The Tungara Frog

The Tungara Frog PDF Author: Michael J. Ryan
Publisher: University of Chicago Press
ISBN: 0226732290
Category : Nature
Languages : en
Pages : 246

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Book Description
In a Panamanian pond, male túngara frogs (Physalaemus pustulosus) gather in choruses, giving their "advertisement" call to the females that move among them. If a female chooses to make physical contact with a male, he will clasp her and eventually fertilize her eggs. But in vying for the females, the males whose calls are most attractive may also attract the interest of another creature: the fringe-lipped bat, a frog eater. In the Túngara Frog, the most detailed and informative single study available of frogs and their reproductive behavior, Michael J. Ryan demonstrates the interplay of sexual and natural selection. Using techniques from ethology, behavioral ecology, sensory physiology, physiological ecology, and theoretical population genetics in his research, Ryan shows that large males with low-frequency calls mate most successfully. He examines in detail a number of explanations for the females' preferences, and he considers possible evolutionary forces leading to the males' success. Though certain vocalizations allow males to obtain mates and thus should be favored by sexual selection, this study highlights two important costs of such sexual displays: the frogs expand considerable energy in their mating calls, and they advertise their whereabouts to predators. Ryan considers in detail how predators, especially the frige-lipped bat (Trachops cirrhosus), affect the evolution of the túngara frog's calls.

The Tungara Frog

The Tungara Frog PDF Author: Michael J. Ryan
Publisher: University of Chicago Press
ISBN: 0226732290
Category : Nature
Languages : en
Pages : 246

Get Book Here

Book Description
In a Panamanian pond, male túngara frogs (Physalaemus pustulosus) gather in choruses, giving their "advertisement" call to the females that move among them. If a female chooses to make physical contact with a male, he will clasp her and eventually fertilize her eggs. But in vying for the females, the males whose calls are most attractive may also attract the interest of another creature: the fringe-lipped bat, a frog eater. In the Túngara Frog, the most detailed and informative single study available of frogs and their reproductive behavior, Michael J. Ryan demonstrates the interplay of sexual and natural selection. Using techniques from ethology, behavioral ecology, sensory physiology, physiological ecology, and theoretical population genetics in his research, Ryan shows that large males with low-frequency calls mate most successfully. He examines in detail a number of explanations for the females' preferences, and he considers possible evolutionary forces leading to the males' success. Though certain vocalizations allow males to obtain mates and thus should be favored by sexual selection, this study highlights two important costs of such sexual displays: the frogs expand considerable energy in their mating calls, and they advertise their whereabouts to predators. Ryan considers in detail how predators, especially the frige-lipped bat (Trachops cirrhosus), affect the evolution of the túngara frog's calls.

The Book of Frogs

The Book of Frogs PDF Author: Tim Halliday
Publisher: University of Chicago Press
ISBN: 022618479X
Category : Science
Languages : en
Pages : 657

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Book Description
“A huge, beautiful compendium of 600 frogs from around the world, from the famed poison-arrow variety on up to the intriguingly named plaintive rain frog.” —Wired With over 7,000 known species, frogs display a stunning array of forms and behaviors. A single gram of the toxin produced by the skin of the Golden Poison Frog can kill 100,000 people. Male Darwin’s Frogs carry their tadpoles in their vocal sacs for sixty days before coughing them out into the world. The Wood Frogs of North America freeze every winter, reanimating in the spring from the glucose and urea that prevent cell collapse. The Book of Frogs commemorates the diversity and magnificence of all of these creatures, and many more. Six hundred of nature’s most fascinating frog species are displayed, with each entry including a distribution map, sketches of the frogs, species identification, natural history, and conservation status. Life-size color photos show the frogs at their actual size—including the colossal seven-pound Goliath Frog. Accessibly written by expert Tim Halliday and containing the most up-to-date information, The Book of Frogs will captivate both veteran researchers and amateur herpetologists. As frogs increasingly make headlines for their troubling worldwide decline, the importance of these fascinating creatures to their ecosystems remains underappreciated. The Book of Frogs brings readers face to face with six hundred astonishingly unique and irreplaceable species that display a diverse array of adaptations to habitats that are under threat of destruction throughout the world. “If you are a serious (and I mean serious) fan of the frog, you are in for a real treat.” —Boing Boing

Becoming Animal

Becoming Animal PDF Author: Nato Thompson
Publisher: MIT Press
ISBN: 0262201615
Category : Art
Languages : en
Pages : 144

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Book Description
Contemporary artists investigate the boundaries between animal and human in a world of transgenics and dissolving distinctions; with 65 color images of new works. In an age when scientists say they can no longer specify the exact difference between human and animal, living and dead, many contemporary artists have chosen to use animals in their work—as the ultimate "other," as metaphor, as reflection. The attempt to discover what is animal, not surprisingly, leads to a greater understanding of what it means to be human. In Becoming Animal, 12 internationally known artists investigate the shifting boundaries between animal and human. Their explorations may be a barometer of things to come. The works included in Becoming Animal—which accompanies an exhibit at MASS MoCA—range from the aviary and cabinet of curiosities of Mark Dion to the gun-toting bird collages of Michael Oatman. Nicolas Lampert's machine-animal collages and Jane Alexander's corpse-like humanoids suggest a new landscape of alienation. Rachel Berwick's investigation of the last Galapagos tortoise from the island of Pinto and Brian Conley's humanized mating call of the Tungara frog question the divide between human and animal communication. Patricia Piccinini imagines a bodyguard for a bird on the edge of extinction and Ann-Sofi Siden recreates the bedroom—and paranoia—of psychologist Alice Fabian. Natalie Jeremijenko presents another installment in her ongoing Ooz, reverse-engineering the zoo, and Kathy High's installation of "trans-animals" remembers lab rats who have given their lives for science. Sam Easterson's videos allow us to see from the viewpoint of an aardvark, a tarantula, a tumbleweed; Motohiko Odani's films show a surrealistic genetically modified bestiary. Becoming Animal documents these works with eye-popping full-color images, taking us on a visual journey through an unknown world.

The Behavior of Animals

The Behavior of Animals PDF Author: Johan J. Bolhuis
Publisher: John Wiley & Sons
ISBN: 1119109507
Category : Science
Languages : en
Pages : 532

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Book Description
The Behavior of Animals An updated view of animal behavior studies, featuring global experts The Behavior of Animals, Second Edition provides a broad overview of the current state of animal behavior studies with contributions from international experts. This edition includes new chapters on hormones and behavior, individuality, and human evolution. All chapters have been thoroughly revised and updated, and are supported by color illustrations, informative callouts, and accessible presentation of technical information. Provides an introduction to the study of animal behavior Looks at an extensive scope of topics- from perception, motivation and emotion, biological rhythms, and animal learning to animal cognition, communication, mate choice, and individuality. Explores the evolution of animal behavior including a critical evaluation of the assumption that human beings can be studied as if they were any other animal species. Students will benefit from an updated textbook in which a variety of contributors provide their expertise and global perspective in specialized areas

The Evolution of Beauty

The Evolution of Beauty PDF Author: Richard O. Prum
Publisher: Anchor
ISBN: 0385537220
Category : Science
Languages : en
Pages : 436

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Book Description
A FINALIST FOR THE PULITZER PRIZE NAMED A BEST BOOK OF THE YEAR BY THE NEW YORK TIMES BOOK REVIEW, SMITHSONIAN, AND WALL STREET JOURNAL A major reimagining of how evolutionary forces work, revealing how mating preferences—what Darwin termed "the taste for the beautiful"—create the extraordinary range of ornament in the animal world. In the great halls of science, dogma holds that Darwin's theory of natural selection explains every branch on the tree of life: which species thrive, which wither away to extinction, and what features each evolves. But can adaptation by natural selection really account for everything we see in nature? Yale University ornithologist Richard Prum—reviving Darwin's own views—thinks not. Deep in tropical jungles around the world are birds with a dizzying array of appearances and mating displays: Club-winged Manakins who sing with their wings, Great Argus Pheasants who dazzle prospective mates with a four-foot-wide cone of feathers covered in golden 3D spheres, Red-capped Manakins who moonwalk. In thirty years of fieldwork, Prum has seen numerous display traits that seem disconnected from, if not outright contrary to, selection for individual survival. To explain this, he dusts off Darwin's long-neglected theory of sexual selection in which the act of choosing a mate for purely aesthetic reasons—for the mere pleasure of it—is an independent engine of evolutionary change. Mate choice can drive ornamental traits from the constraints of adaptive evolution, allowing them to grow ever more elaborate. It also sets the stakes for sexual conflict, in which the sexual autonomy of the female evolves in response to male sexual control. Most crucially, this framework provides important insights into the evolution of human sexuality, particularly the ways in which female preferences have changed male bodies, and even maleness itself, through evolutionary time. The Evolution of Beauty presents a unique scientific vision for how nature's splendor contributes to a more complete understanding of evolution and of ourselves.

ANURAN COMMUNICATION

ANURAN COMMUNICATION PDF Author: RYAN MICHAEL J
Publisher: Smithsonian Books (DC)
ISBN:
Category : Nature
Languages : en
Pages : 274

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Book Description
In this volume, 25 scientists from around the world review the most recent advances in the study of how frogs and toads communicate. The contributors - who are experts in disciplines including animal behaviour, developmental biology, endocrinology, evolution, ecology and neurobiology - examine this amphibian order's vocal, visual and chemical signals, the physiology and energetics of their production, neural processing, related behaviours, and evolutionary implications. As the chapters demonstrate, research developments have led to further understanding of the role of the anuran larynx in sound production, how the anuran brain recognizes sound, and how both of these processes are influenced by the animal's physiological state. The contributors also discuss male-to-male call strategies as well as how female preferences for call variation contribute to sexual selection, speciation and hybridization. The text presents material about kin recognition abilities and the surprising range of visual displays by tropical anurans, and examines how the inherent structure of the auditory system might generate sensory biases that influence signal evolution.

Hearing and Sound Communication in Amphibians

Hearing and Sound Communication in Amphibians PDF Author: Peter M. Narins
Publisher: Springer Science & Business Media
ISBN: 0387477969
Category : Science
Languages : en
Pages : 376

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Book Description
This book is a compendium of the latest research on acoustic communication in these highly vocal vertebrates. The chapters are written by experts currently investigating the physiology and behavior of amphibians, in the laboratory and in the field. This integrated approach provides a neuroethologically-driven and evolutionary basis for our understanding of acoustic communication and its underlying mechanisms. The intended audience includes senior undergraduates, physiologists, zoologists, evolutionary biologists and communication specialists.

Predator and Prey: A Conversation in Verse

Predator and Prey: A Conversation in Verse PDF Author: Susannah Buhrman-Deever
Publisher: Candlewick Studio
ISBN: 0763695335
Category : Juvenile Nonfiction
Languages : en
Pages : 25

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Book Description
Who is the predator, and who is the prey? Illuminating poetry and vivid artwork capture the awe-inspiring ways that creatures use their resources to stay alive. Who wins, the assassin bug or the spider? The bat or the frog? The ant or the honey bee? The male firefly . . . or the female? The battle for survival between predator and prey is sometimes a fight, sometimes a dance, and often involves spying, lying, or even telling the truth to get ahead. Biologist and debut author Susannah Buhrman-Deever explores these clashes in poems and prose explanations that offer both sides of the story. With beautiful, realistic illustrations that are charged with drama, Bert Kitchen captures the breathtaking moments when predator meets prey. Readers who hunger for more about the art of survival will find an extensive list of references in the back.

Sexual Selection

Sexual Selection PDF Author: Malte Andersson
Publisher: Princeton University Press
ISBN: 0691207275
Category : Science
Languages : en
Pages : 621

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Book Description
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.

Animal Communication Networks

Animal Communication Networks PDF Author: P. K. McGregor
Publisher: Cambridge University Press
ISBN: 9781139443678
Category : Science
Languages : en
Pages : 682

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Book Description
Most animal communication has evolved and now takes place in the context of a communication network, i.e. several signallers and receivers within communication range of each other. This idea follows naturally from the observation that many signals travel further than the average spacing between animals. This is self evidently true for long-range signals, but at a high density the same is true for short-range signals (e.g. begging calls of nestling birds). This book provides a current summary of research on communication networks and appraises future prospects. It combines information from studies of several taxonomic groups (insects to people via fiddler crabs, fish, frogs, birds and mammals) and several signalling modalities (visual, acoustic and chemical signals). It also specifically addresses the many areas of interface between communication networks and other disciplines (from the evolution of human charitable behaviour to the psychophysics of signal perception, via social behaviour, physiology and mathematical models).