The niche of aquatic insect herbivores can be determined by the resource quality of leaf litter species. We compared the niche functional trait of aquatic insect herbivores between Magnolia ovata (riparian tree) and Saccharum officinarum (sugar cane) leaf litter processing. We hypothesized M. ovata and sugar cane leaf litter species would influence different functional traits niche of aquatic insect herbivores due to different quality resource leaves. We performed colonization experiments using dry leaves in five streams during 30–34 days. We utilized five replicates per leaf litter (n = 25) containing 12 g of dry leaves. We compared the niche specialization of herbivore functional traits using the Community Weight Mean (CWM) index and throughout herbivore abundance and the similarity composition of taxa. Additionally, we analysed the influence of organic matter in the CMW index of herbivore functional trait niche. We observed a higher abundance of shredders than scrapers in both leaf litter species. The M. ovata leaf litter selected a more specialized niche of respiration trait composed mainly chironomid shredder larvae, with the osmotic mechanism. The community structure differs weakly with a stronger and positive relationship between organic matter and respiration CWM index in riparian than sugar cane leaf litter. Concerning different composition communities between leaf plants, we consider that aquatic insect herbivore demonstrates a preference to leaf litter species with a specific resource. Additionally, most taxa adapt their feeding habit dependent on the availability of resource food.

中文翻译：

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水生昆虫草食动物功能性状的性状响应河岸和甘蔗叶凋落物加工之间的不同生态位。

水生昆虫食草动物的生态位可以通过凋落物种类的资源质量来确定。我们比较之间的水生昆虫食草动物的利基功能特点玉兰卵形（河岸树）和甘蔗（甘蔗）枯枝落叶处理。我们假设由于不同质量的资源叶，卵形分枝杆菌和甘蔗叶凋落物物种将影响水生昆虫草食动物的不同功能性状生态位。我们在30-34天内使用五片干叶进行了定植实验。我们每个叶子凋落物（n= 25）包含12克干叶。我们使用群落权重均值（CWM）指数以及整个草食动物的丰度和类群的相似性组成，比较了草食动物功能性状的生态位专业化。此外，我们分析了有机质对草食动物功能性状生态位CMW指数的影响。我们观察到，在两种凋落物种类中，碎纸机都比刮板机高。该M.卵形叶凋落物选择了一种更特殊的呼吸性状生态位，主要由拟南芥切丝幼虫组成，具有渗透机制。群落结构差异较小，河岸有机质与呼吸CWM指数之间的关系强于蔗糖凋落物。关于叶植物之间的不同组成群落，我们认为水生昆虫食草动物表现出对具有特定资源的凋落物物种的偏爱。另外，大多数分类单元根据资源食物的可用性来适应其喂养习惯。