Sexual selection
Sexual selection is a mode of natural selection in which members of one biological sex choose mates of the other sex to mate with (intersexual selection), and compete with members of the same sex for access to members of the opposite sex (intrasexual selection). These two forms of selection mean that some individuals have greater reproductive success than others within a population, for example because they are more attractive or prefer more attractive partners to produce offspring. Successful males benefit from frequent mating and monopolizing access to one or more fertile females. Females can maximise the return on the energy they invest in reproduction by selecting and mating with the best males.
- Comment
- enSexual selection is a mode of natural selection in which members of one biological sex choose mates of the other sex to mate with (intersexual selection), and compete with members of the same sex for access to members of the opposite sex (intrasexual selection). These two forms of selection mean that some individuals have greater reproductive success than others within a population, for example because they are more attractive or prefer more attractive partners to produce offspring. Successful males benefit from frequent mating and monopolizing access to one or more fertile females. Females can maximise the return on the energy they invest in reproduction by selecting and mating with the best males.
- Depiction
.jpg)
.jpg)
_(cropped).jpg)
- Has abstract
- enSexual selection is a mode of natural selection in which members of one biological sex choose mates of the other sex to mate with (intersexual selection), and compete with members of the same sex for access to members of the opposite sex (intrasexual selection). These two forms of selection mean that some individuals have greater reproductive success than others within a population, for example because they are more attractive or prefer more attractive partners to produce offspring. Successful males benefit from frequent mating and monopolizing access to one or more fertile females. Females can maximise the return on the energy they invest in reproduction by selecting and mating with the best males. The concept was first articulated by Charles Darwin who wrote of a "second agency" other than natural selection, in which competition between mate candidates could lead to speciation. The theory was given a mathematical basis by Ronald Fisher in the early 20th century. Sexual selection can lead males to extreme efforts to demonstrate their fitness to be chosen by females, producing sexual dimorphism in secondary sexual characteristics, such as the ornate plumage of birds-of-paradise and peafowl, or the antlers of deer. This is caused by a positive feedback mechanism known as a Fisherian runaway, where the passing-on of the desire for a trait in one sex is as important as having the trait in the other sex in producing the runaway effect. Although the sexy son hypothesis indicates that females would prefer male offspring, Fisher's principle explains why the sex ratio is most often 1:1. Sexual selection is widely distributed in the animal kingdom, and is also found in plants and fungi.
- Has close match
- sexual-selection
- Hypernym
- Mode
- Is primary topic of
- Sexual selection
- Label
- enSexual selection
- Link from a Wikipage to another Wikipage
- Abedus indentatus
- Aesthetic
- Alfred Russel Wallace
- Altruism (biology)
- Amotz Zahavi
- Animal sexual behaviour
- Anisogamy
- Assortative mating
- Basidiomycetes
- Bateman's principle
- Beetle
- Belostomatidae
- Biological sex
- Biology
- Bird-of-paradise
- Birds-of-paradise
- Bird vocalization
- Camouflage
- Category:Population genetics
- Category:Sexual selection
- Charles Darwin
- Citronella (genus)
- Deer
- Dendropsophus microcephalus
- Disease
- Elephant seal
- England
- Eukaryote
- Evolutionary biologist
- Exponential growth
- File:Darwin sexual caricature.gif
- File:Euplectes progne male South Africa cropped.jpg
- File:Irish Elk front.jpg
- File:Paradesia decora Keulemans.jpg
- File:Peacock Flying.jpg
- File:Protarchaeopteryx 4713.JPG
- File:Susa group, mountain gorilla.jpg
- File:Tribolium castaneum87-300.jpg
- Firefly
- Fisher's principle
- Fisherian runaway
- Fitness (biology)
- Floral symmetry
- Flour beetle
- Flowering plant
- Fungi
- Gene expression
- Geometric progression
- Handicap principle
- Harem (zoology)
- Heritability
- Homogamy (biology)
- Honest signal
- Inbreeding
- Irish elk
- Linkage disequilibrium
- Long-tailed widowbird
- Macquarie Island
- Male–male competition
- Marlene Zuk
- Mate choice
- Mating
- Mating call
- Meerkat
- Natural selection
- Nymph (biology)
- Offspring
- On the Origin of Species
- Origin of avian flight
- Parental investment
- Peafowl
- Peahen
- Phidippus putnami
- Pleistocene
- Plumage
- Pollinator
- Population
- Positive feedback
- Protarchaeopteryx
- Ptyas mucosa
- Reproductive success
- Richard Dawkins
- Ronald Fisher
- Russell Lande
- Satin bowerbird
- Secondary sexual characteristic
- Sex organs
- Sex pheromone
- Sex ratio
- Sexual conflict
- Sexual dimorphism
- Sexual selection in flowering plants
- Sexual selection in fungi
- Sexual selection in humans
- Sexual selection in mammals
- Sexy son hypothesis
- Signalling theory
- Southern elephant seal
- Spider
- Statistician
- Steatopygia
- The Blind Watchmaker
- The Descent of Man, and Selection in Relation to Sex
- The Genetical Theory of Natural Selection
- Victoria's riflebird
- Viperidae
- W. D. Hamilton
- Winner and loser effects
- Xiphophorus montezumae
- Zygote
- SameAs
- Chọn lọc giới tính
- Cinsel seçilim
- Cinsi seçmə
- Dobór płciowy
- Hautespen sexual
- Kynval
- m.06n9w
- Nemi szelekció
- Pemilihan seks
- Pohlavní výběr
- Pohlavný výber
- Q206913
- Seksa selekto
- Seksuaalivalinta
- Seksuele selectie
- Seksuele seleksie
- Seksuell seleksjon
- Seksuell seleksjon
- Seksuel selektion
- Seksuwal na pagpili
- Seleção sexual
- Selección sexual
- Selección sexual
- Selecció sexual
- Sélection sexuelle
- Seleición sexual
- Seleksi seksual
- Selezione sessuale
- Sexual selection
- Sexual selection
- Sexuelle Selektion
- Spolno odabiranje
- Suguline valik
- xXro
- Полова селекција
- Половой отбор
- Полов отбор
- Статевий добір
- ברירה זוויגית
- اصطفاء جنسي
- گزینش جنسی
- ھەڵبژاردەی سێکسی
- যৌন নির্বাচন
- ലൈംഗിക തിരഞ്ഞെടുപ്പ്
- ලිංගික සහකරුවන් තෝරාගැනීම
- სქესობრივი გადარჩევა
- 性淘汰
- 性選擇
- 성 선택
- Subject
- Category:Population genetics
- Category:Sexual selection
- Thumbnail
- WasDerivedFrom
- Sexual selection?oldid=1115180341&ns=0
- WikiPageInterLanguageLink
- Naturligt urval
- WikiPageLength
- 49957
- Wikipage page ID
- 26789
- Wikipage revision ID
- 1115180341
- WikiPageUsesTemplate
- Template:About
- Template:Evolution
- Template:Further
- Template:Good article
- Template:Main
- Template:Patterns in nature
- Template:Population genetics
- Template:Portal bar
- Template:Quote
- Template:Reflist
- Template:Sex (biology)
- Template:Short description
- Template:Sociobiology
- Template:Speciation
- Template:Use British English
