Alster et al 2020 proposed that ΔC‡ P and Topt are the temperature response traits most relevant to test hypotheses related to the thermal adaptation of microbial communities We hypothesized that Top

In summary, the authors initially hypothesized that Topt and ΔC‡ P would increase with warming, indicating a thermal adaptation of microbial communities. However, their results did not support this hypothesis. The most influential variable on the parameters derived from MMRT was C concentration, which was positively correlated with soil C:N ratios and N concentrations. This suggests that the positive influence of C concentration on respiration rate and the magnitude of change in respiration rates can be explained by substrate availability and microbial biomass. Overall, the findings suggest that substrate availability plays a crucial role in the response of microbial respiration to temperature