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.
Alpha is the first letter of the Greek alphabet. In the system of Greek numerals it has a value of 1. It was derived from the Phoenician letter aleph . Letters that arose from alpha include the Latin A and the Cyrillic letter Ð°.