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	<title>MIT Darwin Project &#187; Omta</title>
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	<link>https://darwinproject.mit.edu</link>
	<description>Modeling Marine Microbes</description>
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		<title>Stability of the marine nitrogen cycle over the past 165 million years</title>
		<link>https://darwinproject.mit.edu/stability-of-the-marine-nitrogen-cycle-over-the-past-165-million-years/</link>
		<comments>https://darwinproject.mit.edu/stability-of-the-marine-nitrogen-cycle-over-the-past-165-million-years/#comments</comments>
		<pubDate>Thu, 18 Dec 2025 17:28:14 +0000</pubDate>
		<dc:creator><![CDATA[admin]]></dc:creator>
				<category><![CDATA[Climate Change]]></category>
		<category><![CDATA[Omta]]></category>

		<guid isPermaLink="false">https://darwinproject.mit.edu/?p=2527</guid>
		<description><![CDATA[Godfrey, L.V., Omta, A.W., Tziperman, E. et al. (2025), Stability of the marine nitrogen cycle over the past 165 million years, Nat Commun, doi:  10.1038/s41467-025-63604-x Description: This study reconstructs the marine nitrogen cycle over 165 million years using isotopic records and Earth system modeling. The authors find remarkable long-term stability despite major climate and tectonic changes, suggesting strong &#8230; <a href="https://darwinproject.mit.edu/stability-of-the-marine-nitrogen-cycle-over-the-past-165-million-years/" class="more-link">Continue reading <span class="screen-reader-text">Stability of the marine nitrogen cycle over the past 165 million years</span> <span class="meta-nav">&#8594;</span></a>]]></description>
		<wfw:commentRss>https://darwinproject.mit.edu/stability-of-the-marine-nitrogen-cycle-over-the-past-165-million-years/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>New Insights into Ocean Carbon Storage During the Last Glacial Maximum</title>
		<link>https://darwinproject.mit.edu/new-insights-into-ocean-carbon-storage-during-the-last-glacial-maximum/</link>
		<comments>https://darwinproject.mit.edu/new-insights-into-ocean-carbon-storage-during-the-last-glacial-maximum/#comments</comments>
		<pubDate>Mon, 28 Oct 2024 01:35:49 +0000</pubDate>
		<dc:creator><![CDATA[admin]]></dc:creator>
				<category><![CDATA[Uncategorized]]></category>
		<category><![CDATA[CBIOMES]]></category>
		<category><![CDATA[Follett]]></category>
		<category><![CDATA[Lauderdale]]></category>
		<category><![CDATA[Omta]]></category>

		<guid isPermaLink="false">https://darwinproject.mit.edu/?p=2437</guid>
		<description><![CDATA[A recent study led by Anne Willem Omta highlights the pivotal role of biological processes in regulating carbon storage in the ocean during the Last Glacial Maximum.  Read this story at cbiomes.org]]></description>
		<wfw:commentRss>https://darwinproject.mit.edu/new-insights-into-ocean-carbon-storage-during-the-last-glacial-maximum/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Carbon isotope budget indicates biological disequilibrium dominated ocean carbon storage at the Last Glacial Maximum</title>
		<link>https://darwinproject.mit.edu/carbon-isotope-budget-indicates-biological-disequilibrium-dominated-ocean-carbon-storage-at-the-last-glacial-maximum/</link>
		<comments>https://darwinproject.mit.edu/carbon-isotope-budget-indicates-biological-disequilibrium-dominated-ocean-carbon-storage-at-the-last-glacial-maximum/#comments</comments>
		<pubDate>Mon, 16 Sep 2024 18:48:42 +0000</pubDate>
		<dc:creator><![CDATA[admin]]></dc:creator>
				<category><![CDATA[Uncategorized]]></category>
		<category><![CDATA[Follett]]></category>
		<category><![CDATA[Lauderdale]]></category>
		<category><![CDATA[Omta]]></category>

		<guid isPermaLink="false">https://darwinproject.mit.edu/?p=2432</guid>
		<description><![CDATA[Omta, A.W., Follett, C.L., Lauderdale, J.M. et al. (2024), Carbon isotope budget indicates biological disequilibrium dominated ocean carbon storage at the Last Glacial Maximum, Nat. Commun., doi: 10.1038/s41467-024-52360-z Description: Understanding the causes of the ~90 ppmv atmospheric CO2 swings between glacial and interglacial climates is an important open challenge in paleoclimate research. Although the regularity of &#8230; <a href="https://darwinproject.mit.edu/carbon-isotope-budget-indicates-biological-disequilibrium-dominated-ocean-carbon-storage-at-the-last-glacial-maximum/" class="more-link">Continue reading <span class="screen-reader-text">Carbon isotope budget indicates biological disequilibrium dominated ocean carbon storage at the Last Glacial Maximum</span> <span class="meta-nav">&#8594;</span></a>]]></description>
		<wfw:commentRss>https://darwinproject.mit.edu/carbon-isotope-budget-indicates-biological-disequilibrium-dominated-ocean-carbon-storage-at-the-last-glacial-maximum/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
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		<title>A model of time-dependent macromolecular and elemental composition of phytoplankton</title>
		<link>https://darwinproject.mit.edu/a-model-of-time-dependent-macromolecular-and-elemental-composition-of-phytoplankton/</link>
		<comments>https://darwinproject.mit.edu/a-model-of-time-dependent-macromolecular-and-elemental-composition-of-phytoplankton/#comments</comments>
		<pubDate>Tue, 23 Jul 2024 20:22:52 +0000</pubDate>
		<dc:creator><![CDATA[admin]]></dc:creator>
				<category><![CDATA[Uncategorized]]></category>
		<category><![CDATA[Follows]]></category>
		<category><![CDATA[Omta]]></category>

		<guid isPermaLink="false">https://darwinproject.mit.edu/?p=2401</guid>
		<description><![CDATA[Omta, Anne Willem, Justin D. Liefer, Zoe V. Finkel, Andrew J. Irwin, Daniel Sher, Michael J. Follows (2024), A model of time-dependent macromolecular and elemental composition of phytoplankton, Journal of Theoretical Biology, doi: 10.1016/j.jtbi.2024.111883 Description: Phytoplankton Chl:C:N:P ratios are important from both an ecological and a biogeochemical perspective. We show that these elemental ratios can be &#8230; <a href="https://darwinproject.mit.edu/a-model-of-time-dependent-macromolecular-and-elemental-composition-of-phytoplankton/" class="more-link">Continue reading <span class="screen-reader-text">A model of time-dependent macromolecular and elemental composition of phytoplankton</span> <span class="meta-nav">&#8594;</span></a>]]></description>
		<wfw:commentRss>https://darwinproject.mit.edu/a-model-of-time-dependent-macromolecular-and-elemental-composition-of-phytoplankton/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Trophic model closure influences ecosystem response to enrichment</title>
		<link>https://darwinproject.mit.edu/trophic-model-closure-influences-ecosystem-response-to-enrichment/</link>
		<comments>https://darwinproject.mit.edu/trophic-model-closure-influences-ecosystem-response-to-enrichment/#comments</comments>
		<pubDate>Wed, 18 Jan 2023 21:28:33 +0000</pubDate>
		<dc:creator><![CDATA[admin]]></dc:creator>
				<category><![CDATA[Diversity and Biogeography]]></category>
		<category><![CDATA[Follows]]></category>
		<category><![CDATA[Omta]]></category>
		<category><![CDATA[publication]]></category>

		<guid isPermaLink="false">https://darwinproject.mit.edu/?p=2264</guid>
		<description><![CDATA[Anne Willem Omta, Elizabeth A. Heiny, Harshana Rajakaruna, David Talmy, Michael J. Follows (2023), Trophic model closure influences ecosystem response to enrichment, Ecological Modelling, doi: 10.1016/j.ecolmodel.2022.110183 Description: There exists considerable uncertainty about the most appropriate functional form to describe mortality at the highest trophic level (the closure problem). Although linear and quadratic formulations predict strongly different &#8230; <a href="https://darwinproject.mit.edu/trophic-model-closure-influences-ecosystem-response-to-enrichment/" class="more-link">Continue reading <span class="screen-reader-text">Trophic model closure influences ecosystem response to enrichment</span> <span class="meta-nav">&#8594;</span></a>]]></description>
		<wfw:commentRss>https://darwinproject.mit.edu/trophic-model-closure-influences-ecosystem-response-to-enrichment/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>The Mid-Pleistocene Transition: a delayed response to an increasing positive feedback?</title>
		<link>https://darwinproject.mit.edu/the-mid-pleistocene-transition-a-delayed-response-to-an-increasing-positive-feedback/</link>
		<comments>https://darwinproject.mit.edu/the-mid-pleistocene-transition-a-delayed-response-to-an-increasing-positive-feedback/#comments</comments>
		<pubDate>Tue, 08 Nov 2022 18:53:24 +0000</pubDate>
		<dc:creator><![CDATA[admin]]></dc:creator>
				<category><![CDATA[Climate Change]]></category>
		<category><![CDATA[Follows]]></category>
		<category><![CDATA[Omta]]></category>

		<guid isPermaLink="false">https://darwinproject.mit.edu/?p=2231</guid>
		<description><![CDATA[Shackleton, J.D., Follows, M.J., Thomas, P.J. and A.W. Omta (2022),  The Mid-Pleistocene Transition: a delayed response to an increasing positive feedback? Climate Dynamics,  doi: 10.1007/s00382-022-06544-2 Description: Glacial–interglacial cycles constitute large natural variations in Earth’s climate. The Mid-Pleistocene Transition (MPT) marks a shift of the dominant periodicity of these climate cycles from ∼40 to ∼100 kyr. Recently, it has been suggested that &#8230; <a href="https://darwinproject.mit.edu/the-mid-pleistocene-transition-a-delayed-response-to-an-increasing-positive-feedback/" class="more-link">Continue reading <span class="screen-reader-text">The Mid-Pleistocene Transition: a delayed response to an increasing positive feedback?</span> <span class="meta-nav">&#8594;</span></a>]]></description>
		<wfw:commentRss>https://darwinproject.mit.edu/the-mid-pleistocene-transition-a-delayed-response-to-an-increasing-positive-feedback/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Quantifying nutrient throughput and DOM production by algae in continuous culture</title>
		<link>https://darwinproject.mit.edu/quantifying-nutrient-throughput-and-dom-production-by-algae-in-continuous-culture/</link>
		<comments>https://darwinproject.mit.edu/quantifying-nutrient-throughput-and-dom-production-by-algae-in-continuous-culture/#comments</comments>
		<pubDate>Tue, 14 Jul 2020 14:05:15 +0000</pubDate>
		<dc:creator><![CDATA[admin]]></dc:creator>
				<category><![CDATA[Macromolecular Modeling]]></category>
		<category><![CDATA[Follows]]></category>
		<category><![CDATA[Inomura]]></category>
		<category><![CDATA[Omta]]></category>
		<category><![CDATA[publication]]></category>
		<category><![CDATA[Talmy]]></category>

		<guid isPermaLink="false">http://darwinproject.mit.edu/?p=1762</guid>
		<description><![CDATA[A.W. Omta, D. Talmy, K. Inomura, A.J. Irwin, Z.V. Finkel, D. Sher, and M.J. Follows (2020), Quantifying nutrient throughput and DOM production by algae in continuous culture, Journal of Theoretical Biology, doi: 10.1016/j.jtbi.2020.110214 Summary: Freshwater and marine algae can balance nutrient demand and availability by regulating uptake, accumulation and exudation. To obtain insight into these processes under nitrogen (N) and phosphorus &#8230; <a href="https://darwinproject.mit.edu/quantifying-nutrient-throughput-and-dom-production-by-algae-in-continuous-culture/" class="more-link">Continue reading <span class="screen-reader-text">Quantifying nutrient throughput and DOM production by algae in continuous culture</span> <span class="meta-nav">&#8594;</span></a>]]></description>
		<wfw:commentRss>https://darwinproject.mit.edu/quantifying-nutrient-throughput-and-dom-production-by-algae-in-continuous-culture/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>A Mechanistic Model of Macromolecular Allocation, Elemental Stoichiometry, and Growth Rate in Phytoplankton</title>
		<link>https://darwinproject.mit.edu/a-mechanistic-model-of-macromolecular-allocation-elemental-stoichiometry-and-growth-rate-in-phytoplankton/</link>
		<comments>https://darwinproject.mit.edu/a-mechanistic-model-of-macromolecular-allocation-elemental-stoichiometry-and-growth-rate-in-phytoplankton/#comments</comments>
		<pubDate>Mon, 29 Jun 2020 15:12:22 +0000</pubDate>
		<dc:creator><![CDATA[admin]]></dc:creator>
				<category><![CDATA[Macromolecular Modeling]]></category>
		<category><![CDATA[Follows]]></category>
		<category><![CDATA[Inomura]]></category>
		<category><![CDATA[Omta]]></category>
		<category><![CDATA[publication]]></category>
		<category><![CDATA[Talmy]]></category>

		<guid isPermaLink="false">http://darwinproject.mit.edu/?p=1755</guid>
		<description><![CDATA[Inomura, K. A-W. Omta, D. Talmy, J. Bragg, C. Deutsch, and M.J. Follows (2020), A Mechanistic Model of Macromolecular Allocation, Elemental Stoichiometry, and Growth Rate in Phytoplankton, Frontiers in Microbiology, doi: 10.3389/fmicb.2020.00086 Summary: We present a model of the growth rate and elemental stoichiometry of phytoplankton as a function of resource allocation between and within broad macromolecular pools under a variety &#8230; <a href="https://darwinproject.mit.edu/a-mechanistic-model-of-macromolecular-allocation-elemental-stoichiometry-and-growth-rate-in-phytoplankton/" class="more-link">Continue reading <span class="screen-reader-text">A Mechanistic Model of Macromolecular Allocation, Elemental Stoichiometry, and Growth Rate in Phytoplankton</span> <span class="meta-nav">&#8594;</span></a>]]></description>
		<wfw:commentRss>https://darwinproject.mit.edu/a-mechanistic-model-of-macromolecular-allocation-elemental-stoichiometry-and-growth-rate-in-phytoplankton/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>When Phytoplankton Go Hungry</title>
		<link>https://darwinproject.mit.edu/when-phytoplankton-go-hungry/</link>
		<comments>https://darwinproject.mit.edu/when-phytoplankton-go-hungry/#comments</comments>
		<pubDate>Mon, 22 Apr 2019 22:10:56 +0000</pubDate>
		<dc:creator><![CDATA[admin]]></dc:creator>
				<category><![CDATA[Macromolecular Modeling]]></category>
		<category><![CDATA[CBIOMES]]></category>
		<category><![CDATA[Follows]]></category>
		<category><![CDATA[Omta]]></category>
		<category><![CDATA[publication]]></category>
		<category><![CDATA[Simons Foundation]]></category>

		<guid isPermaLink="false">http://darwinproject.mit.edu/?p=1037</guid>
		<description><![CDATA[by Helen Hill for MIT CBIOMES The Redfield ratio, the atomic ratio of carbon, nitrogen, and phosphorus (C:N:P) in phytoplankton and deep ocean waters, has often been treated as a constant 106:16:1. A new paper involving several CBIOMES co-authors, among them two from the MIT Darwin Group, presents compelling evidence for what causes this ratio &#8230; <a href="https://darwinproject.mit.edu/when-phytoplankton-go-hungry/" class="more-link">Continue reading <span class="screen-reader-text">When Phytoplankton Go Hungry</span> <span class="meta-nav">&#8594;</span></a>]]></description>
		<wfw:commentRss>https://darwinproject.mit.edu/when-phytoplankton-go-hungry/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>An Analytical Framework for the Steady State Impact of Carbonate Compensation on Atmospheric CO2</title>
		<link>https://darwinproject.mit.edu/an-analytical-framework-for-the-steady-state-impact-of-carbonate-compensation-on-atmospheric-co2/</link>
		<comments>https://darwinproject.mit.edu/an-analytical-framework-for-the-steady-state-impact-of-carbonate-compensation-on-atmospheric-co2/#comments</comments>
		<pubDate>Mon, 14 May 2018 18:30:58 +0000</pubDate>
		<dc:creator><![CDATA[admin]]></dc:creator>
				<category><![CDATA[Climate Change]]></category>
		<category><![CDATA[Omta]]></category>
		<category><![CDATA[publication]]></category>

		<guid isPermaLink="false">http://darwinproject.mit.edu/?p=896</guid>
		<description><![CDATA[Omta, A. W., Ferrari, R., &#38; McGee, D. (2018), An analytical framework for the steady state impact of carbonate compensation on atmospheric CO2, Global Biogeochemical Cycles, 32, 720–735, doi: 10.1002/2017GB005809 Abstract The deep-ocean carbonate ion concentration impacts the fraction of the marine calcium carbonate production that is buried in sediments. This gives rise to the carbonate compensation &#8230; <a href="https://darwinproject.mit.edu/an-analytical-framework-for-the-steady-state-impact-of-carbonate-compensation-on-atmospheric-co2/" class="more-link">Continue reading <span class="screen-reader-text">An Analytical Framework for the Steady State Impact of Carbonate Compensation on Atmospheric CO2</span> <span class="meta-nav">&#8594;</span></a>]]></description>
		<wfw:commentRss>https://darwinproject.mit.edu/an-analytical-framework-for-the-steady-state-impact-of-carbonate-compensation-on-atmospheric-co2/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
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