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首页> 外文期刊>Ecological research >Identifying priority habitats and monitoring species for conservation and restoration of lentic Odonata habitats: assemblage nestedness on Amami-Oshima Island, Japan
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Identifying priority habitats and monitoring species for conservation and restoration of lentic Odonata habitats: assemblage nestedness on Amami-Oshima Island, Japan

机译：确定优先栖息地并监测物种，以保护和恢复透镜形蜻蜓目栖息地：日本Am美大岛岛上的组合巢

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摘要

We investigated Odonata faunal and habitat characteristics (forest cover, emergent, submerged, floating-leaved and floating plant covers, pond area, NO3 (-), chemical oxygen demand, and presence/absence of a nonnative fish) in 10 ponds on Amami-Oshima Island. In total, 26 species of six odonate families were found, and we detected significant nestedness of species composition among the ponds (22 species in the most species-rich pond, and 8 species in the most species-poor pond). Species found only in the most species-rich ponds were: Anax nigrofasciatus nigrofasciatus, Acisoma panorpoides panorpoides, Agriocnemis famina oryzae, Rhyothemis severini, Anasiaeschna martini, Hemicordulia okinawaensis, Lyriothemis elegantissima, and Hydrobasileus croceus (hereafter referred to as the rare species). These rare species are generally known to preferentially inhabit ponds with lush emergent plants and/or to prefer cooler habitats shaded by forest cover, such as Anax nigrofasciatus nigrofasciatus, Anac. martini, He. okinawaensis, and L. elegantissima. In contrast, the common species also found in species-poor ponds were: Ischnura senegalensis, Pantala flavescens, Anax parthenope julis, Ictinogomphus pertinax, and Tramea verginia, which are known to prefer an open water surface as spawning habitat. These differences in habitat preference between the rare and common species may be among the major reasons for the significant positive effects of percent forest cover and emergent plants on Odonata species richness. These results suggest that nestedness helped identify precise habitat characteristics and rare species that should be considered for conservation and restoration of lentic habitats on Amami-Oshima Island.
机译：我们调查了Am美市10个池塘中的Odonata动物区系和栖息地特征（森林覆盖，紧急，淹没，浮叶和漂浮植物覆盖，池塘面积，NO3（-），化学需氧量和有无本地鱼类）。大岛岛。总共发现了6个odonate科的26种，并且我们在池塘中检测到明显的物种组成嵌套（在物种最丰富的池塘中22种，而在物种最贫乏的池塘中8种）。仅在物种最丰富的池塘中发现的物种是：Anax nigrofasciatus nigrofasciatus，panorpoides panorpoides，Agriocnemis famina oryzae，Rhyothemis severini，Anasiaeschna martini，Hemicordulia okinawaensis，Lyriothemis Elegantcrosaceus以及（Hydrobasileus）。通常已知这些稀有物种优先居住在茂盛的萌芽植物池塘中和/或偏爱被森林覆盖遮盖的凉爽栖息地，例如Anax nigrofasciatus nigrofasciatus。马提尼酒，他。冲绳和L. Elegantissima。相比之下，在物种贫乏的池塘中也发现了常见的物种：伊斯尼古拉（Ischnura senegalensis），苦参（Pantala flavescens），胡芦荟（Anax parthenope julis），百变种Ictinogomphus perginx和Tramea verginia，它们被认为更喜欢开放水面作为产卵栖息地。稀有树种和常见树种在生境偏好上的这些差异可能是森林覆盖率和新生植物对Odonata物种丰富度产生显着积极影响的主要原因之一。这些结果表明，嵌套有助于确定precise美大岛岛上的透镜状生境的保护和恢复所应考虑的确切生境特征和稀有物种。

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