Choosing Sexes

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Choosing Sexes

Mechanisms and Adaptive Patterns of Sex Allocation in Vertebrates

By:

Kristen J. Navara

Format:

Hardback

Series:

Fascinating Life Sciences

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Description

There is extensive evidence that vertebrates of all classes have the ability to control the sexes of the offspring they produce. Despite dramatic differences in the mechanisms by which different taxa determine the initial sex of offspring, each group has found its own way of adjusting offspring sex ratios in response to social and environmental cues. For example, stress is a well-known modulator of offspring sex in members of all groups studied to date. Food availability, and limitation in particular, is another common cue that stimulates biases in offspring sex ratios in a wide variety of species. Offspring sex can be adjusted at the primary level, which occurs prior to conception, or at the secondary level, during embryonic development. While the mechanistic pathways that ultimately result in sex ratio biases and the developmental time-points sensitive to those mechanisms likely differ among taxa, the key involvement of steroid hormones in the process of sex ratio adjustmentappears to be pervasive throughout. This book reviews the systems of sex determination at play in different vertebrate groups, summarizes the evidence that members of all vertebrate taxa can facultatively adjust offspring sex, and discusses when and how these adjustments can take place.

Author Biography:

Kristen J. Navara Associate Professor & Graduate Coordinator Department of Poultry Science The University of Georgia Athens, Georgia, USA Education Postdoctoral Fellow, The Ohio State University Ph.D, Biological Sciences, Auburn University B.S. Biology, The Pennsylvania State University Research Interests Sex ratio manipulation and ovarian follicular dynamics in female birds, Mechanistic bases of yolk androgen deposition, links between maternal immunity and the manipulation of offspring phenotype

Release date NZ

February 12th, 2018

Author

Kristen J. Navara

Audience

Postgraduate, Research & Scholarly

Edition

1st ed. 2018

Illustrations

61 Illustrations, color; 10 Illustrations, black and white; XII, 240 p. 71 illus., 61 illus. in color.

Pages

240

Series

Fascinating Life Sciences

ISBN-13

9783319712697

Product ID

27237247

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Choosing Sexes

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