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Characterization and predictors of the zooplankton community in the Veredas wetlands in Brazilian savanna
Wetlands Ecology and Management ( IF 1.8 ) Pub Date : 2023-08-28 , DOI: 10.1007/s11273-023-09944-1
Vanessa Guimarães Lopes , Rosângela Gama Strutz , Luciano B. Lima , Cleide Carnicer , Fagner Junior M. Oliveira , Dilermando Pereira Lima-Junior

Vereda is a wetland ecosystem typical of the Cerrado biome characterized by diverse vegetation with dynamic and transitional areas of riparian forests, gallery forests, flooded forests, and humid grassland. In general, they are associated with controlling the flow of the water table, carbon storage, and high biodiversity and are essential to the maintenance of most rivers in the Cerrado biome. Besides that, Vereda is poorly studied, especially zooplanktonic groups. To lessen this knowledge gap, we evaluated the effects of seasonality and environmental predictors on the zooplanktonic community of Vereda. For that, we sampled zooplanktonic assemblages in the Veredas in the dry and wet seasons. We found environmental influence but not for the zooplankton community. The characteristic low conductivity seems to be an important environmental filter for zooplankton species occurrence in these systems, since the Veredas that registered major levels of richness and density were those with high electrical conductivity. Highlighting that some zooplankton species with a more restricted distribution were detected in this study: Acroperus tupinamba, which occurs in Brazil and Ecuador; Monospilus sp., for which only two species of this genus were registered in Brazil, both with restricted distribution, found thus far in only two protected areas of the Cerrado biome.



中文翻译:

巴西稀树草原 Veredas 湿地浮游动物群落的特征和预测

韦雷达是塞拉多生物群落的典型湿地生态系统,其特点是植被多样化,有河岸森林、廊道森林、水淹森林和潮湿草原等动态和过渡区域。一般来说,它们与控制地下水位流量、碳储存和高生物多样性有关,对于维持塞拉多生物群落中的大多数河流至关重要。除此之外,对维雷达的研究很少,尤其是浮游动物群体。为了缩小这一知识差距,我们评估了季节性和环境预测因素对维雷达浮游动物群落的影响。为此,我们对维雷达斯群岛的浮游动物组合进行了采样在干燥和潮湿的季节。我们发现了环境影响,但没有发现浮游动物群落的影响。特征性的低电导率似乎是这些系统中浮游动物物种发生的重要环境过滤器,因为记录了主要丰富度和密度水平的Veredas是那些具有高电导率的。强调在这项研究中发现了一些分布更受限的浮游动物物种:Acroperus tupinamba,分布在巴西和厄瓜多尔;Monospilus sp. 在巴西仅登记了该属的两种物种,且分布范围有限,迄今为止仅在塞拉多生物群落的两个保护区中发现。

更新日期:2023-08-28
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