The status of the baobab (Adansonia digitata L.) in Mannar Island, Sri Lanka.

摘要: The baobab (Adansonia digitata) is not native to Sri Lanka, but was introduced centuries ago, perhaps by Arab traders. Today about 40 trees survive in of which 34 have been identified and measured the islandof Mannar. most abundant size class between 5 9.9 m (girth at breast height), accounted for more than 50% trees. About 40% Mannar are 300 400 years old. oldest tree estimated be 723 age. Despite being an species, it protected Lanka given its rarity antiquity. Island appears last bastion Lanka. That still survives island largely due status as a 'zero-cost species'. A potential threat future may come from aspirations people better quality life, through ill-conceived over-ambitious tourism development projects.