The Sipsey River, Alabama: A Crayfish Diversity “Hotspot”?
The Sipsey River, Alabama: A Crayfish Diversity “Hotspot”?
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阿拉巴马州西普西河：小龙虾多样性“热点”？
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
G. Schuster
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文献类型：
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作者：
J. D. Hopper;A. Huryn;G. Schuster
美国东南部约有250种小龙虾。其中，历史上已知的85个州来自阿拉巴马州。先前的研究表明，阿拉巴马州西部的西普西河流域是淡水贻贝（42种）和鱼类（102种）的多样性“热点”。这是由于不同的地质特征，一个完整的洪泛平原，缺乏蓄水池，缺乏城市中心。在为期两年的时间里，对西普西河流域进行了密集采样，收集了294只小龙虾，代表12个物种。其中的三种，陆氏Cambarus ludodovicianus， Orconectes chickasawae和vioscai paynei是值得保护的物种。我们的研究结果表明，西普西河的小龙虾种类比阿拉巴马州迄今为止调查的其他流域更丰富。
Abstract The southeastern United States contains ca. 250 species of crayfish. Of these, 85 are historically known from Alabama. Previous studies have shown that the Sipsey River drainage in western Alabama is a diversity “hotspot” for freshwater mussels (42 spp.) and fishes (102 spp.). This is attributed to diverse geologic features, an intact floodplain, lack of impoundments, and lack of urban centers. Intensive sampling of the Sipsey River drainage over a 2-year period resulted in a collection of 294 crayfish representing 12 species. Three of these species, Cambarus ludovicianus, Orconectes chickasawae, and Procambarus vioscai paynei are of conservation concern. Our results indicate that the Sipsey River harbors a greater richness of crayfish species per area than other drainages surveyed to date in Alabama.