Articles | Volume 17, issue 18
Biogeosciences, 17, 4545–4557, 2020
Biogeosciences, 17, 4545–4557, 2020

Research article 16 Sep 2020

Research article | 16 Sep 2020

Modern calibration of Poa flabellata (tussac grass) as a new paleoclimate proxy in the South Atlantic

Dulcinea V. Groff et al.

Related authors

A combination of soil water extraction methods quantifies the isotopic mixing of waters held at separate tensions in soil
William H. Bowers, Jason J. Mercer, Mark S. Pleasants, and David G. Williams
Hydrol. Earth Syst. Sci., 24, 4045–4060,,, 2020
Short summary

Related subject area

Paleobiogeoscience: Proxy use, Development & Validation
Mg∕Ca, Sr∕Ca and stable isotopes from the planktonic foraminifera T. sacculifer: testing a multi-proxy approach for inferring paleotemperature and paleosalinity
Delphine Dissard, Gert Jan Reichart, Christophe Menkes, Morgan Mangeas, Stephan Frickenhaus, and Jelle Bijma
Biogeosciences, 18, 423–439,,, 2021
Short summary
Chemical destaining and the delta correction for blue intensity measurements of stained lake subfossil trees
Feng Wang, Dominique Arseneault, Étienne Boucher, Shulong Yu, Steeven Ouellet, Gwenaëlle Chaillou, Ann Delwaide, and Lily Wang
Biogeosciences, 17, 4559–4570,,, 2020
Short summary
Seawater pH reconstruction using boron isotopes in multiple planktonic foraminifera species with different depth habitats and their potential to constrain pH and pCO2 gradients
Maxence Guillermic, Sambuddha Misra, Robert Eagle, Alexandra Villa, Fengming Chang, and Aradhna Tripati
Biogeosciences, 17, 3487–3510,,, 2020
Short summary
Bottom-water deoxygenation at the Peruvian margin during the last deglaciation recorded by benthic foraminifera
Zeynep Erdem, Joachim Schönfeld, Anthony E. Rathburn, Maria-Elena Pérez, Jorge Cardich, and Nicolaas Glock
Biogeosciences, 17, 3165–3182,,, 2020
Short summary
The pH dependency of the boron isotopic composition of diatom opal (Thalassiosira weissflogii)
Hannah K. Donald, Gavin L. Foster, Nico Fröhberg, George E. A. Swann, Alex J. Poulton, C. Mark Moore, and Matthew P. Humphreys
Biogeosciences, 17, 2825–2837,,, 2020
Short summary

Cited articles

Amesbury, M. J., Charman, D. J., Newnham, R. M., Loader, N. J., Goodrich, J. P., Royles, J., Campbell, D. I., Roland, T. P., and Gallego-Sala, A.: Carbon stable isotopes as a palaeoclimate proxy in vascular plant dominated peatlands, Geochim. Cosmochim. Ac., 164, 161–174,, 2015. 
Araguás-Araguás, L., Froehlich, K., and Rozanski, K.: Deuterium and oxygen-18 isotope composition of precipitation and atmospheric moisture, Hydrol. Process., 14, 1341–1355,<1341::AID-HYP983>3.0.CO;2-Z, 2000. 
Barbraud, C., Rolland, V., Jenouvrier, S., Nevoux, M., Delord, K., and Weimerskirch, H.: Effects of climate change and fisheries bycatch on Southern Ocean seabirds: a review, Mar. Ecol. Prog. Ser., 454, 285–307,, 2012. 
Brendel, O., Iannetta, P. P. M., and Stewart, D.: A rapid and simple method to isolate pure alpha-cellulose, Phytochem. Anal., 11, 7–10,<7::AID-PCA488>3.0.CO;2-U, 2000. 
Cernusak, L. A., Tcherkez, G., Keitel, C., Cornwell, W. K., Santiago, L. S., Knohl, A., Barbour, M. M., Williams, D. G., Reich, P. B., Ellsworth, D. S., Dawson, T. E., Griffiths, H. G., Farquhar, G. D., and Wright, I. J.: Why are non-photosynthetic tissues generally 13C enriched compared with leaves in C3 plants?, Review and synthesis of current hypotheses, Funct. Plant Biol., 36, 199,, 2009. 
Short summary
Tussock grasses that grow along coastlines of the Falkland Islands are slow to decay and build up thick peat layers over thousands of years. Grass fragments found in ancient peat can be used to reconstruct past climate because grasses can preserve a record of growing conditions in their leaves. We found that modern living tussock grasses in the Falkland Islands reliably record temperature and humidity in their leaves, and the peat they form can be used to understand past climate change.
Final-revised paper