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kin selection, a type of natural selection that considers the role relatives play when evaluating the genetic fitness of a given individual. It is based on the concept of inclusive fitness, which is made up of individual survival and reproduction (direct fitness) and any impact that an individual has on the survival and reproduction of relatives (indirect fitness). Kin selection occurs when an animal engages in self-sacrificial behaviour that benefits the genetic fitness of its relatives ...
Kin selection is a process whereby natural selection favours a trait due to its positive effects on the reproductive success of an organism's relatives, even when at a cost to the organism's own survival and reproduction. Kin selection can lead to the evolution of altruistic behaviour.
May 14, 2022 · Kin Selection in Social Insects; In the discussion of natural selection, the emphasis was on how natural selection works on individuals to favor the more fit and disfavor the less fit in a population. The emphasis was on the survival (mortality selection), mating success (sexual selection), or family size (fecundity selection) of individuals ...
Jan 1, 2021 · Kin selection, Hamilton’s rule, and inclusive fitness are three of the most widely known concepts originating from Hamilton’s work, and they are at times used with much overlap in the literature. Here a separation is maintained between these notions, each with its own meaning. Kin selection (a term that first appeared in Maynard Smith and was later adopted by Hamilton and the scientific community) is the broadest of these concepts, and as will become apparent later in the section on ...
Jan 1, 2020 · The term first coined by Maynard Smith in 1964, kin selection is an extension of natural selection that incorporates how indirect sources of reproductive success (fitness of relatives) affect an organism’s actions to optimize its own fitness. Kin selection has been discussed as early as Darwin’s The Origin of Species (Darwin 1859) with much of its popularity coming from Hamilton’s mathematical treatment (Hamilton 1964).Hamilton’s rule captures the essence of kin selection; kin ...
Kin Selection☆ A.S. Griffin, in Reference Module in Life Sciences, 2017 Abstract. This article provides a definition of kin selection and an explanation of its importance in evolutionary biology, especially in the context of social behaviours. A distinction is drawn between kin selection and natural selection, drawing attention to the fact that kin selection maximises inclusive fitness through indirect fitness benefits: component of fitness due to the reproductive success of relatives.
Kin selection is a way of understanding allele frequency change as a consequence of the actions and interactions amongst individuals who share alleles by recent common descent, that is, kin. As with group selection, it is a consequence of the properties of groups that cause allele frequency change; with kin selection, though, the groups have this special genetic structure.
Mar 30, 2015 · According to Hamilton’s kin selection theory (also known as “inclusive fitness” theory), kin selection is the process by which social evolution occurs in nature. The theory extends the genetical theory of natural selection to social behaviors and finds that their evolution is affected by the likelihood that individuals share genes (relatedness). In biology, a social behavior occurs when one individual (the actor) behaves so as to affect the direct fitness (number of offspring) of ...
Kin selection is best understood by taking a gene’s eye view, though it is most accurately described as a form of group selection. Although mathematically it is possible – and even sometimes heuristically invaluable – to make all fitness variation under kin selection a property of genes or of individuals, this obscures the true causal forces that bring about gene-frequency change under kin selection. Kin selection is a way of understanding allele frequency change as a consequence of ...
Kin selection theory is a formulation of natural selection theory that is particularly suitable for understanding cases of reproductive self-sacrifice. For example, sterile workers in insect societies help the queen to reproduce by rearing her offspring.
