Soil nematode biodiversity in terrestrial ecosystems
Soil nematode biodiversity in terrestrial ecosystems
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DOI：
10.1023/a:1008852301349
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发表时间：
1998-05-01
影响因子：
3.4
通讯作者：
Yeates, GW
中科院分区：
文献类型：
--
作者：
Boag, B;Yeates, GW
对土壤栖息线虫的线虫多样性（=已鉴定的物种数量）的文献进行了回顾，并根据距赤道的距离、植被类型和采样工作进行了分析。对采样工作应用校正因子后，结果表明，温带阔叶林的物种丰富度最高（每个样本 61.7 个物种），其次是耕地、草原、热带雨林、温带针叶林和极地植被。耕作土壤中高度生物多样性的维持是出乎意料的，但可能反映了计算许多指数时的主导地位的影响。物种丰富度在纬度 30-40 度之间最高（每个样本 93.9 个物种），在 70 度以上最低，赤道附近（即 0-10 度）的平均丰富度为每个样本 80.6 个物种。虽然这些数据表明，线虫多样性不一定在赤道处最大，并且支持物种丰富度“驼背”理论的证据也不是决定性的，但它们与线虫多样性随着纬度增加而增加的建议相矛盾。
A review of the literature on nematode diversity (= number of species identified) of soil inhabiting nematodes was undertaken and analysed with regard to distance from the equator, vegetation type and sampling effort. After applying a correction factor for sampling effort the results indicated that species richness was greatest in temperate broadleaf forest (61.7 species per sample) followed by cultivated soil, grassland, tropical rainforest, temperate coniferous forests and polar vegetation. The maintenance of high biodiversity in cultivated soils is unexpected but may reflect the impact of dominance in calculating many indices. Species richness was greatest between latitudes 30-40 degrees (93.9 species per sample) and least above 70 degrees, the mean richness near the equator (i.e. 0-10 degrees) was 80.6 species per sample. While these data would suggest that nematode diversity is not necessarily greatest at the equator, and evidence to support a 'humped back' theory of species richness is not conclusive, they contradict the suggestion that nematode diversity increases with increased latitude.