Sentence examples for richness of each sample from inspiring English sources

To assess this, we measured the Shannon diversity index that combines the evenness of taxa distribution and the richness of each sample.

A graph plotting the sample size of the core collection versus the allele richness of each sample (i.e., the percentage of alleles from the thematic collection retained on each core collection) was used to determine the sample size that would bring retention of at least 80% of the allelic richness of the thematic collection, following the original principles defined by [ 29].

Parametric estimates of OTU richness for each sample were estimated with Catchall (Bunge et al. 2012) and are displayed in Table 1.

To test for an inverse relationship between species richness and overall ant abundances, we began by obtaining expected values of species richness for each sample locale (i.e. plot and island).

The OTU richness rarefaction curve of each sample was computed using a self-written function in R (Supplementary Data S2).

An alternative way to use molecular information for sampling is to use marker gene data as a way to score the allelic richness of a sample.

In essence, the approaches either describe the entire distribution of species abundance, or provide some metric that quantifies the richness of the sample or assemblage (richness being the number of species present), or develop a statistic that takes account of the evenness of the species abundances.

The probability of finding no copies of allele type i in a subsample of size g alleles from population j is (1) Then the probability of finding at least one copy of allele type i in a sample of size g alleles from population j is P ijg =1− Q ijg, and (2) is the estimated allelic richness of a sample of size g from population j (Hurlbert, 1971; Kalinowski, 2004; Petit et al., 1998).

The curve also indicates that the species richness of the noIBS sample (the blue line) is higher than that of the IBS sample (the red line).

Higher species richness of a given sample might present a lower species diversity resulting from a lower evenness of the sample.

20 In order to maximise the richness of data, the sample was chosen in an attempt to maximise the variation of expertise and perspectives.