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ARENA BIRDS

ARENA BIRDS
Author: Paul A. Johnsgard
Publisher: Smithsonian
Total Pages: 0
Release: 1994-04-17
Genre: Birds
ISBN: 9781560983156

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In 1871, more than a decade after he unveiled the Origin of Species, Charles Darwin laid out the principles of sexual selection. He suggested that alongside the traits that enable species to survive are those that confer sexual advantage on individuals within the species and thus insure greater transmission to offspring of those individuals' genes. Focusing on some of the most resplendent birds in the avian class - among them ducks, pheasants, grouse, manakins, whydahs, and birds-of-paradise - Paul Johnsgard describes sexual selection in arena-breeding birds, species and groups whose males gather for competitive sexual display in open spaces called arenas or leks. Johnsgard explains Darwin's theory that selection works on the basis of either male dominance - a male wins access to females by bettering his peers - or female choice, in which females survey the field of males and select the most prized mate. Summarizing a vast body of literature, Johnsgard reviews the many elaborations and implications of these theories, such as whether a male most attractive to females is also the most fit for survival (a question of "truth in advertising"). He details for several species and groups the components of mating behavior, including male plumages, strutting, and distinctive calling - sometimes audible over a kilometer away. Arena Birds encompasses those birds that exhibit arena or near-arena behavior, as well as those that build bowers for reproductive signaling purposes. Including a glossary of terms, this book will serve as a basic reference for ornithologists and fascinating reading for anyone interested in sexual relations in the animal kingdom.


Sex, Size and Gender Roles

Sex, Size and Gender Roles
Author: Daphne J. Fairbairn
Publisher: OUP Oxford
Total Pages: 280
Release: 2007-07-05
Genre: Science
ISBN: 0191526088

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Why do males and females frequently differ so markedly in body size and morphology?lSex, Size, and Gender Roles is the first book to investigate the genetic, developmental, and physiological basis of sexual size dimorphism found within and among the major taxonomic groups of animals. Carefully edited by a team of world-renowned specialists in the field to ensure a coherence of style and approach between chapters, it presents a compendium of studies into the evolution, adaptive significance, and developmental basis of gender differences in body size and morphology. Adaptive hypotheses allude to gender-specific reproductive roles and associated differences in trophic ecologies, life history strategies, and sexual selection. This "adaptationist" approach is balanced by more mechanistic studies of the genetic, developmental and physiological basis of sexual size dimorphism to provide a comprehensive and authoritative overview of the subject. Throughout the volume the emphasis is on sexual dimorphism in overall size; however, the scope of enquiry encompasses gender differences in body shape, the size and structure of secondary sexual characteristics, patterns of growth (ontogeny), and patterns of gene regulation. This advanced, research level text is suitable for graduate level students and researchers in the fields of evolutionary biology, behavioural ecology, physiology, developmental biology, and genetics. It will also be of relevance and use to non-biologists from fields such as anthropology and gender studies.


Polygyny and Sexual Selection in Red-Winged Blackbirds

Polygyny and Sexual Selection in Red-Winged Blackbirds
Author: William A. Searcy
Publisher: Princeton University Press
Total Pages: 331
Release: 2014-07-14
Genre: Science
ISBN: 1400863937

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The purpose of this book is to explain why red-winged blackbirds are polygynous and to describe the effects of this mating system on other aspects of the biology of the species. Polygyny is a mating system in which individual males form long-term mating relationships with more than one female at a time. The authors show that females choose to mate polygynously because there is little cost to sharing male parental care in this species, and because females gain protection against nest predation by nesting near other females. Polygyny has the effect of intensifying sexual selection on males by increasing the variance in mating success among males. For females, polygyny means that they will often share a male's territory with other females during the breeding season and will thus be forced to adapt to frequent female-female interactions. This work reviews the results of many studies by other researchers, as well as presenting the authors' own results. Studies of red-winged blackbirds have ranged from long-term investigations of reproductive success and demography, to research on genetic parentage based on modern molecular methods, to a variety of experimental manipulations of ecological circumstances and behavior. Since the red-winged blackbird is one of the best studied species of any taxa in terms of its behavior and ecology, the authors have a particularly extensive body of results on which to base their conclusions. Originally published in 1995. 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 editions preserve the original texts of these important books while presenting them in durable paperback and hardcover 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.


Reproductive Biology and Phylogeny of Birds, Part B: Sexual Selection, Behavior, Conservation, Embryology and Genetics

Reproductive Biology and Phylogeny of Birds, Part B: Sexual Selection, Behavior, Conservation, Embryology and Genetics
Author: Barrie G M Jamieson
Publisher: CRC Press
Total Pages: 543
Release: 2007-01-02
Genre: Science
ISBN: 1482280515

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The second part of volume 6 discusses sexual selection of ultraviolet and structural signals; melanins and carotenoids as feather colorants and signals; sexual selection and auditory signaling; odors and chemical signaling; sexual dimorphism; sexual selection, signal selection and the handicap principle; courtship and copulation; sexual conflict an


Sexual Selection

Sexual Selection
Author: Malte Andersson
Publisher: Princeton University Press
Total Pages:
Release: 2019-12-31
Genre: Science
ISBN: 0691207275

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Bright colors, enlarged fins, feather plumes, song, horns, antlers, and tusks are often highly sex dimorphic. Why have males in many animals evolved more conspicuous ornaments, signals, and weapons than females? How can such traits evolve although they may reduce male survival? Such questions prompted Darwin's perhaps most scientifically controversial idea--the theory of sexual selection. It still challenges researchers today as they try to understand how competition for mates can favor the variety of sex-dimorphic traits. Reviewing theoretical and empirical work in this very active field, Malte Andersson, a leading contributor himself, provides a major up-to-date synthesis of sexual selection. The author describes the theory and its recent development; examines models, methods, and empirical tests; and identifies many unsolved problems. Among the topics discussed are the selection and evolution of mating preferences; relations between sexual selection and speciation; constraints on sexual selection; and sex differences in signals, body size, and weapons. The rapidly growing study of sexual selection in plants is also reviewed. This volume will interest students, teachers, and researchers in behavioral ecology and evolutionary biology.


Sexual Selection

Sexual Selection
Author: Regina H. Macedo
Publisher: Academic Press
Total Pages: 479
Release: 2013-09-25
Genre: Technology & Engineering
ISBN: 0123914566

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Sexual Selection: Perspectives and Models from the Neotropics presents new sexual selection research based upon neotropical species. As neotropical regions are destroyed at an alarming rate, with an estimated 140 species of rainforest plants and animals going extinct every day, it is important to bring neotropical research to the fore now. Sexual selection occurs when the male or female of a species is attracted by certain characteristics such as form, color or behavior. When those features lead to a greater probability of successful mating, they become more prominent in the species. Although most theoretical concepts concerning sexual selection and reproductive strategies are based upon North American and European fauna, the Neotropical region encompasses much more biodiversity, with as many as 15,000 plant and animal species in a single acre of rain forest. This book illustrates concepts in sexual selection through themes ranging from female cryptic choice in insects, sexual conflict in fish, interaction between sexual selection and the immune system, nuptial gifts, visual and acoustic sexual signaling, parental investment, to alternative mating strategies, among others. These approaches distinguish Sexual Selection from current publications in sexual selection, mainly because of the latitudinal and taxonomic focus, so that readers will be introduced to systems mostly unknown outside the tropics, several of which bring into question some well-established patterns for temperate regions. Synthesizes sexual selection research on species from the Neotropics Combines different perspectives and levels of analysis using a broad taxonomic basis, introducing readers to systems mostly unknown outside the tropics and bringing into question well-established patterns for temperate regions Includes contributions exploring concepts and theory as well as discussions on a variety of Neotropical vertebrates and invertebrates, such as insects, fish, arthropods and birds


The Evolution of Avian Breeding Systems

The Evolution of Avian Breeding Systems
Author: J. David Ligon
Publisher:
Total Pages: 536
Release: 1999
Genre: Science
ISBN:

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Ever since Darwin, birds have provided much of the stimulus for the study of evolution and natural selection. This volume in the Oxford Ornithology Series looks at three of the most fascinating aspects of their reproductive biology: sexual selection, parental care, and mating systems. It provides empirical assessments of the main theories of mate choice by females and includes numerous related topics such as the role of sexual selection in speciation. It examines the often extreme sexual dimorphism in plumage and the bewildering array of ornamentation and courtship displays. Although most avian species are socially monogamous, others exhibit polygyny or polyandry of various forms, and the book looks at the effects of these extra-pair copulations on paternity and on the evolution of mating systems. Throughout the book the various theories are illustrated with extensive examples drawn a wide range of species, making it a valuable resource for all ornithologists and student of animal behavior.


Sexual Selection and the Barn Swallow

Sexual Selection and the Barn Swallow
Author: Anders Pape Møller
Publisher: Oxford University Press on Demand
Total Pages: 365
Release: 1994
Genre: Nature
ISBN: 9780198540281

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An important empirical test of the theoretical predictions of sexual selection theory, this book presents a long-term field study of the monagamous barn swallow. By using information on behaviour, ecology, morphology, genetics, and evolution, the book reviews this theory and its twocomponents: male-male competition and female choice.The selective advantages of a long tail are investigated for this common bird, demonstrating such effects as mating behaviour, copulation behaviour, migration strategies, and host-parasite interactions.A rich informative text which clearly elucidates the mechanisms and consequences of sexual selection.