Results 181 to 190 of about 47,144 (218)

The Effect of Mutation on Population Size

Nature, 1973
AFTER the work of Haldane1 and Muller2, much has been written about the genetic load caused by mutation. This mutational load had been defined as the fraction by which the mean fitness of a population subject to mutation differs from the fitness of the wild (non-mutant) genotype3. The operational definition of load is then
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Bayesian Estimation of the Size of a Population

2006
We consider the following problem: estimate the size of a population marked with serial numbers after only a sample of the serial numbers has been observed. Its simplicity in formulation and the inviting possibilities of applicationmake this estimation well suited for an undergraduate level probability course.
Höhle, Michael, Held, Leonhard
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Rawlsian optimal population size

Journal of Population Economics, 1993
"In this paper, I examine the implications of the Rawlsian maximin criterion for optimal population size and intergenerational allocation of resource when fertility is endogenous. I show that whenever children are better-off than their parents in laissez-faire, then the size of the population and parental bequests are also optimal according to the ...
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The Effective Size of Fluctuating Populations

Theoretical Population Biology, 2001
We consider a Wright-Fisher model whose population size is an autocorrelated stochastic process. Our interest is in the effects of autocorrelated fluctuations of the population size on the effective size. We define the inbreeding effective size and the variance effective size and show that these effective sizes are the same for this model.
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Population Size and Extinction: A Note on Determining Critical Population Sizes

The American Naturalist, 1985
On presente divers modeles de probabilite d'extinction des populations, avec l'exemple particulier d'Ursus arctos, espece menacee.
Mark L. Shaffer, Fred B. Samson
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On the minimum size of endogamous populations

Social Biology, 1976
Abstract The survival of small endogamous human populations is investigated by computer simulation. It is shown that (1) populations practicing strict monogamy with no extramarital pregnancy are less likely to survive as endogamous groups than are those in which marriage is not a prerequisite for childbearing ; (2) low fertility—low mortality ...
J W, MacCluer, B, Dyke
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Sequential Estimation of the Size of a Population

Biometrika, 1972
When estimating the size of a finite population, it is possible to consider, as an alternative to the capture-recapture method, a sequential scheme. Suppose an urn contains an unknown number, N, balls, initially all white. A single ball is drawn at random and if it is white it is painted black and returned to the urn, while if it is black, indicating ...
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Population Size In Classifier Systems

1988
Abstract The question of optimal population size in Learning Classifier Systems is analyzed empirically in this paper. Classifier Systems are rule-based systems that use Genetic Algorithms, a model of natural selection and genetics, as their principal learning mechanism, and an economic model as their principal apportionment of credit mechanism. *CFS
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Size-Dependent In Vivo Transport of Nanoparticles: Implications for Delivery, Targeting, and Clearance

ACS Nano, 2023
Xingya Jiang, Yuanqing Song, Bujie Du
exaly  

Population genetics, ecology and the size of populations

Journal of Mathematical Biology, 2009
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