Effects of hydrological cycles and water body connectivity on abundance and co-occurrence of two Neotropical Curculionidae species

IF 1 4区环境科学与生态学 Q3 BIODIVERSITY CONSERVATION Biota Neotropica Pub Date : 2022-01-01 DOI:10.1590/1676-0611-bn-2021-1249

W. O. Sousa, Nelson Vinicius Sabino Serra, G. B. D. Santos, R. Aranda, M. I. Marques

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Abstract

Abstract: The effect of the hydrological cycle on the abundance of adults and larvae of the weevils Cyrtobagous salviniae and Cyrtobagous singularis in the Pantanal was tested and related to the host-plant abundance, limnological variables, and hydrological connectivity of 10 “bays” (lakes and ponds) along the Cuiabá River. Adults and larvae of C. salviniae were more abundant than C. singularis, and larvae and adult abundance differed significantly both within and between the two species. Adults and larvae of both species were more abundant in connected bays, but only C. salviniae responded to both connectivity and hydrological cycle, with the highest abundances during the high-water and rising-water periods for adults and larvae, respectively. Abundance of C. singularis was negatively related to the predominance of C. salviniae, and populations of adults and larvae of both species were slightly and negatively related to the limnological variables and host-plant abundance. The results showed that the temporal variation in larval and adult abundance and dominance of C. salviniae is influenced by hydrological cycle and connectivity, but not by limnological variables and host-plant abundance.

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水文循环和水体连通性对两种新热带弯尾科物种丰度和共生的影响

摘要/ Abstract摘要:研究了水文循环对潘塔纳尔河流域Cyrtobagous salviniae和Cyrtobagous singularis象甲成虫和幼虫丰度的影响，并将其与库亚布河沿岸10个“湾”(湖泊和池塘)的寄主植物丰度、湖泊变量和水文连通性联系起来。鼠尾草成虫和幼虫的丰度均高于奇点鼠尾草，且两种内和种间幼虫和成虫丰度差异显著。在连通的海湾中，两种成虫和幼虫的丰度都更高，但只有萨尔维尼鱼对连通性和水循环都有响应，成虫和幼虫的丰度分别在涨潮期和高潮期最高。黄颡鱼的丰度与黄颡鱼的优势度呈负相关，成虫和幼虫种群与湖泊变量和寄主植物丰度呈轻微负相关。结果表明，沙竹幼虫和成虫丰度和优势度的时间变化受水循环和连通性的影响，而不受湖泊变量和寄主植物丰度的影响。

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来源期刊

Biota Neotropica BIODIVERSITY CONSERVATION-

CiteScore

2.90

自引率

16.70%

发文量

审稿时长

4-8 weeks

期刊介绍： BIOTA NEOTROPICA is an electronic, peer-reviewed journal edited by the Program BIOTA/FAPESP: The Virtual Institute of Biodiversity. This journal"s aim is to disseminate the results of original research work, associated or not to the program, concerned with characterization, conservation and sustainable use of biodiversity within the Neotropical region. Manuscripts are considered on the understanding that their content has not appeared, or will not be submitted, elsewhere in substantially the same form, because once published their copyrights are transferred to BIOTA NEOTROPICA as established in the Copyright Transfer Agreement signed by the author(s).