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	<title>MIT Darwin Project &#187; Top-Down Control</title>
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	<link>https://darwinproject.mit.edu</link>
	<description>Modeling Marine Microbes</description>
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		<title>Bottom-Heavy Trophic Pyramids Impair Methylmercury Biomagnification in the Marine Plankton Ecosystems</title>
		<link>https://darwinproject.mit.edu/bottom-heavy-trophic-pyramids-impair-methylmercury-biomagnification-in-the-marine-plankton-ecosystems/</link>
		<comments>https://darwinproject.mit.edu/bottom-heavy-trophic-pyramids-impair-methylmercury-biomagnification-in-the-marine-plankton-ecosystems/#comments</comments>
		<pubDate>Wed, 10 Nov 2021 12:18:59 +0000</pubDate>
		<dc:creator><![CDATA[admin]]></dc:creator>
				<category><![CDATA[Research]]></category>
		<category><![CDATA[Top-Down Control]]></category>
		<category><![CDATA[Dutkiewicz]]></category>
		<category><![CDATA[publication]]></category>

		<guid isPermaLink="false">http://darwinproject.mit.edu/?p=2063</guid>
		<description><![CDATA[Peipei Wu, Stephanie Dutkiewicz, Erwan Monier, and Yanxu Zhang (2021), Bottom-Heavy Trophic Pyramids Impair Methylmercury Biomagnification in the Marine Plankton Ecosystems, Environmental Science &#38; Technology, doi: 10.1021/acs.est.1c04083 Description: Methylmercury (CH3Hg+, MMHg) in the phytoplankton and zooplankton, which form the bottom of marine food webs, is a good predictor of MMHg in top predators, including humans. Therefore, evaluating the potential &#8230; <a href="https://darwinproject.mit.edu/bottom-heavy-trophic-pyramids-impair-methylmercury-biomagnification-in-the-marine-plankton-ecosystems/" class="more-link">Continue reading <span class="screen-reader-text">Bottom-Heavy Trophic Pyramids Impair Methylmercury Biomagnification in the Marine Plankton Ecosystems</span> <span class="meta-nav">&#8594;</span></a>]]></description>
		<wfw:commentRss>https://darwinproject.mit.edu/bottom-heavy-trophic-pyramids-impair-methylmercury-biomagnification-in-the-marine-plankton-ecosystems/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Quantifying nitrogen fixation by heterotrophic bacteria in sinking marine particles</title>
		<link>https://darwinproject.mit.edu/quantifying-nitrogen-fixation-by-heterotrophic-bacteria-in-sinking-marine-particles/</link>
		<comments>https://darwinproject.mit.edu/quantifying-nitrogen-fixation-by-heterotrophic-bacteria-in-sinking-marine-particles/#comments</comments>
		<pubDate>Mon, 09 Aug 2021 14:42:36 +0000</pubDate>
		<dc:creator><![CDATA[admin]]></dc:creator>
				<category><![CDATA[Nitrogen Fixation]]></category>
		<category><![CDATA[Top-Down Control]]></category>
		<category><![CDATA[Chakraborty]]></category>
		<category><![CDATA[Follows]]></category>
		<category><![CDATA[Inomura]]></category>

		<guid isPermaLink="false">http://darwinproject.mit.edu/?p=1995</guid>
		<description><![CDATA[Subhendu Chakraborty, Ken H. Andersen, André W. Visser, Keisuke Inomura, Michael J. Follows &#38; Lasse Riemann  (2021), Quantifying nitrogen fixation by heterotrophic bacteria in sinking marine particles, Nature Communications, doi: 10.1038/s41467-021-23875-6 Description: Nitrogen (N2) fixation by heterotrophic bacteria associated with sinking particles contributes to marine N cycling, but a mechanistic understanding of its regulation and significance &#8230; <a href="https://darwinproject.mit.edu/quantifying-nitrogen-fixation-by-heterotrophic-bacteria-in-sinking-marine-particles/" class="more-link">Continue reading <span class="screen-reader-text">Quantifying nitrogen fixation by heterotrophic bacteria in sinking marine particles</span> <span class="meta-nav">&#8594;</span></a>]]></description>
		<wfw:commentRss>https://darwinproject.mit.edu/quantifying-nitrogen-fixation-by-heterotrophic-bacteria-in-sinking-marine-particles/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Open ocean particle flux variability from surface to seafloor</title>
		<link>https://darwinproject.mit.edu/open-ocean-particle-flux-variability-from-surface-to-seafloor/</link>
		<comments>https://darwinproject.mit.edu/open-ocean-particle-flux-variability-from-surface-to-seafloor/#comments</comments>
		<pubDate>Thu, 22 Apr 2021 13:25:59 +0000</pubDate>
		<dc:creator><![CDATA[Helen Hill]]></dc:creator>
				<category><![CDATA[Top-Down Control]]></category>

		<guid isPermaLink="false">http://darwinproject.mit.edu/?p=1956</guid>
		<description><![CDATA[B.B. Cael, Kelsey Bisson, Maureen Conte, Manon T. Duret, Christopher L. Follett, Stephanie A. Henson,  Makio C. Honda,  Morten H. Iversen,  David M. Karl,  Richard S. Lampitt,  Colleen B. Mouw,  Frank Muller‐Karger,  Corinne A. Pebody,  Kenneth L. Smith Jr.,  David Talmy (2021), Open ocean particle flux variability from surface to seafloor, Geophysical Research Letters, doi: 10.1029/2021GL092895 Description: The sinking of &#8230; <a href="https://darwinproject.mit.edu/open-ocean-particle-flux-variability-from-surface-to-seafloor/" class="more-link">Continue reading <span class="screen-reader-text">Open ocean particle flux variability from surface to seafloor</span> <span class="meta-nav">&#8594;</span></a>]]></description>
		<wfw:commentRss>https://darwinproject.mit.edu/open-ocean-particle-flux-variability-from-surface-to-seafloor/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Study reveals uncertainty in how much carbon the ocean absorbs over time</title>
		<link>https://darwinproject.mit.edu/study-reveals-uncertainty-in-how-much-carbon-the-ocean-absorbs-over-time/</link>
		<comments>https://darwinproject.mit.edu/study-reveals-uncertainty-in-how-much-carbon-the-ocean-absorbs-over-time/#comments</comments>
		<pubDate>Mon, 05 Apr 2021 14:34:08 +0000</pubDate>
		<dc:creator><![CDATA[Helen Hill]]></dc:creator>
				<category><![CDATA[Climate Change]]></category>
		<category><![CDATA[Research]]></category>
		<category><![CDATA[Top-Down Control]]></category>
		<category><![CDATA[BB Cael]]></category>
		<category><![CDATA[Lauderdale]]></category>
		<category><![CDATA[MIT News]]></category>

		<guid isPermaLink="false">http://darwinproject.mit.edu/?p=1938</guid>
		<description><![CDATA[Climate projections could be off by five years, Darwin Group researchers find. Read this story at MIT News The ocean’s “biological pump” describes the many marine processes that work to take up carbon dioxide from the atmosphere and transport it deep into the ocean, where it can remain sequestered for centuries. This ocean pump is &#8230; <a href="https://darwinproject.mit.edu/study-reveals-uncertainty-in-how-much-carbon-the-ocean-absorbs-over-time/" class="more-link">Continue reading <span class="screen-reader-text">Study reveals uncertainty in how much carbon the ocean absorbs over time</span> <span class="meta-nav">&#8594;</span></a>]]></description>
		<wfw:commentRss>https://darwinproject.mit.edu/study-reveals-uncertainty-in-how-much-carbon-the-ocean-absorbs-over-time/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Reconciling the size-dependence of marine particle sinking speed</title>
		<link>https://darwinproject.mit.edu/reconciling-the-size-dependence-of-marine-particle-sinking-speed/</link>
		<comments>https://darwinproject.mit.edu/reconciling-the-size-dependence-of-marine-particle-sinking-speed/#comments</comments>
		<pubDate>Tue, 09 Feb 2021 16:34:10 +0000</pubDate>
		<dc:creator><![CDATA[Helen Hill]]></dc:creator>
				<category><![CDATA[Research]]></category>
		<category><![CDATA[Top-Down Control]]></category>
		<category><![CDATA[BB Cael]]></category>
		<category><![CDATA[Britten]]></category>
		<category><![CDATA[publication]]></category>

		<guid isPermaLink="false">http://darwinproject.mit.edu/?p=1924</guid>
		<description><![CDATA[B. B. Cael, Emma L. Cavan, and Gregory L. Britten (2021), Reconciling the size-dependence of marine particle sinking speed, Geophysical Research Letters, doi: 10.1029/2020GL091771 Description: Sinking particles are critical to the ocean’s ‘biological pump’, sequestering carbon from the atmosphere. Particles’ sinking speeds are a primary factor determining fluxes and subsequent ecological and climatic impacts. While size is a key determinant &#8230; <a href="https://darwinproject.mit.edu/reconciling-the-size-dependence-of-marine-particle-sinking-speed/" class="more-link">Continue reading <span class="screen-reader-text">Reconciling the size-dependence of marine particle sinking speed</span> <span class="meta-nav">&#8594;</span></a>]]></description>
		<wfw:commentRss>https://darwinproject.mit.edu/reconciling-the-size-dependence-of-marine-particle-sinking-speed/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Seeding Oceans with Iron may not Impact Climate Change</title>
		<link>https://darwinproject.mit.edu/seeding-oceans-with-iron-may-not-impcaact-climate-change/</link>
		<comments>https://darwinproject.mit.edu/seeding-oceans-with-iron-may-not-impcaact-climate-change/#comments</comments>
		<pubDate>Tue, 18 Feb 2020 13:12:11 +0000</pubDate>
		<dc:creator><![CDATA[admin]]></dc:creator>
				<category><![CDATA[Top-Down Control]]></category>
		<category><![CDATA[Braakman]]></category>
		<category><![CDATA[Dutkiewicz]]></category>
		<category><![CDATA[Follows]]></category>
		<category><![CDATA[Forget]]></category>
		<category><![CDATA[Lauderdale]]></category>
		<category><![CDATA[MIT News]]></category>
		<category><![CDATA[publication]]></category>

		<guid isPermaLink="false">http://darwinproject.mit.edu/?p=1609</guid>
		<description><![CDATA[Darwin Project study led by Jonathan Lauderdale finds Earth’s oceans contain just the right amount of iron; adding more may not improve their ability to absorb carbon dioxide. Read this story at MIT News Historically, the oceans have done much of the planet’s heavy lifting when it comes to sequestering carbon dioxide from the atmosphere. Microscopic &#8230; <a href="https://darwinproject.mit.edu/seeding-oceans-with-iron-may-not-impcaact-climate-change/" class="more-link">Continue reading <span class="screen-reader-text">Seeding Oceans with Iron may not Impact Climate Change</span> <span class="meta-nav">&#8594;</span></a>]]></description>
		<wfw:commentRss>https://darwinproject.mit.edu/seeding-oceans-with-iron-may-not-impcaact-climate-change/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Growth of marine Vibrio in oligotrophic environments is not stimulated by the addition of inorganic iron</title>
		<link>https://darwinproject.mit.edu/growth-of-marine-vibrio-in-oligotrophic-environments-is-not-stimulated-by-the-addition-of-inorganic-iron/</link>
		<comments>https://darwinproject.mit.edu/growth-of-marine-vibrio-in-oligotrophic-environments-is-not-stimulated-by-the-addition-of-inorganic-iron/#comments</comments>
		<pubDate>Tue, 14 May 2019 14:46:16 +0000</pubDate>
		<dc:creator><![CDATA[admin]]></dc:creator>
				<category><![CDATA[Top-Down Control]]></category>
		<category><![CDATA[Follows]]></category>
		<category><![CDATA[Lauderdale]]></category>
		<category><![CDATA[publication]]></category>

		<guid isPermaLink="false">http://darwinproject.mit.edu/?p=1061</guid>
		<description><![CDATA[Ruifeng Zhang, Rachel L. Kelly, Kathryn M. Kauffman, Amber K. Reid, Jonathan M. Lauderdale, Michael J. Follows, Seth G. John (2019), Growth of marine Vibrio in oligotrophic environments is not stimulated by the addition of inorganic iron, Earth and Planetary Science Letters, doi: 10.1016/j.epsl.2019.04.002 Abstract Phytoplankton growth in many high-latitude and equatorial regions of the world ocean &#8230; <a href="https://darwinproject.mit.edu/growth-of-marine-vibrio-in-oligotrophic-environments-is-not-stimulated-by-the-addition-of-inorganic-iron/" class="more-link">Continue reading <span class="screen-reader-text">Growth of marine Vibrio in oligotrophic environments is not stimulated by the addition of inorganic iron</span> <span class="meta-nav">&#8594;</span></a>]]></description>
		<wfw:commentRss>https://darwinproject.mit.edu/growth-of-marine-vibrio-in-oligotrophic-environments-is-not-stimulated-by-the-addition-of-inorganic-iron/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Phytoplankton &amp; Chips</title>
		<link>https://darwinproject.mit.edu/phytoplankton-chips/</link>
		<comments>https://darwinproject.mit.edu/phytoplankton-chips/#comments</comments>
		<pubDate>Fri, 04 Aug 2017 17:12:03 +0000</pubDate>
		<dc:creator><![CDATA[admin]]></dc:creator>
				<category><![CDATA[Climate Change]]></category>
		<category><![CDATA[Diversity and Biogeography]]></category>
		<category><![CDATA[Macromolecular Modeling]]></category>
		<category><![CDATA[Mixotrophy]]></category>
		<category><![CDATA[Nitrogen Fixation]]></category>
		<category><![CDATA[Research]]></category>
		<category><![CDATA[Top-Down Control]]></category>
		<category><![CDATA[Trait Based Approaches]]></category>
		<category><![CDATA[Chisholm]]></category>
		<category><![CDATA[Follows]]></category>
		<category><![CDATA[Hill]]></category>
		<category><![CDATA[Simons Foundation]]></category>

		<guid isPermaLink="false">http://darwinproject.mit.edu/?p=808</guid>
		<description><![CDATA[Helen Hill &#124; Darwin Project Microbes mediate the global marine cycles of elements, modulating atmospheric CO2 and helping to maintain the oxygen we all breath yet there is much about them scientists still don’t understand. Now, an award from the Simons Foundation will give researchers from the Darwin Project access to bigger, better computing resources to model &#8230; <a href="https://darwinproject.mit.edu/phytoplankton-chips/" class="more-link">Continue reading <span class="screen-reader-text">Phytoplankton &#038; Chips</span> <span class="meta-nav">&#8594;</span></a>]]></description>
		<wfw:commentRss>https://darwinproject.mit.edu/phytoplankton-chips/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Darwin goes to Ocean Sciences 2014</title>
		<link>https://darwinproject.mit.edu/darwin-goes-to-ocean-sciences-2014/</link>
		<comments>https://darwinproject.mit.edu/darwin-goes-to-ocean-sciences-2014/#comments</comments>
		<pubDate>Sun, 23 Feb 2014 09:00:19 +0000</pubDate>
		<dc:creator><![CDATA[admin]]></dc:creator>
				<category><![CDATA[Climate Change]]></category>
		<category><![CDATA[Diversity and Biogeography]]></category>
		<category><![CDATA[Macromolecular Modeling]]></category>
		<category><![CDATA[Mixotrophy]]></category>
		<category><![CDATA[Nitrogen Fixation]]></category>
		<category><![CDATA[Top-Down Control]]></category>
		<category><![CDATA[Trait Based Approaches]]></category>
		<category><![CDATA[Clayton]]></category>
		<category><![CDATA[Dutkiewicz]]></category>
		<category><![CDATA[Follows]]></category>
		<category><![CDATA[Hickman]]></category>
		<category><![CDATA[Hill]]></category>
		<category><![CDATA[Inomura]]></category>
		<category><![CDATA[Jahn]]></category>
		<category><![CDATA[meeting]]></category>
		<category><![CDATA[Talmy]]></category>
		<category><![CDATA[Taniguchi]]></category>
		<category><![CDATA[Vallina]]></category>
		<category><![CDATA[Ward]]></category>
		<category><![CDATA[Zakem]]></category>

		<guid isPermaLink="false">http://darwinproject.scripts.mit.edu/darwin/?p=119</guid>
		<description><![CDATA[Leaving the cold of a New England February behind, the Darwin team will be in full attendance at this year&#8217;s Ocean Sciences conference taking place February 23-28 in Honolulu, Hawaii. Here are all the Darwin Project abstracts: Clayton, S.; Lin, Y. C.; Follows, M. J.; Worden, A. Z.; FINE SCALE ECOLOGY OF PICOEUKARYOTES ACROSS THE &#8230; <a href="https://darwinproject.mit.edu/darwin-goes-to-ocean-sciences-2014/" class="more-link">Continue reading <span class="screen-reader-text">Darwin goes to Ocean Sciences 2014</span> <span class="meta-nav">&#8594;</span></a>]]></description>
		<wfw:commentRss>https://darwinproject.mit.edu/darwin-goes-to-ocean-sciences-2014/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Size Structure: exploring nutrient versus grazing control</title>
		<link>https://darwinproject.mit.edu/size-structure-exploring-nutrient-versus-grazing-control-2/</link>
		<comments>https://darwinproject.mit.edu/size-structure-exploring-nutrient-versus-grazing-control-2/#comments</comments>
		<pubDate>Tue, 28 Jan 2014 16:33:40 +0000</pubDate>
		<dc:creator><![CDATA[admin]]></dc:creator>
				<category><![CDATA[Top-Down Control]]></category>
		<category><![CDATA[Trait Based Approaches]]></category>
		<category><![CDATA[Dutkiewicz]]></category>
		<category><![CDATA[Follows]]></category>
		<category><![CDATA[Ward]]></category>

		<guid isPermaLink="false">http://darwinproject.scripts.mit.edu/darwin/?p=92</guid>
		<description><![CDATA[Idealized equilibrium models have attributed the observed size structure of marine communities to the interactions between nutrient and grazing control. In a new paper in the Journal of Plankton Research Ben Ward and co-authors Stephanie Dutkiewicz and Mick Follows examine this theory in a more realistic context using a size-structured global ocean food-web model, together &#8230; <a href="https://darwinproject.mit.edu/size-structure-exploring-nutrient-versus-grazing-control-2/" class="more-link">Continue reading <span class="screen-reader-text">Size Structure: exploring nutrient versus grazing control</span> <span class="meta-nav">&#8594;</span></a>]]></description>
		<wfw:commentRss>https://darwinproject.mit.edu/size-structure-exploring-nutrient-versus-grazing-control-2/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
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