巴西塞拉多-亚马逊过渡区溪流生物群落之间的微弱一致性及其与环境梯度的关系

IF 2.2 3区 生物学 Q1 MARINE & FRESHWATER BIOLOGY
Rafaela Jemely Rodrigues Alexandre, Luciano Fogaça de Assis Montag, Karina Dias-Silva, Leandro Schlemmer Brasil, Leonardo Maracahipes-Santos, Joana Darc Batista, Thiago Bernardi Vieira
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引用次数: 0

摘要

代用类群用于寻找指标类群,是评估生物多样性的一种快速有效的方法。要使代群有效,不同或相似的代群之间必须具有很强的一致性。在这一森林砍伐率较高的地区,了解代用组对于避免或尽量减少生物多样性的丧失极其重要,因为生物多样性正受到严重威胁。这项研究的目的是评估亚马逊--塞拉多过渡地区溪流中鱼类群落、异翅目动物和鸟纲动物之间的一致性。结果表明,在两组数据中,鸟纲和异翅类之间的一致性较弱。在丰度数据中,不一致的蜻蜓和鱼类表现出微弱但显著的一致性,而在发生率数据中,一致性并不显著。对鱼类和异翅类的分析也得出了类似的结果,它们与所使用的任何数据集都不一致。利用丰度数据进行的方差分区检验表明,环境和空间变化是异翅类群落结构形成的原因,与鱼类不同,而通过发病率和丰度数据验证的任何变化都没有对鸟纲做出反应,表明与环境和空间变化没有关系。这表明该地区的代用类群为鸟纲。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Weak congruence between biological assemblages of streams and their relationship with the environmental gradient in the Cerrado–Amazon transition area, Brazil

Weak congruence between biological assemblages of streams and their relationship with the environmental gradient in the Cerrado–Amazon transition area, Brazil

Surrogate groups are used to find indicator groups and are a fast and effective way to assess biodiversity. For a surrogate group to be efficient, it needs to have strong congruence between different or similar groups. Understanding the surrogate groups in this area with high deforestation rates is extremely important to avoid or minimize the loss of biodiversity, which is severely threatened. The objective was to evaluate the congruence between fish assemblages, Heteroptera, and Odonata in streams in the Amazon–Cerrado transition area. The results showed weak congruence between Odonata and Heteroptera for both data sets. Discordant Odonata and fish showed weak but significant congruence with the abundance data, and with the incidence data the congruence was not significant. A similar result was obtained in the analysis of fish and Heteroptera, which were not congruent with any of the data sets used. The variance partition test, with abundance data, showed that both environmental and spatial variations are responsible for structuring the Heteroptera community, diverging from fish and Odonata did not respond to any of the variations verified, with incidence and abundance data, showing no relationship with environmental and spatial variations. Suggesting Odonata as a surrogate group for this region.

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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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