The feeding habits of collembola along decomposition gradients using stable carbon and nitrogen isotope analyses

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• 作者：Takuo Hishi ; Fujio Hyodo ; Seikoh Saitoh ; Hiroshi Takeda
• 关键词：Collembola ; Decomposition gradient ; Feeding habit ; Resource partitioning ; Stable C and N isotope
• 刊名：Soil Biology & Biochemistry
• 出版年：2007
• 出版时间：July 2007
• 年：2007
• 卷：39
• 期：7
• 页码：1820-1823
• 全文大小：148 K

文摘

We measured the natural stable carbon (C) and nitrogen (N) isotope ratio patterns of collembola and the organic substrates of their habitats and potential food sources in a warm temperate coniferous forest. Based on previous studies, we classified collembola into successional classes along litter decomposition gradients: early colonizers, late colonizers, and dominants-throughout. The stable C and N isotope ratios of late colonizers exceeded those of early colonizers, and those of the dominants-throughout were intermediate between early and late colonizers, which is consistent with previous studies on two macro-invertebrates, earthworms and termites. The C and N isotopic signature differences in collembola may reflect food resource partitioning along decomposition gradients.