The size of the tataram is determined with a circular line. The supporting posts are then dug in at intervals of about one metre. These posts are made from a tree called Apple of Sodom (Calotropis procera), also known as roostertree, a shrub or small tree that grows to a height of 1 to 6 metres. These branches are reinforced and extended with the strong leaf stalk of the palm fronds of the date palm, so that the interior of the new hut is covered - Aïr - Niger - 2001