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首页> 外文期刊>Biotropica >Avian composition co-varies with floristic composition and soil nutrient concentration in Amazonian upland forests.
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Avian composition co-varies with floristic composition and soil nutrient concentration in Amazonian upland forests.

机译：亚马逊山地森林鸟类组成随植物组成和土壤养分含量而变化。

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Spatial heterogeneity in the plant species composition of tropical forests is expected to influence animal species abundance and composition because vegetation constitutes the primary habitat feature for forest animals. Floristic variation is tied to variation in soils, so edaphic properties should ultimately influence animal species composition as well. The study of covariation in floristic and faunistic turnover has been hindered by the difficulty of completing coordinated surveys in hyperdiverse tropical communities, but this can be overcome with the use of a few plant taxa that function as surrogates for general floristic turnover. We used avian and plant transect surveys and soil sampling in a western Amazonian upland (terra firme) forest landscape to test whether spatial variation in bird community composition is associated with floristic turnover and corresponding edaphic gradients. Partial Mantel tests and Non-metric Multidimensional Scaling showed floristic distinctiveness between two forest types closely associated with differences in soil cation concentrations, and differences in both floristic composition and cation concentrations were further linked to compositional differences in avian species, independent of geographic distances among sites. Ten percent of bird species included in Indicator Species Analyses showed significant associations with one of the two forest types. The upland forest types that we sampled, each corresponding to a different geological formation, are intermediate relative to edaphically extreme environments in the region. Models of avian diversification should take into account this environmental heterogeneity, as should conservation planning approaches that aim to represent faunal diversity.Digital Object Identifier http://dx.doi.org/10.1111/j.1744-7429.2011.00851.x
机译：由于植被是森林动物的主要生境特征，热带森林植物物种组成中的空间异质性预计会影响动物物种的丰度和组成。植物区系的变化与土壤的变化有关，因此，深层特性最终也将影响动物的物种组成。由于在高多样性热带群落中完成协调调查的困难，阻碍了对植物区系和植物群落更新协变的研究，但是可以通过使用一些植物类群作为一般植物更新的替代品来克服这一困难。我们使用鸟类和植物横断面调查以及亚马逊西部高地（ terra firme ）森林景观中的土壤采样来测试鸟类群落组成的空间变化是否与植物更新和相应的深层梯度相关。局部Mantel试验和非度量多维标度显示，两种森林之间的植物区系特征与土壤阳离子浓度的差异密切相关，并且植物种类和阳离子浓度的差异进一步与禽类的物种差异相关，而与地点之间的地理距离无关。指标物种分析中包括的鸟类物种中有10％与两种森林类型之一显示出显着关联。我们所采样的山地森林类型（分别对应于不同的地质构造）相对于该地区的教育极端环境而言处于中等水平。鸟类多样化模型应考虑到这种环境异质性，旨在代表动物多样性的保护规划方法也应考虑在内。数字对象标识符http://dx.doi.org/10.1111/j.1744-7429.2011.00851.x

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