Since the introductions of the Habitat Directive and the European Water Framework Directive, water authorities are now obliged to monitor changes in conservation value/ecological quality on larger spatial scales (opposed to site scale), as well as to indicate the level of confidence and precision of
The species-specific mobility of six species of lowland stream Trichoptera was studied in flume experiments with different habitats and current flows. The test species were selected according to their occurrence along the environmental gradient from more natural towards highly disturbed sandy, lowla
# Drainage ditches are a common aquatic habitat in the lowland agricultural landscape of north-western Europe. The invertebrate fauna of these waters is poorly known compared with that of the semi-natural wetland fragments found in this region. While most wetlands are designated as nature reserves,
Bij beekherstel gaat het niet alleen om de waterstroom zelf, maar om het hele beekdal. Ook is gebleken dat morfologie en hydrologie van de beek sterk samenhangen. Een goed herstel is alleen mogelijk als het beekwater door de seizoenen heen een vrij constante stroming heeft. Dit is bijvoorbeeld te be
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