Reproductive value (social psychology) — Reproductive value (RV) is a term used in social psychology to describe the level of attractiveness of women. The reproduction value theory introduces a mechanism that men unintentionally use when searching for a partner. The level of the RV is… … Wikipedia
Reproductive value (population genetics) — Fisher s reproductive value was defined by R. A. Fisher in his 1930 book The Genetical Theory of Natural Selection as the expected reproduction of an individual from their current age onward, given that they have survived to their current age. It … Wikipedia
reproductive behaviour — In animals, any activity directed toward perpetuation of a species. Sexual reproduction, the most common mode, occurs when a female s egg is fertilized by a male s sperm. The resulting unique combination of genes produces genetic variety that… … Universalium
Fisher's principle — explains why the sex ratio of most species is approximately 1:1. It was famously outlined by R.A. Fisher in his his 1930 book The Genetical Theory of Natural Selection (but incorrectly attributed to Fisher as original). Nevertheless, A.W.F.… … Wikipedia
Senescence — refers to the biological processes of a living organism approaching an advanced age (i.e., the combination of processes of deterioration which follow the period of development of an organism). The word senescence is derived from the Latin word… … Wikipedia
Memetics — This article is related to the study of self replicating units of culture, not to be confused with mimetics. Memetics is a theory of mental content based on an analogy with Darwinian evolution, originating from Richard Dawkins 1976 book The… … Wikipedia
genetic drift — random changes in the frequency of alleles in a gene pool, usually of small populations. Cf. gene flow. [1955 60] * * * Change in the pool of genes of a small population that takes place strictly by chance. Genetic drift can result in genetic… … Universalium
Competition spermatique — Compétition spermatique Introduite pour la première fois par Geoff Parker en 1970[1], la compétition spermatique (ou concurrence spermatique) correspond à la compétition entre les éjaculats de différents mâles pour la fertilisation d’un set donné … Wikipédia en Français
Compétition Spermatique — Introduite pour la première fois par Geoff Parker en 1970[1], la compétition spermatique (ou concurrence spermatique) correspond à la compétition entre les éjaculats de différents mâles pour la fertilisation d’un set donné d’ovocytes. Pour se… … Wikipédia en Français
Concurrence spermatique — Compétition spermatique Introduite pour la première fois par Geoff Parker en 1970[1], la compétition spermatique (ou concurrence spermatique) correspond à la compétition entre les éjaculats de différents mâles pour la fertilisation d’un set donné … Wikipédia en Français