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首页> 外文期刊>Oryx >Updated global distribution of the threatened marine limpet Patella ferruginea (Gastropoda: Patellidae): an example of biodiversity loss in the Mediterranean
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Updated global distribution of the threatened marine limpet Patella ferruginea (Gastropoda: Patellidae): an example of biodiversity loss in the Mediterranean

机译：濒临灭绝的海洋的全球分布的最新情况（fer天蛾：Pat蝶）：地中海地区生物多样性丧失的一个例子

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摘要

Patella ferruginea is the most threatened macro-invertebrate in the western Mediterranean, where it is at serious risk of extinction. There is little information on the status of the various populations and most data were published more than 25 years ago. This study provides updated information on the global status of this species, and implications for management and conservation, and tests the hypothesis that population structure can be influenced by collection by people and by the type of substrate. Fifty-five localities were surveyed in Corsica, Sardinia, Tuscany and Sicily, on the islands of Egadi and Pantelleria, and on the Zembra archipelago and Tunisian coasts. The species is extinct on mainland Italy and Sicily but isolated individuals can be found on Egadi and Pantelleria. Populations on Corsica and Sardinia have declined dramatically during the last 25 years. The population in the Zembra archipelago is well preserved, although more widely on Tunisian coasts the species is highly threatened. The information provided here, combined with information from the literature, indicates a strong decline and/or extinction of many populations throughout the western Mediterranean and the presence of healthy populations only in some locations along the north African coast. The species exhibits an increase in density and mean size in areas free of human pressure but the type of substrate (natural or artificial) has no strong influence.
机译：Ferruginea is骨是地中海西部受威胁最大的大型无脊椎动物，那里很容易灭绝。关于各种人口状况的信息很少，大多数数据是在25年前发布的。这项研究提供了有关该物种全球状况的最新信息，以及其对管理和保护的意义，并检验了以下假设的假设：种群结构可能受到人为收集和基质类型的影响。在科西嘉岛，撒丁岛，托斯卡纳和西西里岛，埃加迪和潘泰莱里亚岛以及Zembra群岛和突尼斯沿海地区对55个地区进行了调查。该物种在意大利大陆和西西里岛已灭绝，但在Egadi和Pantelleria上可以找到孤立的个体。在过去的25年中，可西嘉岛和撒丁岛的人口急剧下降。斑马群岛的种群得到了很好的保护，尽管在突尼斯沿海地区的种群受到的威胁很大。此处提供的信息与文献中的信息相结合，表明整个西地中海地区许多人口都在急剧减少和/或灭绝，并且仅在北非沿岸的某些地区存在健康的人口。该物种在没有人为压力的区域内表现出密度和平均大小的增加，但是底物的类型（天然或人工）没有强烈影响。

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