Mountain fish biodiversity is increasingly threatened by global environmental change and anthropogenic pressures, yet the mechanisms linking abiotic factors to fish biogeography through trophic associations remain unclear. In this study, we explored these ecological linkages in the upper Hanjiang River basin (China) using environmental DNA (eDNA) metabarcoding, remote sensing, water quality analysis and hydrological monitoring...

Quantifying soil organic carbon ( SOC ) decomposition under warming is critical to predict carbon–climate feedbacks. According to the substrate regulating principle, SOC decomposition would decrease as labile SOC declines under field warming, but observations of SOC decomposition under warming do not always support this prediction. This discrepancy could result from varying changes in SOC components and soil microbial communit...