Ecological perspectives on the organization of biodiversity in Neotropical streams

IF 2.2 3区 生物学 Q1 MARINE & FRESHWATER BIOLOGY
Francisco Valente-Neto, José L. S. Mello, Gabrielle C. Pestana, Erika M. Shimabukuro, Alexandre S. de Siqueira, Alan P. Covich, Victor S. Saito
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引用次数: 0

Abstract

Neotropical streams stand as one of the most biodiverse aquatic ecosystems in the world. The extremely high biodiversity of these ecosystems was generated and modified by several geological events, major climatic changes, and complex ecological mechanisms. Here we synthesize ecological concepts that influence the organization of Neotropical stream biodiversity. We analyze the ecological processes from three perspectives: horizontal (i.e., competition between species), vertical (i.e., trophic organization), and regional perspectives (i.e., environmental selection, stochasticity and dispersal). Our review highlights that Neotropical streams are understudied compared to other regions considering the three ecological perspectives and the human impacts on these ecosystems. The lack of studies in the horizontal perspective is prominent compared to the other perspectives. Overall, our knowledge of the biodiversity and dynamics of Neotropical streams is concentrated on the regional perspective and especially on the anthropogenic impacts on aquatic biodiversity. We identify some gaps in knowledge and conclude that the ecology of Neotropical streams is rapidly changing in the face of the current environmental crisis generated by multiple disturbances. These results indicate an urgent need for integrated ecological studies of Neotropical streams, considering their high global proportion of biodiversity and the multiple services these ecosystems support.

Abstract Image

从生态学角度看新热带溪流生物多样性的组织结构
新热带溪流是世界上生物多样性最丰富的水生生态系统之一。这些生态系统极高的生物多样性是由若干地质事件、重大气候变化和复杂的生态机制产生和改变的。在此,我们综合了影响新热带溪流生物多样性组织的生态学概念。我们从三个角度分析了生态过程:横向(即物种之间的竞争)、纵向(即营养组织)和区域角度(即环境选择、随机性和扩散)。我们的综述强调,考虑到这三个生态视角以及人类对这些生态系统的影响,与其他地区相比,对新热带溪流的研究不足。与其他视角相比,横向视角的研究尤为缺乏。总体而言,我们对新热带溪流生物多样性和动态的了解主要集中在区域视角,尤其是人类活动对水生生物多样性的影响。我们发现了一些知识空白,并得出结论认为,面对当前由多种干扰引发的环境危机,新热带溪流的生态正在迅速发生变化。这些结果表明,考虑到新热带溪流在全球生物多样性中所占比例较高以及这些生态系统所提供的多种服务,迫切需要对这些溪流进行综合生态研究。
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来源期刊
Hydrobiologia
Hydrobiologia 生物-海洋与淡水生物学
CiteScore
5.40
自引率
11.50%
发文量
288
审稿时长
4.9 months
期刊介绍: Hydrobiologia publishes original research, reviews and opinions regarding the biology of all aquatic environments, including the impact of human activities. We welcome molecular-, organism-, community- and ecosystem-level studies in contributions dealing with limnology and oceanography, including systematics and aquatic ecology. Hypothesis-driven experimental research is preferred, but also theoretical papers or articles with large descriptive content will be considered, provided they are made relevant to a broad hydrobiological audience. Applied aspects will be considered if firmly embedded in an ecological context.
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