Sexual Selection in Primates provides an up-to-date account of all aspects of sexual selection in primates, combining theoretical insights, comprehensive reviews of the primate literature and comparative perspectives from relevant work on other mammals, birds and humans. Topics include sex roles, sexual dimorphism in weapons, ornaments and armaments, sex ratios, sex differences in behaviour and development, mate choice, sexual conflict, sex-specific life history strategies, sperm competition and infanticide. The outcome of the evolutionary struggle between the sexes, the flexibility of roles and the leverage of females are discussed and emphasised throughout. Sexual Selection in Primates is aimed at graduates and researchers in primatology, animal behaviour, evolutionary biology and comparative psychology.

In this edited collection, 17 internationally known authorities bring together the results of recent research on the natural history, ecology, behavior, morphology, and genetics of wasps as they pertain to the evolution of social behavior. The first part of the book opens with a review of the classification of the family Vespidae along with a revision of the subfamily Polistinae. Seven subsequent chapters deal with the natural history and social biology of each of the major taxa of social and presocial vespids. The second part of the book offers chapters on reproductive competition; worker polyethism; evolution of nest architecture, of queen number and queen control, and of exocrine glands; population genetics; the nutritional bsis of social evolution; and the nest as the locus of social life. The final chapter is a comparative discussion of social behavior in the Sphecidae, the only family of wasps besides the Vespidae in which well-developed social behavior is known. Providing a wealth of information about the biology of wasps, this comprehensive, up-to-date volume will be an essential reference for entomologists, evolutionary biologists, behavioral ecologists, ethologists, and zoologists. Contributors: James M. Carpenter. David P. Cowan. Holly A Downing. Raghavendra Gadagkar. Albert Greene. James H. Hunt. Robert L. Jeanne. Makoto Matsuura. Robert W. Matthews. Hudson K. Reeve. PeterFrank Roseler. Kenneth G. Ross. J. Philip Spradbery. Christopher K. Starr. Stefano Turillazzi. John W. Wenzel. Mary Jane West-Eberhard.

Cooperative breeders are species in which more than a pair of individuals assist in the production of young. Cooperative breeding is found in only a few hundred bird species world-wide, and understanding this often strikingly altruistic behaviour has remained an important challenge in behavioural ecology for over 30 years. This book highlights the theoretical, empirical and technical advances that have taken place in the field of cooperative breeding research since the publication of the seminal work Cooperative Breeding in Birds: Long-term Studies of Behavior and Ecology (1990, HB ISBN 0521 372984, PB ISBN 0521 378907). Organized conceptually, special attention is given to ways in which cooperative breeders have proved fertile subjects for testing modern advances to classic evolutionary problems including those of sexual selection, sex-ratio manipulation, life-history evolution, partitioning of reproduction and incest avoidance. It will be of interest to both students and researchers interested in behaviour and ecology.

Unlike most other large mammals, the Soay sheep population of Hirta in the St. Kilda archipelago show persistent oscillations, sometimes increasing or declining by more than 60% in a year. This study explores the causes of these oscillations and their consequences for selection on genetic and phenotypic variation within the population, drawing on studies over the past twenty years of the life-histories and reproductive careers of many sheep. It will be essential reading for vertebrate ecologists, demographers, evolutionary biologists and behavioral ecologists.

Hans Kruuk, a life-long naturalist, tells the fascinating story of carnivores and humans' intricate relationships with them. The book is illustrated with specially commissioned drawings, and deals not only with the wild beauty of carnivores and their conservation, but also with the topics of furs and medicine, man-eaters and sheep-killers. Kruuk explains in simple terms the role of carnivores in nature, how they impact human life, art and literature, and how we instinctively respond to them and why.

This multi-author volume provides both a conceptual context and an instruction in methods for many aspects of sex ratio research. The book discusses theory, statistical analysis, and genetics, as well as research in one of a wide spectrum of animal, plant, and microbial taxa. Sex Ratios: Concepts and Research Methods is primarily intended for graduate and professional behavioral and evolutionary ecologists in this field, but it will also be useful to biologists building evolutionary models, and researchers analyzing data involving proportions or comparisons across phylogenetically related species.

This volume brings together primary data from a variety of primate species living in both natural habitats and experimental settings, and explores the variables that may play a role in primates' behavioral strategies. Taken together, these studies demonstrate that predator sensitive foraging is relevant to many primates, of various body sizes and group sizes and living in different environments. Eat or be Eaten encourages further discussion and investigation of the subject and will make fascinating reading for researchers and students in primatology, ecology, and animal behavior.

Die vorliegende Studie wurde im Juli 2000 von den Philosophischen Fakultaten I und II und von der Erziehungswissenschaftlichen Fakultat der Friedrich-Alexander-Universitat Erlangen-Nurnberg als Habilitationsschrift angenommen. Mein Dank gilt all jenen, die mich wahrend der Entstehung der Arbeit auf ganz unter- schiedliche Weise unterstutzt haben. Dies gilt zuallererst den Gutachtern der Arbeit, Herrn Prof. Dr. Roland Sturm, Herrn Prof. Dr. Jurgen Gebhardt und Herrn Prof. Dr. Wolfgang Rudzio. Daneben danke ich meinen Interviewpartnern, die sich trotz ihres knappen Zeitbudgets oft stundenlang meinen Fragen stellten, ebenso den Mitarbeitern in den Landtagsverwaltungen und Staatskanzleien, die mir den Zugang zu unverzichtbaren Materialien ermoeglichten. Ohne die Bereitschaft der Koalitionsakteure und der Vertreter der Oppositionsfraktionen in den untersuchten Landtagen, mir Einblicke in die informel- len Ablaufe des Koalitionsmanagements zu gewahren, waren die Fallstudien -und damit die Studie insgesamt -nicht durchfuhrbar gewesen. Halle, im Dezember 2000 Sabine Kropp Teill Zur Konzeptionalisierung des Regierungshandelns von Koalitionen 1. Gegenstand und Aufbau der Studie Koalitionen werden gern als Ehen auf Zeit, als Zweckehen, als Zwangsehen gar tituliert. Im besten Fall, dies deuten solche Umschreibungen an, gehen die Partner in solchen Gemeinschaften rucksichtsvoll miteinander um. Eine Liebesheirat jedoch sagt man Parteien nur in den seltensten Fallen nach; auch Scheidungen werden zuweilen in Kauf genommen. Den Vorteilen des gemeinsamen Zusammenlebens zuliebe, ordnen die Partner ihre Bedurfnisse und individuellen Interessen zwar bis zu einem gewissen Grad der politischen Lebensgemeinschaft unter. Lieber aber wurden sie alleine leben und Alltagsentscheidungen ohne Mitsprache ihres Partners treffen.

The second volume of the collected papers of W D Hamilton, each one introduced by an autobiographical essay. Hamilton is the most important theoretical biologist of the 20^th century and his papers, not especially numerous, have had, and continue to exert, an enormous influence. Many were originally published in obscure and inaccessible places. Volume 1 (OUP, still in print) was devoted mainly to selection for social behaviour, the first half of Hamilton's life's work; Volume 2 is on the other half, on sex and sexual selection, and it includes the 18 papers published between 1980 and 1991. Each paper is accompanied by a specially written introduction describing why the work was done, how the paper came to be written, and its eventual fate. The introductions, written in an accessible, non-technical style, include history, opinion, and excerpts from Hamilton's life.

The ability of species to migrate has interested ecologists for many years. Now that so many species and ecosystems face major environmental change, the ability of species to adapt to these changes by dispersing, migrating, or moving between different patches of habitat can be crucial to ensuring their survival. This book provides a timely and wide-ranging overview of the study of dispersal and incorporates much of the latest research. The causes, mechanisms, and consequences of dispersal at the individual, population, species and community levels are considered. The potential of new techniques and models for studying dispersal, drawn from molecular biology and demography, is also explored. Perspectives and insights are offered from the fields of evolution, conservation biology and genetics. Throughout the book, theoretical approaches are combined with empirical data, and care has been taken to include examples from as wide a range of species as possible.

Infanticide by males is relatively common in primates, carnivores, and rodents, although it tends to be rare even in species in which it occurs. Is this behavior pathological or accidental, or does it reflect a conditional reproductive strategy for males in certain circumstances? In this book, case studies and reviews confirm the adaptive nature of infanticide by males in primates, and help to predict which species should be vulnerable to this phenomenon. Much of the book is devoted to exploring the evolutionary consequences of the threat of infanticide by males for social and reproductive behavior and physiology. Written for graduate students and researchers in animal behavior, behavioral ecology, biological anthropology, and social psychology, this book shows that social systems are shaped by ecological pressures, as well as social pressures such as infanticide risk.

Motivation: A Biobehavioural Approach provides the reader with an understanding of why individuals exhibit certain behaviors, and what causes these actions. Roderick Wong presents an analysis of motivated behavior such as sexual activity, parental behavior, food selection, and fear or aggression, from a biological perspective. Each chapter focuses on the individual systems underlying specific motivational states that result in motivated acts. The author discusses similarities, differences, and integration between these motivational systems throughout the volume. Using a framework derived from research and theory from animal behavior and comparative psychology, he analyzes relevant issues in human motivation such as mate choice, nepotism, attachment and independence, sensation-seeking, obesity, and parent-offspring conflict. This book will be particularly useful for undergraduate students in psychology or behavioral science taking courses in motivation and emotion, comparative psychology, animal behavior, or biological psychology.

Harriers are a world-wide group of birds of prey whose mating systems, population dynamics, and evolution are well-studied. This is the first book to synthesise and analyse the masses of data on the behavioural ecology of harriers. It offers an intriguing comparison of breeding systems among harriers in the northern and southern hemispheres, and includes a new phylogeny of the harriers, based on the most recent DNA findings. It is illustrated throughout with original line drawings of these impressive birds.

The size and composition of primate groups varies tremendously across species, within species, and within groups over time. Written by leading authorities, this book focuses on the causes and consequences of variation in the number of males per group. This variation lies at the heart of understanding adaptive variation among primate social systems. The volume also provides an extensive overview of variation in group composition across all major primate taxa using up-to-date reviews, case studies, evolutionary theory, and theoretical models. A comparative review of birds and selected other mammals is included. This text will become a favorite with all those interested in the behavioral ecology of primates.

This new edition of the bestselling Clinical Signs in Small Animal Medicine presents 800 all new color photographs of the highest quality, with detailed captions that focus on key pointers to diagnosis and treatment. The book is organised into chapters by body system, each beginning with a list of 'Clinical Pearls'. These amusing and accurate key points will be invaluable when considering conditions or highlighting common concerns. Within each chapter, the superb photographs of real cases are annotated with brief, key information that provides a succinct and useful reminder of lessons learned.

How does an understanding of the behavior of a given animal species contribute to its conservation? The answer has profound consequences for our efforts to conserve endangered species. Behaviour and Conservation links the extraordinary advances in behavioral ecology over the past thirty years with the new discipline of conservation biology. It shows how an evolutionary approach can help solve problems in practical conservation, and suggests a new direction for behavioral ecology. Leading authorities in animal behavior address the ways in which behavior and conservation interact, investigating the conservation impact of people, habitat loss and fragmentation, threats to wild populations of animals, conservation priorities, and the use of behavioral approaches for conservation applications.

Social learning commonly refers to the social transfer of information and skill among individuals. It encompasses a wide range of behaviors that include where and how to obtain food, how to interact with members of one's own social group, and how to identify and respond appropriately to predators. Mammalian Social Learning discusses a wide diversity of species, some of which have never been discussed in this context before, with particular reference made to their natural life strategies. Expert chapters consider social learning in humans in comparison with other mammals, especially in their technological and craft traditions. Moreover, for the first time, attention is given to the social learning abilities of prehistoric hominids.

This book sets out a framework for adaptive explanations of behavior, and uses it to provide analyses of a range of biological issues such as energetic gain, energy-predation trade-offs, dynamic games, state-dependent life histories, annual routines, and fluctuating environments. The volume gives a definitive account of this exciting new field, summarizing previous research, presenting new material, and suggesting directions for future research. The framework adopted in this book provides a common currency for comparing diverse actions. Ultimately this could lead to the development of state-dependent dynamic models. This book will be a revelation for graduate students and researchers interested in behavioral or evolutionary biology.

Featuring animal research, from pigeons to primates, this book explains how comparative psychology can enrich our insights into human psychological processes. Each chapter covers a different clinical disorder or problem commonly encountered by clinical psychologists and therapists, including depression, autism and social communication disorders, substance abuse and obesity, and reviews related research into animal behaviors. Revealing how animal models can grant psychologists a better understanding of the motivations and causes for behaviors that are impossible or challenging to study in humans, the authors suggest interventions, drawn from research findings in comparative psychology, that can effectively address psychological disorders in humans.

Behaviour describes animal and human behaviour, including environmental influence, behavioural development, courtship and social interaction. It covers all the material required for the study of behaviour at A-level, whilst at the same time providing an accessible and informative introduction to the fascinating science of behaviour. The authors provide a list of further reading for those who wish to learn more. The Advanced Biology Topics series of books will be of interest to students studying a wide variety of biological subjects at A-level, or as part of a vocational or undergraduate course.

This book describes the sampling and statistical methods used most often by behavioral ecologists and field biologists. Written by a biologist and two statisticians, it provides a rigorous discussion together with worked examples of statistical concepts and methods that are generally not covered in introductory courses, and which are consequently poorly understood and applied by field biologists. The first section reviews important issues such as defining the statistical population and the sampling plan when using nonrandom methods for sample selection, bias, interpretation of statistical tests, confidence intervals, and multiple comparisons. After a detailed discussion of sampling methods and multiple regression, subsequent chapters discuss specialized problems such as pseudoreplication, and their solutions. This volume will quickly become the favorite statistical handbook for all field biologists.

Many mammals, such as otters, live in close association with rivers and streams, feeding in them, or using them as a place of safety or means of escape from predators. The distinct adaptations that riparian mammals have evolved in order to live in these environments also handicap them for living elsewhere. These animals are therefore threatened by alterations to their environment. In recent years, our rivers have become highly polluted, and have been subject to bankside modifications for agriculture and forestry, enhanced or decreased water flow, and recreation. As a result, they have become less and less suitable for these highly specialized animals. This book looks at the habitat utilization, adaptation, feeding ecology, and conservation status of a range of riparian mammals. It gives insights into the problems facing these fascinating animals, and how they might be overcome.

How does the environment shape the ways an animal processes information and makes decisions? How do constraints imposed on nervous systems affect an animal's activities? To help answer these questions, "Cognitive Ecology" integrates evolutionary ecology and cognitive science, demonstrating how studies of perception, memory, and learning can deepen our understanding of animal behavior and ecology.
Individual chapters consider such issues as the evolution of learning and its influence on behavior; the effects of cognitive mechanisms on the evolution of signaling behavior; how neurobiological and evolutionary processes have shaped navigational activities; functional and mechanical explanations for altered behaviors in response to changing environments; how foragers make decisions and how these decisions are influenced by the risks of predation; and how cognitive mechanisms affect partner choice.
"Cognitive Ecology" will encourage biologists to consider how animal cognition affects behavior, and will also interest comparative psychologists and cognitive scientists.

Why do animals play? Play has been described in animals as diverse as reptiles, birds and mammals, so what benefits does it provide and how did it evolve? Careful, quantitative studies of social, locomotor and object play behavior are now beginning to answer these questions and shed light on many other aspects of both animal and human behavior. This unique interdisciplinary volume brings together the major findings about play in a wide range of species including humans. Topics about play include the evolutionary history of play, play structure, function and development, and sex and individual differences. Animal Play is destined to become the benchmark volume in this subject for many years to come, and will provide a source of inspiration and understanding for students and researchers in behavioral biology, neurobiology, psychology and anthropology.

At first glance, studying behavior is easy, but as every budding ethologist quickly realizes, there are a host of complex practical, methodological and analytical problems to solve before designing and conducting the study. How do you choose which species or which behavior to study? What equipment will you need to observe and record behavior successfully? How do you record data in the dark, in the wet, or without missing part of the action? How do you analyze and interpret the data to yield meaningful information? This new expanded edition of the Handbook of Ethological Methods provides a complete step-by-step introduction to ethological methods from topic choice and behavioral description to data collection and statistical analysis. This book is a must for both beginning students and experienced researchers studying animal behavior in the field or laboratory.