Tributary effects on the ecological responses of a regulated river to experimental floods

Assessing the effects of irrigation and hydropower dams on river communities using taxonomic and multiple trait-based approaches

“…Thus, we definitively encourage setting up experiments in partnership with dam operators (e.g. Consoli et al, 2022) to validate key ecological-environmental responses that could orientate future efforts to reduce negative effects of dams on river biodiversity.…”

Importance of Artificial High Flows in Maintaining the Ecological Integrity of a Regulated River

“…Prior to the flood program, mosses and filamentous algae covered the stream bottom (Uehlinger et al, 2003), providing habitat for a high density of Gammarus (Robinson et al, 2003). Moss coverage is still low in the river and likely explains the currently low abundance of gammarids (Consoli, 2023), although they currently dominate the macroinvertebrate assemblage. We expect gammarid densities to increase as mosses become more abundant in the river.…”

“…This result indicates that the habitat template, here meaning the embedded nature of the river bottom covered with mosses, fine sediment and filamentous algae found before the flood program (Uehlinger et al, 2003), has not returned to preflood conditions. Mosses, in particular, likely provided important habitat for gammarids (Stream Bryophyte Group, 1999;Consoli, 2023), allowing densities to reach high levels (10-30,000 ind./m 2 ; Robinson et al, 2003) and being an important food resource for trout. Consoli (2023) also found that secondary production of macroinvertebrates in the Spöl has not reached preflood levels, which was dominated by Gammarus production.…”

Determining Critical Thresholds of Environmental Flow Restoration Based on Planktonic Index of Biotic Integrity (P−IBI): A Case Study in the Typical Tributaries of Poyang Lake

“…This presents the characteristics of low-level disturbance, which is mainly the result of the combined effect of the presence of tributaries in the upstream and downstream reaches and the coordinated regulation of gates and dams. [42][43][44]. ST in the upper reaches and XX, GX, and TP in the middle reaches of the river are dominated by medium-to-high disturbances.…”