Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: June 17, 2024

Urbanization-induced environmental changes are becoming a major threat to river systems. However, little is known about how urbanization affects aquatic microbial communities despite their critical role in maintaining ecological processes and nutrient cycling. Here, we investigated assembly of habitat generalists specialists different stages subtropical rivers. The results highlight that nitrogen compounds can influence the composition community. Proteobacteria Bacteroidetes, as well Cyanobacteria were identified dominant phyla Both total diversity species richness significantly higher than specialists, while beta was low-level rivers (LUS) high-level (HUS). For generalist, heterogeneous selection most important process for HUS winter, but dispersal limitation, drift other nondominated mainly establishment LUS whether summer or winter. Similarly, stochastic main HUS, In winter LUS, more complex network found stronger complexity robustness co-occurrence compared HUS. Overall, these suggest play key shaping urbanization-induced homogenization communities. insights gained from this study may be helpful understanding mechanisms.

Language: Английский