Last edited by Najas
Thursday, July 30, 2020 | History

2 edition of Human sperm competition found in the catalog.

Human sperm competition

R. Robin Baker

Human sperm competition

ejaculate manipulation by females and a function for the female orgasm.

by R. Robin Baker

  • 210 Want to read
  • 12 Currently reading

Published .
Written in English


Edition Notes

Taken from Animal behaviour, vol.46, 1993, pp.887-909.

SeriesAnimal behaviour -- v.46
ID Numbers
Open LibraryOL21652919M

  But others argue that human sperm is of low quality for exactly the same reason as is a gorilla's -- the general lack of competition. Into . But until Human Sperm Competition there had never been a discussion of the phenomenon for the human species in book form, despite its relevance for a full understanding of human reproduction._xD_ The book is a pioneering analysis of the evolutionary biology of human sexuality, proposing that all aspects have been shaped by the phenomenon of Price: $

  As sperm competition comes to light as yet another facet of sexual adaptation, it raises the question of how many other ways have humans evolved in a . Human Sperm Competition: Copulation, Masturbation and Infidelity by Baker, R Robin; Bellis, Mark A. and a great selection of related books, art and .

Get this from a library! Sperm competition in humans: classic and contemporary readings. [Todd K Shackelford; Nicholas Pound;] -- Over the past decade, there has been a vast amount of interest in the subject of human sperm competition. This volume brings together, in one place, a key set of classic and contemporary papers that.   Introduction. In species where females mate with multiple males, the sperm of two or more males must compete to fertilise available ion from sperm competition is expected to favor opposing adaptations that function either in the avoidance of or engagement in sperm competition,.Adaptations for the avoidance of sperm competition can include the use Cited by:


Share this book
You might also like
Sinners twain

Sinners twain

invincible advance

invincible advance

Upper Hiwassee

Upper Hiwassee

Our Family Prayer

Our Family Prayer

myth of the aumbry

myth of the aumbry

Songs from the dramatists

Songs from the dramatists

Occupational health nursing

Occupational health nursing

Encyclopedia of right-wing extremism in modern American history

Encyclopedia of right-wing extremism in modern American history

British impact on India

British impact on India

Comrades and Capitalists

Comrades and Capitalists

Beta blockers

Beta blockers

The practice of ritual magic

The practice of ritual magic

Shakespeare and the idea of the play

Shakespeare and the idea of the play

New Castle County

New Castle County

Rise and fall of the Coorg State

Rise and fall of the Coorg State

Human sperm competition by R. Robin Baker Download PDF EPUB FB2

This book discusses these implications for human sexual behaviour and human infertility problems. Throughout the book, reference is made to work on the sexual Behavioural ecologists and evolutionary biologists have for a number of years been interested in the biological implications of sperm from different males competing for fertilization of /5.

Sperm competition occurs when a female copulates with two or more males within a sufficiently brief time period, resulting in the sperm of the different males competing to fertilize ova.

The book is a pioneering analysis of the evolutionary biology of human sexuality, proposing that all aspects have been shaped by the phenomenon of sperm competition. Written 20 years ago inthe print edition was published in Sperm competition is a form of post-copulatory sexual selection whereby male ejaculates simultaneously physically compete to fertilize a single ovum.

Sperm competition occurs between sperm from two or more rival males when they make an attempt to fertilize a female within a sufficiently short period of time.

This results primarily as a consequence of polyandrous mating. Since the s, behavioural ecologists and evolutionary biologists have been fascinated by the biological implications of sperm from different males competing for fertilization of the egg in the female reproductive tract.

But until Human Sperm Competition there. Behavioural ecologists and evolutionary biologists have long been interested in the biological implications of sperm from different males competing for fertilization of the egg in the female tract.

This book discusses these implications for human. The penis evolved as an internal fertilization device. There are, however, striking differences in penis morphology between different species (see Birkhead, ).In addition to the ostensible impact of female choice on the evolution of more elaborate male genitalia (Eberhard, ), there is reason to believe that sperm competition played a role in shaping the human Cited by: Human sperm competition occurs when a woman ―double-mates‖ or copulates with two or more men within about five days (sperm remain alive in the female reproductive tract for about five days; Baker & Bellis, ).Cited by: But until Human Sperm Competition there had never been a discussion of the phenomenon for the human species in book form, despite its relevance for a full understanding of human reproduction.

The book is a pioneering analysis of the evolutionary biology of human sexuality, proposing that all aspects have been shaped by the phenomenon of sperm 5/5. Sperm competition is the competitive process between spermatozoa of two or more different males to fertilize the same egg during sexual ition can occur when females have multiple potential mating partners.

Greater choice and variety of mates increases a female's chance to produce more viable offspring. However, multiple mates for a female means each.

In book: Encyclopedia of Evolutionary Psychological Science (pp) and behavioral adaptations to human sperm competition provides compelling evidence.

Human sperm competition: ejaculate manipulation by females and a function for the female orgasm Sperm from one copulation appeared to hinder the retention of sperm at the next copulation for up to 8 days.

The efficiency of the block declined with time after copulation but was fixed at its current level by an inter-copulatory orgasm which Cited by: But until Human Sperm Competition there had never been a discussion of the phenomenon for the human species in book form, despite its relevance for a full understanding of human reproduction.

The book is a pioneering analysis of the evolutionary biology of human sexuality, proposing that all aspects have been shaped by the phenomenon of sperm. Behavioural ecologists and evolutionary biologists have long been interested in the biological implications of sperm from different males competing for fertilization of the egg in the female tract.

This book discusses these implications for human 4/5(1). An incisive review of the Baker and Bellis book Human Sperm Competition by Roger Short made the telling point that relatively rare large-headed sperms in human ejaculates have a.

Sperm Competition and the Evolution of Animal Mating Systems describes the role of sperm competition in selection on a range of attributes from gamete morphology to species mating systems.

This book is organized into 19 chapters and begins with the conceptualization of sperm competition as a subset of sexual selection and its implications for the s: 1. The book is a pioneering analysis of the evolutionary biology of human sexuality, proposing that all aspects have been shaped by the phenomenon of sperm competition.

Despite being written inthe book’s contents are as relevant now as they were two decades ago. The book is a pioneering analysis of the behavioural ecology of human sexuality, proposing that all aspects have been shaped by the phenomenon of sperm competition. In the first half of the book the authors explore the role of sperm competition in the evolution of human sexual characteristics, considering for example the architecture of the.

You final choice is Leigh Simmons book on sperm competition in insects. Since Geoff Parker’s work on dung flies, the study of sperm competition in insects has gone from strength to strength. Leigh Simmons was one of Geoff’s students and wrote this book in The title is the same as Geoff’s paper on the subject.

Behavioural ecologists and evolutionary biologists have long been intereste d in the biological implications of sperm from different males competing fo r fertilization of the egg in the female tract. This book discusses these i mplications for human.

Indeed, judged on size alone, human testes are apparently adapted for a one-male mating system without notable sperm competition between men. Human testes .Over the past decade, there has been a vast amount of interest in the subject of human sperm competition. This volume brings together, in one place, a key set of classic and contemporary papers that have examined possible adaptations to sperm competition in humans.Sperm Competition and the Evolution of Animal Mating Systems describes the role of sperm competition in selection on a range of attributes from gamete morphology to species mating systems.

This book is organized into 19 chapters and begins with the conceptualization of sperm competition as a subset of sexual selection and its implications for.