Geodiversity as a surrogate to inform freshwater fish diversity conservation and management DOI

Jie Wang,

Juan Tao, Jani Heino

et al.

Journal of Applied Ecology, Journal Year: 2025, Volume and Issue: unknown

Published: April 17, 2025

Abstract Geodiversity offers novel insights into biodiversity patterns and their underlying mechanisms, thereby contributing to the development of conservation strategies amid widespread environmental changes human disturbances. However, relationship between geodiversity remains largely unexplored, particularly in freshwater ecosystems. Here, we investigated extent which accounts for fish diversity across dimensions (taxonomic, functional phylogenetic) levels (alpha beta) Lancang‐Mekong River. We first compiled three datasets (i.e. occurrence records, traits phylogenetic relations) seven geofeature group discharge, waterbody, topography, terrestrial cover, landform, soil rock) catchment. Multidimensional were then calculated at alpha beta levels, respectively. Next, assessed influence on multidimensional corresponding using generalized linear mixed models (GLMMs) structural equation modelings (SEMs). showed contrasting with showing positive upriver‐downriver gradients, but negative gradients along river continuum. The spatial congruence was weak geofeatures levels. substantially accounted variance both conditional R 2 GLMMs ranging from 0.892 0.996. increase primarily driven by growing variability discharge waterbody types, while mainly influenced rising dissimilarity types. SEMs revealed that indirect effects generally weak. Synthesis applications . Our findings emphasize profound large rivers, revealing its central role shaping through enhancing heterogeneity resource availability. To sustain diversity, it is crucial maintain types preserve linkages among components. Integrating programmes provides a robust framework ensuring ecosystem resilience functionality guiding management restoration globally, face rapid changes.

Language: Английский

Fishery and agriculture amidst human activities and climate change in the Mekong River: A review of gaps in data and effective approaches towards sustainable development DOI
Khosro Morovati,

Fuqiang Tian,

Yadu Pokhrel

et al.

Journal of Hydrology, Journal Year: 2024, Volume and Issue: unknown, P. 132043 - 132043

Published: Sept. 1, 2024

Language: Английский

Citations

5
Widespread and strong impacts of river fragmentation by human barriers on fishes in the Mekong River Basin DOI Creative Commons
Jingrui Sun, Damiano Baldan, Martyn C. Lucas

et al.

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: March 5, 2025

Abstract The Mekong River, a global freshwater biodiversity hotspot, has suffered from intensive barrier construction, resulting in major challenges safeguarding its fauna. Here, we provide comprehensive evaluation of the impacts river barriers on distribution 1,032 fish species Basin. Our analysis revealed that 93% suffer habitat fragmentation, and with larger range requirements experienced higher fragmentation impacts. Sub-basins along main channel Lower had high values richness but relatively Across all migration types, potamodromous worst status (Fragmentation Index, 42.56 [95% CI, 36.95–46.05]), followed by catadromous fish. Among IUCN conservation categories, Critically Endangered highest index (33.34 [12.53–46.40]). small dams sluice gates contribute more to than large dams.

Language: Английский

Citations

0
Characterizing dam fragmentation impacts on freshwater fish within life cycle impact assessment DOI Creative Commons

Sif de Visser,

Valerio Barbarossa, Tamara Keijzer

et al.

Environmental Impact Assessment Review, Journal Year: 2025, Volume and Issue: 114, P. 107929 - 107929

Published: March 27, 2025

Language: Английский

Citations

0
A global synthesis reveals the role of strategic hydropower planning in mitigating adverse impacts of reservoir flooding DOI

Enhang Liang,

Hongjie Tang, Yiming Liu

et al.

Renewable and Sustainable Energy Reviews, Journal Year: 2025, Volume and Issue: 217, P. 115723 - 115723

Published: April 14, 2025

Language: Английский

Citations

0
Geodiversity as a surrogate to inform freshwater fish diversity conservation and management DOI

Jie Wang,

Juan Tao, Jani Heino

et al.

Journal of Applied Ecology, Journal Year: 2025, Volume and Issue: unknown

Published: April 17, 2025

Abstract Geodiversity offers novel insights into biodiversity patterns and their underlying mechanisms, thereby contributing to the development of conservation strategies amid widespread environmental changes human disturbances. However, relationship between geodiversity remains largely unexplored, particularly in freshwater ecosystems. Here, we investigated extent which accounts for fish diversity across dimensions (taxonomic, functional phylogenetic) levels (alpha beta) Lancang‐Mekong River. We first compiled three datasets (i.e. occurrence records, traits phylogenetic relations) seven geofeature group discharge, waterbody, topography, terrestrial cover, landform, soil rock) catchment. Multidimensional were then calculated at alpha beta levels, respectively. Next, assessed influence on multidimensional corresponding using generalized linear mixed models (GLMMs) structural equation modelings (SEMs). showed contrasting with showing positive upriver‐downriver gradients, but negative gradients along river continuum. The spatial congruence was weak geofeatures levels. substantially accounted variance both conditional R 2 GLMMs ranging from 0.892 0.996. increase primarily driven by growing variability discharge waterbody types, while mainly influenced rising dissimilarity types. SEMs revealed that indirect effects generally weak. Synthesis applications . Our findings emphasize profound large rivers, revealing its central role shaping through enhancing heterogeneity resource availability. To sustain diversity, it is crucial maintain types preserve linkages among components. Integrating programmes provides a robust framework ensuring ecosystem resilience functionality guiding management restoration globally, face rapid changes.

Language: Английский

Citations

0