Streambed migration frequency drives ecology and biogeochemistry across spatial scales

Ute Risse‐Buhl; Shai Arnon; Edo Bar‐ZeevAnna OpreiAaron I. PackmanIgnacio Peralta‐MaraverAnne RobertsonYoni TeitelbaumMichael Mutz

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Streambed migration frequency drives ecology and biogeochemistry across spatial scales

机译：河床迁移频率在空间尺度上驱动生态学和生物地球化学

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Abstract The bed of fluvial ecosystems plays a major role in global biogeochemical cycles. All fluvial sediments migrate and although responses of aquatic organisms to such movements have been recorded there is no theoretical framework on how the frequency of sediment movement affects streambed ecology and biogeochemistry. We here developed a theoretical framework describing how the moving‐resting frequencies of fine‐grained sediments constrain streambed communities across spatial scales. Specifically, we suggest that the most drastic impact on benthic and hyporheic communities will exist when ecological and biogeochemical processes are at the same temporal scale as the sediment moving‐resting frequency. Moreover, we propose that the simultaneous occurrence of streambed patches differing in morphodynamics should be considered as an important driver of metacommunity dynamics. We surmise that the frequency of patch transition will add new dimensions to the understanding of biogeochemical cycling and metacommunities from micro‐habitat to segment scales. This theoretical framework is important for fluvial ecosystems with frequent sediment movement, yet it could be applied to any other dynamic habitat. This article is categorized under: Water and Life > Nature of Freshwater Ecosystems

机译：摘要河流生态系统中起着的床上全球生物地球化学循环的重要作用。河流沉积物迁移虽然反应水生生物的这种运动记录没有理论框架如何泥沙运动影响的频率河床生态和生物地球化学。描述如何开发了一个理论框架运动还是静止频率细粒度沉积物限制河床社区空间尺度。最激烈的对底栖生物的影响和hyporheic当生态和社区将存在生物地球化学过程在同一时间规模的泥沙运动休息频率。此外,我们建议同时发生的不同在河床补丁自然应该被视为一个metacommunity动力学的重要推动力。推测补丁转换的频率将增加新的维度的理解生物地球化学循环和metacommunities微生境应承担的部分鳞片。框架对河流生态系统很重要泥沙运动频繁,然而它可能是应用于任何其他动态的栖息地。文章分类下:水和生活>淡水生态系统的性质

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《Wiley Interdisciplinary Reviews: Water》 |2023年第3期|n/a-n/a|共13页
作者
Ute Risse‐Buhl; Shai Arnon; Edo Bar‐ZeevAnna OpreiAaron I. PackmanIgnacio Peralta‐MaraverAnne RobertsonYoni TeitelbaumMichael Mutz;
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Helmholtz Centre for Environmental Research;

Zuckerberg Institute for Water Research, The Jacob Blaustein Institutes for Desert Research, Ben‐Gurion University of the Negev;

Brandenburg University of TechnologyNorthwestern UniversityUniversity of GranadaUniversity of Roehampton;

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中图分类水文科学（水界物理学）;
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Streambed migration frequency drives ecology and biogeochemistry across spatial scales

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