Sentence examples for variation in richness from inspiring English sources

The inventory of woody flora also revealed variation in richness and diversity across land cover types.

Overall macrofaunal richness was high, with 120 taxa from 120 cores, and variation in richness between locations of about 40 taxa.

We developed a set of a priori candidate models that reflected our assessment of likely causes of variation in richness, species density, occurrence and abundance.

Endemic species richness of one taxon explained between 37% and 57% of others (positive correlations) and taxon-specific richness in widespread species explained up to 76% of variation in richness of endemic species (negative correlations).

Large-scale patterns of spatial variation in richness and endemism, and in the ecological attributes that dictate them – notably geographical range size – are central to many fundamental questions in macroecology and conservation biology (Orme et al., 2006).

The mammal assemblages show variations in richness, diversity and endemicity.

Moreover, the method of Petit et al. (1998) can be applied to variation in allele richness (CTr = total allele richness, CSr = component of total allele richness attributable to within population allele richness and CDr = component of total allele richness attributable to among population variation) after adjusting for differences in sample size by rarefaction (El Mousadik and Petit 1996).

These models consistently explained more variation in exotic richness than in native richness.

The seasonal variation in species richness with significantly lower species richness, diversity, and relative abundance of forbs and annual grasses during the dry season could be presumed to be a result of reduced moisture content in the soil due to low rainfall (Gutierrez and Whitford 1987).

It is clear that the changes in functional diversity among habitat types in these reserves are due to variation in functional richness, which was detected by the two richness estimators used in this study (FRD and FRV).

Nonetheless, there are few field data with which to examine whether variation in species richness represents consistent correlations among taxa in the richness of rare or common species, or the relative importance of common and rare species in establishing trends in species richness within taxa.