Differential utilization of root-derived carbon among collembolan species
Differential utilization of root-derived carbon among collembolan species
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DOI：
10.1016/j.pedobi.2016.05.001
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发表时间：
2016-01-01
期刊：
影响因子：
2.3
通讯作者：
Takeda, Hiroshi
中科院分区：
文献类型：
--
作者：
Fujii, Saori;Mori, Akira S.;Takeda, Hiroshi
我们进行了（CO2）-C-13脉冲标记实验，以跟踪最近同化的碳（C）从木本植物转移到土壤微型节肢动物。我们调查了6种不同的形态特征和垂直分布的弹尾目植物的根源C的利用。虽然生活在深层土壤中的物种，如腐殖土和矿质土壤，传统上被认为与植物根系有密切的关系，但我们发现，即使是栖息在凋落物层的物种也利用根源C。此外，我们发现种间差异，根系来源的C利用之间的物种生活在同一土壤层。这一结果表明，跳虫物种表现出相同的垂直分布有种特定的功能作用，在土壤过程中，这与以前接受的观点，他们是相对多余的，在他们的地下功能与他们的饮食性状。(C)2016 Elsevier GmbH. All rights reserved.
We conducted a (CO2)-C-13 pulse-labeling experiment to trace the transfer of recently assimilated carbon (C) from woody plants to soil microarthropods. We investigated the utilization of root-derived C for six species of Collembola that differ in terms of their morphological traits and vertical distributions. Although species living in deeper soil layers, such as humus and mineral soil, have traditionally been considered to have close relationships with plant roots, we showed that even species that inhabit the litter layer utilized root-derived C. Additionally, we found interspecific differences in root-derived C utilization among species living in the same soil layer. This result suggests that collembolan species exhibiting the same vertical distribution have species-specific functional roles in soil processes, which contrasts with the previously accepted view that they are relatively redundant in terms of their belowground functions related to their dietary traits. (C) 2016 Elsevier GmbH. All rights reserved.