| Title | Cyanobacteria in lakes on Yungui Plateau, China are assembled via niche processes driven by water physicochemical property, lake morphology and watershed land-use |
| Authors | Liao, Jingqiu Zhao, Lei Cao, Xiaofeng Sun, Jinhua Gao, Zhe Wang, Jie Jiang, Dalin Fan, Hao Huang, Yi |
| Affiliation | Peking Univ, Coll Environm Sci & Engn, State Key Joint Lab Environm Simulat & Pollut Co, Beijing 100871, Peoples R China. Yunnan Key Lab Pollut Proc & Management Plateau L, Kunming 650034, Peoples R China. Chinese Res Inst Environm Sci, Beijing 100012, Peoples R China. Cornell Univ, Dept Microbiol, Ithaca, NY 14853 USA. |
| Keywords | HARMFUL ALGAL BLOOMS COMMUNITY COMPOSITION MICROBIAL COMMUNITY ABUNDANCE DISTRIBUTIONS ENVIRONMENTAL-FACTORS GENETIC DIVERSITY SEQUENCE DATA FRESH-WATER NEW-ZEALAND PATTERNS |
| Issue Date | 2016 |
| Publisher | SCIENTIFIC REPORTS |
| Citation | SCIENTIFIC REPORTS.2016,6. |
| Abstract | Plateau lakes are important ecosystems with diverse ecological functions. Cyanobacteria play a key role in plateau lakes as primary producers. However, they are threatening when dense blooms occur. Identifying cyanobacteiral biogeography and the mechanism of assembly processes shaping the distribution of cyanobacteria in plateau lakes is critical for understanding cyanobacterial ecology and applying it to lake management. In the present study, the biogeographic pattern and importance of neutral and niche processes in assembly of cyanobacteria in 21 lakes on Yungui Plateau, China were examined. Results showed that cyanobacteria exhibit unique biogeographic pattern, and most of them have a narrow habitat preference in plateau lakes. They were assembled via niche processes driven by water physicochemical property, lake morphology and watershed land-use, which explained 62.4% of the biological variation. Neutral processes were not at play. Water physicochemical property ( key variables - dissolved oxygen, salinity, trophic status and pH) was the most dominant driver shaping its unique biogeographic pattern. Watershed land-use especially urban land, water body and agricultural land also exhibited a strong impact on cyanobacterial distribution, followed by lake morphology. As most of the cyanobacteiral genus detected in these plateau lakes were potential toxin-producers, this study indicated that in order to protect waters from toxic-bloom in the future, reducing nutrient loading and land-use practices are two practical approaches in plateau lake management. |
| URI | http://hdl.handle.net/20.500.11897/457083 |
| ISSN | 2045-2322 |
| DOI | 10.1038/srep36357 |
| Indexed | SCI(E) PubMed |
| Appears in Collections: | 环境科学与工程学院 |
