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November 16, 2025BiologyOpen Access

Population Structure and Ecological Niches of Benthic Macroinvertebrates in the Upper Yarlung Zangbo River

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This research aims to analyze the community structure and ecological niches of benthic macroinvertebrates in the upper Yarlung Zangbo River.
Data collected in April and September 2023
Community composition analysis of benthic macroinvertebrates
α-diversity assessment using Shannon–Wiener index and Margalef richness
β-diversity analysis to understand species turnover and overlap
Diptera dominated the macroinvertebrate community, notably including Chironomus anthracinus and Gammarus sp.
Significant seasonal differences were found in Shannon–Wiener diversity and Margalef richness (p < 0.05)
Niche overlap suggests interspecific competition between species like Chironomus anthracinus and Valvata sp. in April

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Analysis demonstrates seasonal differences in ecological niches of benthic macroinvertebrates, indicating conservation needs.

Zhang et al. (2025) studied this question.

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