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首页> 外文期刊>Aquatic Sciences >Ecological uniqueness and species richness of zooplankton in subtropical floodplain lakes
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Ecological uniqueness and species richness of zooplankton in subtropical floodplain lakes

机译：亚热带洪泛湖湖北浮游动物的生态独特性和物种丰富

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Beta diversity can be analysed using various approaches, but those integrating site and species contributions to beta diversity are rare in floodplain lake systems. We analysed the beta diversity of rotifers and cladocerans across 50 floodplain lakes in Brazil, focusing on both pelagic and littoral zones. We partitioned beta diversity into local contributions (LCBD), species contributions (SCBD), and related LCBD with environmental variables and SCBD with species features. We expected lower species richness and higher ecological uniqueness for both groups in the pelagic zones than in the littoral zones. The highest ecological uniqueness and low species richness were detected in the pelagic zone, whereas the littoral zones had high species richness and low ecological uniqueness. We found a negative relationship between species richness and LCBD for rotifers, but no significant relationship was detected for cladocerans. Nitrate, transparency and conductivity affected variation in ecological uniqueness. Common and accessory species had higher contributions to beta diversity compared with rare species. The SCBD of rotifers and cladocerans showed similar responses based on occurrence and density data. We suggest that the use of zooplankton assemblages to determine conservation actions across floodplain lakes should be based on different biological groups and lake zones. The inclusion of littoral zones adds to our knowledge of zooplankton biodiversity that has typically been based on studies of pelagic zones, and may have implications for the conservation planning of floodplain lakes.
机译：可以使用各种方法分析β多样性，但洪泛区湖泊系统中，这些地点和物种对β多样性的贡献的贡献是罕见的。我们分析了巴西50艘洪泛平原湖泊的轮虫和克拉铜蛋白酶的β多样性，专注于普拉加奇和沿着沿海地区。我们将Beta多样性分割为当地捐款（LCBD），物种贡献（SCBD），以及具有环境变量和SCBD的LCBD，具有物种特征。我们预计较低的物种丰富性和较高的生态唯一性，对于封面区中的两组比沿着沿沿着沿沿沿沿沿沿沿沿沿沿沿方区。在古典区检测到最高的生态唯一性和低种质，而沿海地区具有高物种丰富性和低生态唯一性。我们发现物种丰富性和LCBD之间的负面关系，但对于克拉根酯，没有检测到显着的关系。硝酸盐，透明度和电导率影响了生态唯一性的变化。与稀有物种相比，常见的和辅助物种对β多样性具有更高的贡献。转子和克拉铜的SCBD基于发生和密度数据显示相似的响应。我们建议使用Zooplankton集会来确定跨洪水湖泊的保护行动应基于不同的生物群和湖区。包含沿海地区的纳入我们对浮游动物生物多样性的了解，这些生物多样性通常是基于对皮拉古地区的研究，并且可能对洪泛平原湖泊的保护规划有影响。

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