Fitness and artificial selection
نویسندگان
چکیده
منابع مشابه
Fitness consequences of artificial selection on relative male genital size
Male genitalia often show remarkable differences among related species in size, shape and complexity. Across poeciliid fishes, the elongated fin (gonopodium) that males use to inseminate females ranges from 18 to 53% of body length. Relative genital size therefore varies greatly among species. In contrast, there is often tight within-species allometric scaling, which suggests strong selection a...
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Aesthetic selection and artificial evolution have been two of the more successful companions introduced to the toolbox of electronic image-makers in recent years. This paper examines the niche in which this technique, often associated with the simulation of biological processes, has positioned itself and some of the reasons for its success. Some remarks concerning the meaningfulness of a user’s...
متن کاملFitness, Probablity, and the Principles of Natural Selection Fitness, Probablity, and the Principles of Natural Selection 2 Fitness, Probability, and the Principles of Natural Selection ‡
We argue that a fashionable interpretation of the theory of natural selection as a claim exclusively about populations is mistaken. The interpretation rests on adopting an analysis of fitness as a probabilistic propensity which cannot be substantiated, draws parallels to thermodynamics which are without foundations, and fails to do justice to the fundamental distinction between drift and select...
متن کاملNatural selection and the maximization of fitness.
The notion that natural selection is a process of fitness maximization gets a bad press in population genetics, yet in other areas of biology the view that organisms behave as if attempting to maximize their fitness remains widespread. Here I critically appraise the prospects for reconciliation. I first distinguish four varieties of fitness maximization. I then examine two recent developments t...
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ژورنال
عنوان ژورنال: Heredity
سال: 1961
ISSN: 0018-067X,1365-2540
DOI: 10.1038/hdy.1961.13