The only field guide to every species recorded in Seychelles, covering over 250 species. This compact field guide, based on Birds of Seychelles by Adrian Skerrett, Ian Bullock and Tony Disley (Helm 2000), is the only field guide to cover every species recorded in Seychelles. It covers more than 250 species, including all residents, migrants and vagrants. Concise text on facing pages highlights key identification features, including habitat, distribution, status and voice. The plates are based on the authors' previous work, but with the addition on many new images. The text has been completely re-written and revised for this edition, and the plates have been re-worked to accommodate a number of new additions to the country's list. There are now 12 more plates than in the first edition.

The evolution of segmentation is one of the central questions in evolutionary developmental biology. Indeed, it is one of the best case studies for the role of changes in development in the evolution of body plans. Segmented body plans are believed to have appeared several times in animal evolution, and to have contributed significantly to the evolutionary success of the taxa in which they are present. Because of the centrality of the subject, and the continuing interest in understanding segmentation, this book offers an often overlooked focus on the cellular aspects of the process of segmentation, providing an invaluable reference for students of evolutionary developmental biology at all levels. Key Features Explores the role that segmentation has played in the diversity of animals Documents the diverse cellular mechanisms by which segmentation develops Reviews the independent evolutionary origins of segmentation Provides insight into the general patterns of serial homology at the cellular level Related Titles Lynne Bianchi. Developmental Neurobiology (ISBN 978-0-8153-4482-7). Jonathan Bard. Principles of Evolution: Systems, Species, and the History of Life (ISBN 978-0-8153-4539-8). Gerhard Scholtz. Evolutionary Developmental Biology of Crustacea (ISBN 978-9-0580-9637-1). Dr. Ariel D. Chipman is Associate Professor in the Department of Ecology, Evolution & Behavior of the Silberman Institute of Life Sciences at The Hebrew University of Jerusalem. He is the author or co-author of dozens of peer reviewed scientific journal articles. His research focuses upon the evolution of animal body plans with a focus on arthropod segmentation, integrating comparative embryology, the fossil record and genome evolution.

Offering coverage of a wide range of topics on snake reproduction and phylogeny, this comprehensive book discusses everything from primordial germ migration in developing embryos to semelparity (death after reproduction) in the aspic viper. Beginning with a review of the history of snake reproductive studies, it presents new findings on development, placentation, spermatogenesis, male and female reproductive anatomy, hormonal control of reproduction, reproductive cycles, sex pheromones, and parental care. An indispensible reference, this book offers comparative chapters on snake phylognetics examining morphological characteristics alongside strictly molecular concerns. It is rife with illustrations and color plates.

Indigenous knowledge that embraces ornithology takes in whole social dimensions that are inter-linked with environmental ethos, conservation and management for sustainability. In contrast, western approaches have tended to reduce knowledge to elemental and material references. This book looks at the significance of indigenous knowledge of birds and their cultural significance, and how these can assist in framing research methods of western scientists working in related areas. As well as its knowledge base, this book provides practical advice for professionals in conservation and anthropology by demonstrating the relationship between mutual respect, local participation and the building of partnerships for the resolution of joint problems. It identifies techniques that can be transferred to different regions, environments and collections, as well as practices suitable for investigation, adaptation and improvement of knowledge exchange and collection in ornithology. The authors take anthropologists and biologists who have been trained in, and largely continue to practise from, a western reductionist approach, along another path - one that presents ornithological knowledge from alternative perspectives, which can enrich the more common approaches to ecological and other studies as well as plans of management for conservation.

The Biology of Lungfishes presents an up-to-date collection of reviews on some of the most important aspects of the life of lungfishes. The book draws on contributions from well-known experts with a long record of scientific work within their respective fields. The general natural history of the three genera of lungfishes, the fascinating fossil story, and modern ideas of lungfish phylogeny form the main part of the text. The book also covers the morphology and physiology of various organs.

"Even though the gorilla is our closest living relative, information about its anatomy, and particularly its musculature, is scarce. This book is the first photographic and descriptive musculoskeletal atlas of the gorilla. It includes high-quality photographs of musculoskeletal structures from most anatomical regions of the body, along with textual information about the attachments, innervations, and weight of the reported muscles. The atlas is an up-to-date review of the anatomical variations within gorillas as well as an extensive list of the synonyms used in the literature to designate the structures covered in the book. It also contains dissection observations of other primates and vertebrates, which are crucial for examining and understanding the homologies between the muscular structures of gorillas, humans, and other taxa"--

Waterfowl can be identified by using information about size, shape, color pattern, markings, behavior, habitat, range and calls. All clues are important, but by far the most important things to concentrate on for this group are shape and patterns of white. This guide features more than 25 species of ducks and includes both silhouettes that emphasize distinctive shape and placement of white, and full color images of both males and females. Sections address behavior, habitat, color patterns and other characteristics important for each species. A portion of the proceeds from the sale of this guide support continued educational activities by The Cornell Lab of Ornithology. Made in the USA.

This text is dedicated to the contributions of women ichthyologists. Three colleagues were selected to represent all women ichthyologists, Ethelwynn Trewavas (ET), Rosemary Lowe-McConnell (Ro) and Eugenie Clark (Genie). All have had distinguished professional careers and have contributed in their own ways to their science. The career of each is highlighted by a personal interview with one of the editors of the volume, a bibliography of their lifetime publications, and a biography of their careers. Questions of historical inequities and current controversies in the treatment of women ichthyologists by their peers are raised and addressed by the women themselves. The personal and professional influences of these three women, and other women ichthyologists, are highlighted. A survey article by Pat Brown brings a number of women ichthyologists to the attention of a broader audience, and points the way for a more comprehensive historical consideration of the accomplishments and contributions of women ichthyologists. The volume continues with 16 solicited and contributed papers. ET's studies of taxonomy and life history are echoed in papers on the taxonomy and systematics of marine angelfishes, and of freshwater bitterlings, a review of reproduction in the North Atlantic ichthyofauna, and a comparison of reproductive styles and systematics of African minnows. Ro's studies on ecology, life history and behaviour are paralleled by papers on growth and metabolism in piranha, the community structure in tide pool fishes, and the social system and reproductive patterns in groupers. Genie's pioneering work on sexual roles and sex change, and her field studies of the behaviour of marine fishes are reflected in papers on gonadal structure and environmental sex determination in brook lamprey, sexual patterns in hawkfish, reproduction and systematics in phallostethids, gonadal structure and systematics in gobiids, reproductive and predator avoidance behaviour in razorfish, early ontogeny of an African mouth brooder, and alternative life histories in killifish.

Lying just south of the equator, New Guinea’s is one of the top birding destinations on Earth. Its diverse habitats are home to over 800 species of permanent or migratory species of birds including the spectacular birds of paradise, many of which are endemic to the region. This beautifully illustrated guide highlights over 140 familiar and unique species and includes a map featuring prominent bird-viewing areas. Laminated for durability, this lightweight, pocket-sized folding guide is an excellent source of portable information and ideal for field use by visitors and residents alike. Made in the USA.

The unprecedented level of diversity recorded among the clones of self-fertilizing gynogenetic unisexuals and self-fertilizing simultaneous hermaphrodites challenges current ideas on the predominant role of recombination in promoting evolution of biological diversity. Though limited to a few species, the existence of self-fertilizing and cyclical sex changing hermaphrodites remains a puzzle to many geneticists and endocrinologists. Within a few days after the removal of a harem master or mistress, a successor changes sex and takes over the harem - the causes for the sex changing mechanism pose many challenges to socio-ecologists and behaviour specialists. This book is a synthesis of relevant and recent information on sexuality of fishes and points towards new directions of desired research.

The Vertebrata is one of the most speciose groups of animals, comprising more than 58,000 living species. This book provides a detailed account on the comparative anatomy, development, homologies and evolution of the head, neck, pectoral and forelimb muscles of vertebrates. It includes hundreds of illustrations, as well as numerous tables showing the homologies between the muscles of all the major extant vertebrate taxa, including lampreys, elasmobranchs, hagfish, coelacanths, dipnoans, actinistians, teleosts, halecomorphs, ginglymodians, chondrosteans, caecilians, anurans, urodeles, turtles, lepidosaurs, crocodylians, birds, and mammals such as monotremes, rodents, tree-shrews, flying lemurs and primates, including modern humans. It also provides a list of more than a thousand synonyms that have been used by other authors to designate these muscles in the literature. Importantly, it also reviews data obtained in the fields of evolutionary developmental biology, molecular biology and embryology, and explains how this data helps to understand the evolution and homologies of vertebrate muscles. The book will useful to students, teachers, and researchers working in fields such as functional morphology, ecomorphology, evolutionary developmental biology, zoology, molecular biology, evolution, and phylogeny. As the book includes crucial information about the anatomy, development, homologies, evolution and muscular abnormalities of our own species, Homo sapiens, it will also be helpful to physicians and medical students.

Al lank ’n gewilde hulpbron, die nuwe, opgedateerde Oorsiglys van Voëls in Suider-Afrika is nou beskikbaar. Dit bevat ’n lys van al die voëls wat in die streek te sien is, en bied ’n eenvoudige metode om aan te dui waar en wanneer jy hulle waargeneem het.

In gerieflike sakformaat bied dit:

• Kruisverwysings na die nuwe Sasol Voëls van Suider-Afrika (vyfde uitgawe)
• Ses kolumme vir veelvuldige waarnemings op ses verskillende plekke
• Jongste name van alle Suider-Afrikaanse voëls
• Endemiese en bedreigingstatus

Sal verwelkom word deur die streek se voëlkykers wat hulle waarnemings in Afrikaans wil nasien en opteken.

In most habitats, adaptations are the single most obvious aspects of an organisma (TM)s phenotype. However, the most obvious feature of many subterranean animals are losses, not adaptations. Even Darwin saw subterranean animals as degenerates: examples of eyelessness and loss of structure in general. For him, the explanation was a straightforward Lamarckian one, and one that did not involve adaptation and the struggle of existence. This volume is a comprehensive account of all known species of subterranean fishes. It includes an extensive introduction, history of investigations, consideration of non-stygobitic fishes in caves, and detailed analysis of the conservation status of these very rare animals.

The first edition of Frans de Waal's "Chimpanzee Politics" was acclaimed not only by primatologists for its scientific achievement but also by politicians, business leaders, and social psychologists for its remarkable insights into the most basic human needs and behaviors. Twenty-five years later, this book is considered a classic. Featuring a new preface that includes recent insights from the author, this anniversary edition is a detailed and thoroughly engrossing account of rivalries and coalitions--actions governed by intelligence rather than instinct. As we watch the chimpanzees of Arnhem behave in ways we recognize from Machiavelli (and from the nightly news), de Waal reminds us again that the roots of politics are older than humanity.

This volume examines cells set aside during development for use later in ontogeny or in adult life. There is no single term for such cells. The cells explored fall within several major categories - stem cells, set-aside cells (in echinoderm larvae), imaginal discs in insects such as Drosophila, meristems (plants), blastemata (regeneration in amphibians), neoblasts (regeneration in planarians). The book compares and contrasts these cell types and the environments (niches) in which they operate with the aim of unravelling any relationships between them, between their activation in development, and in their evolution. Key Features Explores the nature of deferred-use cells in evolutionary and developmental context. Reviews the mechanisms of development of set-aside cells, such as stem cells, meristems, and imaginal discs. Provides phylogenetic overview of different types of deferred-use cells. Compares and contrasts different theories on the origin of deferred-use cells. Related Titles Calegari, F. & C. Waskow, eds. Stem Cells: From Basic Research to Therapy (ISBN 978-1-4822-0775-0) Cabral, J. M. S. & C. L. da Silva, eds. Bioreactors for Stem Cell Expansion and Differentiation (ISBN 978-1-4987-9590-6) Kong, H., A. J. Putnam, & L. B. Schook, eds. Stem Cells and Revascularization Therapies (ISBN 978-1-4398-0323-3) Schaffer, D., J. D. Bronzino, & D. R. Peterson, eds. Stem Cell Engineering: Principles and Practices (ISBN 978-1-4398-7204-8)

The book describes the diversity and features of various vertebrate groups, ranging from the oldest living fishes to the relatively more recent groups to evolve such as mammals. The authors cover the structures of body systems including organs and tissues, as well as their functions and how they differ in various vertebrate groups. They also discuss the evolution of vertebrate groups from the earliest extinct ancestors to the living vertebrates as well as related groups that are now extinct. The book contains illustrations to clarify various issues and discussions of the features that enable vertebrates to adapt to aquatic and terrestrial environments they inhabit.

Southern Africa is home to a diverse reptile fauna of more than 600 species. Of these, nearly 70% are endemic to the region, being found nowhere else. This compact guide features 276 of the more colourful and conspicuous species, as well as those unique to or endangered in the region. This up-to-date guide makes an ideal travelling companion on trips to the wildlife areas of southern Africa.

It features:

- authoritative text describing key identification features and symbols depicting endangered and venomous species;

- full-colour photographs of the featured species;

- distribution maps showing the range of each species;

- thumbnail outlines of each family group, enabling quick identification

Since the award-winning first volume, The Biology of Sharks and Their Relatives, published in 2004, the field has witnessed tremendous developments in research, rapid advances in technology, and the emergence of new investigators beginning to explore issues of biodiversity, distribution, physiology, and ecology in ways that eluded more traditional studies. As an entirely new companion volume, Sharks and Their Relatives II: Biodiversity, Adaptive Physiology, and Conservation brings you up to speed on these significant changes, specifically examining how elasmobranch fishes - the sharks, skates, rays, and chimaeras - successfully survive in a wide range of habitats. Emphasizes Conservation of Threatened Species This multidisciplinary volume begins by examining elasmobranch biodiversity patterns and their integrated sensory systems. It then explores the physiological adaptations - from unique sensory modalities to compensatory mechanisms for physiological and environmental stress - that make these animals particularly well-suited for the range of habitats where they are found, in both oceanic and freshwater realms. Features Established Researchers and Introduces New Pioneers in the Field The book then considers the human interactions and anthropogenic effects on worldwide elasmobranch populations and the potential extinction risks posed by increasing threats from changes in habitat, changes in water chemistry, and growing commercial exploitation. This text truly is unrivaled in terms of coverage and readability, and it is a must-have reference for marine biologists, fishery scientists, oceanographers, and also marine, zoo, and aquarium veterinarians. To address subject areas and subdisciplines where coverage was absent or superficial in volume one, Jeffrey Carrier and associates have assembled in the current volume a collection of works that reveal patterns of biodiversity, the physiological attributes that contribute to elasmobranchs' successful exploitation of oceanic and freshwater realms, and the unique issues associated with the interaction between elasmobranchs and humans, all of this with overarching attention to issues of conservation. "We begin with chapters examining biodiversity. We have chosen to approach this discussion by presenting elasmobranchs as inhabitants of the range of zoogeographic provinces, realizing that significant overlap may occur for more pelagic species. This realization was reflected in the dialogue that occurred during preparation of the book between our chapter authors, and the recognition that many species simply cannot be confined to a specific habitat or range of habitats. We then continue by examining some of the unique physiological adaptations that allow these animals to exploit the range of habitats where they are found, from unique sensory modalities to compensatory mechanisms for physiological and environmental stress. "Our concluding section presents some of the challenges faced by members of these groups. We have asked our authors to consider human interactions and anthropogenic effects on worldwide populations and the potential extinction risks posed from survival under increasing threats from changes in habitat, changes in water chemistry, and increasing commercial exploitation. Conservation of species under threat remains a theme throughout the book. "Our authors represent an international group of investigators including established scientists whose work has been widely published and respected, and emerging younger scientists who have exploited recent advances in technology to ask and answer new questions as well as offering new insights and interpretations to enduring problems in the fields of ecology and physiology. We have asked them to be speculative and challenging, and we have asked them to predict future areas for investigation in hopes that their work will both inspire and provoke additional studies of these fascinating animals." - from the Preface

Pocket Guide to the Amphibians and Reptiles of Costa Rica introduces readers to all 470 amphibian and reptile species currently known to occur in the country. Drawing on thirty years of research and field study, Twan Leenders walks readers through the rich diversity of the country's herpetofauna—salamanders, frogs, crocodilians, turtles, lizards, snakes, and even the elusive, rarely seen caecilians. Numerous illustrations coupled with key field marks and copious pointers on how to distinguish similar looking species enable quick identification in the field. This pocket guide features: - 136 color plates and more than 700 photographs - 48 black-and-white scientific illustrations - Up-to-date species accounts and color-coded range maps - ID boxes to help place individual species their appropriate category Compact, richly illustrated, and written in a highly accessible manner, Pocket Guide to the Amphibians and Reptiles of Costa Rica is a must-have reference for those familiar with or new to the world of tropical herpetology.

A revised and expanded edition of this book, the definitive birdwatching site guide for Dorset, Hampshire and the Isle of Wight Whether you're seeking Firecrests or Hawfinch in the New Forest, Osprey in Dorset or eagles on the Isle of Wight, this book tells you where to go, what you'll see and when to see it. Keith Betton's fully revised and updated fifth edition of Where to Watch Birds in Dorset, Hampshire and the Isle of Wight is the essential site guide for any birdwatcher visiting or resident in the area. This book contains a comprehensive review of the area's significant birdwatching sites, providing all the information necessary to make the most of each and every trip, whatever the time of year. This edition also incorporates new sites and revised mapping throughout and has notes on access and target species. This book is an indispensable resource for birders in this bird-rich sweep of southern England.

This book summarizes and analyzes the biology, ecology, exploitation and management of small cetaceans in Japan. It describes the various types of cetacean fisheries in Japan and their historical development, the life histories and ecologies of the main species involved, and the history and problems of conservation and management. The data show that in some cases the number of small cetaceans harvested exceed sustainable limits and have led to depletion of populations. The book provides a case study of what can go wrong when the needs of industry and conservation collide. The descriptions of life history and ecology are relevant to issues of conservation and management, not just for cetaceans, but for all fisheries around the world.

Recent studies have increasingly demonstrated the widespread existence of spatio-temporal variations in the abundance and distribution of species of freshwater fishes, previously assumed not to move between habitats. These movements are often on a seasonal or ontogenetic basis, for spawning, feeding and refuge, and in many cases are fundamental for the successful completion of lifecycles.

This important book provides a single source for a range of previously widely dispersed information on these movements of fish in fresh waters, covering potamodromous fishes as well as the more familiar diadromous species, worldwide. Contents include full descriptions of types of migration and spatial behaviour, the stimulus and capacity for fish to migrate, the effects of climate on patterns of migratory behaviour, a taxonomic analysis (mostly by family) of freshwater fish migration, methods for studying migration, and details of the impacts of man's activities on freshwater fish migration.

"Migration of Freshwater Fishes" provides an excellent and comprehensive reference to which the river manager, biologist or student can now refer to obtain information, advice and current opinion on the migratory behaviour of most taxonomic groups of fishes occurring in fresh water. University libraries and aquatic research stations should also have copies of this essential reference book on their shelves.Well-known international authors.Of great commercial importance to fisheries and professional angling bodies.Draws together much new information in one place.Detailed review of world wide migratory behaviour for most groups of freshwater fishes.Pure and applied relevance, for academics, fisheries scientists, river managers and conservationists.This comprehensive book includes 67 tables and figures and over 1,400 references.

This book is a comprehensive presentation of health and diseases in reindeer and caribou, or just Rangifer, a key Circumarctic species with broad social and ecological value. It is an essential reference for anyone interested in the biology and health of wild or semi-domesticated reindeer and caribou, and is more broadly relevant for those with interests in other species of free-ranging and captive cervids. Beginning with a general introduction to Rangifer as a species, it then focuses on Rangifer "health" as a concept and describes the determinants of health at an individual and population level. Chapters cover a range of topics from nutrition and feeding to stress, non-infectious and infectious diseases, meat hygiene, capture and restraint, diagnosis and treatment of health issues, and finally, potential impacts of climate change on health of Rangifer. Reindeer and Caribou: Health and Disease compiles extensive research and experience-based information on issues ranging from drug doses for chemical immobilization, blood chemistry values, and raising an orphaned calf. In addition, it contains hundreds of high quality colour illustrations that contribute to its value as a diagnostic resource for recognizing various parasites, pathogens and signs of disease, both in live and dead animals. Each chapter is followed by a comprehensive list of references and a list of contact information for all the contributors, identifying world experts in the different areas of health for this circumpolar and fascinating species. This book is compulsory reading and an indispensable resource for anyone dealing with health in reindeer and caribou, including veterinarians, wildlife biologists and managers, reindeer herders/game ranchers, zoological husbandry personnel, and students with wildlife health.

Vertebrate invasive species are important ecologically, socially, and scientifically throughout much of the globe. However, the interdiction and options for management of invasive species are driven by localized regulation at the country or even state level and thus the management of species must be framed within that context. This book is focused around the management of invasive vertebrate species in the United States, although readers will find much of the material broadly applicable to invasive species in other regions. Vertebrate invasive species cause damage to agriculture, property, natural resources, and threaten human health and safety. However, most of these species occur in the United States resulting from human-mediated activities, often being released intentionally. For the first time, the wealth of scientific information about vertebrate invasive species in the United States is summarized and synthesized in a single volume to be easily accessible to ecologists and natural resource managers. With a focus on prominent terrestrial invasive species that have a history of policy and management and highlighting contemporary issues and management, this book consists of 18 chapters written by experts from across the United States. The first section of the book focuses on overarching policy and management topics associated with vertebrate invasive species; including biosecurity threats and risk assessment, policy and regulation, and the economics of their management. The second section provides in-depth reviews of noteworthy invasive mammals, birds, amphibians, and reptiles. After finishing this book, the reader should understand the complexity of managing invasive species, the unique challenges that each new species may present, and the steps forward that may decrease the impact of these species on the environment, human health, and the economy.

This book outlines the principles of flight, of birds in particular. It describes a way of simplifying the mechanics of flight into a practical computer program, which will predict in some detail what any bird, real or hypothetical, can and cannot do. The Flight program, presented on the companion website, generates performance curves for flapping and gliding flight, and simulations of long-distance migration and accounts successfully for the consumption of muscles and other tissues during migratory flights. The program is effectively a working model of a flying bird (or bat or pterosaur) and is the skeleton around which the book is built. The book provides a wider background and then explains how Flight works and shows how to set up and test hypotheses generated by the program.
The book and the program are based on adapting the conventional (and well-tested) thinking of aeronautical engineers to the biological problems of bird flight. Their primary aim is to convince biologists that this is the appropriate way to handle problems that involve flight, to make the engineering background accessible to biologists, and to provide a tool kit in the shape of the Flight program, which they can use to solve practical problems involving bird flight and migration. In addition, the book will be readily accessible to engineers who want to know how birds work, and should be of interest to the ever-growing community working on flapping "micro air vehicles" (MAVs). The program can be used to predict the flight performance and capabilities of reconstructed fossil birds and pterosaurs, flying in ancient atmospheres that differ from present conditions, and also, of course, to predict and account for the results of experiments and observations on living birds and bats.

* An up to date work by the world's leading expert on bird flight
* Examines the biology and biomechanics of bird flight with added reference to the flight of bats and pterosaurs.
* Uses proven aeronautical principles to help solve biological issues in understanding and predicting the flight capabilities of birds and other vertebrates.
* Provides insights into the evolution of flight and the likely capabilities of extinct birds and reptiles.
* Gives a detailed explanation of the science behind, and use of, the author's predictive bird flight simulation program - Flight - which is available on a companion website.
* Presents often difficult concepts in easily understood language.