(Credit: Pexels) Amazing diversity hides beneath the surface of the ocean where tiny microbes work busily; transforming carbon dioxide from the atmosphere into oxygen, converting sunlight into energy, and breaking down nitrogen gas to serve as food. University of Maryland Center for Environmental Science researcher Victoria Coles and her team have developed [...]
Gradual environmental changes due to eutrophication and global warming can cause a rapid depletion of oxygen levels in lakes and coastal waters. A new study led by professors Jef Huisman and Gerard Muyzer of the University of Amsterdam (UvA) shows that microorganisms play a key role in these disastrous regime shifts. The researchers' findings were published in the journal Nature Communications on 6 October. Regime shifts are abrupt, large and persistent changes in the structure and function of ecosystems triggered by gradual changes in environmental conditions. Regime shifts have been described for a large variety of ecosystems.
Warming oceans caused by climate change may be leading to an increase in cholera and other infections caused by Vibrio bacteria, according to more than 50 years of data on climate and populations of ocean microbes.
A new study of nearly 22,000 fossils finds that ancient plankton communities began changing in important ways as much as 400,000 years before massive die-offs ensued during the first of Earth's five great extinctions.
(Click to enlarge) Arachnoidiscus sendaicus, a microorganism collected from the Falkland Platform in the South Atlantic Ocean (Credit: California Academy of Sciences Geology) The billions of marine microorganisms present in every liter of seawater represent a structured ecological community that regulates how Earth functions in practically every way, from energy consumption to respiration. As [...]