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Abundance, distribution and conservation significance of regionally endemic plant species on Anegada, British Virgin Islands

机译：英属维尔京群岛Anegada上地方特有植物物种的丰度，分布和保护意义

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摘要

The conservation significance of the Caribbean island of Anegada in the British Virgin Islands is highlighted in this study of the distribution of plant species in two major habitats, sand dunes and limestone pavement. In 104 plots along 27 transects located around the western salt ponds of the Anegada Ramsar site, 133 plant species were recorded, including five regional endemics. The limestone pavement supported large populations of Acacia anegadensis, endemic to Anegada, and Cordia rupicola, known only from Anegada and Puerto Rico (although the Puerto Rican population is thought to be extirpated). The sand dunes supported a large population of Metastelma anegadense, also endemic to Anegada. Two other regional endemics were recorded within the limestone cays, Leptocereus quadri-costatus, previously known from only one locality in Puerto Rico and Malpighia woodburyana, restricted to a few small populations on islands on the Puerto Rican Bank. For both of these species Anegada supports the largest known individual population.
机译：这项关于英属维尔京群岛的加勒比海岛（Anegada）的保护意义在这项关于两种主要生境（沙丘和石灰石路面）中植物物种分布的研究中得到了强调。在沿Anegada Ramsar站点西盐池周围的27个样带的104个样地中，记录了133种植物，其中包括5种区域特有种。石灰石路面支撑着大批的相思树（Anegada特有的相思树）和相思树（Cordia rupicola），仅从相思树和波多黎各才知道（尽管波多黎各人被认为已绝种了）。沙丘支撑着同样为Anegada特有的大量Metastelma anegadense。石灰岩礁内还记录了另外两个地方性地方病，即Leptocereus quadri-costatus，以前仅在波多黎各和马尔皮希亚伯里伯纳的一个地方才知道，仅限于波多黎各河沿岸的少数人口。对于这两个物种，Anegada都支持最大的已知个体种群。

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