8 Alternative Android App Stores From China. Just as the entire Android system is largely open, so the method of getting apps onto Googleâs mobile OS is also unfettered. In most of the rest of the world, the official Android Market suffices as the primary app source â but in China, the situation has evolved quite differently.
Biodiversity can be measured and monitored at several spatial scales. Alpha Diversity = richness and evenness of individuals within a habitat unit. For example in the figure below, Alpha Diversity of Site A = 7 species, Site B = 5 species, Site C = 7 species. Beta Diversity = expression of diversity between habitats.
Species diversity is a combination of richness and evenness; it is species richness weighted by species evenness, and there are formulae that permit the diversity of a community to be expressed in a single number.he simplest measure of a diversity is to count the number of species. This is known as species richness. Each species, however, is not likely to have the same number of individuals in that community. One species might be represented by 1000 individuals, and another by 200, and a third by a single individual.