Population size and change
Consequences of sex change for effective population size
... sex change does not have to incur an evolutionary cost in terms of increased genetic drift, even when it leads to highly skewed adult sex ...effective population size at the ESS age at sex ...
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A Unified Treatment of the Probability of Fixation when Population Size and the Strength of Selection Change Over Time
... where population size and the strength of selection are time de- ...in population size and the strength of selection both affect the probability of fixation, the changes are not equivalent and ...
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The effect of change in population size on DNA polymorphism.
... T h e results obtained indicate that the number of segregat- ing sites is influenced by the size of current population more strongly than is the average number of nucleo[r] ...
5
THE HOMOZYGOSITY TEST AFTER A CHANGE IN POPULATION SIZE
... Under strict neutrality, and assuming statistical stationarity in the infinitely many alleles model, a ran- dom sample of genes should have allele frequencies consisten[r] ...
9
Consequences of sex change for effective population size
... the overall skew in sex ratio becomes less pronounced; and the ratios N eESS /N eG and N eESS /N eMax both converge on 1.0. Results were qualitatively similar but less pronounced for the barramundi, for which I was ...
12
Sex change and effective population size : implications for population genetic studies in marine fish
... mean values, respectively.. For slinger, Chrysoblephus puniceus , see Chopelet et al.. Table 2 : Genetic diversity of slinger, Chrysoblephus puniceus and santer, Cheimerius nufar e[r] ...
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N = B – D + I – E Where: N = change in population size
... of population biology. Basic concepts and mathematical models of population dynamics, including exponential and logistic growth, competition, and predation, will be ...
8
A Neutral Model With Fluctuating Population Size and Its Effective Size
... of population size differs with the effective size being kept constant (Tachida ...effective size N * e is smaller than the harmonic mean to the effective population size under ...
8
On the Meaning and Existence of an Effective Population Size
... or population structure converges to the coalescent with a linear change in ...effective population size. We find that such a linear timescale change is obtained when demographic ...
10
Population Ageing and Technological Change
... rapid population ageing is expected in the immediate ...addition, population decline and labour force decline are not ...technological change or productivity ...to change in the simulation ...
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Climate change and optimum population
... (population size) × (emissions intensity of ...poulation size rose by 87% (IPCC, 2014b, ...reducing population size looks like at least one sensible thing to ...
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Population Ageing and Technological Change
... technological change or productivity ...to change in the simulation ...changing population size and age structure, which is the main aim of the ...
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Ultimate Population Size: Some Investigations under Stable Population Theory
... Ultimate Population, Fertility Schedule, Models, Replacement Level ...stable population theory when population growth rate becomes zero, the population size becomes fixed and such ...
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PRISON-RELEASE DISCRETION AND PRISON POPULATION SIZE
... legal change is required in Texas to drive the state’s prison rates up or down through shifts in prison-release ...massive change in prison policy all by ...
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Overdominant Alleles in a Population of Variable Size
... the population contains i class A alleles, the ranges of parameter values for which the asymptotic each in frequency x, and j class a alleles, each in fre- approximation for strong selection, Equation 4, applies ...
8
The fiscal impact of population change
... larger population, so the marginal cost of providing for new members of the population is ...the population reduce the per capita price of a given level of services, so the actual defense services ...
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Maturation at a young age and small size of European smelt (Osmerus eperlanus): A consequence of population overexploitation or climate change?
... Timo Arula * , Heli Shpilev, Tiit Raid, Markus Vetemaa and Anu Albert Abstract Age of fish at maturation depends on the species and environmental factors but, in general, investment in growth is prioritized until the ...
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The Linkages Between Population Change and Climate Change in Africa
... family size and their preferences for having another ...climate change, suggestion that “adaptation may also involve ideational changes that could affect behaviour throughout women’s reproductive ...
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The Effective Size of a Subdivided Population
... identity due to coalescence in some particular genera- tion, T '. This is given by the probability of a coalescence in some deme k at time T ' , multiplied by the probability tha[r] ...
15
Population, Population Density, and Technological Change
... But population density does not only represent the diffusion of technology but also the need and the ability to use a new ...certain population density is necessary to generate the demand for technological ...
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