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.

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.

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.

Discover the world's ocean--from tides and currents to the creatures living in it to the impact it has on our lives, whether we know it or not--in this richly illustrated overview of the life force that defines and sustains our planet, written by world-renowned oceanographer Sylvia Earle. Everything you want to know about the ocean can be found inside these beautiful and dynamic pages. National Geographic Ocean unveils the power and significance of our planet's watery essence: the fundamental importance of the ocean in shaping Earth's climate and chemistry as well as its vital role in supporting a multitude of life-forms, including our own human race. World-renowned oceanographer and National Geographic Explorer in Residence Sylvia Earle--affectionately called "Her Deepness"--guides readers with her lyrical style and inspiring wisdom, describing the evolution, beauty, and impact of our ocean; the challenges it faces, such as climate change, plastic, and overfishing; and the myriad ways we can help protect it. This comprehensive reference explains the fundamental science of the ocean--from plate tectonics to seawater makeup, including a fascinating illustrated guide to marine life, from sponges, kelp, and zooplankton to whales, sharks, and sea turtles. More than 100 maps and diagrams, including seafloor and political maps of all Earth's seas and oceans, elucidate Dr. Earle's authoritative text. For seaside dwellers and landlubbers alike, this is a book you will turn to again and again to understand why, as Sylvia Earle says, "Everyone, everywhere is inextricably connected to and utterly dependent upon the existence of the sea." Dive deeper into ocean discovery with more National Geographic favorites: Into the Deep The Nature of Nature 100 Dives of a Lifetime Secrets of the Whales Pristine Seas Shark

Art about glaciers, queer relationships, political anxiety, and the meaning of Blackness in open space-Borealis is a shapeshifting logbook of Aisha Sabatini Sloan's experiences moving through the Alaskan outdoors. In Borealis, Aisha Sabatini Sloan observes shorelines, mountains, bald eagles, and Black fellow travelers while feeling menaced by the specter of nature writing. She considers the meaning of open spaces versus enclosed ones and maps out the web of queer relationships that connect her to this quaint Alaskan town. Triangulating the landscapes she moves through with glacial backdrops in the work of Black conceptual artists and writers, Sabatini Sloan complicates tropes of Alaska to suggest that the excitement, exploration, and possibility of myth-making can also be twinned by isolation, anxiety, and boredom. Borealis is the first book commissioned for the Spatial Species series, edited by Youmna Chlala and Ken Chen. The series investigates the ways we activate space through language. In the tradition of Georges Perec's An Attempt at Exhausting a Place in Paris, Spatial Species titles are pocket-sized editions, each keenly focused on place. Instead of tourist spots and public squares, we encounter unmarked, noncanonical spaces: edges, alleyways, diasporic traces. Such intimate journeying requires experiments in language and genre, moving travelogue, fiction, or memoir into something closer to eating, drinking, and dreaming.

The unexpected and fascinating interspecies relationship between humans and horseshoe crabs. Horseshoe crabs are considered both a prehistoric and indicator species. They have not changed in tens of millions of years and provide useful data to scientists who monitor the health of the environment. From the pharmaceutical industry to paleontologists to the fishing industry, the horseshoe crab has made vast, but largely unknown, contributions to human life and our shared ecosystem. Catch and Release examines how these intersections steer the trajectory of both species' lives, and futures. Based on interviews with conservationists, field biologists, ecologists, and paleontologists over three years of fieldwork on urban beaches, noted ethnographer Lisa Jean Moore shows how humans literally harvest the life out of the horseshoe crabs. We use them as markers for understanding geologic time, collect them for agricultural fertilizer, and eat them as delicacies, capture them as bait, then rescue them for conservation, and categorize them as endangered. The book details the biomedical bleeding of crabs; how they are caught, drained of 40% of their blood, and then released back into their habitat. The model of catch and release is essential. Horseshoe crabs cannot be bred in captivity and can only survive in their own ecosystems. Moore shows how horseshoe crabs are used as an exploitable resource, and are now considered a "vulnerable" species. An investigation of how humans approach animals that are essential for their survival, Catch and Release questions whether humans should have divine, moral, or ethical claims to any living being in their path.

`Any fool can destroy trees. They cannot run away … God has cared for these trees … but he cannot save them from fools – only Uncle Sam can do that.’ First published in 1901, Our National Parks is possibly the bestselling book of Muir’s wilderness-discovery titles and was certainly the most influential published in his lifetime, with a strong focus on the preservation of forest reserves. With a strong political tone and shrewd, subtle manoeuvring, Muir uses Our National Parks to persuade his readership of the necessity of nature and national parks for human recreation and more importantly for health and wellbeing, as well as the – in his mind – obvious need for preservation of wild ecosystems. Cannily he counterbalances this with the acknowledgement of the need for timber and irrigation systems, in order that his message is taken seriously; Muir’s passion is portrayed so vividly and flamboyantly that without his learned political and scientific reinforcement, he could be misconstrued as purely a radical and eccentric nonconformist. However, the two combined result in an engaging and convincing argument that these landscapes are our `natural home’, and `fountains of life’. As Muir expert Terry Gifford observes in the foreword, `Muir’s tone can shift in this book from seductive persuasion, to charming details of creatures, flora and landscapes, to scientific information, to trail guide, to religious uplift, to a final political speech of startling ferocity.’ John Muir’s strategic yet genuine and beautiful conservationist essays were a first at the time of publication, and are still highly applicable to our attitudes and lifestyles today in the twenty-first century.

'How glorious a greeting the sun gives the mountains! To behold this alone is worth the pains of any excursion a thousand times over.' John Muir is known internationally for his dedication to protecting the environment and for founding The Sierra Club in 1892. His first book, as Muir authority Terry Gifford writes in the foreword, 'became the bible of the fledgling Sierra Club, which is now a major national environmental activists' organisation with branches in every corner of America'. The Mountains of California not only details Muir's visits to the magnificent mountains along the Sierra Nevada Range, which he affectionately calls 'The Range of Light', but also the stunning glaciers, forests and landscapes that he encounters: 'Climbing higher, I saw for the first time the gradual dwarfing of the pines in compliance with climate ... patches of the dwarf vaccinium with its round flowers sprinkled in the grass like purple hail; while in every direction the landscape stretched sublimely away in fresh wildness: a manuscript written by the hand of nature alone.' Throughout the book, Muir's philosophy of nature's ability to soothe and amaze is evident. He heart-warmingly discusses at length how his encounters with animals, such as the Douglas squirrel, cheered him so. This is a truly beautiful read; Muir's writing, embedded with emotion, wit, and at times, humour, will never fail to speak to his reader. The enthusiasm contained within these pages is infectious, and as well as making a powerful read, Muir will inspire you, too, to 'come and see' the innumerable delights that nature can offer: 'The best words only hint at [California's] charms. Come to the mountains and see.'

The Story of my Boyhood and Youth is the affecting memoir of the now internationally renowned John Muir, a Scottish-American boy subject to a most unusual upbringing, his transition into adulthood, and the path that led him to petition for the concept of protected national parks. Born in East Lothian, Scotland in 1838, Muir was raised by a fanatically strict, religious father with his numerous brothers and sisters and loving mother. From an early age, a shy Muir showed fascination with the natural world, and at aged eleven, his father announced the family were to move to an American wilderness in Wisconsin - Muir had a new playground. His adolescence is spent labouring on the family's grassroots farm. Working seventeen-hour days, an exhausted yet inquisitive Muir desperately snatches moments to himself, yearning to explore the environment around him, secretly studying books on topics other than religion, and rising at 1 a.m. to pursue his hobby of inventing intricate time and energy-saving devices - much to his father's disapproval and everyone else's admiration. At age twenty-two, Muir takes it upon himself to apply to university, and does so without financial or moral support from his father. He makes his way to the University of Wisconsin-Madison to study chemistry and botany, and though never graduating with a degree, he is satisfied that he had learned all he wanted to there, before completing the rest of his nature education in 'the university of the wilderness'. The Story of my Boyhood and Youth includes a new foreword by Terry Gifford, and offers insight into the development of Muir's spiritual connection with the natural world, and suggests an explanation for his passion for freedom in the wilderness, a stark contrast to the forced rigidity of his early years.

With Britain's islands holding more than three-quarters of the Earth's stock of heather moorland, it is an extraordinary fact that it stands as one of the world's rarest habitats. A landscape beloved by millions, it's renowned for the tranquillity and solace it provides - however, this tranquillity is an illusion. Britain's moorlands have, in less than a decade, moved from a position of benign consensus to the epicentre of the bitterest conflict within UK conservation. This insightful book sets out to examine and expose the hidden issues surrounding UK moorland conservation, giving a voice to the many people who work and live there and who feel that what they have to say is often ignored, if it's even heard at all. The fate of our uplands is in our hands, and it is important that an alternative narrative, from the perspective of the practitioners who have cared for these places for generations, are considered. It may be that those with power chose to ignore these facts and sweep them away, but at least now they cannot say they didn't know.

'Many a beautiful plant cultivated to deformity, and arranged in strict geometrical beds, the whole pretty affair a laborious failure side by side with divine beauty.' A Thousand-Mile Walk to the Gulf is the second book in John Muir's Wilderness-Discovery series. It is within this work that we are really given strong clues toward Muir's future trailblazing movement for environmental conservation, in such comments as 'The universe would be incomplete without man; but it would also be incomplete without the smallest transmicroscopic creature that dwells beyond our conceitful eyes and knowledge.' Muir's walk from Indiana to Florida was conceived in order to explore and study further the flora and fauna across states. He undertakes this alone, a dangerous choice perhaps so soon after the civil war, as many characters along the way forewarn. Indeed, Muir is threatened by a robber, and we see a new side to the quiet, lowly gentleman we know as he springs into self-defence mode with lightning initiative and remarkable courage. This is not the only facet of Muir's personality that is uncovered throughout this journey. He makes reference to feeling 'dreadfully lonesome and poor', which is intriguing as his circumstances are self-sought: 'Stayed with lots of different people but preferred sleeping outside alone where possible'. He spends a substantial period of time struck down with malaria, which does not come as a surprise; he was covering many miles on an unsustainably meagre diet with thirst often quenched with swamp water or not at all. Join Muir in Kentucky forests, Cumberland mountains, Florida swamps and all the elegantly described trees, plants, creatures and rocks in-between. A Thousand-Mile Walk to the Gulf teaches us as much about Muir himself as it does the ecosystems in the wilderness across those 1,000 miles.

100 Plants to Save the Bees highlights the best species to attract and sustain honey bees, bumble bees, and other native bees and pollinators. Nectar rich and/or high value pollen plants will include varieties of native wildflowers, garden plants, native trees and shrubs, and native as well as non native bee pasture plants from alfalfa to vetch. Full colour photographs of the plant in bloom - many featuring bees busy at work - are accompanied by at a glance information including which pollinators the plant attracts and all the necessary planting data. Regional and seasonal planting guidelines ensure everyone can plant at the right time and in the right place to save their bees.

Embark on an action-packed, first-class tour and explore the homes of Earth's most awe-inspiring animals! This illustrated children's atlas brings the animal kingdom to life like never before through spectacular, specially commissioned 3D maps and artworks. A fact-filled adventure of a lifetime awaits, are you ready? Inside the pages of this visually stunning animal encyclopedia, you'll discover: - 3D maps show the habitats and geographic location of more than 100 incredible animals - Text on each spread providing relevant background information about each animal - Maps revealing the shrinking territories of some species to inform kids about endangered animals and how to protect them From African savanna elephants and Arctic wolves to giant pandas and polar bears, this educational book for kids shows you exactly where and how over 100 extraordinary animal species live. Detailed 3D maps and dynamic images give you a peek inside the habitat of each animal, as well as its geographic location. Filled with fun facts for kids revealing an astonishing amount of information about the behaviour of some of the most amazing animals. You'll discover where lions hunt their prey, which penguin lives closest to the South Pole, and where you might encounter the world's most deadly snakes. Perfect for home learning, this atlas book is great for children to dip into for school projects and is a fantastic addition to any family library. Complete the Series: If you enjoyed exploring the world's wildlife in What's Where in Earth: Animal Atlas, look out for more titles in this series from DK. It's perfect for children who are interested in animals, nature, ecology, geography and maps! From earthquakes to satellites, mummies to river monsters, discover our world as you've never seen it before in What's Where on Earth.

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.

What have we learnt about the Nile since the mid-1970s, the moment when Julian Rzoska decided that the time had come to publish a comprehensive volume about the biology, and the geological and cultural history of that great river? And what changes have meanwhile occurred in the basin? The human popu- tion has more than doubled, especially in Egypt, but also in East Africa. Locally, industrial development has taken place, and the Aswan High Dam was clearly not the last major infrastructure work that was carried out. More dams have been built, and some water diversions, like the Toshka lakes, have created new expanses of water in the middle of the Sahara desert. What are the effects of all this on the ec- ogy and economy of the Basin? That is what the present book sets out to explore, 33 years after the publi- tion of "The Nile: Biology of an Ancient River". Thirty-seven authors have taken up the challenge, and have written the "new" book. They come from 13 different countries, and 15 among them represent the largest Nilotic states (Egypt, Sudan, Ethiopia, Uganda, and Kenya). Julian Rzoska died in 1984, and most of the - authors of his book have now either disappeared or retired from research. Only Jack Talling and Samir Ghabbour were still available to participate again.

The proposed book focuses on one of the most important issues affecting humankind in this century - Peak Oil or the declining availability of abundant, cheap energy-and its effects on our industrialized economy and wildlife conservation. Energy will be one of the defining issues of the 21st Century directly affecting wildlife conservation wherever energy extraction is a primary economic activity and indirectly through deepening economic recessions. Since cheap, abundant energy has been at the core of our industrial society, and has resulted in the technological advancements we enjoy today, the peak in world oil extraction would potentially have major impacts on civilization unless we prepare well in advance. One potential economic solution covered in the book would be a Steady State Economy with a stable population and per capita consumption, particularly in such industrialized countries as the United States. Furthermore, the lack of cheap, abundant energy directly and indirectly affects conservation efforts by professional societies and federal and state agencies, and NGOs concerned with wildlife issues. We need to recognize these potential problems and prepare, as much as possible, for the consequences stemming from them.

This book provides both the conceptual basis and technological tools that are necessary to identify and solve problems related to biodiversity governance. The authors discuss intriguing evolutionary questions, which involve the sometimes surprising adaptive capacity of certain organisms to dwell in altered and/or changing environments that apparently lost most of their structure and functionality. Space and time heterogeneities are considered in order to understand the patterns of distribution and abundance of species and the various processes that mold them. The book also discusses at which level-from genes to the landscape, including individuals, populations, communities, and ecosystems-men should intervene in nature in order to prevent the loss of biodiversity.

This comprehensive book provides a unique overview of advances in the biology and ecology of marine protists. Nowadays marine protistology is a hot spot in science to disclose life phenomena using the latest techniques. Although many protistological textbooks deal with the cytology, genetics, ecology, and pathology of specific organisms, none keeps up with the quick pace of new discoveries on the diversity and dynamics of marine protists in general. The bookMarine Protists: Diversity and Dynamics gives an overview of current research on the phylogeny, cytology, genomics, biology, ecology, fisheries, applied sciences, geology and pathology of marine free-living and symbiotic protists. Poorly known but ecologically important protists such as labyrinthulids and apostome ciliates are also presented in detail. Special attention is paid to complex interactions between marine protists and other organisms including human beings. An understanding of the ecological roles of marine protists is essential for conservation of nature and human welfare. This book will be of great interest not only to scientists and students but also to a larger audience, to give a better understanding of protists' diverse roles in marine ecosystems.

This book reports significant progress of scientific research on horseshoe crabs, including aspects of evolution, genetics, ecology, population dynamics, general biology and physiology, within the recent 10 years. It also highlights the emerging issues related to world-wide conservation threats, status and needs. The contributions in this book represent part of an ongoing global effort to increase data and concept sharing to support basic research and advance conservation for horseshoe crabs.

Biological invasions by alien (non-native) species are widely recognized as a significant component of human-caused global environmental change and the second most important cause of biodiversity decline. Alien species threaten many European ecosystems and have serious environmental, economic and health impacts. The DAISIE (Delivering Alien Invasive Species Inventories for Europe) project has now brought together all available information on alien species in Europe (terrestrial, aquatic and marine) and from all taxa (fungi, plants, animals). Thus for the first time, an overview and assessment of biological invasions in the Pan-European region is finally possible. The Handbook of Alien Species in Europe summarises the major findings of this groundbreaking research and addresses the invasion trends, pathways, and both economic as well as ecological impact for eight major taxonomic groups. Approximately 11.000 alien species recorded in Europe are listed, and fact sheets for 100 of the most invasive alien species are included, each with a distribution map and colour illustration. The book is complemented by a regularly updated internet database providing free additional information. With its highly interdisciplinary approach, DAISIE and its Handbook will be the basis for future scientific investigations as well as management and control of alien invasive species in Europe.

This extensive work focuses on an important group of temperate freshwater fish, approaching the topic from the perspectives of both biology and aquaculture. It compiles the latest research on fish belonging to the Percidae family and describes in detail all biological aspects relevant to the culture of different species, including ecology, reproductive physiology, feeding and nutrition, genetics, immunology, stress physiology and behavior. It also considers commercial fish production and fish farming topics, such as protocols for induction of gonad maturation, spawning, incubation and larval rearing. Expert contributors not only provide a critical peer review of scientific literature but also original research data, and identify effective practical techniques. The book features chapters on systematics, ecology and evolution, on development, metabolism and husbandry of early life stages and on growth, metabolism, behavior and husbandry of juvenile and grow-out stages. Furthermore, the authors consider genetic improvement and domestication, as well as diseases and health management, crucial to the readers' understanding of these fish and how they can be cultured. Both researchers of percid fish biology and aquaculture professionals who are considering intensive and pond culture of percid fishes will value this timely and comprehensive handbook.)

`All these colours, from the blue sky to the yellow valley smoothly blending as they do in a rainbow, making a wall of light ineffably fine.’ Having spent significant time obsessively exploring and learning about the Sierra, John Muir’s passion for and belief in preserving the wilderness steadily grew. He believed that excessive grazing and logging would result in its eventual destruction, and so campaigned to designate the area as a protected national park. In 1890, the US Congress passed the National Park Bill, and the Yosemite and Sequoia national parks were established. At the time of writing, Muir’s views on conservation of the wilderness were totally radical; today, environmental activists are too often brushed aside in favour of something faster, easier, and cheaper. Muir not only educates us in the particulars of the botanicals of this spectacular landscape, but also inadvertently traps us in his web of enthusiasm for the beauty and significance of Mother Nature. The Yosemite gives us the tools to construct a detailed mental map of the Sierra, and leaves us with the resolution to be more compassionate and environmentally mindful. First published in 1912, and with a new introduction from Muir authority Terry Gifford, the message in The Yosemite is perhaps more pertinent now than it ever was. There is a lot to thank Muir for, not least opening our eyes to the earth beneath our feet.

This practical handbook of reptile field ecology and conservation brings together a distinguished, international group of reptile researchers to provide a state-of-the-art review of the many new and exciting techniques used to study reptiles. The authors describe ecological sampling techniques and how they are implemented to monitor the conservation status and population trends of snakes, lizards, tuatara, turtles, and crocodilians throughout the world. Emphasis is placed on the extent of statistical inference and the biases associated with different techniques and analyses. The chapters focus on the application of field research and data analysis for achieving an understanding of reptile life history, population dynamics, movement patterns, thermal ecology, conservation status, and the relationship between reptiles and their environment. The book emphasises the need for thorough planning, and demonstrates how a multi-dimensional approach incorporates information related to morphology, genetics, molecular biology, epidemiology, statistical modelling, animal welfare, and biosecurity. Although accentuating field sampling, sections on experimental applications in laboratories and zoos, thermal ecology, genetics, landscape ecology, disease and biosecurity, and management options are included. Much of this information is scattered in the scientific literature or not readily available, and the intention is to provide an affordable, comprehensive synthesis for use by graduate students, researchers, and practising conservationists worldwide.

An accessible and thought-provoking introduction to timespans in the natural world, featuring more than 80 beautifully designed diagrams. Which organisms live the longest? How does the natural world recover from fire? How long do eggs take to hatch? What are the world's fastest and slowest growing plants? Which species invest the most in parental care? How Nature Keeps Time discovers the natural world's most important and intriguing patterns of time. Beautifully designed with stunning colour photography and more than 80 reader-friendly charts and diagrams, this witty book examines a broad range of species from across the world and throughout time. From the lifecycle of immortal jellyfish and identifying the perfect amount of time for a 'good sleep' to mass extinction and the destruction of the coral reef, Helen Pilcher tackles highly relevant and fascinating topics in this deeply entertaining read.