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April 12, 2026SustainabilityOpen Access

Cascade Dam Development Restructures Multi-Trophic Aquatic Communities Through Environmental Filtering in the Hanjiang River, the Largest Tributary of the Yangtze, China

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Authors

LSLaiyin ShenTMTeng MiaoYYYan Ye

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Overview

Surveys reveal environmental filtering largely drives community changes in aquatic biodiversity across trophic levels.

Key Points

  • This research aims to understand how cascade dam configurations affect aquatic biodiversity in the Hanjiang River.
  • Conducted surveys of phytoplankton, zooplankton, and benthic macroinvertebrates along a 430 km gradient
  • Utilized variance partitioning, structural equation modeling, and network analysis to assess community changes
  • Analyzed data over eight seasonal campaigns from 2015 to 2017
  • Environmental filtering was the main driver of community restructuring across all trophic levels
  • Less than 0.4% of community variation was attributed to direct trophic interactions
  • Distance from the dam influenced specific environmental conditions impacting different trophic groups

Cite This Study

Shen et al. (2026) studied this question.

synapsesocial.com/papers/69db36a04fe01fead37c4aaahttps://doi.org/10.3390/su18083731
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1THE IMPACT OF CASCADE DEVELOPMENT ON THE COMMUNITY STRUCTURE OF MACROZOOBENTHOS IN THE MID-LOWER REACHES AND CONFLUENCE AREAS OF RIVERS2025
  2. 2Long‐Term Damming Effects Gradually Regulate Particulate C: N: P Imbalance Along the Upper Yangtze River, China2026
  3. 3Biological Community and Ecosystem Responses to Dam Removal in a Mountain River2026
  4. 4Response Characteristics of Key Habitat Factors in the Lower Jinsha River to Cascade Reservoir Impoundment2026
  5. 5Phytoplankton community structure and its response to environmental factors in the cascade hydropower stations of the lower Jinsha River2026