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Books > Science & Mathematics > Biology, life sciences > Zoology & animal sciences > Vertebrates
This book sheds new light on the causes and consequences of elephant migration in the Panchet Forest Division of Bankura District in West Bengal, India- an area characterized by fragmented forested landscape modified by agriculture and settlement expansion. Anthropogenic activities result in the decline in quality and coverage of forests, loss of biodiversity and removal of forest corridors which ultimately restrict or modify the movement of elephants causing a forceful change of their habitats. A major objective of this monograph is to identify the characteristics of man-elephant conflicts in terms of land use change, cropping patterns, ecological characteristics of the fragmented dry deciduous forest, trends and patterns of elephant migration, and livelihood patterns of the inhabitants in the affected areas. Readers will discover insights into changes in the behavioral pattern of elephants and local people in the conflict ridden zones, and how this influences food selection. Through this book we also learn about rational management strategies that can be employed on the local and national level to mitigate human-elephant conflicts. Ecologists, landscape conservation planners and environmental managers engaged in the conservation of large vertebrates in fragmenting and human-dominated landscapes will find this book valuable.
Southern India is home to the greatest concentration of elephants in Asia. However, populations are fast diminishing and the Asian elephant is faced with extinction. In order to save this endangered creature we must increase our knowledge of this crucial population. This is the broadest treatment of the subject yet,written by one of the leading workers in the field, Raman Sukumar, the book promises to bring the understanding of elephants to a new level, making it of interest not only to biologists but also a broader audience including field ecologists, wildlife administrators, historians, conservationists and all those interested in elephants and their future.
The small, terrestrial eastern red-backed salamander is abundant on many forest floors of northeastern North America. Dr. Robert Jaeger and many of his graduate students spent over 50 years studying this species in New York and Virginia, using ecological techniques in forests and behavioral experiments in laboratory chambers in an attempt to understand how this species interacts with other species in the forest and the components of its intra- and intersexual social behaviors. The competitive and social behaviors of this species are unusually complex for an amphibian. This species is highly aggressive towards other similar-size species where they cohabit in forests, often leading to very little geographic overlap between the species. The authors examine the fascinating behavioral traits of this species including social monogamy, mutual mate guarding, sexual coercion, inter-species communication, and conflict resolution.
From the red grouse to the Ethiopian bush-crow, bird populations around the world can provide us with vital insights into the effects of climate change on species and ecosystems. They are among the best studied and monitored of organisms, yet many are already under threat of extinction as a result of habitat loss, overexploitation and pollution. Providing a single source of information for students, scientists, practitioners and policy-makers, this book begins with a critical review of the existing impacts of climate change on birds, including changes in the timing of migration and breeding and effects on bird populations around the world. The second part considers how conservationists can assess potential future impacts, quantifying how extinction risk is linked to the magnitude of global change and synthesising the evidence in support of likely conservation responses. The final chapters assess the threats posed by efforts to reduce the magnitude of climate change.
Mammalian predators are keystone species in any ecosystem. But many are elusive by nature and have territories that cover large areas of land, which makes them challenging to monitor. When tracks and signs prove difficult to interpret or are non-existent, hair samples recovered from the field offer a fantastic resource – one that is often overlooked. The Hair Scale Identification Guide to Terrestrial Mammalian Carnivores of Canada provides a fully illustrated, up-to-date hair scale reference for all 25 of the terrestrial carnivorous mammals of Canada. From the tiny least weasel (Mustela nivalis) to the giant polar bear (Ursus maritimus), unique traits – as well as tricky similarities – can clearly be observed through hair scale patterns magnified at the medial portion of the hair impression. These scale patterns aid in species identification when hair is the only possible evidence available. This guide also outlines hair impression techniques for samples found in the field, assisting ecologists and technicians with wildlife monitoring studies on predatory mammals where additional identification is required. Including range maps and key identification characteristics for all species represented, as well as superb images of hair scale impressions at two magnification levels, this book is a comprehensive tool for animal hair ID.
Eel of the genus Anguilla is an extraordinary fish, which due to its particular life cycle has fascinated biologists and physiologists ever since the pioneering works of Homer H. Schmidt in the 1930s. The Eel has become an excellent model for various aspects of adaptive physiological research. Despite that, several books dealing with eel biology, aquaculture, fishing, etc., have been published, but there still is a need for a text dealing with eel physiology. This book fills a void in eel literature by presenting various aspects of eel physiology in one comprehensive volume. With its numerous figures and tables and an extensive up-to-date bibliography, it will be of interest not only to researchers and students but also to people engaged in applied research in fishery and aquaculture. Eel is a commercially important fish, but it must be protected from over-exploitation; as such, conservation measures are necessary. It is hoped that this book will stimulate and suggest new lines of research.
A major revision of the first comprehensive field guide to cover the birds of this exciting region, this book will enable birders to identify any species found in any of the countries covered. Birds of Western Africa (Helm, 2001) was the first single-volume guide to cover all the species of this region, which comprises 23 countries from Senegal and southern Mauritania east to Chad and the Central African Republic, and south to Congo. This updated edition uses all of the illustrations from Birds of Western Africa, along with a number of new paintings. The book also has updated colour distribution maps for each species placed on the text pages for the first time. On facing pages, concise, authoritative text aids identification to create a conveniently-sized, lightweight field reference covering all 1300 species found in the region. This handy guide will enable birders to identify any species found in any of the countries covered.
An updated, informative review of the status and biology of the fifty-five species of mammals living wild in Ohio, richly illustrated with photographs, maps, drawings, and original artwork. This comprehensive reference illustrates how species within each of the seven orders of mammals in Ohio share modes of reproduction, locomotion, and nutrition, providing a framework for understanding the fascinating world of mammalian biology. Presentations of natural history in each account of the various species are enhanced with descriptions of intriguing adaptations for avoiding demise from predators, food shortages, and the frigid conditions of Ohio winters. The book is richly illustrated with range maps, exquisite skull drawings, beautiful photography, and engaging artwork. Challenges to wildlife conservation are considerable in Ohio, with its vast industrialized urban centers distributed across a largely agricultural landscape. With frequent citations of scientific reports and conservation efforts of the Ohio Division of Wildlife and of other public and private entities, this book instills an appreciation for the rich mammalian fauna of Ohio, as well as knowledge on how to join efforts to protect it. Covering all of the state's mammals, from tiny, obscure shrews to the magnificent white-tailed deer, Mammals of Ohio is a definitive resource for professional biologists and students. The narrative style throughout the book is accessible, providing the general reader with an appreciation for the full scope of the rich mammalian diversity in the state.
Current dominant thinking and practice in the private and public sectors asserts that peoples' development needs are in conflict with, or mutually exclusive to, the need to conserve the biosphere on which we depend. Consequently, we are asked to either diminish development in the name of conservation or diminish conservation in the name of development. Efforts to identify complementary objectives, or mutually acceptable trade-offs and compromises indicate, however, that this does not always have to be the case. This first volume in the State of the Apes series draws attention to the evolving context within which great ape and gibbon habitats are increasingly interfacing with extractive industries. Intended for a broad range of policy makers, industry experts, decision makers, academics, researchers and NGOs, these publications aim to influence debate, practice and policy, seeking to reconcile ape conservation and welfare, and economic and social development, through objective and rigorous analysis.
Within little more than a generation, whale-watching has been subject to global industrial development. It has been portrayed by destinations and business operators, and advocated by environmental groups, as a sustainable activity and an alternative to whaling. However, in recent years the sustainability of these activities has increasingly been questioned, as research shows that repeated disturbance by boat traffic can severely disrupt critical behaviours of cetaceans in the wild. Bringing together contributions by international experts, this volume addresses complex issues associated with commercial whale-watching, sustainable development and conservation of the global marine environment. It highlights widely expressed concerns for the failure of policy, planning and management and pinpoints both long-standing and emerging barriers to sustainable practice. Featuring numerous case studies, the book provides critical insights into the diverse socio-cultural, political, economic and ecological contexts of this global industry, highlighting the challenges and opportunities that arise along the pathways to sustainability.
How do chimpanzees say, 'I want to have sex with you?' By clipping a leaf or knocking on a tree trunk? How do they eat live aggressive ants? By using a short stick with one hand or long stick with both? Ivorian and Tanzanian chimpanzees answer these questions differently, as would humans from France and China if asked how they eat rice. Christophe Boesch takes readers into the lives of chimpanzees from different African regions, highlighting the debate about culture. His ethnography reveals how simple techniques have evolved into complex ones, how teaching styles differ, how material culture widens access to new food sources and how youngsters learn culture. This journey reveals many parallels between humans and chimpanzees and points to striking differences. Written in a vivid and accessible style, Wild Cultures places the reader in social and ecological contexts that shed light on our twin cultures.
Much of Charles Darwin's groundbreaking work as an evolutionary biologist stemmed from his study of birds. It is universally acknowledged that Darwin's observation of bird groups and species like the Galapagos finches, mockingbirds, and rock doves was critical to the development of his theories on natural selection, evolution, and sexual selection. The significant number of diverse birds that Darwin covered in his published works represents a most substantial ornithological contribution. His major books alone contain reference to and consideration of almost 500 bird species, as well as interesting and pertinent discussion of over 100 ornithological topics. "Charles Darwin's Birds" is a comprehensive treatment of Darwin's work as an ornithologist. Clifford Frith discusses every ornithological topic and bird species that Darwin researched, providing a complete historical survey of his published writing on birds. Through this, we learn how Darwin became an increasingly skilled and eventually exceptional ornithologist, and how his relationships grew with contemporary scientists like John Gould. It examines how Darwin was influenced by birds, and how the major themes of his research developed through his study of them. The book also features 4 appendices, which contain brief accounts of every bird species Darwin wrote about, basic ornithological information about each of the species, and a listing of where the species appears in Darwin's work.
How did the zebra really get its stripes, and the giraffe its long neck? What is the science behind camel humps, leopard spots, and other animal oddities? Such questions have fascinated us for centuries, but the expanding field of evo-devo (evolutionary developmental biology) is now providing, for the first time, a wealth of insights and answers. Taking inspiration from Kipling's 'Just So Stories', this book weaves emerging insights from evo-devo into a narrative that provides startling explanations for the origin and evolution of traits across the animal kingdom. Held's unique and engaging style makes this narrative both enlightening and entertaining, guiding students and researchers through even complex concepts and encouraging a fuller understanding of the latest developments in the field. The first five chapters cover the first bilaterally symmetric animals, flies, butterflies, snakes, and cheetahs. A final chapter surveys recent results about a menagerie of other animals.
Having trained as a civil engineer and surveyor, the ornithologist William Eagle Clarke (1853 1938) established himself in his field by preparing reports on bird migration for the British Association. Focusing on the species passing through the British Isles, Clarke spent many months in various lighthouses and on remote islands. He brought all his research together in this two-volume work, first published in 1912 and illustrated with maps and weather charts. In Volume 2, Clarke describes key examples of his investigations. Photographs of the sites he visited accompany the text. The locations range from the Flannan Isles, in the Outer Hebrides, to the island of Ushant, off the coast of Brittany. Clarke's expedition to the latter location ended abruptly when he and his colleague were mistaken for spies and forced to leave. Extensive coverage is also given to Fair Isle, between Shetland and Orkney."
Originally published in 1933, this book is a collection of extracts from the letters and diaries of British doctor, ornithologist and explorer Alexander Wollaston, beginning with the end of his schooldays at Clifton in 1893 and ending a year before his murder in 1930. Wollaston's papers give an intimate view into his various expeditions to a wide variety of locations, including Everest and New Guinea. This book will be of value to anyone with an interest in the history of exploration or in Wollaston and his legacy.
This atlas contains 189 coloured images taken from transversal, horizontal and sagittal sections of eleven organisms widely used in university teaching. Six invertebrate and five vertebrate species – from the nematode worm (Ascaris suum) to mammals (Rattus norvegicus) – are shown in detailed images. Studying the macrosections with unaided eyes, with a simple magnifier or binocular microscope might be of great help to accomplish traditional anatomical studies and to establish a certain spatial experience/space perception. This volume will be of great interest for biology students, researchers and teachers of comparative anatomy. It might act as supporting material of practical courses. Furthermore, medical practitioners, agricultural specialists and researchers having an interest in comparative anatomy might also benefit from it.
Primates communicate with each other using a wide range of signals: olfactory signals to mark territories, screams to recruit help while fighting, gestures to request food and facial expressions to initiate play. Primate Communication brings together research on all forms of interchange and discusses what we know about primate communication via vocal, gestural, facial, olfactory and integrated multimodal signals in relation to a number of central topics. It explores the morphological, neural and cognitive foundations of primate communication through discussion of cutting-edge research. By considering signals from multiple modalities and taking a unified multimodal approach, the authors offer a uniquely holistic overview of primate communication, discussing what we know, what we don't know and what we may currently misunderstand about communication across these different forms. It is essential reading for researchers interested in primate behaviour, communication and cognition, as well as students of primatology, psychology, anthropology and cognitive sciences.
The number of primates on the brink of extinction continues to grow, and the need to respond with effective conservation measures has never been greater. This book provides a comprehensive and state-of-the-art synthesis of research principles and applied management practices for primate conservation. It begins with a consideration of the biological, intellectual, economic, and ecological importance of primates and a summary of the threats that they face, before going on to consider these threats in more detail with chapters on habitat change, trade, hunting, infectious diseases, and climate change. Potential solutions in the form of management practice are examined in detail, including chapters on conservation genetics, protected areas, and translocation. An Introduction to Primate Conservation brings together an international team of specialists with wide-ranging expertise across primate taxa. This is an essential textbook for advanced undergraduates, graduate students, and established researchers in the fields of primate ecology and conservation biology. It will also be a valuable reference for conservation practitioners, land managers, and professional primatologists worldwide.
Three invited international experts present overviews of recent developments in key fields and will submit chapters for the book. Jane Hurst from Liverpool University in the UK presents an overview on the function, mechanisms and evolution of chemical signals, Penelope Hawkins from the University of Western Australia will detail the importance of male odors in female mate-choice and the priming of female reproduction, and Francesco Bonadonna from CNRS-CEFE, Montpellier in France presents an overview of the importance of chemical signals for the formation and maintenance of pair-bonds, parent - offspring recognition and navigation in seabirds. Select submissions are invited by the scientific committee to contribute chapters.
Arthur Shipley (1861-1927) was a British zoologist who held the position of Vice-Chancellor at the University of Cambridge from 1917 to 1919. First published in 1925, as the second edition of a 1923 original, this book was written by Shipley to provide students of elementary biology with an understanding of the unity and interconnectedness of life. The text attempts to bring out the fact that plants and animals are at one in being alive and makes clear the intimate association of both with their environment, whether it be the air, the soil or the sea. Numerous illustrative figures are included. This book will be of value to anyone with an interest in the history of education and Shipley's writings.
This is a field guide covering all species occurring in the country of Chile. Chile holds a great diversity of habitat types, from the Andes in the north down to the tundra and sub-Antarctic rainforest of Tierra del Fuego in the far south. Chile supports an interesting range of breeding and visiting birds, including nine species found nowhere else in the world. This guide features concise, identification-focused text positioned opposite the colour plates to allow quick and easy reference. Detailed distribution maps are provided for every species, completing the essential field guide to the birds of this spectacular and tourist-friendly country. 'This is the best field guide published thus far to the birds of southern South America.' www.worldtwitch.com (June 2004)
Thomas Bewick (1753-1828) is synonymous with finely crafted wood engravings of the natural world, and his instantly recognisable style influenced book illustration well into the nineteenth century. During his childhood in the Tyne valley, his two obsessions were art and nature. At fourteen, he was apprenticed to the engraver and businessman Ralph Beilby (1743-1817) with whom he later published A General History of Quadrupeds (also reissued in this series). The present work, with its text compiled from various sources, was the first practical field guide for the amateur ornithologist, inspiring also artists and writers. Each of the two volumes contains hundreds of illustrations of breathtaking beauty and precision: one for each species, neatly capturing its character in exquisite detail, interspersed with charming vignettes of country life. Volume 1, first published in 1797, covers land birds, including eagles, owls, sparrows and finches.
The ovary is a suitable organ for studying the processes of cell death. Cell death was first described in the rabbit ovary (Graaffian follicles), the phenomenon being called 'chromatolysis'. To date, it is recognized that various forms of cell death (programmed cell death, apoptosis and autophagy) are essential components of ovarian development and function. Programmed cell death is responsable for the ovarian endowment of primordial follicles around birth; in the prepuberal and adult period, apoptosis is a basic mechanism by which oocytes are eliminated by cancer therapies and environmental toxicants; in the ovarian cycle, follicular atresia and luteal regression involve follicular cell apoptosis. Finally, abnormalities in cell death processes may lead to ovarian disease such as cancer and chemoresistance. In this book, after an introductory description of various forms of cell death and of the ovary development and function in mammals, the processes of cell death in ovarian somatic cells and oocytes are described at cytological, physiological and molecular levels and analyzed in the embryonic, prepuberal and adult ovary. A complex array of molecular pathways triggered by extrinsic and intrinsic signals able tor induce or suppress cell death in the same cell, according to cell type and ovary developmental stage, emerges. Physiological interactions with the axis hypothalamus-hypophysis as well as ovarian internal functional signal are also critically reviewed to explain the abortive development of follicles before the beginning of the ovarian cycle. The book conveys information useful to the updating of biologists and physicians who are interested to the ovary biology and functions. Hopefully it should provide also clues for stimulating novel experiments in the study of cell death in the mammalian ovary still at an early stage.
Although birds have a rather uniform body plan and physiology, they exhibit marked variation in development type, parental care, and rate of growth. This makes them ideal for studying and understanding evolutionary adaptation. Presenting an integrative perspective of organism biology, ecology, and evolution, this book is a case study in evolutionary diversification of life histories.
'Birds have been to me the solace, the recreation, the passion of a lifetime.' So wrote Reginald Bosworth Smith (1839 1908), former Classics master at Harrow School. As a young man, he published his first book on birds while teaching at Oxford, and he continued to combine his lifelong love of birds with classical and literary teaching and research. He retired to a country house in Dorset and in 1905 published this book, based on a series of articles written in his retirement. Recording his own observations, some of many years before, and peppered with scholarly references to birds in literature, the essays cover individual birds such as the owl, the raven and the magpie, as well as bird-watching in Dorset and beyond. Imparting a love and respect for wildlife that remains inspiring, this book will be of great interest to the bird-lover and scholar of today. |
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