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首页> 外文期刊>Anais da Academia Brasileira de Ciencias >The role of phytophysiognomies and seasonality on the structure of ground-dwelling anuran (Amphibia) in the Pampa biome, southern Brazil
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The role of phytophysiognomies and seasonality on the structure of ground-dwelling anuran (Amphibia) in the Pampa biome, southern Brazil

机译：植物生理学和季节性对巴西南部潘帕生物群落中地面无脊椎动物（Amphibia）结构的作用

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ABSTRACTConsidering that habitat use by amphibians is related both with climate and environmental features, we tested the hypothesis that anuran assemblages found in different phytophysiognomies and in different seasons vary in structure. Additionally, we searched for species which can be indicators of habitat and seasons. The study was conducted in the Pampa biome, southern Brazil. Sampling was done through pitfall traps placed in three phytophysiognomies: grassland, ecotone grassland/forest; and forest. The seasonality factor was created by grouping months in warn and cold seasons. Sixteen species were found and the assemblages were influenced both by phytophysiognomies and climatic seasonality. In a paired comparison, the three phytophysiognomies differed in structure of assemblage from each other. Physalaemus henselii, P. riograndensis, Pseudopaludicola falcipes and Pseudis minuta were indicators of ecotone. Leptodactylus gracilis and Physalaemus biligonigerus were indicators of grassland. None species was indicator of forest. Most of the species were indicators of warm season: Elachistocleis bicolor, Leptodactylus fuscus, L. gracilis, L. latinasus, L. latrans, L. mystacinus, Physalaemus biligonigerus, P. cuvieri and Pseudis minuta. None species was indicator of cold season. We found that even for species of open areas, as Pampa, heterogeneous phytophysiognomies are important for maintaining abundance and constancy of populations of anuran.
机译：摘要考虑到两栖动物的栖息地使用与气候和环境特征都有关，我们检验了在不同植物生理学和不同季节中发现的无环鸟集合体结构不同的假说。此外，我们搜索了可以作为栖息地和季节指标的物种。该研究在巴西南部的潘帕生物群落中进行。通过设在三个植物生理学上的陷阱陷阱进行采样：草地，过渡带草地/森林;和森林。季节性因素是通过将警告季节和寒冷季节的月份分组来创建的。发现了十六种，并且组合受到植物生理学和气候季节的影响。在成对的比较中，三个植物生理学在组装结构上彼此不同。汉生Phys草，riograndensis，恶臭假单胞菌和小假单胞菌是过渡带的指标。细叶小脚and和草是草地的指标。没有物种是森林的指标。大部分物种是温暖季节的指示：双色的棘皮动物，淡紫色的Leptodactylus fuscus，纤细的L. gracilis，L。latinasus，L。latrans，L。mystacinus，Physalaemus biligonigerus，P。cuvieri和Pseudis minuta。没有一个物种指示寒冷季节。我们发现，即使对于像潘帕这样的开阔地带的物种，异质植物生理学对于维持无尾果种群的丰度和恒定性也很重要。

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