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首页> 美国卫生研究院文献>Journal of Insect Science >Aquatic Insects of Man-Made Habitats: Environmental Factors Determining the Distribution of Caddisflies (Trichoptera) Dragonflies (Odonata) and Beetles (Coleoptera) in Acidic Peat Pools
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Aquatic Insects of Man-Made Habitats: Environmental Factors Determining the Distribution of Caddisflies (Trichoptera) Dragonflies (Odonata) and Beetles (Coleoptera) in Acidic Peat Pools

机译：人工栖息地的水生昆虫：决定酸性泥炭池中ad蝇（Trichoptera）蜻蜓（Odonata）和甲虫（Coleoptera）分布的环境因素

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As degradation of sensitive habitats like Sphagnum L. (Sphagnales: Sphagnaceae) peatbogs is endangering their invertebrate fauna, artificial peat pools may offer peatbog insect fauna a chance of survival. The entomofauna of seven peat pools in a peatbog and its surrounding natural marginal zone in SE Poland was investigated at the level of species, assemblages and faunistic metrics, indicating the key environmental drivers of the insect distribution and their implications for the biodiversity and potential conservation of these habitats. The species composition, specialists, and insect assemblages of the peat pools were linked with the fauna typical of both peatbogs and dystrophic pools with an open water surface. The most specialized fauna was found in the pools with the largest Sphagnum cover: only tyrphobionts, of all the ecological elements, significantly discriminated the fauna of peat pools and the marginal zone. Sphagnum cover was the key structural factor affecting the distribution of all the insects. Additionally, dragonflies were dependent on pH, beetles on temperature, and caddisflies on dissolved oxygen; however, structural factors—apart from Sphagnum cover—pool perimeter and emergent vegetation cover were predominant. Our results show that appropriate management of the structural factors of peat pools, especially Sphagnum cover, and the provision of different successional stages, can enhance biodiversity and help to maintain a valuable specialist fauna. Even along small environmental gradients and in a homogeneous area, the response of insects is highly differentiated. Dragonflies probably best represent the conservation value of the overall invertebrate fauna of Sphagnum bogs.
机译：由于像泥炭藓（Sphagnanum：Sphagnaceae）这样的敏感生境的退化正在威胁其泥炭动物的无脊椎动物，因此人工泥炭池可能为泥炭虫昆虫提供生存的机会。在波兰的一个泥炭沼泽及其周围的自然边缘区中，对七个泥炭沼的昆虫群落进行了物种，组合和真菌学水平的研究，表明了昆虫分布的主要环境驱动因素及其对生物多样性和潜在保护潜力的影响。这些栖息地。泥炭池的物种组成，专长和昆虫组合与泥炭沼泽和营养不良池具有典型水面的典型动物区系有关。在具有最大的泥炭藓覆盖度的水池中发现了最专业的动物区系：在所有生态元素中，只有拟除虫菌能够明显地区分泥炭水池和边缘区。泥炭藓覆盖是影响所有昆虫分布的关键结构因素。此外，蜻蜓依赖于pH，甲虫依赖于温度，而镉依赖于溶解氧。但是，除了泥炭藓覆盖物以外，主要的结构因素是池周长和新出现的植被覆盖物。我们的结果表明，适当管理泥炭池的结构因素，尤其是泥炭藓覆盖度，并提供不同的演替阶段，可以增强生物多样性并有助于维持有价值的专业动物区系。即使在较小的环境梯度和均匀的区域内，昆虫的反应也会高度分化。蜻蜓可能最能代表整个水生沼泽无脊椎动物区系的保护价值。

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