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October 8, 2018
Long-term data show that climate change affects ecosystem functioning and the body size distributions of animal species, but more information is needed to understand the mechanisms underlying these changes. There’s a need for experimental studies that take account of linkages between the aquatic and terrestrial environment and that simulate changes in the intensity and frequency […]
October 8, 2018
In freshwater systems, drying events are ramp disturbances that reduce habitat availability and connectivity, while floods are sudden pulse disturbances. The relationship between disturbance and biodiversity is complex, and although some studies indicate that perennial rivers, which often flood, are more biodiverse than intermittent rivers, which periodically stop flowing and dry out, other work suggests […]
October 8, 2018
Because many pollutants adsorb onto the surfaces of fine sediment particles, sediment transport plays a central role in distributing contaminants throughout river systems. However, current models of sediment and pollutant transfer are complex and complicated by the fact that key processes such as adsorption, erosion and deposition aren’t easily observed. Belgian scientists have responded to […]
July 5, 2018
There are concerns that human impacts on freshwater systems – particularly temperature increases linked to climate change and nutrient enrichment caused by run-off and pollution – are encouraging the spread of blue-green algae (cyanobacteria) capable of generating toxic blooms that threaten human and animal health. One such case is the recent spread of Cylindrospermopsis raciborskii, […]
October 8, 2018
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