Lakes worldwide are affected by multiple stressors, including climate change. This includes massive loading of both nutrients and humic substances to lakes during extreme weather events, which also may disrupt thermal stratification. Since multi‐stressor effects vary widely in space and time, their combined ecological impacts remain difficult to predict. Therefore, we combined two consecutive large enclosure experiments with a...

Seventy five percent of the world's food crops benefit from insect pollination. Hence, there has been increased interest in how global change drivers impact this critical ecosystem service. Because standardized data on crop pollination are rarely available, we are limited in our capacity to understand the variation in pollination benefits to crop yield, as well as to anticipate changes in this service, develop predictions, and...

The benthic O 2 uptake and the O 2 microdistribution in a coastal sediment of Aarhus Bay, Denmark, were investigated during a seasonal study. Measurements were performed in situ by a profiling lander and a flux chamber lander, as well as on recovered sediment cores. The O 2 penetration depth, the diffusive O 2 uptake, and the volumespecific O 2 consumption rate strongly depended on the seasonal changes in bottom water O 2 conc...

The signal of Clark‐type oxygen sensors is controlled not only by the oxygen concentration but also by sensor dimensions, temperature, and salinity. We have developed a mathematical model that predicts the O 2 microsensor signal as a function of these parameters. The only model variable, membrane permeability, can be determined by a one‐point calibration; hence, the model can be used for calibrating the signal measured under a...