Tetiaroa The coconut grove was planted on the decision of Dr. Johnston Walter Williams, there are 80 to 100 years in order to produce copra. At the time, the planting technique consisted
, in most cases, cut off all natural vegetation, to let it dry and then burn everything before planting coconut trees by importing seed of a nut deemed planting, usually located on another island (Michel Guerin, personal communication). current density of adult palms is very high, up to 450 palms per hectare, whereas the normal planting densities are about 100 to 200 coconuts per hectare. The accompanying figure compares the density of coconut Tetiaroa to that of a hybrid coconut plantation conducted using the standard norm. Maintenance of coconuts was done, at least to a certain period, by burning, "vacuum cleaning" by cutting and burning everything that was not coconut. Traces of this type of burn are visible on the trunk of old coconut trees in the northwest of the motu Onetahi. These planting techniques were harmful to the biodiversity of endemic species (Dupon, 1987). There were probably significant replanting after hurricanes.
harvesting coconuts and copra production ceased in the 1970s. Many coconut downed germinated Others are eaten by rats, whose population has increased. Nuts
coconut pierced by rats and partially filled with rainwater is an environment conducive to the proliferation of mosquitoes and flies. In the coconut current Tetiaroa, 20 to 40% of coconut trees follow the original planting device. They are recognizable on the satellite photos to the fact that they are planted in a straight line, generally oriented north-south and east-west. These original coconut plantation are mainly localized on the motus Tiraunu, Hiraan and Horoatera. The coconuts are many other volunteer anarchic fruit coconut fell to the ground and germinated.
Total coconut Tetiaroa adults can be estimated at between 150,000 and 200,000 trees.
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