This oxygen spike would have lasted between ... dynamic behavior of biogeochemical cycles under late Archean conditions.” The study suggests that as continents grew larger during the late ...

This daily feast-and-famine cycle in oxygen availability created an intense physiological challenge for early animals, forcing them to develop adaptations to handle fluctuations in nutrients. For ...

Inland waters, which include streams, rivers, lakes, and reservoirs, are crucial to the health of our planet and different ...

The biogeochemical cycles proceed through biological ... and well known are the element cycles of carbon (C), nitrogen (N), oxygen (O), phosphorus (P), and sulfur (S), as well as the water ...

Using this so-called "biogeochemical model," we have shown ... This daily feast-and-famine cycle in oxygen availability created an intense physiological challenge for early animals, forcing ...

The onset, maintenance, and breakdown of hypoxia are associated with dynamic microbial biogeochemical cycles. However, the distribution of microbial taxa and metabolisms across Shelf oxygen gradients ...

Microalgae, belonging to the diverse group of photosynthetic microorganisms, play pivotal roles in global ecosystems and biogeochemical cycles. They contribute significantly to carbon fixation and ...

The organic nitrogen sinks into the deep ocean, where microbes "eat" the organic nitrogen and use oxygen to respire and turn the nitrogen into nitrate. Ocean currents cycle the nitrate back to the ...