Human impact on biodiversity is usually measured by decreases in species abundance or richness. (natureasia.com)
For this study, Passy developed a novel conceptual framework explaining the variability in species abundance distribution as a function of two gradients — environmental favorability and species stress tolerance. (sciencedaily.com)
One of the most popular explanations for species abundance holds that seemingly homogeneous habitats consist of many niches. (sciencemag.org)