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首页> 外文期刊>Ecotropica >Abiotic factors controlling species richness, diversity, and abundance in the bromeliad Hohenbergia polycephala (Bromeliaceae).
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Abiotic factors controlling species richness, diversity, and abundance in the bromeliad Hohenbergia polycephala (Bromeliaceae).

机译：非生物因素控制凤梨科植物凤梨科的凤梨科的物种丰富度，多样性和丰度。

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摘要

We investigated invertebrate communities of aquatic microcosms created by leaf axils of the bromeliad plant Hohenbergia polycephala in order to detect abiotic and biotic determinants of species richness, diversity, and abundance. We found a total of 15 species from 83 invertebrate communities formed in tanks on 36 bromeliad plants on the north coast of Jamaica. Tank volume, depth, temperature, dissolved oxygen concentration, and levels of leaf litter differed according to the relative age of the bromeliad tank. Species richness and diversity did not differ with relative tank age, however abundances of a midge and a mosquito species did. Species richness (S), and both Shannon-Wiener and Simpson's diversity indices were best explained by independent PCA factors involving leaf litter, water volume, dissolved oxygen concentrations, and tank light levels. However, community structure, in general, was poorly explained by the physical attributes of tanks. It appears that a complex combination of several abiotic and biotic factors (including possible priority effects) influences community composition in these microcosms.
机译：我们调查了凤梨植物 Hohenbergia polycephala 的叶腋产生的水生世界无脊椎动物群落，以检测物种丰富度，多样性和丰度的非生物和生物决定因素。我们在牙买加北海岸的36种凤梨科植物的水箱中发现了来自83个无脊椎动物群落的总共15种。罐的体积，深度，温度，溶解氧浓度和枯枝落叶的水平根据凤梨罐的相对年龄而异。物种的丰富度和多样性与相对槽龄无关，但是蚊和蚊的丰富度却不同。物种丰富度（S）以及Shannon-Wiener和Simpson的多样性指数都可以通过独立的PCA因子得到最好的解释，这些因子涉及叶片凋落物，水量，溶解氧浓度和罐内光照水平。但是，一般而言，坦克的物理属性无法很好地解释社区结构。看来，几种非生物和生物因素（包括可能的优先效应）的复杂组合会影响这些微观世界的群落组成。

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