洪泛平原湖泊中初级生产者和底栖无脊椎动物对水文变化的不同敏感性

IF 3.3 2区 地球科学 Q2 ENVIRONMENTAL SCIENCES
Linghan Zeng , Stefan Engels , Yanmin Cao , Xianyu Huang , Xu Chen
{"title":"洪泛平原湖泊中初级生产者和底栖无脊椎动物对水文变化的不同敏感性","authors":"Linghan Zeng ,&nbsp;Stefan Engels ,&nbsp;Yanmin Cao ,&nbsp;Xianyu Huang ,&nbsp;Xu Chen","doi":"10.1016/j.ancene.2024.100441","DOIUrl":null,"url":null,"abstract":"<div><p>Floodplain lake ecosystems are hydrologically dynamic and biologically important. Their ecosystem functioning is complex due to the concurrent influence of multiple anthropogenic stressors. Paleolimnological studies focused on a single biotic proxy might lead to biased results, as multiple trophic levels may show different responses to the same driver. In this study, multiple proxies including chlorophyll and carotenoid pigments (indicators of phytoplankton) and chironomids (indicators of invertebrates) were analyzed in a <sup>210</sup>Pb dated sediment core from Luhu Lake (Yangtze floodplain, China). Using these indicators, we investigated how different trophic levels respond to external driving forces (i.e., hydrological alteration represented by K/Al ratios and nutrient influxes indicated by TP) in floodplain lakes. Sedimentary pigments showed that algal production increased in Luhu Lake after the 2000s. The chironomid community shifted from a fauna dominated by <em>Microchironomus tener</em>-type to an assemblage characterized by macrophyte-dwelling taxa (e.g., <em>Tanytarsus</em>, <em>Paratanytarsus</em>, <em>Paratanytarsus penicillatus</em>-type) after the 1970s. Finally, nutrient-tolerant taxa (e.g., <em>Microchironomus tabarui</em>-type) increased in abundance after the 1990s. Redundancy analysis and hierarchical partitioning analysis showed that the increases in algal production were mainly correlated with anthropogenic nutrient influxes, followed by hydrological alteration. In contrast, the transition in the chironomid communities were mainly associated with hydrological alteration, followed by food sources. Our study revealed asynchronous responses of phototrophs and benthic invertebrates to hydrological alteration, highlighting the necessity of analyzing multiple trophic levels to obtain a sophisticate understanding of long-term ecosystem evolution in lotic floodplain lakes which are influenced by multiple stressors. These findings will provide valuable information for the sustainable development, as well as the conservation and restoration of floodplain lakes.</p></div>","PeriodicalId":56021,"journal":{"name":"Anthropocene","volume":null,"pages":null},"PeriodicalIF":3.3000,"publicationDate":"2024-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Divergent sensitivity of primary producers and benthic invertebrates to hydrological alteration in floodplain lakes\",\"authors\":\"Linghan Zeng ,&nbsp;Stefan Engels ,&nbsp;Yanmin Cao ,&nbsp;Xianyu Huang ,&nbsp;Xu Chen\",\"doi\":\"10.1016/j.ancene.2024.100441\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Floodplain lake ecosystems are hydrologically dynamic and biologically important. Their ecosystem functioning is complex due to the concurrent influence of multiple anthropogenic stressors. Paleolimnological studies focused on a single biotic proxy might lead to biased results, as multiple trophic levels may show different responses to the same driver. In this study, multiple proxies including chlorophyll and carotenoid pigments (indicators of phytoplankton) and chironomids (indicators of invertebrates) were analyzed in a <sup>210</sup>Pb dated sediment core from Luhu Lake (Yangtze floodplain, China). Using these indicators, we investigated how different trophic levels respond to external driving forces (i.e., hydrological alteration represented by K/Al ratios and nutrient influxes indicated by TP) in floodplain lakes. Sedimentary pigments showed that algal production increased in Luhu Lake after the 2000s. The chironomid community shifted from a fauna dominated by <em>Microchironomus tener</em>-type to an assemblage characterized by macrophyte-dwelling taxa (e.g., <em>Tanytarsus</em>, <em>Paratanytarsus</em>, <em>Paratanytarsus penicillatus</em>-type) after the 1970s. Finally, nutrient-tolerant taxa (e.g., <em>Microchironomus tabarui</em>-type) increased in abundance after the 1990s. Redundancy analysis and hierarchical partitioning analysis showed that the increases in algal production were mainly correlated with anthropogenic nutrient influxes, followed by hydrological alteration. In contrast, the transition in the chironomid communities were mainly associated with hydrological alteration, followed by food sources. Our study revealed asynchronous responses of phototrophs and benthic invertebrates to hydrological alteration, highlighting the necessity of analyzing multiple trophic levels to obtain a sophisticate understanding of long-term ecosystem evolution in lotic floodplain lakes which are influenced by multiple stressors. These findings will provide valuable information for the sustainable development, as well as the conservation and restoration of floodplain lakes.</p></div>\",\"PeriodicalId\":56021,\"journal\":{\"name\":\"Anthropocene\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.3000,\"publicationDate\":\"2024-06-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Anthropocene\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2213305424000183\",\"RegionNum\":2,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENVIRONMENTAL SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Anthropocene","FirstCategoryId":"89","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2213305424000183","RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
引用次数: 0

摘要

洪泛平原湖泊生态系统具有水文动态和生物重要性。由于同时受到多种人为压力因素的影响,它们的生态系统功能非常复杂。侧重于单一生物代用指标的古气候学研究可能会导致结果偏差,因为多个营养级可能会对同一驱动因素表现出不同的反应。本研究分析了泸沽湖(中国长江洪积平原)210Pb年代沉积物岩芯中的多种代用指标,包括叶绿素和类胡萝卜素色素(浮游植物的指标)以及摇蚊(无脊椎动物的指标)。利用这些指标,我们研究了洪泛平原湖泊中不同营养级如何对外部驱动力(即以 K/Al 比值表示的水文变化和以 TP 表示的营养涌入)做出响应。沉积色素显示,麓湖的藻类产量在 2000 年代后有所增加。摇蚊群落在 20 世纪 70 年代后从以 Tener 型摇蚊为主的动物群落转变为以大型底栖生物(如 Tanytarsus、Paratanytarsus、Paratanytarsus penicillatus-type)为主的群落。最后,耐营养盐类群(例如,Microchironomus tabarui-type)在 20 世纪 90 年代后数量增加。冗余分析和层次分区分析表明,藻类产量的增加主要与人为营养物质流入有关,其次是水文变化。相比之下,摇蚊群落的变化主要与水文变化有关,其次是食物来源。我们的研究揭示了光营养体和底栖无脊椎动物对水文变化的不同步响应,突出了分析多营养级的必要性,从而对受多种压力影响的洪泛平原湖泊生态系统的长期演变有了更深入的了解。这些发现将为洪泛平原湖泊的可持续发展、保护和恢复提供有价值的信息。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Divergent sensitivity of primary producers and benthic invertebrates to hydrological alteration in floodplain lakes

Floodplain lake ecosystems are hydrologically dynamic and biologically important. Their ecosystem functioning is complex due to the concurrent influence of multiple anthropogenic stressors. Paleolimnological studies focused on a single biotic proxy might lead to biased results, as multiple trophic levels may show different responses to the same driver. In this study, multiple proxies including chlorophyll and carotenoid pigments (indicators of phytoplankton) and chironomids (indicators of invertebrates) were analyzed in a 210Pb dated sediment core from Luhu Lake (Yangtze floodplain, China). Using these indicators, we investigated how different trophic levels respond to external driving forces (i.e., hydrological alteration represented by K/Al ratios and nutrient influxes indicated by TP) in floodplain lakes. Sedimentary pigments showed that algal production increased in Luhu Lake after the 2000s. The chironomid community shifted from a fauna dominated by Microchironomus tener-type to an assemblage characterized by macrophyte-dwelling taxa (e.g., Tanytarsus, Paratanytarsus, Paratanytarsus penicillatus-type) after the 1970s. Finally, nutrient-tolerant taxa (e.g., Microchironomus tabarui-type) increased in abundance after the 1990s. Redundancy analysis and hierarchical partitioning analysis showed that the increases in algal production were mainly correlated with anthropogenic nutrient influxes, followed by hydrological alteration. In contrast, the transition in the chironomid communities were mainly associated with hydrological alteration, followed by food sources. Our study revealed asynchronous responses of phototrophs and benthic invertebrates to hydrological alteration, highlighting the necessity of analyzing multiple trophic levels to obtain a sophisticate understanding of long-term ecosystem evolution in lotic floodplain lakes which are influenced by multiple stressors. These findings will provide valuable information for the sustainable development, as well as the conservation and restoration of floodplain lakes.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Anthropocene
Anthropocene Earth and Planetary Sciences-Earth and Planetary Sciences (miscellaneous)
CiteScore
6.30
自引率
0.00%
发文量
27
审稿时长
102 days
期刊介绍: Anthropocene is an interdisciplinary journal that publishes peer-reviewed works addressing the nature, scale, and extent of interactions that people have with Earth processes and systems. The scope of the journal includes the significance of human activities in altering Earth’s landscapes, oceans, the atmosphere, cryosphere, and ecosystems over a range of time and space scales - from global phenomena over geologic eras to single isolated events - including the linkages, couplings, and feedbacks among physical, chemical, and biological components of Earth systems. The journal also addresses how such alterations can have profound effects on, and implications for, human society. As the scale and pace of human interactions with Earth systems have intensified in recent decades, understanding human-induced alterations in the past and present is critical to our ability to anticipate, mitigate, and adapt to changes in the future. The journal aims to provide a venue to focus research findings, discussions, and debates toward advancing predictive understanding of human interactions with Earth systems - one of the grand challenges of our time.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信