Sentence examples for richness of population from inspiring English sources

The extraction of information from patterns of variation in genetic data requires mathematical models that can capture the diversity and richness of population histories, as well as efficient statistical tools for fitting models to data.

In the few studies undertaken in plant communities, increasing genotypic richness of populations led to parallel effects on productivity [3], [4].

In the rarefaction framework, the estimated allelic richness of a population is the number of distinct alleles expected in a random subsample of size g drawn from the population (Hurlbert, 1971; Petit et al., 1998).

The richness of the population in rpoS mutations extends beyond the three prominent alleles and at least five other alleles could be detected at lower frequencies; other alleles were probably there but below the detection limit of metagenomics.

The mean number of alleles per locus and per site and the expected (H E ) and observed heterozygosity (H O ) per locus, as well as the private allelic richness of each population were calculated in the R package "adegenet" [ 34].

We have analyzed fractionated naïve and memory CD4 and CD8 T-cell populations and have found a threefold to fivefold contraction in richness of naïve populations drawn from individuals older than 65 years when compared with those from individuals younger than 35 years [ 8].

Unfortunately, there is no information available on the allelic richness of native populations of O. maculata that allows similar inferences.

Gene diversity and allelic richness of Moroccan populations were most similar to those of Iberian genetic group 3, although Moroccan diversities were mostly higher (Table  4).

The richness of STM populations was estimated by McIntosh's dominance index: D = N - √ ∑ n 2 i N - √ N where D is McIntosh's dominance index of diversity, n i - the proportional abundance of the ith MLVA types, and N is the total number of STM isolates in a given population [ 28].

To investigate the robustness of our estimate of founder population size to changes in the average allelic richness of the source population, we repeated the analysis assuming that the source population had a 50% reduction in allelic richness compared to France.

Overall both O diets had a more positive influence on the counts of the beneficial microorganisms and richness of the Lactobacillus population in the porcine GIT.