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Diet of invertebrates sampled in leaf-bags incubated in a tropical headwater stream

机译：在热带源水流中孵化的叶袋中采样的无脊椎动物饮食

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The diet of macroinvertebrates sampled in leaf-bags incubated in a tropical stream was analyzed on a spatial scale (one forested and one deforested area) and on a temporal scale (dry and rainy seasons). The macroinvertebrates were mostly represented by detritivores specialized in fine detritus (69%), followed by generalist detritivores (10% with a diet based on fine and coarse detritus), carnivores (10%), omnivores (8%), and one detritivore genera specialized on coarse detritus (3%). The detritivores exhibited a broad spatial and temporal distribution and were represented mainly by Ephemeroptera, Trichoptera and Diptera. Phylloicus sp. (Trichoptera) consumed mostly coarse detritus (CPOM) and can be classified as the unique specialist shredder in this stream. Carnivores were represented by Anacroneuria sp. (Plecoptera), Hetaerina sp. and Heteragrion sp. (two Odonata). Omnivory was observed for Anacroneuria sp. and Smicridea sp. (Trichoptera), which evidently varied spatially and temporally in the proportion of the food consumed. The high diversity and the wide distribution of the taxa that used organic matter as food resource demonstrated the great importance of this food item to the macroinvertebrates community in this tropical stream.
机译：在空间规模（一个有森林和一个森林被砍伐的区域）和时间范围（干旱和雨季）上分析了在热带河流中温育的叶袋中取样的大型无脊椎动物的饮食。大型无脊椎动物主要由细碎屑专门化的碎屑为代表（69％），其次为通才碎屑（以细碎屑和粗碎屑为基础的饮食占10％），食肉动物（10％），杂食性（8％）和一个碎屑属专攻粗碎屑（3％）。碎屑动物表现出广泛的时空分布，主要表现为星翅目，毛鳞翅目和双翅目。毛竹（Trichoptera）主要消耗粗碎屑（CPOM），并且可以将其分类为该流中唯一的专业碎纸机。食肉动物以Anacronouria sp。为代表。 （鞘翅目），Hetaerina sp。和Heteragrion sp。 （两个Odonata）。杂食性被发现为无肛门菌。和Smicridea sp。 （Trichoptera），其食物消耗比例显然在空间和时间上有所不同。使用有机物作为食物资源的生物分类的高度多样性和广泛分布，证明了该食物对这一热带小流域大型无脊椎动物群落的重要性。

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