Oxford Reviews of Reproductive Biology

Oxford Reviews of Reproductive Biology PDF Author: Colin A. Finn
Publisher:
ISBN: 9780198576457
Category :
Languages : en
Pages :

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Book Description

Oxford Reviews of Reproductive Biology

Oxford Reviews of Reproductive Biology PDF Author: Colin A. Finn
Publisher:
ISBN: 9780198576457
Category :
Languages : en
Pages :

Get Book Here

Book Description


Reproduction in Mammals

Reproduction in Mammals PDF Author: Virginia Hayssen
Publisher: JHU Press
ISBN: 1421423154
Category : Nature
Languages : en
Pages : 369

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Book Description
"Newborn mammals can weigh as little as a dime or as much as a motorcycle. Some receive milk for only a few days, whereas others nurse for years. Humans typically have only one baby at a time following nine months of pregnancy, but other mammals have 20 or more young after only a few weeks in utero. What causes this incredible reproductive diversity? Reproduction in Mammals is a fascinating examination of the diverse reproductive strategies of a broad spectrum of mammals and the ways in which natural selection has influenced that diversity. While accounts of reproduction in individual taxa abound, this unique book's comprehensive coverage gathers stories from many taxa into a single, cohesive perspective that centers on the reproductive lives of females. The authors shed light on intriguing questions such as: Do bigger moms have bigger babies? Do primates have longer pregnancies than other groups? Do aquatic animals have particular patterns? Do carnivores like lions often produce larger litters than prey species? The book opens with the authors' definition of what constitutes a female perspective and an examination of the evolution of reproduction in mammals. It then outlines the individual female: her genetics, anatomy, and physiology. From this nuanced basis, the text progresses to mirror the female reproductive cycle and includes her interactions with males and offspring. The final section contextualizes the reproductive cycle within the rest of the world--both abiotic and biotic environments. To close, the authors include dedicated chapters on human concerns: conservation and women as mammals. Readers will come away from this thought-provoking book with an understanding not only of how reproduction fits into the lives of female mammals but also of how biology has affected the enormously diverse reproductive patterns of the phenotypes we observe today."-- Provided by publisher.

Evolutionary Parasitology

Evolutionary Parasitology PDF Author: Paul Schmid-Hempel
Publisher: Oxford University Press
ISBN: 0192568159
Category : Medical
Languages : en
Pages : 572

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Book Description
Parasites and infectious diseases are everywhere and represent some of the most potent forces shaping the natural world. They affect almost every aspect imaginable in the life of their hosts, even as far as the structure of entire ecosystems. Hosts, in turn, have evolved complex defences, with immune systems being among the most sophisticated processes known in nature. In response, parasites have again found ways to manipulate and exploit their hosts. Ever since life began, hosts and parasites have taken part in this relentless co-evolutionary struggle with far-reaching consequences for us all. Today, concepts borrowed from evolution, ecology, parasitology, and immunology have formed a new synthesis for the study of host-parasite interactions. Evolutionary parasitology builds on these established fields of scientific enquiry but also includes some of the most successful inter-disciplinary areas of modern biology such as evolutionary epidemiology and ecological immunology. The first edition of this innovative text quickly became the standard reference text for this new discipline. Since then, the field has progressed rapidly and an update is now required. This new edition has been thoroughly revised to provide a state-of-the-art overview, from the molecular bases to adaptive strategies and their ecological and evolutionary consequences. It includes completely new material on topics such as microbiota, evolutionary genomics, phylodynamics, within-host evolution, epidemiology, disease spaces, and emergent diseases. Evolutionary Parasitology is suitable for advanced undergraduates, graduate level students, and interdisciplinary researchers from a variety of fields including immunology, genetics, sexual selection, population ecology, behavioural ecology, epidemiology, and evolutionary biology. Those studying and working in adjacent fields such as conservation biology, virology, medicine, and public health will also find it an invaluable resource for connecting to the bases of their science.

Mechanisms of Hormone Action

Mechanisms of Hormone Action PDF Author: P Karlson
Publisher: Elsevier
ISBN: 1483267628
Category : Medical
Languages : en
Pages : 288

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Book Description
Mechanisms of Hormone Action: A NATO Advanced Study Institute focuses on the action mechanisms of hormones, including regulation of proteins, hormone actions, and biosynthesis. The selection first offers information on hormone action at the cell membrane and a new approach to the structure of polypeptides and proteins in biological systems, such as the membranes of cells. Discussions focus on the cell membrane as a possible locus for the hormone receptor; gaps in understanding of the molecular organization of the cell membrane; and a possible model of hormone action at the membrane level. The text also ponders on insulin and regulation of protein biosynthesis, including insulin and protein biosynthesis, insulin and nucleic acid metabolism, and proposal as to the mode of action of insulin in stimulating protein synthesis. The publication elaborates on the action of a neurohypophysial hormone in an elasmobranch fish; the effect of ecdysone on gene activity patterns in giant chromosomes; and action of ecdysone on RNA and protein metabolism in the blowfly, Calliphora erythrocephala. Topics include nature of the enzyme induction, ecdysone and RNA metabolism, and nature of the epidermis nuclear RNA fractions isolated by the Georgiev method. The selection is a valuable reference for readers interested in the mechanisms of hormone action.

Fertility and Pregnancy

Fertility and Pregnancy PDF Author: Allen J. Wilcox
Publisher: Oxford University Press
ISBN: 0195342860
Category : Medical
Languages : en
Pages : 337

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Book Description
Fertility and Pregnancy: An Epidemiologic Perspective, is a lively overview of human reproduction: how it works, and what causes it to go wrong. Weaving together history, biology, obstetrics, pediatrics, demography, infectious diseases, molecular genetics, and evolutionary biology, Allen Wilcox brings a fresh coherence to the epidemiologic study of reproduction and pregnancy. Along the way, he provides entertaining anecdotes, superb graphs, odd tidbits and occasional humor that bring the topic to life.The book is divided into two sections. The first lays the foundations - the basic principles of reproductive physiology, demography, infectious diseases, and genetics as they apply to human reproduction. The second part deals with the endpoints of reproductive epidemiology - a spectrum ranging from infertility and fetal loss to birth defects and the delayed effects of fetal exposures. The book closes with a discussion of unsolved problems, suggesting possible research projects for a new generation of epidemiologists. An extensive glossary makes this a valuable reference as well as an enjoyable read.

How We Do It

How We Do It PDF Author: Robert Martin
Publisher: Basic Books (AZ)
ISBN: 0465030157
Category : Science
Languages : en
Pages : 322

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Book Description
A primatologist explores the mystery of the origins of human reproduction, explaining that understanding the evolutionary past can provide insight into what worked, what didn't, and what it all means for the future of mankind.

Walter Heape, F.R.S.

Walter Heape, F.R.S. PDF Author: Carol Kountz
Publisher:
ISBN: 9780997599008
Category : Biography & Autobiography
Languages : en
Pages : 296

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Book Description
Walter Heape never earned a university degree, but after a world voyage he left the family business to train in embryology at Trinity College, Cambridge, and work alongside many great scientists of the late Victorian Age, including Francis Balfour, William Bateson, Michael Foster, James Frazer, Francis Galton, Thomas Huxley, E. Ray Lankester and Anton Dohrn. His entrepreneurial spirit embraced the unfolding revolutions in genetics and endocrinology, and breakthroughs in animal breeding technology and fertility treatment for patients were foreshadowed by his contributions to reproductive biology. He did not, however, always enjoy a smooth ride as a researcher and science administrator, but a background in business helped him to survive the political fray to leave a scientific legacy that deserves to be celebrated.JOHN D. BIGGERS, Ph.D., D.Sc. has worked in the field of reproductive biology from 1950 and at Harvard Medical School from 1971 where he is now Emeritus Professor of Cell Biology. CAROL KOUNTZ, Ph.D. is Associate Professor Emerita of Writing, Grand Valley State University, Allendale, Michigan.

Plant Reproductive Ecology : Patterns and Strategies

Plant Reproductive Ecology : Patterns and Strategies PDF Author: Jon and Lesley Lovett-Doust Professor of Biology the University of Windsor
Publisher: Oxford University Press, USA
ISBN: 0198021925
Category : Science
Languages : en
Pages : 362

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Book Description
This collection of reviews by leading investigators examines plant reproduction and sexuality within a framework of evolutionary ecology, providing an up-to-date account of the field. The contributors discuss conceptual issues, showing the importance of sex allocation, sexual selection and inclusive fitness, and the dimensions of paternity and maternity in plants. The evolution, maintenance, and loss of self-incompatibility in plants, the nature of 'sex choice' in plants, and sex dimorphism are all explored in detail. Specific forms of biotic interactions shaping the evolution of plant reproductive strategy are discussed, and a taxonomically based review of the reproductive ecology of non-angiosperm plant groups, such as bryophytes, ferns, and algae, is presented. Together these studies focus on the complexities of plant life cycles and the distinctive reproductive biologies of these organisms, while showing the similarities between nonflowering plants and the more thoroughly documented flowering species.

Oxford Reviews of Reproductive Biology (majalah).

Oxford Reviews of Reproductive Biology (majalah). PDF Author: C. A. Finn
Publisher:
ISBN:
Category : Reproduction
Languages : en
Pages :

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Book Description


The Evolution of Sex Determination

The Evolution of Sex Determination PDF Author: Leo Beukeboom
Publisher: OUP Oxford
ISBN: 0191631396
Category : Science
Languages : en
Pages : 243

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Book Description
Sexual reproduction is a fundamental aspect of life. It is defined by the occurrence of meiosis and the fusion of two gametes of different sexes or mating types. Sex-determination mechanisms are responsible for the sexual fate and development of sexual characteristics in an organism, be it a unicellular alga, a plant, or an animal. In many cases, sex determination is genetic: males and females have different alleles or different genes that specify their sexual morphology. In animals, this is often accompanied by chromosomal differences. In other cases, sex may be determined by environmental (e.g. temperature) or social variables (e.g. the size of an organism relative to other members of its population). Surprisingly, sex-determination mechanisms are not evolutionarily conserved but are bewilderingly diverse and appear to have had rapid turnover rates during evolution. Evolutionary biologists continue to seek a solution to this conundrum. What drives the surprising dynamics of such a fundamental process that always leads to the same outcome: two sex types, male and female? The answer is complex but the ongoing genomic revolution has already greatly increased our knowledge of sex-determination systems and sex chromosomes in recent years. This novel book presents and synthesizes our current understanding, and clearly shows that sex-determination evolution will remain a dynamic field of future research. The Evolution of Sex Determination is an advanced, research level text suitable for graduate students and researchers in genetics, developmental biology, and evolution.