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Dispersal and colonization are important for the assembly and biodiversity of microbial communities. While emigration as the initial step of dispersal has become increasingly understood in model bacterial biofilms, the drivers of dispersal and colonization in complex biofilms remain elusive. We grew complex biofilms in microcosms from natural surface water(More)
Effluents from wastewater treatment plants (WWTPs) containing micro-organisms and residual nitrogen can stimulate nitrification in freshwater streams. We hypothesized that different ammonia-oxidizing (AOB) and nitrite-oxidizing (NOB) bacteria present in WWTP effluents differ in their potential to colonize biofilms in the receiving streams. In an(More)
The microbial monitoring of drinking water production systems is essential to assure water quality and minimize possible risks. However, the comparative impact of microbes from the surrounding aquifer and of those established within drinking water wells on water parameters remains poorly understood. High pressure jetting is a routine method to impede well(More)
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