Articles | Volume 36, issue 2
https://doi.org/10.1144/jmpaleo2016-007
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.1144/jmpaleo2016-007
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Effect of gross morphology on modern planktonic foraminiferal test strength under compression
Janet E. Burke
Department of Geology and Geophysics, Yale University, 210 Whitney Avenue, New Haven, CT 06511, USA
Pincelli M. Hull
Department of Geology and Geophysics, Yale University, 210 Whitney Avenue, New Haven, CT 06511, USA
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Janet E. Burke, Willem Renema, Michael J. Henehan, Leanne E. Elder, Catherine V. Davis, Amy E. Maas, Gavin L. Foster, Ralf Schiebel, and Pincelli M. Hull
Biogeosciences, 15, 6607–6619, https://doi.org/10.5194/bg-15-6607-2018, https://doi.org/10.5194/bg-15-6607-2018, 2018
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Metabolic rates are sensitive to environmental conditions and can skew geochemical measurements. However, there is no way to track these rates through time. Here we investigate the controls of test porosity in planktonic foraminifera (organisms commonly used in paleoclimate studies) as a potential proxy for metabolic rate. We found that the porosity varies with body size and temperature, two key controls on metabolic rate, and that it can respond to rapid changes in ambient temperature.
Michael J. Henehan, David Evans, Madison Shankle, Janet E. Burke, Gavin L. Foster, Eleni Anagnostou, Thomas B. Chalk, Joseph A. Stewart, Claudia H. S. Alt, Joseph Durrant, and Pincelli M. Hull
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It is still unclear whether foraminifera (calcifying plankton that play an important role in cycling carbon) will have difficulty in making their shells in more acidic oceans, with different studies often reporting apparently conflicting results. We used live lab cultures, mathematical models, and fossil measurements to test this question, and found low pH does reduce calcification. However, we find this response is likely size-dependent, which may have obscured this response in other studies.
Janet E. Burke, Willem Renema, Michael J. Henehan, Leanne E. Elder, Catherine V. Davis, Amy E. Maas, Gavin L. Foster, Ralf Schiebel, and Pincelli M. Hull
Biogeosciences, 15, 6607–6619, https://doi.org/10.5194/bg-15-6607-2018, https://doi.org/10.5194/bg-15-6607-2018, 2018
Short summary
Short summary
Metabolic rates are sensitive to environmental conditions and can skew geochemical measurements. However, there is no way to track these rates through time. Here we investigate the controls of test porosity in planktonic foraminifera (organisms commonly used in paleoclimate studies) as a potential proxy for metabolic rate. We found that the porosity varies with body size and temperature, two key controls on metabolic rate, and that it can respond to rapid changes in ambient temperature.
Michael J. Henehan, David Evans, Madison Shankle, Janet E. Burke, Gavin L. Foster, Eleni Anagnostou, Thomas B. Chalk, Joseph A. Stewart, Claudia H. S. Alt, Joseph Durrant, and Pincelli M. Hull
Biogeosciences, 14, 3287–3308, https://doi.org/10.5194/bg-14-3287-2017, https://doi.org/10.5194/bg-14-3287-2017, 2017
Short summary
Short summary
It is still unclear whether foraminifera (calcifying plankton that play an important role in cycling carbon) will have difficulty in making their shells in more acidic oceans, with different studies often reporting apparently conflicting results. We used live lab cultures, mathematical models, and fossil measurements to test this question, and found low pH does reduce calcification. However, we find this response is likely size-dependent, which may have obscured this response in other studies.