Zrmanja河和Krupa河(克罗地亚)的淡水软体动物-这些河流作为受威胁和特有物种的避难所的作用

L. Beran
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引用次数: 2

摘要

巴尔干地区居住着数百种特有的淡水软体动物,但关于它们的分布情况以及关于更常见和广泛分布的物种的分布情况的资料仍然不足;大多数地区没有完整的软体动物种群清单。Zrmanja是克罗地亚亚得里亚海地区最大的河流之一。在过去的十年里,人们对它的淡水软体动物进行了研究,得出了大量的分布数据。本研究的主要目的是总结和分析其淡水软体动物的最新分布信息,特别是地方性或受威胁的物种。在Zrmanja河及其支流的73个地点共发现了33种淡水软体动物。Zrmanja河的中部及其最大的支流Krupa河是研究最丰富的部分。在河的中下游发现了Zrmanja集水区特有的Dalmatinella fluviatilis Radoman、Tanousia zrmanjae (Brusina)和Islamia zermanica Radoman。它们分布分散,面积有限;T. zrmanjae可能濒临灭绝。值得注意的是,在泉水或地下水中发现了特有的Belgrandiella kusceri (Wagner)、Hadziella sketi Bole和Kerkia sp.,在Zrmanja河和Krupa河中发现了大量的Unio elongatulus C. Pfeiffer。该地区可以被视为巴尔干地区的重要组成部分,巴尔干地区是全球生物多样性的世界热点之一。虽然受到保护,但仍有人为因素对软体动物群落产生负面影响或可能产生影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Freshwater molluscs of the Zrmanja and Krupa Rivers (Croatia) – the role of these rivers as a refuge of threatened and endemic species
The Balkan region is inhabited by hundreds of endemic species of freshwater molluscs but the information on their distribution, as well as that on the distribution of more common and widespread species, is still insufficient; most areas have no complete inventories of their mollusc faunas. The Zrmanja is one of the largest rivers in the Adriatic part of Croatia. Its freshwater molluscs were studied in the last decade, resulting in a substantial body of distributional data. The main objective of this study was to summarise and analyse the recent distributional information on its freshwater molluscs, with special reference to endemic or threatened species. In total 33 freshwater mollusc species were found in the Zrmanja River and its tributaries at 73 sites. The middle section of the Zrmanja River and its largest tributary, the Krupa River, were the richest studied parts. Dalmatinella fluviatilis Radoman, Tanousia zrmanjae (Brusina) and Islamia zermanica Radoman, endemic to the Zrmanja catchment area, were found in the middle and lower sections of the river. Their occurrence is scattered and limited in area; T. zrmanjae is probably on the verge of extinction. The occurrence of the endemic Belgrandiella kusceri (Wagner), Hadziella sketi Bole and Kerkia sp. in springs or underground waters and an abundant population of Unio elongatulus C. Pfeiffer in the Zrmanja and Krupa Rivers is also noteworthy. The area can be regarded as an important part of the Balkan region, one of world’s hotspots of global biodiversity. Although it is protected, there are still anthropogenic factors that are negatively affecting or may affect the mollusc assemblages.
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