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首页> 外文期刊>Caldasia >Comunidades de briófitos terrestres relacionados con factores climáticos y topográficos en un páramo del sur de Ecuador
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Comunidades de briófitos terrestres relacionados con factores climáticos y topográficos en un páramo del sur de Ecuador

机译：与厄瓜多尔南部的气候和地形因素有关的陆地布罗布尔的社区

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摘要

Paramos have high species diversity and a high proportion of endemic species and are of major importance for hydrological regulation of the environment. However, they are highly threatened by agriculture and cattle grazing. Bryophytes are an important component of paramo in terms of diversity and biomass as well as the functioning of paramo ecosystems. These poikilohydric organisms are very sensitive to microclimate changes related to humidity and light availability. We studied the influence of climate and topography on the diversity of terrestrial bryophytes in three summit areas in the paramo of Parque Nacional Podocarpus, Ecuador. In each area we established eight plots of 1 × 1 m and registered the presence and cover of terrestrial bryophyte species. Differences in species composition among the three areas were analyzed with non-metric multidimensional scaling analysis (NMDS), climatic and topographic effects with multivariate analysis based on permutations (PERMANOVA). We found that differences in terrestrial bryophyte community composition correlated with precipitation and slope. Highest diversity was found in areas with the highest precipitation, least slope steepness, and highest soil moisture.?
机译：Paramos具有高物种多样性和高比例的流动物种，对环境的水文调节具有重要意义。然而，他们受到农业和牛放牧的威胁。在多样性和生物量以及Paramo Ecosystems的功能方面，苔藓植物是Paramo的重要组成部分。这些点毒性生物对与湿度和光可用性相关的微气密变化非常敏感。我们研究了气候和地形对厄瓜多尔露天帕帕尔帕帕帕帕帕帕摩披露地区陆地苔藓植物多样性的影响。在每个区域，我们建立了八个1×1米的曲线，并注册了陆生物体物种的存在和掩护。用非公制多维缩放分析（NMDS），基于排列（alplenova）的多变量分析，分析了三个区域中的物种组成的差异。我们发现陆地苔藓群落组合物与沉淀和坡度相关的差异。在具有最高沉淀，最小坡度陡度和最高土壤水分的地区发现最高的多样性。

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