Combined ecological risks of nitrogen and phosphorus in European freshwaters

Eutrophication is a key water quality issue triggered by increasing nitrogen (N) and phosphorus (P) levels and potentially posing risks to freshwater biota. We predicted the probability that an invertebrate species within a community assemblage becomes absent due to nutrient stress as the ecological risk (ER) for European lakes and streams subjected to N and P pollution from 1985 to 2011. The ER was calculated as a function of species-specific tolerances to NO3 - and total P concentrations and water quality monitoring data. Lake and stream ER averaged 50% in the last monitored year (i.e. 2011) and we observed a decrease by 22% and 38% in lake and stream ER (respectively) of river basins since 1985. Additionally, the ER from N stress surpassed that of P in both freshwater systems. The ER can be applied to identify river basins most subjected to eutrophication risks and the main drivers of impacts

Dataset on respiratory responses to hypoxia

This dataset compiles published data on respiration rates for 4 different species, measured at different levels of oxygen. Literature sources are given in full in the accompanying paper

R-scripts for analysing respiratory responses to hypoxia

R-script contains code to analyse and plot the data on respiratory responses to hypoxia and is programmed in

Dataset on Heat tolerance

This dataset gives heat tolerance values measured for 8 different species, measured at hypoxia (5kPa), normoxia (20 kPa) and hyperoxia (60kPa). The 8 species comprise 4 exotic and 4 native species and they further differ in their preferred habitat (standing waters, running waters or indifferent)