This book looks at how three kinds of strongly electric fishes literally became "electrical," and how they helped to change the sciences and medicine. These fishes are the flat torpedo rays common to the Mediterranean, the electric catfishes of Africa, and an "eel" from South America. The discovery of the electrical nature of these fishes in the second half of the 18th century was the starting point of the two fundamental advances in the sciences: on the physiological side, the demonstration that nerve conduction and muscle excitation are electrical phenomena, and on the physical side, the invention of the electric battery. Starting with catfish tomb drawings from Ancient Egypt and colorful descriptions of torpedoes from the Classical Era, the authors show how these fishes were both fascinating and mysterious to the ancients. After all, not only could they produce torpor and temporary numbness when touched, they could stun through intermediaries, such as wet nets and spears.
Various explanations were given for these remarkable actions in ancient times, including the idea that they might release some sort of cold venom. Through the Renaissance, they also tended to be associated with occult and magical qualities. During the 1600s, natural philosophers speculated that rapid movements of specialized muscles could account for their actions. This idea was widely accepted until the 1750s, when the possibility that their shocks might be electrical began to be discussed.
Showing how researchers set forth to provide support for fish electricity is a major focus of this book. Here the authors transport us into the jungles of South America and later show how some live eels were transported to London, where John Walsh demonstrated in1776 that they can actually spark.
Subsequent chapters deal with further evidence for specialized fish electricity and how electric fishes helped to change ideas about even our own physiology. The authors also show how these fish remained a part of medicine, and how Volta modeled his revolutionary "pile" or electric battery on their anatomy.
From beginning to end, this drama is firmly anchored in the philosophy and science of the day. Moreover, with biographical information about the key players, readers can fully appreciate what they were thinking as they tried to understand one of Nature's greatest puzzles - a mystery that would transform nerve and muscle physiology in ways that earlier generations could not have anticipated. Although a scholarly volume, the book's style is generally narrative and, with its hundreds of magnificent illustrations, it should appeal to a large audience.

Biology and Physiology of Freshwater Neotropical Fish is the all-inclusive guide to fish species prevalent in the neotropical realm. It provides the most updated systematics, classification, anatomical, behavioral, genetic, and functioning systems information on freshwater neotropical fish species. This book begins by analyzing the differences in phylogeny, anatomy, and behaviour of neotropical fish. Systems such as cardiovascular, respiratory, renal, digestive, reproductive, muscular, and endocrine are described in detail. This book also looks at the effects of stress on fish immune systems, and how color and pigmentation play into physiology and species differentiation. Biology and Physiology of Freshwater Neotropical Fish is a must-have for fish biologists and zoologists. Students in zoology, ichthyology, and fish farming will also find this book useful for its coverage of some of the world's rarest and least-known fish species.

Amphibian species around the world are unusually vulnerable to a variety of threats, by no means all of which are properly understood. Volume 11 in this major series is published in parts devoted to the causes of amphibian decline and to conservation measures in regions of the world. This volume, Part 5 in the series, is concerned with Northern Europe (Luxembourg, Germany, Poland, Switzerland, Austria, Czech Republic, Slovakia, Norway, Sweden, Finland, Estonia, Latvia, Lithuania, Denmark). Each chapter has been written by experts from each country, describing the ecological background and the conservation status of affected species, with an emphasis on native species. As well as infectious diseases and parasites, threats take the form of introduced and invasive species, pollution, destruction and alteration of habitat, and climatic change. These are discussed as they affect each species. All these countries have monitoring schemes and conservation programs, whose origins and activities are described. Recommendations for action are also made. Edited by leading scholars in the field, Volume 11, when complete, will provide a definitive survey of the amphibian predicament and a stimulus to further research with the objective of arresting the global decline of an entire class of animal.

Biology and Ecology of Venomous Marine Scorpionfishes examines the diversity, utilization, and ways to safeguard against the world's most dangerous fish species. It covers the biological and ecological factors that differentiate each species in the Scorpaeninae (Scorpionfish) family and its Pteroinae (Lionfish) subfamily. This book offers important anatomical and identification information on marine scorpionfishes and delves into the diversity, habits and behaviors of each venomous species. In addition, it discusses the health risks that can plague these fish in and out of the wild, including parasites. This book is an essential resource to educate marine biology researchers and students on the various species of scorpionfish that also provides sea-goers with a guide that will help protect them against venomous stings from these fish.

Islands with large colonies of seabirds are found throughout the globe. Seabird islands provide nesting and roosting sites for birds that forage at sea, deposit marine nutrients on land, and physically alter these islands. Habitats for numerous endemic and endangered animal and plant species, seabird islands are therefore biodiversity hotspots with high priority for conservation.
Successful campaigns to eradicate predators (e.g., rats and cats) from seabird islands have been conducted worldwide. However, removal of predators will not necessarily lead to natural recovery of seabirds or other native species. Restoration of island ecosystems requires social acceptance of eradications, knowledge of how island food webs function, and a long-term commitment to measuring and assisting the recovery process.
This book, written collaboratively by and for ecologists and resource managers, provides the first large-scale cross-system compilation, comparison, and synthesis of the ecology of seabird island systems. Offering a new conceptual framework into which to fit the impacts of seabirds on island ecology, this is an essential resource for academics and resource managers alike.

More is known about the behavior, anatomy, and molecular biology of the laboratory rat than any other animal species. Although its natural history and psychological functions have been described previously in books, this is the first comprehensive description of its behavior. Both seasoned and beginning investigators will be amazed at the range and complexity of the species as described in the 43 chapters of this volume. The behavioral descriptions are closely tied to the laboratory methods from which they were derived, thus allowing investigators to correlate the behavior and methods and exploit them in their own research. This book is aimed at investigators in neuroscience who may not be familiar with rat behavior, but who wish to incorporate behavioral studies into their own research. Nevertheless, seasoned investigators will also find the book to be a handy reference for behavioral paradigms with which they may not be familiar. It is expected that as the genetic and molecular understanding of the rat develops, there will be an increasing need for knowledge about rat behavior. This book will serve as an indispensable resource for neuroscientists, psychologists, pharmacologists, geneticists, molecular biologists, zoologists, and their students and trainees.

With some 480 currently known fresh- and brackish-water fish species, Suriname has a rich inland fish fauna that is related to the most diverse freshwater fish fauna on planet Earth, i.e. that of the Amazon River. Interest in the freshwater fishes of Suriname by naturalists and scientists extends back over more than two centuries. Suriname is undoubtedly the site of origin of the oldest extant preserved specimens of South American fishes and 19 Surinamese fish species were described and figured by Linnaeus. Building on ichthyological studies initiated in the 1960s by the Brokopondo Project, this book provides an introduction to the freshwater fish fauna of Suriname, including identification keys, photographs of the species and descriptions of their habitats, that should be especially useful to decision makers, conservation biologists, aquarium hobbyists and eco-tourists.

An analysis of the rhetoric of science in the evolution of American ornithological discourse. It covers: the emergence of American ornithological discourse; discourse models for natural history and experimental science; diachronic changes; and more.

Birds catch the public imagination like no other group of animals; in addition, birders are perhaps the largest non-professional naturalist community. Genomics and associated bioinformatics have revolutionised daily life in just a few decades. At the same time, this development has facilitated the application of genomics technology to ecological and evolutionary studies, including biodiversity and conservation at all levels. This book reveals how the exciting toolbox of genomics offers new opportunities in all areas of avian biology. It presents contributions from prominent experts at the intersection of avian biology and genomics, and offers an ideal introduction to the world of genomics for students, biologists and bird enthusiasts alike. The book begins with a historical perspective on how genomic technology was adopted by bird ecology and evolution research groups. This led, as the book explains, to a revised understanding of avian evolution, with exciting consequences for biodiversity research as a whole. Lastly, these impacts are illustrated using seminal examples and the latest discoveries from avian biology laboratories around the world.

Provides a comprehensive systematic review of the African proboscidean fossil record Includes a summary of taxonomy, geochronology, biogeography and morphology Documents major faunal events including those associated with hominin origins Synthesizes new data from genomic, isotopic and microware analyses Emphasizes the role of elephants in ecosystems and the importance of conservation

An enduring and popular resource, this handy publication lists all the birds to be seen in the region and provides a simple way of recording where and when you have spotted them.

Pocket-sized for ease of use, it offers:

• Cross-referencing to the new Sasol Birds of Southern Africa (fifth edition)
• Six columns for multiple recordings at six different localities
• Up-to-date names for all southern African birds
• Endemic and threat status for all birds

This revised, updated checklist will be sought after by the region’s twitchers at all levels.

Bird migration is a charismatic topic that has fascinated naturalists for centuries. This book, the only concise and accessible synthesis of the area, describes not only the migrations, the incredible stamina and navigational skills of the birds, the effects on their distributions, survival, and evolution, but also the scientific skills and studies that underlie the information that has been gleaned about migration.

Cheetahs: Biology and Conservation reports on the science and conservation of the cheetah. This volume demonstrates the interdisciplinary nature of research and conservation efforts to study and protect the cheetah. The book begins with chapters on the evolution, genetics, physiology, ecology and behavior of the species, as well as distribution reports from range countries. These introductory chapters lead into discussions of the challenges facing cheetah survival, including habitat loss, declining prey base, human-wildlife conflict, illegal trade, and newly-emerging threats, notably climate change. This book also focuses on conservation strategies and solutions, including environmental education and alternative livelihoods. Chapters on the role of captive cheetahs to conservation and the long-term research of the species are included, as are a brief discussion of the methods and analyses used to study the cheetah. The book concludes with the conservation status and future outlook of the species. Cheetahs: Biology and Conservation is a valuable resource for the regional and global communities of cheetah conservationists, researchers, and academics. Although cheetah focussed the book provides information relevant to the study of broader topics such as wildlife conservation, captive breeding, habitat management, conservation biology and animal behaviour. Cover photograph by Angela Scott

The success of duck hunters throughout much of North America each fall depends to a large degree upon the spring productivity of the breeding waterfowl in the northern prairie states and the central provinces of Canada. In southern Manitoba, in the Waterfowl Research Station, a privately endowed outdoor laboratory owned by the North American Wildlife Foundation and operated by the Wildlife Management Institute. Its principal purpose is to determine facts useful in the management and perpetuation of this international migratory resource. When Dr. Lyle K. Sowls began his studies at Delta in 1946, many wide gaps remained in the knowledge of the relationship of breeding ducks to their home range. There were many scattered observations and a growing mass of data accumulated through the study of banding returned; but the activities of individual ducks during the critical spring months and the activities and the fate of broods each summer remained largely a mystery. Sowls, working toward his doctorate in wildlife management as a graduate student of the University of Wisconsin, studied the waterfowl at Delta for five years in an attempt to plug some of those gaps through intensive study of the waterfowl on one limited are. His studies developed new techniques and brought out new facts that were startling even to waterfowl biologists, facts of prime importance to the duck hunter or to any one interest in the future of America's waterfowl flights. As a result of Dr. Sowls' research, new light has been shed on such factors as predation, renesting, and homing habits of the important species of game ducks, and already have become the basis for revised hunting regulations and give a new understanding of waterfowl problems.