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Titre du document / Document title

Human sperm competition : ejaculate manipulation by females and a function for the female orgasm

Auteur(s) / Author(s)

BAKER R. R. ; BELLIS M. A. ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

Univ. Manchester, dep. environmental biology, Manchester M13 9PL, ROYAUME-UNI

Résumé / Abstract

Behavioural ecologists view monogamy as a subtle mixture of conflict and cooperation between the sexes. In part, conflict and cooperation is cryptic, taking place within the female's reproductive tract. In this paper the cryptic interaction for humans was analysed using data from both a nationwide survey and counts of sperm inseminated into, and ejected by, females. On average, 35% of sperm were ejected by the female within 30 min of insemination. The occurrence and timing of female orgasm in relation to copulation and male ejaculation influenced the number of sperm retained at both the current and next copulation. Orgasms that climaxed at any time between 1 min before the male ejaculated up to 45 min after led to a high level of sperm retention

Revue / Journal Title

Animal behaviour    ISSN  0003-3472   CODEN ANBEA8 

Source / Source

1993, vol. 46 (5), pp. 887-909 (1 p.)

Langue / Language

Anglais

Editeur / Publisher

Elsevier, Amsterdam, PAYS-BAS  (1958) (Revue)

Mots-clés anglais / English Keywords

Mating

;

Ejaculatio

;

Intraspecific competition

;

Orgasm

;

Strategy

;

Extra pair copulation

;

Sexual intercourse

;

Population survey

;

Human

;

Female

;

Sperm competition

;

Sexual behavior

;

Breeding behavior

;

Mots-clés français / French Keywords

Copulation

;

Ejaculation

;

Compétition intraspécifique

;

Orgasme

;

Stratégie

;

Copulation hors couple

;

Relation sexuelle

;

Surveillance population

;

Homme

;

Femelle

;

Rétention sperme

;

Compétition spermatique

;

Comportement sexuel

;

Comportement reproducteur

;

Mots-clés espagnols / Spanish Keywords

Copulación

;

Eyaculación

;

Competencia intraespecífica

;

Orgasmo

;

Estrategia

;

Cópula extra pareja

;

Relación sexual

;

Vigilancia población

;

Hombre

;

Hembra

;

Conducta sexual

;

Conducta reproductora

;

Localisation / Location

INIST-CNRS, Cote INIST : 7067, 35400002596519.0040

Nº notice refdoc (ud4) : 3768816



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