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- Inbreeding_avoidance abstract "Inbreeding avoidance, or the inbreeding avoidance hypothesis, is a concept in evolutionary biology that refers to the prevention of the deleterious effects of inbreeding. The inbreeding avoidance hypothesis posits that certain mechanisms develop within a species, or within a given population of a species, as a result of natural and sexual selection in order to prevent breeding among related individuals in that species or population. Although inbreeding may impose certain evolutionary costs, inbreeding avoidance, which limits the number of potential mates for a given individual, can inflict opportunity costs. Therefore, a balance exists between inbreeding and inbreeding avoidance. This balance determines whether inbreeding mechanisms develop and the specific nature of said mechanisms.Inbreeding results in inbreeding depression, which is the reduction of fitness of a given population due to inbreeding. Inbreeding depression occurs via one of two mechanisms. The first mechanism involves the appearance of disadvantageous traits via the pairing of deleterious recessive alleles in a mating pair’s progeny. When two related individuals mate, the probability of deleterious recessive alleles pairing in the resulting offspring is higher as compared to when non-related individuals mate. The second mechanism relates to the increased fitness of heterozygotes. Many studies have demonstrated that homozygous individuals are often disadvantaged with respect to heterozygous individuals. For example, a study conducted on a population of South African cheetahs demonstrated that the lack of genetic variability among individuals in the population has resulted in negative consequences for individuals, such as a greater rate of juvenile mortality and spermatozoal abnormalities. When heterozygotes possess a fitness advantage relative to a homozygote, a population with a large number of homozygotes will have a relatively reduced fitness, thus leading to inbreeding depression. Through these described mechanisms, the effects of inbreeding depression are often severe enough to cause the evolution of inbreeding avoidance mechanisms.".
- Inbreeding_avoidance thumbnail Peach_2.jpg?width=300.
- Inbreeding_avoidance wikiPageID "44447884".
- Inbreeding_avoidance wikiPageLength "23554".
- Inbreeding_avoidance wikiPageOutDegree "46".
- Inbreeding_avoidance wikiPageRevisionID "662216392".
- Inbreeding_avoidance wikiPageWikiLink Allele.
- Inbreeding_avoidance wikiPageWikiLink Biological_specificity.
- Inbreeding_avoidance wikiPageWikiLink Brood_parasite.
- Inbreeding_avoidance wikiPageWikiLink Category:Evolutionary_biology.
- Inbreeding_avoidance wikiPageWikiLink Cooperative_breeding.
- Inbreeding_avoidance wikiPageWikiLink Cross-fostering.
- Inbreeding_avoidance wikiPageWikiLink DNA_profiling.
- Inbreeding_avoidance wikiPageWikiLink Dominance_(genetics).
- Inbreeding_avoidance wikiPageWikiLink Estrous_cycle.
- Inbreeding_avoidance wikiPageWikiLink Evolutionary_biology.
- Inbreeding_avoidance wikiPageWikiLink Fertilisation.
- Inbreeding_avoidance wikiPageWikiLink Genetic_variation.
- Inbreeding_avoidance wikiPageWikiLink Inbreeding.
- Inbreeding_avoidance wikiPageWikiLink Inbreeding_depression.
- Inbreeding_avoidance wikiPageWikiLink Kin_recognition.
- Inbreeding_avoidance wikiPageWikiLink Kin_selection.
- Inbreeding_avoidance wikiPageWikiLink Loss_of_heterozygosity.
- Inbreeding_avoidance wikiPageWikiLink Major_histocompatibility_complex.
- Inbreeding_avoidance wikiPageWikiLink Marmoset.
- Inbreeding_avoidance wikiPageWikiLink Meerkat.
- Inbreeding_avoidance wikiPageWikiLink Monogamy.
- Inbreeding_avoidance wikiPageWikiLink Natural_selection.
- Inbreeding_avoidance wikiPageWikiLink Offspring.
- Inbreeding_avoidance wikiPageWikiLink Pair_bond.
- Inbreeding_avoidance wikiPageWikiLink Phenotype.
- Inbreeding_avoidance wikiPageWikiLink Philopatry.
- Inbreeding_avoidance wikiPageWikiLink Polyandry.
- Inbreeding_avoidance wikiPageWikiLink Polygyny.
- Inbreeding_avoidance wikiPageWikiLink Promiscuity.
- Inbreeding_avoidance wikiPageWikiLink Quiescence.
- Inbreeding_avoidance wikiPageWikiLink Reproductive_success.
- Inbreeding_avoidance wikiPageWikiLink Sexual_maturity.
- Inbreeding_avoidance wikiPageWikiLink Sexual_selection.
- Inbreeding_avoidance wikiPageWikiLink Sexy_son_hypothesis.
- Inbreeding_avoidance wikiPageWikiLink Social_cue.
- Inbreeding_avoidance wikiPageWikiLink South_African_cheetah.
- Inbreeding_avoidance wikiPageWikiLink Westermarck_effect.
- Inbreeding_avoidance wikiPageWikiLink Zygosity.
- Inbreeding_avoidance wikiPageWikiLink File:F3.large.jpg.
- Inbreeding_avoidance wikiPageWikiLink File:Gombe_Stream_NP_Mutter_und_Kind.jpg.
- Inbreeding_avoidance wikiPageWikiLink File:Kin_recognition_Frommen_and_Baker.large.jpg.
- Inbreeding_avoidance wikiPageWikiLink File:Malurus_splendens_-Yangebup,_Western_Australia,_Australia_-male-8.jpg.
- Inbreeding_avoidance wikiPageWikiLink File:Peach_2.jpg.
- Inbreeding_avoidance wikiPageWikiLinkText "inbreeding avoidance".
- Inbreeding_avoidance wikiPageWikiLinkText "incest avoidance".
- Inbreeding_avoidance hasPhotoCollection Inbreeding_avoidance.
- Inbreeding_avoidance wikiPageUsesTemplate Template:Further.
- Inbreeding_avoidance wikiPageUsesTemplate Template:Further2.
- Inbreeding_avoidance wikiPageUsesTemplate Template:Reflist.
- Inbreeding_avoidance wikiPageUsesTemplate Template:See_also.
- Inbreeding_avoidance wikiPageUsesTemplate Template:See_also2.
- Inbreeding_avoidance subject Category:Evolutionary_biology.
- Inbreeding_avoidance hypernym Concept.
- Inbreeding_avoidance type Thing.
- Inbreeding_avoidance comment "Inbreeding avoidance, or the inbreeding avoidance hypothesis, is a concept in evolutionary biology that refers to the prevention of the deleterious effects of inbreeding. The inbreeding avoidance hypothesis posits that certain mechanisms develop within a species, or within a given population of a species, as a result of natural and sexual selection in order to prevent breeding among related individuals in that species or population.".
- Inbreeding_avoidance label "Inbreeding avoidance".
- Inbreeding_avoidance seeAlso Animal_sexual_behaviour.
- Inbreeding_avoidance seeAlso Polyandry.
- Inbreeding_avoidance sameAs m.012bnz61.
- Inbreeding_avoidance wasDerivedFrom Inbreeding_avoidance?oldid=662216392.
- Inbreeding_avoidance depiction Peach_2.jpg.
- Inbreeding_avoidance isPrimaryTopicOf Inbreeding_avoidance.