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首页> 外文期刊>Revista de Biología Tropical >Diversity and distribution of aquatic insects in Southern Brazil wetlands: implications for biodiversity conservation in a Neotropical region
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Diversity and distribution of aquatic insects in Southern Brazil wetlands: implications for biodiversity conservation in a Neotropical region

机译：巴西南部湿地水生昆虫的多样性和分布：对新热带地区生物多样性保护的影响

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摘要

The selection of priority areas is an enormous challenge for biodiversity conservation. Some biogeographic methods have been used to identify the priority areas to conservation, and panbiogeography is one of them. This study aimed at the utilization of panbiogeographic tools, to identify the distribution patterns of aquatic insect genera, in wetland systems of an extensive area in the Neotropical region (~280 000km2), and to compare the distribution of the biogeographic units identified by the aquatic insects, with the conservation units of Southern Brazil. We analyzed the distribution pattern of 82 genera distributed in four orders of aquatic insects (Diptera, Odonata, Ephemeroptera and Trichoptera) in Southern Brazil wetlands. Therefore, 32 biogeographic nodes corresponded to the priority areas for conservation of the aquatic insect diversity. Among this total, 13 were located in the Atlantic Rainforest, 16 in the Pampa and three amongst both biomes. The distribution of nodes showed that only 15% of the dispersion centers of insects were inserted in conservation units. The four priority areas pointed by node cluster criterion must be considered in further inclusions of areas for biodiversity conservation in Southern Brazil wetlands, since such areas present species from differrent ancestral biota. The inclusion of such areas into the conservation units would be a strong way to conserve the aquatic biodiversity in this region.
机译：选择优先领域是生物多样性保护的巨大挑战。一些生物地理方法已经被用来确定保护的优先领域，而泛生物地理学就是其中之一。这项研究旨在利用生物地理工具，确定新热带地区（〜280 000 km2）大范围湿地系统中水生昆虫属的分布模式，并比较水生生物识别的生物地理单位的分布昆虫，巴西南部的保护单位。我们分析了巴西南部湿地中四个水生昆虫（双翅目，昆虫纲、,翅目和毛翅目昆虫）的82属的分布模式。因此，有32个生物地理节点对应于保护水生昆虫多样性的优先领域。在这总数中，有13个位于大西洋雨林中，有16个位于潘帕，两个生物群落中有3个。节点的分布表明，只有15％的昆虫扩散中心插入到保护单元中。在进一步纳入巴西南部湿地生物多样性保护区时，必须考虑节点簇标准所指出的四个优先领域，因为这些地区的物种来自不同的祖先生物群。将这些地区纳入保护单位将是保护该地区水生生物多样性的有力方法。

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