Human impact on the global nitrogen cycle. Article by Dante LaPenta Photos by Evan Krape and courtesy of Tara Trammell November 07, 2018. ... Despite its critical role on Earth, our understanding of ...

In the nitrogen cycle, phytoplankton and other marine plants turn nitrate (NO3) into organic nitrogen during photosynthesis. The organic nitrogen sinks into the deep ocean, where microbes "eat ...

A new study shows that nitrogen-feeding organisms exist all over the deep ocean, and not just in large oxygen-depleted 'dead zones,' changing the way we think about the delicate nitrogen cycle.

Bess Ward is a biogeochemist, which is a big-picture way of saying that she does a little bit of everything — biology, geology and chemistry, especially as they relate to the world’s oceans. She ...

Vitousek, P. M. et al. Human alteration of the global nitrogen cycle: sources and consequences. Ecological Applications 7, 737–750 (1997).

Single-cell images of environmental marine ammonia oxidizing archaea. Panel (a) identifies the ammonia oxidizing archaea (green) and surrounding cells (blue), ... Even though the Thaumarchaeota are ...

Excess nitrogen in tallgrass prairies, like the one pictures here, gives an advantage to plants that flower early in the growing season, which then crowd out plants that flower later in the year, ...