Habitat/Conservation
P. diadema diadema is restricted to the rainforests of eastern and northeastern Madagascar. Its precise range is unknown, but it probably has the highest numbers and greatest range of any of the four subspecies of diademed sifaka. It is believed to range from the Mangoro River in the South to the Antainambalana River in the north. This sifaka is protected in six reserves in eastern Madagascar, but nowhere is it found in large numbers. Due to its low density, threats from slash and burn agriculture and the fact that it is hunted for food in most of its range, this species is considered to be highly endangered.