Different facets of diversity reveal different patterns of fish assemblages in tropical rivers: The Buyuan River (China)
4 affiliations
- 1Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences, Naypyidaw, 05282, Myanmar; State Key Laboratory of Genetic Resources and Evolution & Yunnan Key Laboratory of Biodiversity and Ecological Conservation of Gaoligong Mountain, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, 650201, China; University of Chinese Academy of Sciences, Beijing, 100049, China
- 2Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, 611130, China
- 3Key Laboratory of East China Sea Fishery Resources Exploitation, Ministry of Agriculture and Rural Affairs, East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai, 200090, China
- 4Yunnan Academy of Ecological and Environmental Sciences, Kunming, 650334, China; Chenghai Lake Eco-environment Observation and Research Station of Yunnan Province, Yongsheng, 674202, China
Abstract
Exploring the patterns of biodiversity across multiple facets of river ecosystems and their driving factors is crucial for biodiversity conservation. As the most important tributary of the lower Lancang River, the Buyuan River remains largely unexplored in terms of systematic research on its fish diversity patterns and driving factors. Here, we explored the fish taxonomic, phylogenetic, and functional diversity at both alpha and beta levels and their driving factors in the Buyuan River basin. Results showed that fish alpha and beta diversity across different facets in the Buyuan River basin exhibit distinct patterns, and the relationships among various facets of diversity had a degree of independence. Univariate Spearman correlation analysis with FDR correction showed that environmental variables and spatial variables jointly shaped the alpha diversity patterns of fish across three facets in the Buyuan River. Redundancy analysis and variation partitioning analysis indicated that the combined effects of spatial and environmental factors shaped the taxonomic and functional beta diversity patterns of fish in the Buyuan River. Specifically, environmental factors explained more of the variation in taxonomic beta diversity (adjusted R² = 0.364) and its turnover components (adjusted R² = 0.338) than did spatial factors (all adjusted R² values were close to 0), whereas environmental factors (adjusted R 2 = 0) explained less of the variation in the nestedness components of taxonomic beta diversity than did spatial factors (adjusted R 2 = 0.042). Similarly, functional beta diversity exhibited the same pattern. However, phylogenetic beta diversity (adjusted R 2 = 0) and its turnover (adjusted R 2 = 0.056) and nestedness (adjusted R 2 = 0) components were insensitive to both environmental and spatial factors. This study emphasizes the necessity of employing multifaceted diversity indicators in biodiversity assessments, as different facets of diversity provide complementary information.
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BibTeX
@article{li2026different,
title = {{Different facets of diversity reveal different patterns of fish assemblages in tropical rivers: The Buyuan River (China)}},
author = {Miao Li and Jiang Bai and Chenyang Yao and Xuanyu Wang and Xiaopeng Cheng and Guiquan Fu and Deping Kong and Xiaoyong Chen},
journal = {Global Ecology and Conservation},
year = {2026},
month = oct,
doi = {10.1016/j.gecco.2026.e04477},
url = {https://doi.org/10.1016/j.gecco.2026.e04477},
note = {CC BY},
}
RIS
TY - JOUR
TI - Different facets of diversity reveal different patterns of fish assemblages in tropical rivers: The Buyuan River (China)
AU - Miao Li
AU - Jiang Bai
AU - Chenyang Yao
AU - Xuanyu Wang
AU - Xiaopeng Cheng
AU - Guiquan Fu
AU - Deping Kong
AU - Xiaoyong Chen
PY - 2026
DA - 2026/10/30
JO - Global Ecology and Conservation
DO - 10.1016/j.gecco.2026.e04477
UR - https://doi.org/10.1016/j.gecco.2026.e04477
AB - Exploring the patterns of biodiversity across multiple facets of river ecosystems and their driving factors is crucial for biodiversity conservation. As the most important tributary of the lower Lancang River, the Buyuan River remains largely unexplored in terms of systematic research on its fish diversity patterns and driving factors. Here, we explored the fish taxonomic, phylogenetic, and functional diversity at both alpha and beta levels and their driving factors in the Buyuan River basin. Results showed that fish alpha and beta diversity across different facets in the Buyuan River basin exhibit distinct patterns, and the relationships among various facets of diversity had a degree of independence. Univariate Spearman correlation analysis with FDR correction showed that environmental variables and spatial variables jointly shaped the alpha diversity patterns of fish across three facets in the Buyuan River. Redundancy analysis and variation partitioning analysis indicated that the combined effects of spatial and environmental factors shaped the taxonomic and functional beta diversity patterns of fish in the Buyuan River. Specifically, environmental factors explained more of the variation in taxonomic beta diversity (adjusted R² = 0.364) and its turnover components (adjusted R² = 0.338) than did spatial factors (all adjusted R² values were close to 0), whereas environmental factors (adjusted R 2 = 0) explained less of the variation in the nestedness components of taxonomic beta diversity than did spatial factors (adjusted R 2 = 0.042). Similarly, functional beta diversity exhibited the same pattern. However, phylogenetic beta diversity (adjusted R 2 = 0) and its turnover (adjusted R 2 = 0.056) and nestedness (adjusted R 2 = 0) components were insensitive to both environmental and spatial factors. This study emphasizes the necessity of employing multifaceted diversity indicators in biodiversity assessments, as different facets of diversity provide complementary information.
SN - 2351-9894
ER -