Aquatic macroinvertebrate communities are dependent on intrinsic environmental characteristics and biological interactions in microhabitat systems. We investigated the species–area relationships, detritus content input and trophic interactions of macroinvertebrate fauna in 46 Vrieseae friburguensis in a “Restinga” environment. Our hypotheses are that (i) bromeliad water volume and detritus content would positively affect the macroinvertebrate richness and abundance; (ii) predators would exercise a top-down effect on macroinvertebrates community; but (iii) will control the prey in different ways, due to the preference to occupy and stay in a spatial position on the bromeliad tank. We found 2201 macroinvertebrates from 18 taxa (12 preys and 6 predators). Higher water volume, detritus content and bromeliad area increased the richness and abundance of macroinvertebrates. Culicidae (swimming preys) coexist with predators due to the segregation in the use of the water column caused by the presence of Chironomidae (browsing preys). The opposite response of browsing and swimming preys to predator abundance suggests that trophic interactions are more important to swimming preys than for browsing ones, and this latter is more related to abiotic factors. Therefore, abiotic factors (mainly, water volume) and trophic interactions (abundance of predators) drive the macroinvertebrate community of bromeliad tanks in the studied Neotropical Restinga.

中文翻译：

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非生物因素和营养相互作用影响新热带Restinga凤梨科坦克的大型无脊椎动物群落

水生大型无脊椎动物群落取决于微生境系统内在的环境特征和生物相互作用。我们调查了46种弗里斯伯弗里斯堡族无脊椎动物的物种-区域关系，碎屑含量输入和营养相互作用在“ Restinga”环境中。我们的假设是：（i）凤梨的水量和碎屑含量将对大型无脊椎动物的丰富度和丰度产生积极影响；（ii）捕食者将对大型无脊椎动物社区产生自上而下的影响；但是（iii）由于倾向于在凤梨鱼缸中占据并停留在一定的空间位置，因此它们将以不同的方式控制猎物。我们从18个分类单元（12个猎物和6个食肉动物）中发现了2201个大型无脊椎动物。较高的水量，碎屑含量和凤梨科面积增加了大型无脊椎动物的丰富度和丰度。Chi科（游猎猎物）与捕食者共存，这是由于使用ron科（捕食猎物）导致水柱在使用中的隔离。浏览和游泳的猎物对捕食者数量的相反反应表明，营养相互作用对游泳的猎物比浏览的猎物更重要，而后者与非生物因素更相关。因此，非生物因素（主要是水量）和营养相互作用（大量捕食者）驱使所研究的新热带雷丁格州的凤梨缸的大型无脊椎动物群落。