Nukutipipi atoll, Tuamotu archipelago; geomorphology, land and marine flora and fauna and interrelationships

Nukutipipi atoll (5 km2), of volcanic origin 16-17 million years old on the Pitcairn (hot spot) Hereheretue line, presents a land flora and fauna of low diversity but with a Pisonia forest and hundreds of resident red-tailed tropic birds. Nukutipipi suffered from the 1983 hurricanes : destruction of vegetation and motu as well as sand lagoon mollusc populations. The north and south rims present original geomorphological structures. Lagoon without patch reefs reaching the surface is characterised by dome patch reefs all constituted of dead Acropora with few scleractinian and mollusc species, but an important algae coverage. All these characteristics indicate the precariousness on a time scale of such a so tiny atoll, land and marine, with a closed lagoon.
Available online
Call Number: [EL]
Physical Description: 50 p.

努库蒂皮皮环礁（面积5平方公里），火山成因，距今约1600万年至1700万年，位于皮特凯恩（热点）赫雷赫雷图埃线，拥有低度多样的陆地植物群和动物群，其中包含一片松树森林和数百只栖息的红色尾热带鸟。努库蒂皮皮环礁曾遭受1983年飓风的侵袭：植被和岛屿的破坏，以及沙滩泻湖贝类种群的减少。北岸和南岸保留了原始的地貌结构。该泻湖无斑礁延伸至水面，由全为死亡的无梗珊瑚构成的穹顶状斑礁构成，仅有少量硬珊瑚和贝类物种，但藻类覆盖率重要。所有这些特征均表明，如此微小的环礁，无论是陆地还是海洋，在时间尺度上均处于岌岌可危的状态，且泻湖封闭。数据集可在网上获取。

索书号：[EL]

物理描述：50页。