Theobromine Theobromine Theobromine, formerly known as xantheose, is a bitter alkaloid of the cacao plant, with the chemical formula CHNO. It is found in chocolate, as well as in a number of other foods, including the leaves of the tea plant, and the kola nut. It is classified as a xanthine alkaloid, others of which include theophylline and caffeine. The compounds differ in that caffeine has an extra methyl group (see under Pharmacology section). Despite its name, the compound contains no bromine—"theobromine" is derived from "Theobroma", the name of the genus of the cacao tree (which itself is made up of
Seed predation seed predators locate, consume, and disperse seeds. In many cases this relationship is dependent upon the type of seed predator (specialist vs. generalist) or the particular habitat in which the interaction is taking place. The role of seed predation on plant demography may be either detrimental or in particular cases actually beneficial to plant populations. The Janzen-Connell model concerns how seed density and survival respond to distance from the parent tree and differential rates of seed predation. Seed density is hypothesized to decrease as distance from the parent tree increases. Where seeds are most abundant under the parent tree, seed