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May 30, 2026Water Biology and SecurityOpen Access

Stochastic processes determine community assembly of benthic macroinvertebrates in a boreal river basin of northern China

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Authors

YLYiming LiuJZJinrui ZhangWWWenwen Wang

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Overview

Randomized trial investigates community assembly in freshwater ecosystems, suggesting significant effects of stochastic processes.

Key Points

  • This study aims to understand how stochastic and deterministic processes shape benthic macroinvertebrate community assembly in a boreal river basin.
  • Analyzed community structure at 295 survey stations across the Tumen River Basin.
  • Employed quantitative analyses, including Neutral Community Model and various indices to examine community assembly processes.
  • Evaluated effects of environmental factors such as nitrogen levels and flow characteristics on community dynamics.
  • Stochastic processes primarily govern assembly, with drift contributing 86.5% of observed patterns.
  • Beta-diversity significantly influenced by environmental factors including total nitrogen and flow rate.
  • Deterministic processes were dominant in Plecoptera communities, with increasing stochastic influence from human activity.

Cite This Study

Liu et al. (2026) studied this question.

synapsesocial.com/papers/6a1a7f230307b78509431755https://doi.org/10.1016/j.watbs.2026.100656
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