Combined effects of climate change and dam construction on riverine ecosystems

摘要: Abstract River morphology and riparian vegetation continuously adapt to changing discharge conditions, which makes it a challenge distinguish long-term development driven by natural variation from the impacts of flow alteration due climate change dams. The aim this study was investigate how such alterations affect bio-geomorphological processes habitat suitability several fluvial plant animal species. This is done with numerical model representing dynamic interactions between morphodynamic coupled models We compared control run regime altered for two scenarios different dam operating regimes, change, combinations dams change. Results show that stabilization leads incision, acute reduced seedling recruitment decline vegetation. Climate generates gradual response, where high extremes counteract an otherwise pioneer vegetation, while drying reduces causes shifts towards lower elevations on floodplain. Modelled availability facilitated species declines most when synchronicity critical life history events requirements disrupted opposite effects Dynamic bio-geo-morphological somewhat characteristic timescales create non-linear adaptive behaviour morphology, patterns habitat. implies only include feedbacks can forecast multiple pressures, whereas addition single-pressure overly simplistic.