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弗兰格尔岛自然保护区

增加 99 位元組, 4 年前
世界遗产委员会评价:
==世界遗产委员会评价:==
弗兰格尔岛自然保护区位于北极圈内,包括弗兰格尔岛(7,608平方公里)、[[赫洛德岛]](11平方公里)的山地及其附近水域。该区在[[第四纪冰河]]时期没有受到冰河的作用,所以有丰富的生物多样性。这里有世界上最大的太平洋海象群,最高密度的古代北极熊牙齿,是从[[墨西哥]]海湾迁徙来的[[灰鲸]]的主要觅食地和100种[[候鸟]]的最北端筑巢地。在这些鸟类中,许多已经处于濒危状态。目前,已经确认岛上有417种类的维管植物,是北极圈内其他岛上植物种类的两倍,多于其他任何一个北极的岛屿。有些物种源于广泛分布的大陆性植物,另外一些是近年来植物杂交的产物,23种为地方特有 <ref>[http://whc.unesco.org/zh/list/1023 弗兰格尔岛自然保护区],世界遗产中心</ref>
Located well above the Arctic Circle, the site includes the mountainous Wrangel Island (7,608 km2), Herald Island (11 km2) and surrounding waters. Wrangel was not glaciated during the Quaternary Ice Age, resulting in exceptionally high levels of biodiversity for this region. The island boasts the world’s largest population of Pacific walrus and the highest density of ancestral polar bear dens. It is a major feeding ground for the grey whale migrating from Mexico and the northernmost nesting ground for 100 migratory bird species, many endangered. Currently, 417 species and subspecies of vascular plants have been identified on the island, double that of any other Arctic tundra territory of comparable size and more than any other Arctic island. Some species are derivative of widespread continental forms, others are the result of recent hybridization, and 23 are endemic.
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