, the author discusses their cultural importance, and the ways in which pollinator conservation has been portrayed from a political perspective. The book draws on field work experiences in South America, Africa, Australia, the Canary Islands and the UK. For over 30 years the author has spent his career researching how plants and pollinators evolve relationships, how these interactions function ecologically, their importance for society, and how we can conserve them in a rapidly changing world. This book offers a unique and personal insight into the science of pollinators and pollination, aimed at anyone who is interested in understanding these fascinating and crucial ecological interactions.

Birds of Passage - Hunting and Conservation in Malta (Hardcover): Mark-Anthony Falzon Birds of Passage - Hunting and Conservation in Malta (Hardcover)
Mark-Anthony Falzon
R2,835 Discovery Miles 28 350 Ships in 10 - 15 working days

Bird migration between Europe and Africa is a fraught journey, particularly in the Mediterranean, where migratory birds are shot and trapped in large numbers. In Malta, thousands of hunters share a shrinking countryside. They also rub shoulders with a strong bird-protection and conservation lobby. Drawing on years of ethnographic fieldwork, this book traces the complex interactions between hunters, birds and the landscapes they inhabit, as well as the dynamics and politics of bird conservation. Birds of Passage looks at the practice and meaning of hunting in a specific context, and raises broader questions about human-wildlife interactions and the uncertain outcomes of conservation.

The Conservation and Biogeography of Amphibians in the Caribbean (Hardcover, Volume 9, Part 5): Neftali Rios-Lopez, Harold... The Conservation and Biogeography of Amphibians in the Caribbean (Hardcover, Volume 9, Part 5)
Neftali Rios-Lopez, Harold Heatwole
R3,293 Discovery Miles 32 930 Ships in 10 - 15 working days

An expansive and detailed review of the biology of Caribbean amphibians, considering their threats, conservation and outlook in a changing world. Amphibians are the group of vertebrates undergoing the fastest rate of extinction; it is urgent that we understand the causes of this and find means of protecting them. This landmark illustrated volume brings together the leading experts in the field. As well as offering an overview of the region as a whole, individual chapters are devoted to each island or island-group and the measures used to protect their amphibians through legislation or nature reserves. The biological background of insular biogeography, including its methods, analysis and results, is reviewed and applied specifically to the problems of Caribbean amphibians - this includes a re-examination of patterns and general ideas about the status of amphibians in the Anthropocene. The Conservation and Biogeography of Amphibians in the Caribbean offers an important baseline against which future amphibian conservation can be measured in the face of climate change, rising sea level and a burgeoning human population. Covers over 300 species.

Species Conservation in Managed Habitats - The Myth of a Pristine Natur (Hardcover): W. Kunz Species Conservation in Managed Habitats - The Myth of a Pristine Natur (Hardcover)
W. Kunz
R2,132 Discovery Miles 21 320 Ships in 18 - 22 working days

Written by an author with longstanding experience in the ecology of insects and birds and with a stellar academic record in molecular life sciences, this is a welcome challenge to the widely held beliefs in conventional environmental policies. Werner Kunz convincingly explains why maintaining high biodiversity in Europe depends heavily on the existence of open space and sparse ground vegetation that is neither used for intensive modern agriculture, nor eliminated by reforestation. He questions the commonly propagated opinion that nature conservation is equivalent to species protection - and shows that technical habitat design can rescue endangered species. A must-have for environmental agencies, policy makers, ecologists and all who are witnessing the current loss of species in Central Europe.

Jackals, Golden Wolves, and Honey Badgers - Cunning, Courage, and Conflict with Humans (Hardcover): Keith Somerville Jackals, Golden Wolves, and Honey Badgers - Cunning, Courage, and Conflict with Humans (Hardcover)
Keith Somerville
R4,081 Discovery Miles 40 810 Ships in 10 - 15 working days

This book explores the fascinating and complex lives of the honey badger, the African jackals (black-backed and side-striped), African golden wolves, and Eurasian golden jackals. In recent years, interest in these creatures has grown exponentially, through wildlife documentaries and media clips showing the aggressive, fearless, and tenacious behaviour of the honey badger, with jackals often presented in a supporting role. Written by renowned journalist and educator Keith Somerville, this accessible volume includes historical narratives, folklore, and contemporary accounts of human-wildlife relationships and conflicts. It traces the evolution of the species; their foraging and diet; the development of their relationships with humans; and their commensal, kleptocratic, and symbiotic relationships with other carnivores, raptors and birds. It also charts the recent expansion in European jackal numbers and ranges, now including as far west as the Netherlands and as far north as Finland. Blending historical observations by non-scientists, colonial officials, administrators, and early conservationists with contemporary scientific accounts, it presents a new multidisciplinary approach that will interest researchers, scientists, and students in wildlife conservation, human-wildlife relations, zoology, biology, and environmental science.

Platypus Matters - The Extraordinary Story of Australian Mammals (Paperback): Jack Ashby Platypus Matters - The Extraordinary Story of Australian Mammals (Paperback)
Jack Ashby
R290 R264 Discovery Miles 2 640 Save R26 (9%) Ships in 9 - 17 working days

Winner of the Whitley Award for Best Natural History Book 2022 A compelling, funny, first-hand account of Australia's wonderfully unique mammals and how our perceptions impact their future. Think of a platypus: they lay eggs (that hatch into so-called platypups), they produce milk without nipples and venom without fangs and they can detect electricity. Or a wombat: their teeth never stop growing, they poo cubes and they defend themselves with reinforced rears. Platypuses, possums, wombats, echidnas, devils, kangaroos, quolls, dibblers, dunnarts, kowaris: Australia has some truly astonishing mammals with incredible, unfamiliar features. But how does the world regard these creatures? And what does that mean for their conservation? In Platypus Matters, naturalist Jack Ashby shares his love for these often-misunderstood animals. Informed by his own experiences meeting living marsupials and egg-laying mammals on fieldwork in Tasmania and mainland Australia, as well as his work with thousands of zoological specimens collected for museums over the last 200-plus years, Ashby's tale not only explains the extraordinary lives of these animals, but the historical mysteries surrounding them and the myths that persist (especially about the platypus). He also reveals the toll these myths can take. Ashby makes it clear that calling these animals ‘weird’ or ‘primitive’ – or incorrectly implying that Australia is an ‘evolutionary backwater’ – a perception that can be traced back to the country's colonial history – has undermined conservation: Australia now has the worst mammal extinction rate of anywhere on Earth. Important, timely and written with humour and wisdom by a scientist and self-described platypus nerd, this celebration of Australian wildlife will open eyes and change minds about how we contemplate and interact with the natural world – everywhere.

The Chimpanzees of Rubondo Island - Apes Set Free (Hardcover): Josephine Nadezda Msindai, Volker Sommer The Chimpanzees of Rubondo Island - Apes Set Free (Hardcover)
Josephine Nadezda Msindai, Volker Sommer
R4,077 Discovery Miles 40 770 Ships in 10 - 15 working days

How did a random batch of chimpanzees come to populate a small island in Tanzania where apes had never lived before? Combining information gathered from fieldwork, laboratory and archival research, this book tells the unique story of chimpanzee babies taken from their forest homes in West-Central Africa and sold to European zoos and circuses, to then be shipped to Lake Victoria and set free on Rubondo Island. These founder animals learnt what to eat, how to build nests, to breed and raise young - ultimately forming a chimpanzee-typical fission-fusion society that today is thriving. The authors compare the ecology, behaviour and genetics of the Rubondo population with communities of wild chimpanzees, providing exciting insights into how our closest relatives adjust to changing environments. At the same time, a reconstruction of the historical context of the Rubondo experiment reflects on its chequered colonial heritage, and the introduction is viewed against current threats to the survival of apes in their natural habitats. The book will be of interest to scholars and professionals working in primatology, animal behaviour, conservation biology and postcolonial studies.

North Country - An anthology of landscape and nature (Hardcover): Karen Lloyd North Country - An anthology of landscape and nature (Hardcover)
Karen Lloyd
R358 Discovery Miles 3 580 Ships in 10 - 15 working days

"Curlews give their liquid, burbling call, a call of pure happiness, the music of the fells." Ella Pontefract, 1936, Wensleydale The North of England abounds with beauty, from unspoiled beaches in Northumberland to the dramatic Lakeland Fells, for so long celebrated by writers and artists. Wide estuaries, winding rivers, sheer cliffs, rushing waterfalls, ancient woodland, limestone pavements, and miles of hedgerows and drystone walls sustainably built and rebuilt over centuries - all form part of its rich heritage. But these are, too, contested and depleted landscapes. Today the curlew's call is isolated, and many other species are in decline. Industry, urban sprawl and climate chaos threaten our environment on a previously unimagined scale. And while stereotypes persist - of dark satanic mills or "bleak" moorland - the imperative of conservation is all too often overlooked for short-term economic interests. This essential volume reminds us how and why Northern people have risen to the challenge of defending their open spaces, demanding action on pollution and habitat loss. Contemporary writers including Sarah Hall, Lee Schofield, Benjamin Myers and Lemn Sissay take their place alongside those who wrote in previous centuries. Together, the voices in this one-of-a-kind anthology testify that North Country is a place apart.

Human - Wildlife Conflicts in Europe - Fisheries and Fish-eating Vertebrates as a Model Case (Hardcover, 2012): Reinhard A.... Human - Wildlife Conflicts in Europe - Fisheries and Fish-eating Vertebrates as a Model Case (Hardcover, 2012)
Reinhard A. Klenke, Irene Ring, Andreas Kranz, Niels Jepsen, Felix Rauschmayer, …
R5,083 Discovery Miles 50 830 Ships in 10 - 15 working days

This book is about conflicts between different stakeholder groups triggered by protected species that compete with humans for natural resources. It presents key ecological features of typical conflict species and mitigation strategies including technical mitigation and the design of participatory decision strategies involving relevant stakeholders. The book provides a European perspective, but also develops a global framework for the development of action plans.

Bat Roosts in Rock - A Guide to Identification and Assessment for Climbers, Cavers & Ecology Professionals (Paperback): Bat... Bat Roosts in Rock - A Guide to Identification and Assessment for Climbers, Cavers & Ecology Professionals (Paperback)
Bat Rock Habitat Key
R1,315 Discovery Miles 13 150 Ships in 10 - 15 working days

This guide provides descriptions of when the bat species resident in Britain and Ireland use natural and human-made rock habitats, how they use them, and the environments each species occupies therein. For the first time it brings together findings from historical scientific investigations, useful photographic accounts and open-access biological records, along with a rich seam of new data – all in a practical and user-friendly structure. The book encompasses: ~ Descriptions of the features that a climber, caver or professional ecologist might encounter on and in rock habitats where bats roost. ~ Recording criteria for both the physical and environmental attributes of different features and situations. ~ Identification of suitability thresholds against which the recorded information can be compared to assess the likelihood that a specific feature might be exploited by a particular bat species. ~ Suggestions for how to avoid mistakes and difficulties when performing a survey. The intention is that using this book will help generate standardised biological records which can feed into the fully accessible online database at www.batrockhabitatkey.co.uk. These data will be analysed to search for patterns that can increase the confidence in the suitability thresholds and help build roost features that deliver the environment each species really needs. As well as offering many new insights, this book allows the reader to participate in cutting-edge research.

Keepers of the Wolves (Paperback): Richard P. Thiel Keepers of the Wolves (Paperback)
Richard P. Thiel
R518 Discovery Miles 5 180 Ships in 18 - 22 working days

It was 1978, and gray wolves had been extinct in Wisconsin for twenty years. Still, there were rumors from the state's northwestern counties that they had returned. Dick Thiel, then a college student with a passion for wolves, was determined to find out. Keepers of the Wolves is his engrossing account of tracking and protecting the recovery of wolves in Wisconsin. Thiel conveys the wonder, frustrations, humor, and everyday hard work of field biologists, including the political and public relations pitfalls they regularly face. This new edition brings Thiel's story into the twenty-first century, recounting his work monitoring wolves as they spread to central Wisconsin, conflicts of wolves with landowners and recreationalists, changes in state and federal policies, the establishment of a state wolf-hunting season in 2012, and Thiel's forecast for the future of wolves in Wisconsin.

Antarctic Futures - Human Engagement with the Antarctic Environment (Hardcover, 2014 ed.): Tina Tin, Daniela Liggett, Patrick T... Antarctic Futures - Human Engagement with the Antarctic Environment (Hardcover, 2014 ed.)
Tina Tin, Daniela Liggett, Patrick T Maher, Machiel Lamers
R4,339 R3,538 Discovery Miles 35 380 Save R801 (18%) Ships in 10 - 15 working days

At the beginning of the 21st century, Antarctica is poised at the edge of a warmer and busier world. Leading Antarctic researchers examine the needs and challenges of Antarctic environmental management today and tomorrow. Through: (i) investigating the impacts of human activities on specific ecosystems and species, (ii) examining existing environmental management and monitoring practices in place in various regions and (iii) interrogating stakeholders, they address the following questions: What future will Business-As-Usual bring to the Antarctic environment? Will a Business-As-Usual future be compatible with the objectives set out under the Antarctic Treaty, especially its Protocol on Environmental Protection? What actions are necessary to bring about alternative futures for the next 50 years? This volume is an outcome of the International Polar Year (2007-2009) Oslo Science Conference (8-12, June, 2010).

Saltmarsh Conservation, Management and Restoration (Mixed media product, 2008 ed.): J Patrick Doody Saltmarsh Conservation, Management and Restoration (Mixed media product, 2008 ed.)
J Patrick Doody
R2,667 Discovery Miles 26 670 Ships in 18 - 22 working days

Coastal habitats provide the link between the land and the sea. They are dynamic, combine to form ecosystems of great complexity and provide significant areas for wildlife. Their landscapes are treasured by visitors, painters and musicians. They also provide locations for significant economic activity and are intimately bound up with fisheries, providing food and shelter for some species of commercially exploited fish stocks. The habitats themselves provide a buffer to tides and wave action, which may be particularly important in areas where relative sea level is rising and during storm periods. Managing these assets in the face of continuing pressure from human populations on a sustainable basis is a major task.

CD-ROM included
This volume includes a CD-ROM containing electronic versions in full colour of the colour figures which are printed in black-and-white in the book.

Invaded - The biological invasion of South Africa (Paperback): Leonie Joubert Invaded - The biological invasion of South Africa (Paperback)
Leonie Joubert
R430 R136 Discovery Miles 1 360 Save R294 (68%) Ships in 5 - 7 working days

Pollution doesn't make for easy sonnets or flowing, romantic narratives. And that's what this title is about - pollution. Not the everyday sort of pollution that we recognise so easily, the type which piles up into stinking heaps of litter or that clogs the sky with filthy smoke. No, this is a form of pollution which is so subtle and insidious that many people do not realise it is there. Invaded is about biological pollution, the kind that comes in dense hedges of lush greenery, blooming fields of heady petals or gracefully draped creepers. It may spread incognito on the wings of a bird, tug on the end of an angler's line or scurry unnoticed through the undergrowth. These pages explore plants and animals that have traversed the borders and boundaries of their natural habitats and made their way into South Africa over the past 300 years and more. Unhindered by the predators and diseases which once kept their populations in check, many have come to outnumber and out-compete the species they encounter in their adopted homes. Invaded provides an overview of the different species that have arrived in our country during the past three centuries, and the threats they pose (or have the potential to become). Ultimately, the book attempts to quantify how these species have changed systems, disrupted the natural environment and threatened the future of the country's many unique plants, animals and habitats.

Advances in Marine and Brackishwater Aquaculture (Hardcover, 2015 ed.): Santhanam Perumal, Thirunavukkarasu A R, Perumal... Advances in Marine and Brackishwater Aquaculture (Hardcover, 2015 ed.)
Santhanam Perumal, Thirunavukkarasu A R, Perumal Pachiappan
R4,811 Discovery Miles 48 110 Ships in 10 - 15 working days

This book compiles the latest findings in the field of marine and brackishwater aquaculture. It covers significant topics such as techniques of culture of live feeds (microalgae, rotifer, Artemia, marine copepod & polychaetes), while also highlighting vital themes like the culture and applications of free and marine sponge associated microbial probiotics, controlled breeding, seed production and culture of commercially important fin and shell fishes. Moreover, the book focuses on the breeding and culture of marine ornamental fishes, sea cucumber and sea urchin and discusses seaweeds culture, aqua feed formulation and nutrition, water quality management in hatchery and grow-out culture systems, fish disease diagnosis and health management and cryopreservation of fish gametes for sustainable aquaculture practices, all from a multidimensional perspective. The global fish production was 154 million tonnes in 2011 which more or less consisted of capture and culture fisheries (FAO, 2012). Roughly 80% of this is from inland-freshwater aquaculture and the remainder from capture fisheries in the marine and brackishwater sector. However, marine and brackishwater catches have recently begun to diminish due to overexploitation, climate change and pollution. The UNEP report affirmed that if the world remains on its current course of overfishing, by 2050, the ocean fish stock could become extinct or no longer commercially viable to exploit. In these circumstances, aquaculture is considered to be a promising sector to fulfill our future protein requirement. However, brackishwater and marine fish production now face serious challenges due to e.g. lack of quality fish seeds, feeds, poor water quality management and diseases. Fisheries and aquaculture sectors play a vital role as potential sources of nutritional security and food safety around the globe. Fish food is rich in protein, vitamins, phosphorous, calcium, zinc, selenium etc. In addition, fish contains omega-3 fatty acids, which help to prevent cardiovascular diseases. Fish food can also provide several health benefits to consumers. The omega 3 fatty acids found in fish can reduce the levels of LDL cholesterol (the "bad" cholesterol) and increase the HDL levels (the "good" cholesterol). Research conducted in Australia has proved that fish consumption can be used to cure hypertension and obesity. It is also reported that people who ate more fish were less prone to asthma and were able to breathe more easily. Omega 3 fish oil or fish consumption can help to prevent three of the most common forms of cancer: breast cancer, colon and prostate cancer. The omega 3 fatty acids present in fish or fish oil induce faster hair growth and prevent hair loss. Since most varieties of fish are rich in protein, eating fish helps to keep hair healthy. Furthermore, fish or fish oil helps in improving the condition of dry skin, giving it a healthy glow. It is useful in treating various skin problems such as eczema, psoriasis, itching, redness of skin, skin lesions and rashes. It is well known that eating fish improves vision and prevents Alzheimer's and type-2 diabetes, and can combat arthritis. Further, fish oil or fish is good for pregnant women, as the DHA present in it helps in the development of the baby's eyes and brain. It helps to avoid premature births, low birth weights and miscarriages. In addition, it is widely known that fish can be a good substitute for pulses in cereal-based diets for the poor. The global fish production was roughly 154 million tonnes in 2011 (FAO, 2012). It is estimated that by 2020 global fish requirements will be over 200 million tonnes; as such, innovative technological improvements are called for in order to improve the production and productivity in fisheries. In this context, this book provides valuable information for academics, scientists, researchers, government officials and farmers on innovative technological advances for sustainable fish production using aquaculture methods. The book identifies the main issues and trends in marine and brackishwater aquaculture from a global perspective in general and in the Indian context in particular. It includes 23 chapters written by prominent researchers from various institutes and universities across India, who address the latest aquaculture technologies with distinctive approaches to support academics, researchers and graduates in the fields of Fisheries, Aquaculture, Marine Science, Marine Biology, Marine Biotechnology, Zoology and Agricultural Sciences. Our thanks go to our contributors; we are confident that all readers will immensely benefit from their valued expertise in the field of marine and brackishwater aquaculture.

Invertebrate Conservation and Agricultural Ecosystems (Hardcover): T.R. New Invertebrate Conservation and Agricultural Ecosystems (Hardcover)
T.R. New
R3,916 Discovery Miles 39 160 Ships in 10 - 15 working days

Invertebrate Conservation and Agricultural Ecosystems explores the diverse interests of invertebrate conservation and agricultural production. It is both an introduction to invertebrate conservation biology for agriculturists and an introduction to crop protection for conservation biologists, demonstrating how these two disparate fields may draw on each other for greater collective benefit. It draws on recent literature to show how invertebrate conservation in highly altered landscapes may be promoted and enhanced. The book deals with problems of, and approaches to, invertebrate conservation in highly managed agricultural ecosystems, and how biodiversity may be promoted without compromising agricultural production. It draws attention to the importance of invertebrates in agricultural systems and their role in ecosystem functions.

The Welfare of Performing Animals - A Historical Perspective (Hardcover, 2015 ed.): David A H Wilson The Welfare of Performing Animals - A Historical Perspective (Hardcover, 2015 ed.)
David A H Wilson
R4,468 R3,397 Discovery Miles 33 970 Save R1,071 (24%) Ships in 10 - 15 working days

This timely book describes and analyses a neglected area of the history of concern for animal welfare, discussing the ends and means of the capture, transport, housing and training of performing animals, as well as the role of pressure groups, politics, the press and vested interests. It examines primary source material of considerable interdisciplinary interest, and addresses the influence of scientific and veterinary opinion and the effectiveness of proposals for supervisory legislation, noting the current international status and characteristics of present-day practice within the commercial sector. Animal performance has a long history, and at the beginning of the twentieth century this aspect of popular entertainment became the subject not just of a major public controversy but also of prolonged British parliamentary attention to animal welfare. Following an assessment of the use of trained animals in the more distant historical past, the book charts the emergence of criticism and analyses the arguments and evidence used by the opponents and proponents in Britain from the early twentieth century to the present, noting comparable events in the United States and elsewhere.

Remembering Bears (Hardcover): Margot Raggett Remembering Bears (Hardcover)
Margot Raggett
R1,452 Discovery Miles 14 520 Ships in 9 - 17 working days
Ecology of Atlantic Salmon and Brown Trout - Habitat as a template for life histories (Hardcover, Edition.): Bror Jonsson, Nina... Ecology of Atlantic Salmon and Brown Trout - Habitat as a template for life histories (Hardcover, Edition.)
Bror Jonsson, Nina Jonsson
R9,857 Discovery Miles 98 570 Ships in 10 - 15 working days

Destruction of habitat is the major cause for loss of biodiversity including variation in life history and habitat ecology. Each species and population adapts to its environment, adaptations visible in morphology, ecology, behaviour, physiology and genetics. Here, the authors present the population ecology of Atlantic salmon and brown trout and how it is influenced by the environment in terms of growth, migration, spawning and recruitment. Salmonids appeared as freshwater fish some 50 million years ago. Atlantic salmon and brown trout evolved in the Atlantic basin, Atlantic salmon in North America and Europe, brown trout in Europe, Northern Africa and Western Asia. The species live in small streams as well as large rivers, lakes, estuaries, coastal seas and oceans, with brown trout better adapted to small streams and less well adapted to feeding in the ocean than Atlantic salmon. Smolt and adult sizes and longevity are constrained by habitat conditions of populations spawning in small streams. Feeding, wintering and spawning opportunities influence migratory versus resident lifestyles, while the growth rate influences egg size and number, age at maturity, reproductive success and longevity. Further, early experiences influence later performance. For instance, juvenile behaviour influences adult homing, competition for spawning habitat, partner finding and predator avoidance.
The abundance of wild Atlantic salmon populations has declined in recent years; climate change and escaped farmed salmon are major threats. The climate influences through changes in temperature and flow, while escaped farmed salmon do so through ecological competition, interbreeding and the spreading of contagious diseases. The authors pinpoint essential problems and offer suggestions as to how they can be reduced. In this context, population enhancement, habitat restoration and management are also discussed. The text closes with a presentation of what the authors view as major scientific challenges in ecological research on these species."

Reindeer Husbandry and Global Environmental Change - Pastoralism in Fennoscandia (Hardcover): Tim Horstkotte, Oystein Holand,... Reindeer Husbandry and Global Environmental Change - Pastoralism in Fennoscandia (Hardcover)
Tim Horstkotte, Oystein Holand, Jouko Kumpula, Jon Moen
R4,509 Discovery Miles 45 090 Ships in 10 - 15 working days

This volume offers a holistic understanding of the environmental and societal challenges that affect reindeer husbandry in Fennoscandia today. Reindeer husbandry is a livelihood with a long traditional heritage and cultural importance. Like many other pastoral societies, reindeer herders are confronted with significant challenges. Covering Norway, Sweden and Finland - three countries with many differences and similarities - this volume examines how reindeer husbandry is affected by and responds to global environmental change and resource extraction in boreal and arctic social-ecological systems. Beginning with an historical overview of reindeer husbandry, the volume analyses the realities of the present from different perspectives and disciplines. Genetics, behavioural ecology of reindeer, other forms of land use, pastoralists' norms and knowledge, bio-economy and governance structures all set the stage for the complex internal and externally imposed dynamics within reindeer husbandry. In-depth analyses are devoted to particularly urgent challenges, such as land-use conflicts, climate change and predation, identified as having a high potential to shape the future pathways of the pastoral identity and productivity. These futures, with their risks and opportunities, are explored in the final section, offering a synthesis of the comparative approach between the three countries that runs as a recurring theme through the book. With its richness and depth, this volume contributes significantly to the understanding of the substantial impacts on pastoralist communities in northernmost Europe today, while highlighting viable pathways to maintaining reindeer husbandry for the future. This book will be of great interest to students and scholars of both the natural and social sciences who work on natural resource management, global environmental change, pastoralism, ecology, social-ecological systems, rangeland management and Indigenous studies. The Open Access version of this book, available at www.taylorfrancis.com, has been made available under a Creative Commons Attribution- Non Commercial- No Derivatives 4.0 license.

Rethinking Fisheries Governance - The Role of States and Meta-Governance (Hardcover, 1st ed. 2018): Hoang Viet Thang Rethinking Fisheries Governance - The Role of States and Meta-Governance (Hardcover, 1st ed. 2018)
Hoang Viet Thang
R3,278 Discovery Miles 32 780 Ships in 10 - 15 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.

Spatial Dynamics and Ecology of Large Ungulate Populations in Tropical Forests of India (Hardcover, 1st ed. 2021): N. Samba... Spatial Dynamics and Ecology of Large Ungulate Populations in Tropical Forests of India (Hardcover, 1st ed. 2021)
N. Samba Kumar, K. Ullas Karanth, James D. Nichols, Srinivas Vaidyanathan, Beth Gardner, …
R2,662 Discovery Miles 26 620 Ships in 18 - 22 working days

Large ungulates in tropical forests are among the most threatened taxa of mammals. Excessive hunting, degradation of and encroachments on their natural habitats by humans have contributed to drastic reductions in wild ungulate populations in recent decades. As such, reliable assessments of ungulate-habitat relationships and the spatial dynamics of their populations are urgently needed to provide a scientific basis for conservation efforts. However, such rigorous assessments are methodologically complex and logistically difficult, and consequently many commonly used ungulate population survey methods do not address key problems. As a result of such deficiencies, key parameters related to population distribution, abundance, habitat ecology and management of tropical forest ungulates remain poorly understood. This book addresses this critical knowledge gap by examining how population abundance patterns in five threatened species of large ungulates vary across space in the tropical forests of the Nagarahole-Bandipur reserves in southwestern India. It also explains the development and application of an innovative methodology - spatially explicit line transect sampling - based on an advanced hierarchical modelling under the Bayesian inferential framework, which overcomes common methodological deficiencies in current ungulate surveys. The methods and results presented provide valuable reference material for researchers and professionals involved in studying and managing wild ungulate populations around the globe.

Fisheries and Aquaculture - Volume 9 (Hardcover): Gustavo Lovrich, Martin Thiel Fisheries and Aquaculture - Volume 9 (Hardcover)
Gustavo Lovrich, Martin Thiel
R4,792 Discovery Miles 47 920 Ships in 10 - 15 working days

This is the ninth volume of ten in the The Natural History of the Crustacea Series. The chapters in this volume synthesize the diverse topics in fisheries and aquaculture. In the first part of the book, chapters explore worldwide crustacean fisheries. This section comes to a conclusion with two chapters on harvested crustaceans that are usually not within the focus of the mainstream fisheries research, possibly because they are caught by local fishing communities in small-scale operations and sold locally as subsistence activity. In the second part of the book, the authors explore the variety of cultured crustacean species, like shrimps, prawns, lobsters, and crabs. Chapters in the third part of the volume focus on important challenges and opportunities, including diseases and parasitism, the use of crustacean as bioindicators, and their role in biotechnology.

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