The hunger for sodium has been used as a model system in which to study how the brain produces motivated behaviour. In this account of the field Jay Schulkin draws together information across a range of disciplines and topics, ranging from the ecology of salt ingestion to the sodium molecule and the action of various hormones. The phenomenon of sodium hunger was discovered by Curt Richter, the great American psychobiologist, over 50 years ago. Its study has been of interest for some time: to naturalists, psychologists, endocrinologists, physiologists and neuroscientists. This book offers a systematic account of the behaviour of the sodium hungry animal, the endocrine and physiological mechanisms that act to maintain sodium balance and then act on the brain to promote the search for and the ingestion of salt. Finally, the book provides a description of a neural network that orchestrates the behaviour of salt seeking and salt ingestion. Graduate students and research workers in psychology, physiology and neuroscience will find valuable information in this review.

This book presents a framework for development, optimization, and evaluation of behavioral, biobehavioral, and biomedical interventions. Behavioral, biobehavioral, and biomedical interventions are programs with the objective of improving and maintaining human health and well-being, broadly defined, in individuals, families, schools, organizations, or communities. These interventions may be aimed at, for example, preventing or treating disease, promoting physical and mental health, preventing violence, or improving academic achievement. This volume introduces the multiphase optimization strategy (MOST), pioneered at The Methodology Center at the Pennsylvania State University, as an alternative to the classical approach of relying solely on the randomized controlled trial (RCT). MOST borrows heavily from perspectives taken and approaches used in engineering, and also integrates concepts from statistics and behavioral science, including the RCT. As described in detail in this book, MOST consists of three phases: preparation, in which the conceptual model underlying the intervention is articulated; optimization, in which experimentation is used to gather the information necessary to identify the optimized intervention; and evaluation, in which the optimized intervention is evaluated in a standard RCT. Through numerous examples, the book demonstrates that MOST can be used to develop interventions that are more effective, efficient, economical, and scalable. Optimization of Behavioral, Biobehavioral, and Biomedical Interventions: The Multiphase Optimization Strategy is the first book to present a comprehensive introduction to MOST. It will be an essential resource for behavioral, biobehavioral, and biomedical scientists; statisticians, biostatisticians, and analysts working in epidemiology and public health; and graduate-level courses in development and evaluation of interventions.

Shaping Primate Evolution is an edited collection of state-of-the-art papers about how biological form is described in primate biology, and the consequences of form for function and behavior. The contributors are highly regarded internationally recognized scholars in the field of quantitative primate evolutionary morphology. Each chapter elaborates upon the analysis of the form-function-behavior triad in a unique and compelling way. This book is distinctive not only in the diversity of the topics discussed, but also in the range of levels of biological organization that are addressed from cellular morphometrics to the evolution of primate ecology. The book is dedicated to Charles E. Oxnard, whose influential pioneering work on innovative metric and analytic techniques has gone hand-in-hand with meticulous comparative functional analyses of primate anatomy. Through the marriage of theory with analytical applications, this volume will be an important reference work for all those interested in primate functional morphology.

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.

Foraging is fundamental to animal survival and reproduction, yet it is much more than a simple matter of finding food; it is a biological imperative. Animals must find and consume resources to succeed, and they make extraordinary efforts to do so. For instance, pythons rarely eat, but when they do, their meals are large--as much as 60 percent larger than their own bodies. The snake's digestive system is normally dormant, but during digestion metabolic rates can increase fortyfold. A python digesting quietly on the forest floor has the metabolic rate of thoroughbred in a dead heat. This and related foraging processes have broad applications in ecology, cognitive science, anthropology, and conservation biology--and they can be further extrapolated in economics, neurobiology, and computer science.
"Foraging "is the first comprehensive review of the topic in more than twenty years. A monumental undertaking, this volume brings together twenty-two experts from throughout the field to offer the latest on the mechanics of foraging, modern foraging theory, and foraging ecology. The fourteen essays cover all the relevant issues, including cognition, individual behavior, caching behavior, parental behavior, antipredator behavior, social behavior, population and community ecology, herbivory, and conservation. Considering a wide range of taxa, from birds to mammals to amphibians, "Foraging" will be the definitive guide to the field.

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.

Why do birds often live in pairs and rear chicks together, whereas female mammals usually live in groups and rear their young without male help? Why do males sometimes live with a single mate when they are capable of fertilizing more than one female's eggs? Is male helping behavior important for monogamous partnerships? This book provides answers concerning the biological roots of social monogamy in animal groups as diverse as ungulates, carnivores, rodents, birds and primates (including humans) for students and researchers in behavioral ecology, evolutionary anthropology and zoology.

Chimpanzees (Pan troglodytes) and bonobos (Pan paniscus) are the only two species of the genus Pan, and are humans' nearest relatives. This book is an extensive review of the most recent observations from field studies on the diversity of Pan social behavior, with contributions from many of the world's leading experts. A wide range of social behavior is discussed including tool use, hunting, reproductive strategies, conflict management, demographic variables and ecological constraints. In addition to interspecies behavioral diversity, this text describes exciting new research into variations between different populations of the same species.

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.

Reproduction is a fundamental feature of life, it is the way life persists across the ages. This book offers new, wider vistas on this fundamental biological phenomenon, exploring how it works through the whole tree of life. It explores facets such as asexual reproduction, parthenogenesis, sex determination and reproductive investment, with a taxonomic coverage extended over all the main groups - animals, plants including 'algae', fungi, protists and bacteria. It collates into one volume perspectives from varied disciplines - including zoology, botany, microbiology, genetics, cell biology, developmental biology, evolutionary biology, animal and plant physiology, and ethology - integrating information into a common language. Crucially, the book aims to identify the commonalties among reproductive phenomena, while demonstrating the diversity even amongst closely related taxa. Its integrated approach makes this a valuable reference book for students and researchers, as well as an effective entry point for deeper study on specific topics.

Important breakthroughs have recently been made in our understanding of the cognitive and sensory abilities of pollinators, such as how pollinators perceive, memorize, and react to floral signals and rewards; how they work flowers, move among inflorescences, and transport pollen. These new findings have obvious implications for the evolution of floral display and diversity, but most existing publications are scattered across a wide range of journals in very different research traditions. This book brings together outstanding scholars from many different fields of pollination biology, integrating the work of neuroethologists and evolutionary ecologists to present a multidisciplinary approach.

This book brings together the behavioral, physiological, and neuroendocrine regulation of calcium. An understanding of how the brain orchestrates whole-body demands for calcium is introduced. The approach is one in which behavior in addition to physiology serves bodily maintenance. The book links basic and clinical literature surrounding calcium homeostasis, as a wide variety of clinical syndromes are tied to calcium metabolism. Because calcium is so important during life stages particular to women, an emphasis is placed on the relevance of calcium to women's health throughout the book, though not exclusively since calcium is fundamental to both sexes.

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.

This book brings together the behavioral, physiological, and neuroendocrine regulation of calcium. An understanding of how the brain orchestrates whole-body demands for calcium is introduced. The approach is one in which behavior in addition to physiology serves bodily maintenance. The book links basic and clinical literature surrounding calcium homeostasis, as a wide variety of clinical syndromes are tied to calcium metabolism. Because calcium is so important during life stages particular to women, an emphasis is placed on the relevance of calcium to women's health throughout the book, though not exclusively since calcium is fundamental to both sexes.

A topic of perpetual fascination, the kangaroos of Australia have been the focus of myriad books and documentaries. "Kangaroos in Outback Australia" focuses on Yathong Nature Reserve, where three species of kangaroo -- red, eastern grey, and western grey -- overlap and create a unique opportunity for ecological study.

Dale and Yvette McCullough spent fifteen months in Yathong examining the comparative ecology and behavior of the different species. The McCulloughs used systematic counts, radio telemetry, direct observations, and other techniques to characterize and compare the different species' population sizes, home ranges and movements, activity patterns, habitat selection, feeding behavior, and social organization.

The researchers' previous work on the kangaroos' closest ecological counterparts in North America, the white-tailed and the mule deer, serves as a subject for comparison and enlarges the overall scope of the work.

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.

Did you know that chickens have different alarm calls for different predators? This fascinating dictionary covers every aspect of animal behaviour and includes terms from the related fields of ecology, physiology and psychology. Clear, concise entries are backed up by specific examples where appropriate, covering all aspects of behaviour from aggression to courtship, and fully cross-referenced. The author, David McFarland, was formerly head of the Animal Behaviour Research Group at Oxford University, and the editor of the Oxford Companion to Animal Behaviour (1981). Jargon free and informative, this dictionary is an excellent source of reference for students of biology and psychology, and essential reading for naturalists, bird-watchers, and the general reader with an interest in animal behaviour.

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.

Few things come more naturally to us than sex-or so it would seem. Yet to a chimpanzee, the sexual practices and customs we take for granted would appear odd indeed. He or she might wonder why we bother with inconveniences like clothes, why we prefer to make love on a bed, and why we fuss so needlessly over privacy. Evolution and Human Sexual Behavior invites us into the thought-experiment of imagining human sex from the vantage point of our primate cousins, in order to underscore the role of evolution in shaping all that happens, biologically and behaviorally, when romantic passions are aroused. Peter Gray and Justin Garcia provide an interdisciplinary synthesis that draws on the latest discoveries in evolutionary theory, genetics, neuroscience, comparative primate research, and cross-cultural sexuality studies. They are our guides through an exploration of the patterns and variations that exist in human sexuality, in chapters covering topics ranging from the evolution of sex differences and reproductive physiology to the origins of sexual play, monogamous unions, and the facts and fictions surrounding orgasm. Intended for generally curious readers of all stripes, this up-to-date, one-volume survey of the evolutionary science of human sexual behavior explains why sexuality has remained a core fascination of human beings throughout time and across cultures.

This text discusses the important role of steroids and neuropeptides in the regulation of behavior. The guiding principle behind the discussion is the concept of using good model animal systems to help us to understand how hormones influence the brain. The book emphasizes that steroids, and peptides or neuropeptides affect behavior by acting directly on the brain, and that common neural circuits underlie a variety of different central motive states. The first chapter focuses on developmental periods and sexually dimorphic behaviors; the second discusses sodium and water appetite, and ingestion; the third deals with appetite, food selection and ingestion. The fourth chapter examines how hormones influence parental behavior; the fifth is on fear and stress. The last chapter deals with biological clocks and endogenous rhythms. Senior undergraduate and graduate students in neuroscience, endocrinology, and physiology will find this text a useful guide to the role of hormones in behavior.

This reference discusses the important role of steroids and neuropeptides in the regulation of behavior. The guiding principle behind the discussion is the concept of using good model animal systems to help us to understand how hormones influence the brain. The book emphasizes that steroids and peptides or neuropeptides affect behavior by acting directly on the brain, and that common neural circuits underlie a variety of different central motive states. The first chapter focuses on developmental periods and sexually dimorphic behaviors; the second discusses sodium and water appetite, and ingestion; the third deals with appetite, food selection and ingestion. The fourth chapter examines how hormones influence parental behavior; the fifth is on fear and stress. The last chapter deals with biological clocks and endogenous rhythms.

In this book, field and laboratory researchers show that the Great Apes are capable of thinking at symbolic levels, traditionally considered uniquely human. They show these high-level abilities in both social and ecological domains, including tool use, imitation, pretense, self-awareness, deception, consolation, teaching and proto-culture itself. Here, contributors emphasize the mechanisms involved in building these abilities--especially the lengthy developmental and "enculturation" processes--suggesting changes to current views on how primate and human intelligence have evolved. Researchers and professionals in the fields of primatology, animal behavior, anthropology, linguistics, and cognitive psychology will find much useful information in this book.

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 behaviour are now beginning to answer these questions and to shed light on many other aspects of both animal and human behaviour. This interdisciplinary volume, first published in 1998, 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, and will provide a source of inspiration and understanding for students and researchers in behavioural biology, neurobiology, psychology and anthropology.

In a world supposedly governed by ruthless survival of the fittest, why do we see acts of goodness in both animals and humans? This problem plagued Charles Darwin in the 1850s as he developed his theory of evolution through natural selection. Indeed, Darwin worried that the goodness he observed in nature could be the Achilles heel of his theory. Ever since then, scientists and other thinkers have engaged in a fierce debate about the origins of goodness that has dragged politics, philosophy, and religion into what remains a major question for evolutionary biology. The Altruism Equation traces the history of this debate from Darwin to the present through an extraordinary cast of characters-from the Russian prince Petr Kropotkin, who wanted to base society on altruism, to the brilliant biologist George Price, who fell into poverty and succumbed to suicide as he obsessed over the problem. In a final surprising turn, William Hamilton, the scientist who came up with the equation that reduced altruism to the cold language of natural selection, desperately hoped that his theory did not apply to humans. Hamilton's Rule, which states that relatives are worth helping in direct proportion to their blood relatedness, is as fundamental to evolutionary biology as Newton's laws of motion are to physics. But even today, decades after its formulation, Hamilton's Rule is still hotly debated among those who cannot accept that goodness can be explained by a simple mathematical formula. For the first time, Lee Alan Dugatkin brings to life the people, the issues, and the passions that have surrounded the altruism debate. Readers will be swept along by this fast-paced tale of history, biography, and scientific discovery.

Insects and arachnids display the most impressive diversity of mating and social behavior among all animals. This book investigates sexual competition in these groups, and the variety of ways in which males and females pursue, persuade, manipulate, control and help one another, enabling us to gain a better understanding of how conflicts and confluences of interest evolve together. Each chapter provides a comprehensive review of mating systems in particular insect and arachnid groups, discusses intrinsic and extrinsic factors responsible for observed mating strategies, and suggests fruitful avenues for further research. The book culminates in a synthesis, reviewing the data in terms of the theory of sexual conflict. This broad-based book will be of immense value to students and researchers interested in reproductive strategies, behavioral ecology, entomology and arachnology.