This authored monograph presents a mathematical description of the time evolution of neutral genomic regions in terms of the differential Lyapunov equation. The qualitative behavior of its solutions, with respect to different mutation models and demographic patterns, can be characterized using operator semi group theory. Mutation and drift are two of the main genetic forces, which act on genes of individuals in populations. Their effects are influenced by population dynamics. This book covers the application to two mutation models: single step mutation for microsatellite loci and single-base substitutions. The effects of demographic change to the asymptotic of the distribution are also covered. The target audience primarily covers researchers and experts in the field but the book may also be beneficial for graduate students.

Written primarily for 16-19 year old students, this primer aims to extend students' knowledge and inspire them to take their school-level learning further. It explores topics that are familiar from the curriculum and also introduces new ideas, giving students a first taste of the study of biology beyond school-level and demonstrating how concepts frequently encountered at school are relevant to and applied in current research. This is the ideal text to support students who are considering making the transition from studying biology at school to university. This primer introduces students to key elements of the endocrine system, including the structure and function of the major types of hormones. It explores the role of hormones in disease, in development, in reproduction and in behaviour. Although humans are its main focus, it draws on illuminating examples from a range of other species, including sex changes and aggression in fish, metamorphosis in amphibians, induction of ovulation in different species, and bonding behaviour in birds. The final section of the book looks at ways in which hormones can be used in medicine and agriculture, and can be abused to enhance sporting performance and weight loss. This primer will expand the breadth and depth of student understanding of the endocrine system, its variety, and its huge importance.

Examining mating from the male perspective, this book provides an overview of mammalian reproduction to illustrate the important role that male desire plays in the life of mammals. Written in a conversational style that will appeal to those without specialist knowledge of the field, it begins with a broad overview of sexual reproduction in mammals, explaining the importance of mixing genes, sexual selection and the concept of mating seasons. Subsequent chapters examine some of the most important aspects in detail including mating behaviour, the structure and function of the male organs of reproduction and their physiological control and modes of copulation. A final chapter considers human reproduction, explaining how our physical and social evolution have contributed to the development of sexual behaviour that is markedly different to that of other mammals, due in particular to the absence of oestrus and seasonality in the human female.

One of the greatest unmet challenges in conservation biology is the genetic management of fragmented populations of threatened animal and plant species. More than a million small, isolated, population fragments of threatened species are likely suffering inbreeding depression and loss of evolutionary potential, resulting in elevated extinction risks. Although these effects can often be reversed by re-establishing gene flow between population fragments, managers very rarely do this. On the contrary, genetic methods are used mainly to document genetic differentiation among populations, with most studies concluding that genetically differentiated populations should be managed separately, thereby isolating them yet further and dooming many to eventual extinction! Many small population fragments are going extinct principally for genetic reasons. Although the rapidly advancing field of molecular genetics is continually providing new tools to measure the extent of population fragmentation and its genetic consequences, adequate guidance on how to use these data for effective conservation is still lacking. This accessible, authoritative text is aimed at senior undergraduate and graduate students interested in conservation biology, conservation genetics, and wildlife management. It will also be of particular relevance to conservation practitioners and natural resource managers, as well as a broader academic audience of conservation biologists and evolutionary ecologists.

"Physiological Adaptations for Breeding in Birds" is the most current and comprehensive account of research on avian reproduction. It develops two unique themes: the consideration of female avian reproductive physiology and ecology, and an emphasis on individual variation in life-history traits. Tony Williams investigates the physiological, metabolic, energetic, and hormonal mechanisms that underpin individual variation in the key female-specific reproductive traits and the trade-offs between these traits that determine variation in fitness.

The core of the book deals with the avian reproductive cycle, from seasonal gonadal development, through egg laying and incubation, to chick rearing. Reproduction is considered in the context of the annual cycle and through an individual's entire life history. The book focuses on timing of breeding, clutch size, egg size and egg quality, and parental care. It also provides a primer on female reproductive physiology and considers trade-offs and carryover effects between reproduction and other life-history stages. In each chapter, Williams describes individual variation in the trait of interest and the evolutionary context for trait variation. He argues that there is only a rudimentary, and in some cases nonexistent, understanding of the physiological mechanisms that underpin individual variation in the major reproductive life-history traits, and that research efforts should refocus on these key unresolved problems by incorporating detailed physiological studies into existing long-term population studies, generating a new synthesis of physiology, ecology, and evolutionary biology.

As the study of cooperative breeding systems expands, a number of key species form the examples that underpin our general understanding. The ostrich is increasingly becoming such a textbook species, on the basis of the results obtained in Brian Bertram's study of vigilance and egg discrimination in this extraordinary bird. Here Bertram presents new data on the ostrich communal nesting system, in which several females lay in one female's nest, with only one female and the male doing all the work. The Ostrich Communal Nesting System unravels the basis of the cooperation observed, and explains how a system involving apparent altruism is maintained by natural selection. It is now possible as never before to explain and quantify the effects of the different choices these birds make and to integrate ecological and morphological factors such as predation and size. Based on three seasons of study in Tsavo West National Park in Kenya, this book depended on recognizing individual birds, detecting and monitoring well-concealed nests, determining motherhood of eggs from their surface appearance, and time-lapse photography of nests. Key findings were that females could switch rapidly between reproductive strategies, that a nesting female could recognize her own eggs and when necessary discriminate against those of other females, and that the whiteness of ostrich eggs is an adaptation that protects them against overheating but at the cost of greater vulnerability to predation.

Originally published in 1992.

The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These paperback editions preserve the original texts of these important books while presenting them in durable paperback editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.

Anthropometry is the measurement of human morphology and is used in a wide range of applied and research contexts. In this volume, distinguished contributors including anthropologists, human biologists, physiologists, nutritionists and clinical scientists describe many of the ways in which anthropometry is used, and discuss problems associated with different methods of assessment. Topics include the measurement of growth asymmetry and variability in adult body size, measurement error and statistical issues in anthropometry and the construction and use of growth charts in growth monitoring. In addition, the use of anthropometry in assessments of body composition, physical performance and fitness is discussed. This book will be of interest to graduates and researchers in human biology, anthropology and nutrition. It will also be useful to workers in sports medicine, ergonomics, orthopaedics and paediatrics.

This book reviews comprehensively incubation effects on embryonic development in birds and reptiles and presents the first ever synthesis of data from these two vertebrate classes. The book is in three parts. The first deals with the structure, shape and function of eggs. The second examines the effects of the four main parameters on the process of incubation: temperature, water relations, respiratory gas exchange, and turning. The third section deals with early embryonic development and the methods used to investigate and manipulate the embryo. Further chapters deal with aestivation, megapodes and oviparity. International experts in each field have contributed to this extensively referenced volume and it will be of great interest not only to research biologists, but also to bird and reptile breeders, whether in commercial organisations or in zoos.

A growing body of evidence has begun to reveal flaws in the traditional assumption of female passivity and lack of discrimination after copulation has begun. William Eberhard has compiled an impressive array of research on the ability of females to shape the outcome of mating. He describes studies of many different cryptic mechanisms by which a female can accept a male for copulation but nevertheless reject him as a father. Evidence from various fields indicates that such selectivity by females may be the norm rather than the exception. Because most post-copulatory competition between males for paternity is played out within the bodies of females, female behavior, morphology, and physiology probably often influence male success in these contests. Eberhard draws examples from a diversity of organisms, ranging from ctenophores to scorpions, nematodes to frogs, and crickets to humans.

Cryptic female choice establishes a new bridge between sexual selection theory and reproductive physiology, in particular the physiological effects of male seminal products on female reproductive processes, such as sperm transport, oviposition, and remating. Eberhard interweaves his review of previous studies with speculation on the consequences of this theoretical development, and indicates promising new directions for future research.

The Fourth Edition of Knobil & Neill will continue to serve as a reference aid for research, to provide the historical context to current research, and most importantly as an aid for graduate teaching on a broad range of topics in human and comparative reproduction. In the decade since the publication of the last edition, the study of reproductive physiology has undergone monumental changes. Chief among these advances are in the areas of stem cell development, signaling pathways, the role of inflammation in the regulatory processes in the various tissues, and the integration of new animal models which have led to a greater understanding of human disease. This new edition will seek to synthesize all of this new information at the molecular, cellular, and organismal levels of organization and present modern physiology a more understandable and comparative context.
*The leading comprehensive work on the physiology of reproduction
*Edited and authored by the world's leading scientists in the field
*Is a synthesis of the molecular, cellular, and organismic levels of organization
*Bibliogrpahics of chapters are extensive and cover all the relevant literature

Cooperative breeding refers to a social system in which individuals other than the parents provide care for the offspring. In addition to alloparental care, two further characteristics are common among species exhibiting cooperative breeding: delayed dispersal and delayed reproduction. Among vertebrates, cooperative breeding is expressed most prominently in birds and mammals. The book explores the phenomenon in a wide variety of mammals, including rodents, primates, viverrids, and carnivores. Comparative studies of cooperative breeding provide important tests for the origin and maintenance of sociality in complex groups. Understanding the behavioral and physiological mechanisms underlying cooperative breeding yields insights into the fundamental building blocks of social behavior in animal societies. Although several recent volumes have summarized the state of our knowledge of the ecology and evolution of cooperative breeding in birds, Cooperative Breeding in Mammals is the first book devoted to these issues in mammals, and it will appeal to zoologists, ecologists, evolutionary biologists, and those interested in animal behavior.

Conflict between males and females over reproduction is ubiquitous in nature due to fundamental differences between the sexes in reproductive rates and investment in offspring. In only a few species, however, do males strategically employ violence to control female sexuality. Why are so many of these primates? Why are females routinely abused in some species, but never in others? And can the study of such unpleasant behavior by our closest relatives help us to understand the evolution of men s violence against women?

In the first systematic attempt to assess and understand primate male aggression as an expression of sexual conflict, the contributors to this volume consider coercion in direct and indirect forms: direct, in overcoming female resistance to mating; indirect, in decreasing the chance the female will mate with other males. The book presents extensive field research and analysis to evaluate the form of sexual coercion in a range of species including all of the great apes and humans and to clarify its role in shaping social relationships among males, among females, and between the sexes.

Anthropometry is the measurement of human morphology. In this volume, distinguished contributors including anthropologists, human biologists, physiologists, nutritionists, and clinical scientists describe many of the ways in which anthropometry is used, and discuss problems associated with different methods of assessment. Topics include the measurement of growth asymmetry and variability in adult body size, measurement error and statistical issues in anthropometry and the construction and use of growth charts in growth monitoring. The use of anthropometry in assessments of body composition, physical performance and fitness is also discussed. The book will be of interest to graduates and researchers in human biology, anthropology and nutrition. It will also be useful to workers in sports medicine, ergonomics, orthopedics, and pediatrics.

At first sight just a small brown bird, the dunnock's unobtrusive appearance belies its extraordinary behaviour and mating patterns. In this book Nick Davies gives a full account of the mating systems of the dunnock or hedge sparrow, Prunella modularis, which include pairs, a male with two females, two males with one female, and several males with several females. Detailed observations, elegant field experiments, and DNA fingerprinting are combined to show how this variable social organization from selfish individuals competing to maximize their own reproductive success. Further experiments reveal how the cuckoo may thwart the dunnock's parental efforts. David Quinn's exquisite drawings provide a visual summary of the birds' behaviour. All students of ecology, evolution, and animal behaviour will want to be familiar with this work, which addresses the wider issues of the influence of ecology on mating systems and the evolutionary significance of conflict within and between species. This is the third volume in the Oxford Series in Ecology and Evolution, and the first in this series to tackly behavioural ecology. Nick Davies is a Lecturer in Zoology at the University of Cambridge and co-editor with J. R. Krebs of the leading text in the field, Behavioural ecology: an evolutionary approach.

One hundred years after Darwin considered how sexual selection shapes the behavioral and morphological characteristics of males for acquiring mates, Parker realized that sexual selection continues after mating through sperm competition. Because females often mate with multiple males before producing offspring, selection favors adaptations that allow males to preempt sperm from previous males and to prevent their own sperm from preemption by future males. Since the 1970s, this area of research has seen exponential growth, and biologists now recognize sperm competition as an evolutionary force that drives such adaptations as mate guarding, genital morphology, and ejaculate chemistry across all animal taxa. The insects have been critical to this research, and they still offer the greatest potential to reveal fully the evolutionary consequences of sperm competition.

This book analyzes and extends thirty years of theoretical and empirical work on insect sperm competition. It considers both male and female interests in sperm utilization and the sexual conflict that can arise when these differ. It covers the mechanics of sperm transfer and utilization, morphology, physiology, and behavior. Sperm competition is shown to have dramatic effects on adaptation in the context of reproduction as well as far-reaching ramifications on life-history evolution and speciation.

Written by a top researcher in the field, this comprehensive, up-to-date review of the evolutionary causes and consequences of sperm competition in the insects will prove an invaluable reference for students and established researchers in behavioral ecology and evolutionary biology.

The Trinidadian guppy ("Poecilia reticulata") is well known to biologists and home aquarium enthusiasts alike. Scientists have studied guppies for most of the twentieth century. Some of the most intensive recent research has been conducted by behavioral ecologists, who have found that the guppy mating system makes guppies especially useful in the study of sexual selection and mate choice. By observing guppy behavior in aquaria, researchers hope to obtain new insights into how selection operates in natural populations. Here Anne Houde summarizes and synthesizes the scientific work done to date, relates the empirical findings on guppies to current themes in sexual selection theory, and suggests new directions for future research.

This book describes the sexual behavior of guppies and examines how mate choice by females leads to the evolution of the conspicuous colors and the courtship displays for which guppies are widely recognized. The author shows that female guppies prefer males with bright color patterns, especially those with orange spots, and that the mating preferences of females lead to sexual selection on both color patterns and courtship displays of males. Houde's work addresses a number of areas that are of interest in sexual selection, including the remarkable degree of plasticity and evolutionary lability of sexual behavior in guppies, geographic variation in mating preferences, possible mechanisms for the evolution of female mating preferences, and the role of sexual selection in speciation. In conclusion, the author explores the implications of her findings for behavioral ecologists who study sexual selection in other species.

"Shuster and Wade place the study of animal mating systems and alternative mating strategies in a comprehensive theoretical framework. This framework is both elegantly simple and comprehensive. Most importantly they demonstrate with real life examples the utility of their approach and demonstrate that it can be tested empirically. It will serve as a benchmark for research in this area for many years to come."--Derek Roff, University of California, Riverside

"This ambitious and wide-ranging book offers new ways to look at sexual selection and its many consequences. Shuster and Wade have done the field a great service by challenging existing theory with respect to the evolution of mating systems and alternative mating strategies. Because they also provide the key predictions derived from their approach, they and others will be able to test their ideas even more fully in the years ahead. Let the fun begin. "--John Alcock, Arizona State University

"This important and original book addresses the issues that are attracting attention from a broad community studying the evolution of reproductive strategies. Its comprehensiveness and rigor give it the potential to influence a large field of research, and its personal perspective gives it the potential to redirect the field. The authors boldly challenge many current views of mating systems and alternative mating strategies. If they are correct, this book will likely become a landmark."--Mart Gross, University of Toronto

"This is an exceptional and thought provoking contribution to behavioral ecology. It uses excellent examples, slays some sacred cows, and is superbly written and often brilliant."--Barry Sinervo, University of California, Santa Cruz

Somatic genome manipulation is required when a sexual crossing approach cannot be used in breeding or genetic treatment of an individual organism. Examples can include gene- or cell-therapy of a person to correct disease, genetic improvement of vegetatively propagated plants, and genetic replacement of cytoplasm without significantly modifying the nuclear genome. The advantage of somatic genome manipulation is maintenance of the general genotype while correcting one or more traits. Somatic genome manipulation is also an option for genetic improvement of sexually propagated plants in polyploidy breeding or in overcoming issues of sexual incompatibility. Recent novel technologies in somatic genome manipulation are developing quickly but much of this literature is fragmented and difficult or inconvenient to access. This book represents the first attempt to assemble updated reviews, detailed protocols, and their applications in all fields in which somatic genome manipulation has thrived. This is a truely one-of-a-kind work that brings together the most important and relevant advances in somatic genome manipulation in plants, algae, microorganisms, humans and animals, and demonstrates where the science interacts and where it diverges. The chapters are written by experts on the topic with ready-to-use protocols that were originally developed or adapted from the literature in their laboratories. We expect that this book will be useful for students, researchers, and teachers in both plant and animal research as a resource for the latest information on somatic genome manipulation and for its useful laboratory methods.

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.

Books on bioinformatics which began appearing in the mid 80s primarily served gene-hunters, and biologists who wished to construct family trees showing tidy lines of descent. Given the great pharmaceutical industry interest in genes, this trend has continued in most subsequent texts. These deal extensively with the exciting topic of gene discovery and searching databases, but hardly consider genomes as information channels through which multiple forms and levels of information, including genic information, have passed through the generations.

Despite the widespread belief that natural is better when it comes to sex, pregnancy, and parenting, most of us have no idea what "natural" really means; the origins of our reproductive lives remain a mystery. Why are a quarter of a billion sperm cells needed to fertilize one egg? Are women really fertile for only a few days each month? How long should babies be breast-fed?
In "How We Do It," primatologist Robert Martin draws on forty years of research to locate the roots of everything from our sex cells to the way we care for newborns. He examines the procreative history of humans as well as that of our primate kin to reveal what's really natural when it comes to making and raising babies, and distinguish which behaviors we ought to continue--and which we should not. Although it's not realistic to raise our children like our ancestors did, Martin's investigation reveals surprising consequences of--and suggests ways to improve upon--the way we do things now. For instance, he explains why choosing a midwife rather than an obstetrician may have a greater impact than we think on our birthing experience, examines the advantages of breast-feeding for both mothers and babies, and suggests why babies may be ready for toilet training far earlier than is commonly practiced.
"How We Do It" offers much-needed context for our reproductive and child-rearing practices, and shows that once we understand our evolutionary past, we can consider what worked, what didn't, and what it all means for the future of our species.

If you had a complete copy of a dinosaur's DNA and the genetic code, you still would not be able to make a dinosaur--or even determine what one looked like. Why? How do animals get their shape and how does shape evolve? In this important book, Nobel laureate Gerald M. Edelman challenges the notion that an understanding of the genetic code and of cell differentiation is sufficient to answer these questions. Rather, he argues, a trio of related issues must also be investigated--the development of form, the evolution of form, and the morphological and functional bases of behavior. "Topobiology" presents an introduction to molecular embryology and describes a comprehensive hypothesis to account for the evolution and development of animal form.