Category Archives: Diversity and Biogeography

Publication

Bragg, J., S. Dutkiewicz, O. Jahn, M. Follows, S.W. Chisholm (2010), Modeling selective pressures on picocyanobacterial nitrogen use in the global ocean, PLoS ONE, 5, e9569. doi:10.1371/journal.pone.0009569. LINK

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Ecological balancing act

“Phytoplankton diversity depends on balance between competition and the ocean’s physical dynamics, new research suggests”

By Morgan Bettex, MIT News Office

Read this story at MIT News

Phytoplankton are single-celled organisms that serve as the base of the marine food web and provide half the oxygen we breathe on Earth. They also play a key role in global climate change by removing carbon from the atmosphere and injecting it deep into the oceans.

Scientists study phytoplankton to understand how the tiny plants help transport elements like carbon through the environment. Although they understand much of what phytoplankton do, less is understood about why particular plankton live in particular environments and what maintains the diversity of phytoplankton.

Continue reading Ecological balancing act

Publication

Barton, A.D., S. Dutkiewicz, G. Flierl, J. Bragg, and M.J. Follows (2010), Patterns of Diversity in Marine Phytoplankton, Science, 327, 1509 – 1511, doi: 10.1126/science.1184961

Publication

Dutkiewicz, S., M.J. Follows and J. Bragg (2009), Modeling the coupling of ocean ecology and biogeochemistry, Global Biogeochemical Cycles, 23, GB4017, doi:10.1029/2008GB003405

Publication

Cermeno, P., S. Dutkiewicz, P.G. Falkowski, M. Follows, R.P. Harris, and O. Schofield (2008), The role of oceanic nutricline depth in regulating Earth’s carbon cycle, Proceedings of the National Academy of Sciences, 105, doi:10.1073/pnas.0811302106

Publication

Hood, R.A., E.A. Laws, M.J. Follows and D.A. Siegel (2007), Modeling and prediction of microbial populations in the genomic era, Oceanography, 20, 155-165, doi: 10.5670/oceanog.2007.61

Publication

Follows, M.J., S. Dutkiewicz, S. Grant and S.W. Chisholm (2007), Emergent biogeography of microbial communities in a model ocean, Science, 315, 1843-1846, doi: 10.1126/science.1138544

 

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Ocean Model Captures Diversity of Underwater Forests

“Simulation condenses 10 years’ evolution into five days of computing”

Denise Brehm, Civil and Environmental Engineering

Read this story at MIT News

Scientists at MIT have created an ocean model so realistic that the virtual forests of diverse microscopic plants they “sowed” have grown in population patterns that precisely mimic their real-world counterparts.

This model of the ocean is the first to reflect the vast diversity of the invisible forests living in our oceans–tiny, single-celled green plants that dominate the ocean and produce half the oxygen we breathe on Earth. And it does so in a way that is consistent with the way real-world ecosystems evolve according to the principles of natural selection. Continue reading Ocean Model Captures Diversity of Underwater Forests

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MIT Darwin Project will model ocean microbes

by Matthew T. Gardner for the Earth System Initiative

Read this story at MIT News

A new program to develop computational models of how marine microbes live and evolve in the global ocean has been launched with a $3.7 million gift from the Gordon and Betty Moore Foundation.

The program is important because it will help researchers understand and simulate the relationships between climate change, marine ecosystems and the ocean carbon cycle. Continue reading MIT Darwin Project will model ocean microbes