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Dragonflies of Dragon’s Blood Island: Atlas of the Odonata of the Socotra Archipelago (Yemen)
Rendiconti Lincei. Scienze Fisiche e Naturali ( IF 2.1 ) Pub Date : 2020-08-12 , DOI: 10.1007/s12210-020-00942-6
Kay Van Damme , Petr Vahalík , Robert Ketelaar , Petr Jeziorski , Jaap Bouwman , Miranda Morris , Ahmed Saeed Suleiman , Henri J. Dumont

Abstract

Dragonflies are important bioindicators of aquatic ecosystem health. We discuss the distribution and richness of the 22 dragon- and damselfly species known from the Socotra Archipelago UNESCO World Heritage Site (Yemen) in the western Indian Ocean. We compiled 841 records from literature, field data and museum collections, covering a surveying period of 123 years (1896–2019). Distribution of the only endemic, the Socotra Bluet Azuragrion granti (McLachlan, 1903), an indicator of pristine lotic waters, is updated. Relatively higher dragonfly species richness occurs in eastern Socotra where suitable aquatic habitats are present all year. We observed a significant drop of the number of taxa over several decades in areas in the Hadiboh Plain where human development impacts are strongest. We discuss the indigenous people’s perception of dragonflies to assess the potential of these invertebrates as local flagships for aquatic biodiversity conservation. Our knowledge of the Socotran Odonata remains incomplete, yet they are now among the best studied animal groups in the archipelago. A new record of an Oriental Anax indicates that the island’s dragonfly fauna may yet harbour surprises. Our compilation of odonate records is the first for Socotra and serves as a baseline for future monitoring of the archipelago’s vital aquatic habitats. We converted all records into a geodatabase which we uploaded to an online, freely available web mapping server and mobile application to facilitate research and conservation of the Socotran dragonflies (www.dragonfliesofsocotra.com).

Graphic abstract



中文翻译:

龙血岛蜻蜓:索科特拉群岛(也门)的Odonata地图集

摘要

蜻蜓是水生生态系统健康的重要生物指标。我们讨论了从西印度洋联合国教科文组织世界遗产站点(也门)得知的22种龙和豆娘物种的分布和丰富程度。我们从文献,实地数据和博物馆收藏物中收集了841条记录,涵盖了123年(1896-2019年)的调查时间。唯一的地方病,Socotra Bluet Azuragrion Granti的分布(McLachlan,1903)更新了原始润肤水的指标。蜻蜓物种丰富度相对较高,发生在索科特拉东部,那里常年都有合适的水生栖息地。我们观察到,在哈迪博平原地区,对人类发展的影响最大的地区中,分类单元数量显着下降。我们讨论了土著人民对蜻蜓的看法,以评估这些无脊椎动物作为当地生物多样性保护水生生物的潜力。我们对Socotran Odonata的了解仍然不完整,但现在它们已成为群岛上研究最深入的动物群体之一。东方狐的新纪录表示该岛的蜻蜓动物可能尚未有惊喜。我们对卵酸盐记录的汇编是索科特拉的第一篇记录,并作为将来监测群岛重要水生生境的基准。我们将所有记录转换为地理数据库,然后将其上载到在线免费提供的网络地图服务器和移动应用程序中,以促进Socotran蜻蜓的研究和保护(www.dragonfliesofsocotra.com)。

图形摘要

更新日期:2020-08-12
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