postcopulatory
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Sperm competition — is competition between sperm of two or more males for the fertilization of an ovum (Parker 1970). Sperm competition is often compared to having tickets in a raffle; a male has a better chance of winning (i.e. fathering offspring) the more tickets … Wikipedia
Compétition spermatique — Dans la nature, l’apparente extravagance des traits arborés par les mâles de certaines espèces, et leur sous jacent impact sur leur survie, inspira Darwin[1] dans le développement de la théorie de la sélection sexuelle. Un siècle plus tard, les… … Wikipédia en Français
Northern Pintail — Male and female (left right) … Wikipedia
Green-winged Teal — male A pair, male in nuptial plumage at rear … Wikipedia
Anas — Taxobox name = Anas image width = 250px image caption = Female Mallard ( Anas platyrhynchos ) with brood of young, a typical member of this genus. regnum = Animalia phylum = Chordata classis = Aves subclassis = Neornithes infraclassis =… … Wikipedia
Baikal Teal — Taxobox name = Baikal Teal status = VU | status system = IUCN3.1 trend = down image width = 240px image caption = An adult Baikal Teal drake. regnum = Animalia phylum = Chordata classis = Aves ordo = Anseriformes familia = Anatidae genus = Anas… … Wikipedia
Speckled Teal — Taxobox name = Speckled Teal Andean Teal image width = 240px status = LC status system = IUCN3.1 image caption = Sharp winged Teal, A. f. oxyptera regnum = Animalia phylum = Chordata classis = Aves ordo = Anseriformes familia = Anatidae genus =… … Wikipedia
African Black Duck — Taxobox name = African Black Duck status = LC | status system = IUCN3.1 regnum = Animalia phylum = Chordata classis = Aves ordo = Anseriformes familia = Anatidae genus = Anas species = A. sparsa binomial = Anas sparsa binomial authority = Eyton,… … Wikipedia
Anas acuta — Spießente Spießentenpaar (Anas acuta) Systematik Ordnung: Gänsevögel (Anseriformes) … Deutsch Wikipedia
Anas eatoni — Kerguelenente Kerguelenente Systematik Ordnung: Gänsevögel (Anseriformes) Familie … Deutsch Wikipedia
