Sentence examples for threshold of population from inspiring English sources

That is, in contrast to previous work, we find a linear proportionality only above a certain threshold of population, a slope 0.929 955% CI of 0.85-1.01), belowelow that threshold the fit and the trend substantially weaken to only 0.18 (95% CI of 0.17-0.20).

Criterion A measures extinction risk based on exceeding a threshold of population decline (30% for Vulnerable, 50% for Endangered, and 80% for Critically Endangered) over a timeframe of three generation lengths, a measure of reproductive turnover rate, in the recent past.

Nationally, CL incidence was associated with the level of migrants in 'isolated' communes, more markedly above a given threshold of population density.

Sir, We thank Professor Wakeford for his comments on our recent paper, which evidenced an increased risk of childhood acute leukaemia in isolated French communes that were subject to highest inter-census population movements, more markedly above a given threshold of population density (Bellec et al, 2008).

As noted earlier, pedestrian-oriented stations and park-and-ride stations have different catchment area dimensions and thresholds of population and employments.

Furthermore, we aimed to identify the thresholds of population size and isolation beyond which genetic erosion starts to accumulate to detectable levels.

Future studies of the urban rural association should explore the importance of a dose response effect, a threshold value of population size, and population density.

So although it appears that the threshold level of population immunity required to drive antigenic drift has not yet been reached, we might expect antigenic variants to emerge over the next year or so as the pool of susceptible individuals declines.

Furthermore, additional studies are need to evaluate whether the following factors affect the risk of developing IBD: increasing population size (i.e. a dose response effect); a threshold value of population size; the number of people living per unit area (i.e. population density); and the duration and timing of exposure.

The chance that evolution can rescue the population from extinction depends on the relative rates of genetic change in the quantitative trait (i.e., Allee threshold) and of population decline (Gomulkiewicz and Holt 1995); hence the amount of genetic variance greatly impacts the ability to adapt and survive.

This equation is also subject to some further conditions Pence and Ramsey argue are biologically reasonable, for example that selection is density dependent, that there is an extinction threshold of some population size below which extinction obtains, and most important that the population dynamics are non-chaotic.