Trophic relationships among terrestrial molluscs in a Hawaiian rain forest: analysis of carbon and nitrogen isotopes
Trophic relationships among terrestrial molluscs in a Hawaiian rain forest: analysis of carbon and nitrogen isotopes
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夏威夷雨林中陆地软体动物之间的营养关系：碳和氮同位素分析
DOI：
10.1017/s0266467411000058
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发表时间：
2011
影响因子：
1.4
通讯作者：
Norine W. Yeung
中科院分区：
文献类型：
--
作者：
W. M. Meyer;Norine W. Yeung
土壤和邻近的落叶环境支持不同的分解动物。这导致了所谓的“土壤动物之谜”，或者说，在没有明显的生物机制（如竞争排斥、限制共存）的情况下，如此大量的物种如何可能共存的问题（安德森，1975年）。食物专门化或食物资源的有效分配可能是避免同域土壤/凋落物物种之间生态位重叠的一种机制（Chahartaghi等人，2005年; Jennings和Barkham，1975年）。然而，解开营养关系的复杂性可能是困难的，特别是在土壤/落叶栖息地，消费者和猎物都是小，多样的，往往无法识别（Scheu和Falca 2000）。因此，这些栖息地中物种之间的营养关系通常仍然没有得到解决。
Soil and adjacent leaf-litter environments support a diverse decomposer fauna. This has led to what is known as ‘the enigma of the soil fauna’, or the question of how it is possible for such large numbers of species to coexist without obvious biotic mechanisms, such as competitive exclusion, limiting coexistence (Anderson 1975). Dietary specialization or effective partitioning of food resources could be a mechanism to avoid niche overlap among sympatric soil/litter species (Chahartaghi et al. 2005, Jennings & Barkham 1975). However, unravelling the complexities of trophic relationships can be difficult, especially in soil/leaf-litter habitats where both consumers and prey are small, diverse and often unidentifiable (Scheu & Falca 2000). As such, the trophic relationships among species in these habitats typically remain unresolved.