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Books > Science & Mathematics > Biology, life sciences > Zoology & animal sciences > Vertebrates > Amphibians

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Tungara Frog - A Study in Sexual Selection and Communication (Paperback) Loot Price: R721
Discovery Miles 7 210
Tungara Frog - A Study in Sexual Selection and Communication (Paperback): Michael J. Ryan

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Tungara Frog - A Study in Sexual Selection and Communication (Paperback)

Michael J. Ryan

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Loot Price R721 Discovery Miles 7 210 | Repayment Terms: R67 pm x 12*

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In a Panamanian pond, male tungara 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 "Tungara 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 tungara frog's calls."

General

Imprint: University of Chicago Press
Country of origin: United States
Release date: 2010
First published: September 1992
Authors: Michael J. Ryan
Dimensions: 230 x 150 x 14mm (L x W x T)
Format: Paperback
Pages: 224
ISBN-13: 978-0-226-73229-9
Categories: Books > Science & Mathematics > Biology, life sciences
Books > Science & Mathematics > Biology, life sciences > Zoology & animal sciences
Books > Science & Mathematics > Biology, life sciences > Zoology & animal sciences > Vertebrates
Books > Science & Mathematics > Biology, life sciences > Zoology & animal sciences > Vertebrates > Amphibians
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LSN: 0-226-73229-0
Barcode: 9780226732299

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