Article
Agriculture, Dairy & Animal Science
Kai Zhao, Duoqi Zhou, Mengrui Ge, Yixun Zhang, Wenhui Li, Yu Han, Guangyu He, Shuiqin Shi
Summary: This study analyzed the composition and structural characteristics of the intestinal microbiota of A. fabalis in Caizi Lake and Shengjin Lake during overwintering. Lactobacillus was the main genus, with Lactobacillus aviaries being the most abundant species. The microbiota composition and function differed between the two habitats. Understanding these changes is important for studying the adaptation mechanism of migratory birds to the overwintering environment.
Article
Geosciences, Multidisciplinary
Hehe Chen, John B. Shaw, Glenn R. Sharman, Jill A. Marshall
Summary: Anthropogenic activities, such as dredging and sand and gravel mining, have had significant impacts on sediment transport in large rivers. A study on the lower Arkansas River in the USA showed that while the modern sediment deficit is smaller compared to developing countries, dredging and mining still significantly alter the sediment balance in this river. This highlights the need for extraction management worldwide, particularly in developing economies, to improve the sustainability of ecosystem in large rivers.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Geography, Physical
Derek K. Gibson, Broxton W. Bird, Harvie J. Pollard, Cameron A. Nealy, Robert C. Barr, Jaime Escobar
Summary: The study investigated flood frequencies on the lower Ohio River during the late Holocene, finding that the Medieval Climate Anomaly and Little Ice Age impacted flood frequencies in the region, while land clearing in the early 19th century decoupled flood frequencies from this relationship.
QUATERNARY SCIENCE REVIEWS
(2022)
Article
Ecology
Maira Patricia Gayol, Natalia Soledad Morandeira, Eliana Belen Gonzalez, Patricia Kandus
Summary: This study investigated the relationship between macrophyte community structure and environmental features in the Lower Parana River floodplain, revealing that water ammonium and nitrate concentrations, turbidity, and flood frequency directly affected macrophyte assemblages. Connectivity between shallow lakes and watercourses influenced their physical and chemical features, while the dynamics of shallow lakes were associated with flood frequency, indirectly impacting macrophyte composition.
FRESHWATER BIOLOGY
(2022)
Article
Environmental Sciences
Chang Xie, Bingguo Dai, Jiajun Wu, Yunzhao Liu, Zhongguan Jiang
Summary: The study found that fish communities in the floodplain lakes along the Yangtze River have recovered well under the ban on pen-culture and fishing, with significant restoration of wild and migratory species. Although there were significant variations in community composition, there were no significant changes in alpha and beta diversity indices. However, there were significant changes in alpha and beta diversity indices between high-water and low-water seasons in the recovery stage, indicating the recovery of natural seasonal community dynamics. The results highlight the importance of conserving lacustrine connectivity and seasonal flooding for the recovery of fishery resources in the floodplain lakes.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Environmental Sciences
Zhe Xiao, Hua Li, Xiao-Chuang Li, Ren-Hui Li, Shou-Liang Huo, Gong-Liang Yu
Summary: Disentangling the contributions of deterministic and stochastic processes is crucial for understanding the geographic pattern and assembly mechanism of phytoplankton community. In this study, we investigated phytoplankton community in 81 lakes in the middle and lower reaches of Yangtze River. We found that both deterministic and stochastic processes governed the assembly and biogeography of phytoplankton community. Spatial factors had a stronger influence on the community compared to environmental variables. These findings suggest that stochastic processes play a dominant role in shaping the phytoplankton community in these lakes.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Agriculture, Dairy & Animal Science
Jingjing Gu, Lizhi Zhou
Summary: This study investigated the intestinal microbes of Hooded Cranes wintering at three different lakes in China to understand the effects of habitat size and protection status on their intestinal microbes. The results showed that habitat size and protection status had significant impacts on the diversity and abundance of intestinal microbes in the cranes, with smaller lakes and poorly protected habitats having higher microbial diversity and potential pathogens.
Article
Marine & Freshwater Biology
Ewa Anna Dembowska
Summary: This study investigated the phytoplankton communities of six floodplain lakes in the Lower Vistula region from 2007 to 2015. The results showed that lakes connected to the river had higher phytoplankton biomass and species diversity compared to isolated lakes. Extreme hydrological events such as floods or droughts caused fluctuations in water quality.
Article
Marine & Freshwater Biology
Kelsey A. Wilbanks, Damon L. Mullis
Summary: This study investigated the importance of connectivity and flooding on macroinvertebrate distributions in oxbow lakes. The results showed differences in oxbow lakes before, during and after flooding, with the greatest impact observed in lakes with low connectivity. However, post-flood conditions quickly reverted back to pre-flood conditions.
Article
Geosciences, Multidisciplinary
Petra Rychtecka, Pavel Samec, Jana Rosikova
Summary: This study classified the soil conditions of a floodplain temperate forest based on the geo-biocoenological approach, analyzing the chemical and hydrophysical properties. The results showed that the soil series were clearly divided based on the fluvial landforms. The study also revealed significant differences in soil conditions between the bar and terrace soil series, indicating variations in site conditions for floodplain vegetation development.
Article
Environmental Sciences
Martha L. Carlson Mazur, Bradley Smith, Broxton Bird, Sara McMillan, Mark Pyron, Cassie Hauswald
Summary: The study found that land cover, topography, and hydrologic connectivity affect water quality and fish communities in floodplain lakes. While higher topographic relief and reduced river hydrologic connectivity contribute to greater diversity and abundance of fish species in oxbow lakes, a more detailed understanding of the influencing factors is still needed.
RIVER RESEARCH AND APPLICATIONS
(2022)
Article
Ecology
Laura Lopera-Congote, Jorge Salgado, Maria Isabel Velez, Andres Link, Catalina Gonzalez-Arango
Summary: This study explores the long-term evolution of two floodplain lakes in Colombia, analyzing their responses to climate events and connectivity to the Magdalena River. The research shows that highly connected lakes respond more acutely to climate events like ENSO, while isolated lakes are more sensitive to local land-use changes. Hydrological connectivity to the river is identified as a key factor controlling the long-term responses of the lakes to human pressures.
ECOLOGY AND EVOLUTION
(2021)
Article
Environmental Sciences
Taise Miranda Lopes, Carolina Mendes Muniz, Marcelo Henrique Schmitz, Rosa Maria Dias, Amanda Cantarute Rodrigues, Matheus Gimenez Buzo, Edivando Vitor do Couto, Angelo Antonio Agostinho
Summary: In freshwater ecosystems, flood pulses, connectivity between environments, and vegetation mosaic are the main variables affecting environmental structure. Local limnological conditions are more important for structuring river fish assemblages. However, these limnological characteristics can have combined impacts on the environment. This study evaluates the main drivers of fish trophic guilds in lakes and determines the importance of limnological conditions, spatial distance, and riparian vegetation. Limnological variables and riparian vegetation influenced the distribution of trophic guilds, especially during low water periods.
Article
Soil Science
Adrian Heger, Joscha N. Becker, Lizeth K. Vasconez Navas, Annette Eschenbach
Summary: In hardwood floodplain forests, significant relationships exist between soil organic carbon (SOC) stocks and hydromorphic features, soil texture, C/N ratio, pH, and forest age. The complexity of interactions among heterogeneous microrelief, anthropogenic effects, and hydrologic situation make it challenging to predict SOC stocks accurately without field validation. Profiling the controlling factors for SOC storage in these environments suggests that relief and sedimentation proxies are the strongest factors influencing SOC stocks, while vegetation plays a subordinate role.
Article
Biodiversity Conservation
Rui Dong, Yuyu Wang, Cai Lu, Guangchun Lei, Li Wen
Summary: Anthropogenic disturbances to natural hydrological connectivity pose a threat to freshwater ecosystem integrity. Studies have shown that hydrological connectivity affects spatial variations in flora and fauna communities, but understanding temporal changes and processes is also crucial. In a study of macroinvertebrates in a floodplain wetland, it was found that water level fluctuations influenced beta diversity and LHC affected species richness and abundance across different hydrological phases.
ECOLOGICAL INDICATORS
(2021)