Soil invertebrate fauna enhances grassland succession and diversity
Soil invertebrate fauna enhances grassland succession and diversity
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DOI：
10.1038/nature01548
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发表时间：
2003-04-17
期刊：
影响因子：
64.8
通讯作者：
van der Putten, WH
中科院分区：
文献类型：
--
作者：
De Deyn, GB;Raaijmakers, CE;van der Putten, WH
生态学最重要的领域之一是阐明驱动生态系统演替并从而影响自然植被物种多样性的因素。已知该过程中的重要机制是资源限制(1-3) 和地上脊椎动物食草动物的影响(4,5)。最近，共生和病原土壤微生物已被证明对植被的组成 (6-9) 及其变化产生深远的影响 (10,11)。然而，无脊椎动物土壤动物对演替的影响迄今为止很少受到关注(12,13)。在这里，我们报告无脊椎动物土壤动物可能会增强次生演替和当地植物物种多样性。来自一系列次生草地演替阶段的土壤动物群选择性地抑制早期演替的优势（14）植物物种，从而提高了从属（14）物种以及后期演替阶段物种的相对丰度。演替中期土壤动物的影响最强。我们的结果清楚地表明，土壤动物强烈影响自然植被的组成，我们认为这些知识可能会改善植物物种多样性的恢复和保护。
One of the most important areas in ecology is to elucidate the factors that drive succession in ecosystems and thus influence the diversity of species in natural vegetation. Significant mechanisms in this process are known to be resource limitation(1-3) and the effects of aboveground vertebrate herbivores(4,5). More recently, symbiotic and pathogenic soil microbes have been shown to exert a profound effect on the composition of vegetation(6-9) and changes therein(10,11). However, the influence of invertebrate soil fauna on succession has so far received little attention(12,13). Here we report that invertebrate soil fauna might enhance both secondary succession and local plant species diversity. Soil fauna from a series of secondary grassland succession stages selectively suppress early successional dominant(14) plant species, thereby enhancing the relative abundance of subordinate(14) species and also that of species from later succession stages. Soil fauna from the mid-succession stage had the strongest effect. Our results clearly show that soil fauna strongly affects the composition of natural vegetation and we suggest that this knowledge might improve the restoration and conservation of plant species diversity.