mean fitness
Frequency-Dependent Selection With Dominance: A Window Onto the Behavior of the Mean Fitness
... full mean fitness graphs coincide with those that produce range of behavior and when each ...the mean current allele frequency p, in terms of where it increases fitness w t ⫽ w(p t ) always ...
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CHANGES OF MEAN FITNESS IN RANDOM MATING POPULATIONS WHEN EPISTASIS AND LINKAGE ARE PRESENT
... Individual correction factors may have positive or nega- tive signs, so that some of the contributions from the correction factors may be cancelled in their summation with t[r] ...
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WITH SELECTION FOR FECUNDITY THE MEAN FITNESS DOES NOT NECESSARILY INCREASE
... One may object that the “natural” measure of population fitness that has been chosen is not appropriate, and that, after solme search, a more suitable function of the Gij’s and P,Q[r] ...
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The Degeneration of Asexual Haploid Populations and the Speed of Muller's Ratchet
... ratchet based on a diffusion equation presented here seems to make a better prediction of the time between clicks of the ratchet than the previous approximations, for moderate selection coefficients in a range that is ...
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The Evolution of Bacterial Transformation: Sex With Poor Relations
... Pure popu- lations of transformers or nontransformers, initially de- void of mutations, each approach the same equilibrium mean fitness, a mean fitness that depends on the muta[r] ...
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Long-Term Experimental Evolution in Escherichia coli. VI. Environmental Constraints on Adaptation and Divergence
... In contrast with replicate populations selected in glucose-limited medium, the mean fitness of populations selected in maltose me- dium was similar in both selected [r] ...
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SOME PROPERTIES OF TWO-LOCUS SYSTEMS WITH EPISTATIC SELECTION
... The derivatives of mean fitness on other population parameters have closely similar properties in the theories of one and two loci.-As would be expected, dominance and [r] ...
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Estimation of Deleterious-Mutation Parameters in Natural Populations
... For populations in which the genetic variance for fitness is a consequence of selection-mutation balance, the mean fitness and genetic variance of fitness in outb[r] ...
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THE EXPERIMENTAL ASSESSMENT OF FITNESS IN DROSOPHILA. I. COMPARATIVE MEASURES OF COMPETITIVE REPRODUCTIVE SUCCESS
... The mean fitness estimates and the standard errors for each of the strains tested in all four of the single-generation tests are given in Table 2.. Overall means and vari[r] ...
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A THEORETICAL AND NUMERICAL ASSESSMENT OF GENETIC VARIABILITY
... Among the key conclusions are (1) equi- libria that are most polymorphic do not usually have the highest mean fitness, ( 2 ) the more structure there is in the choice of the v[r] ...
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EQUILIBRIA UNDER INBREEDING AND SELECTION
... The equilibrium values of these indices are given by a simple expression involving the amount of selfing and the mean fitness, while the equilibrium allelic freque[r] ...
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A model for phenotype change in a stochastic framework
... individual fitness by use of a model involving a deterministic response to the new ...for mean fitness of variance in the waiting time to develop the defensive ...
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Rapid Adaptive Amplification of Preexisting Variation in an RNA Virus
... VSV fitness dynamics under various conditions, including new and previously published ...of fitness in the initial population agrees very well with the results of direct experiments with subclone ...
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Understanding the Overdispersed Molecular Clock
... the mean butions from D s1 and indirect interactions. Also, note fitness of the population is equal to 1 ⫹ s *, where s * that R(T) grows very slowly with increasing ...population mean fitness ...
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Estimates of the Rate and Distribution of Fitness Effects of Spontaneous Mutation in Saccharomyces cerevisiae
... affecting fitness (U) and the mean fitness cost per mutation (s) are important parameters in evolutionary genetics, but have been estimated for few ...in mean fitness. The other mode ...
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A NUMERICAL SIMULATION OF THE ONE-LOCUS, MULTIPLE-ALLELE FERTILITY MODEL
... Both models showed an increase in mean fitness, the number of equilibria, the mean number of alleles, heterozygosity and number of generations required to attain eq[r] ...
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Estimation of Deleterious Genomic Mutation Parameters in Natural Populations by Accounting for Variable Mutation Effects Across Loci
... constant fitness effects of DGM and hence is biased under variable fitness effects of ...the mean fitness and genetic variance for fitness of parental and progeny generations across ...
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The mathematics of nepotism: A review of Foundations of Social Evolution by Steven A Frank
... a fitness value, w; for example, z = 100 might be associated with w = 2, which might mean, say, that highly aggressive animals tended to have two offspring on ...relative fitness level w/w associated ...
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A Hybrid Image Contrast Enhancement Approach Using Genetic Algorithm and Neural Network
... [8]. This explains the ongoing popularity of GA in image processing [7] and other fields [9, 10]. Genetic Algorithms are based on the methodology of natural selection [11]. Natural selection of fittest individuals is ...
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EFFICIENT SCHEDULING OF WORKFLOW IN CLOUD ENVIORNMENT USING BILLING MODEL AWARE TASK CLUSTERING
... optimum fitness value of each particle and then finds their corresponding support and confidence as minimum threshold ...weighted mean best position according to fitness values of the ...
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