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Influence of environmental factors on molecular isotopic signals
| Effect of evapo-transpiration on hydrogen isotope compositions of leaf water and plant waxes of terrestrial plants |
By conducting greenhouse experiments and sampling along aridity gradients in natural environments, the influence of relative humidity on leaf water and plant wax lipid hydrogen isotope compositions is investigated.
People involved:
- Ansgar Kahmen (ETH Zurich)
- Dirk Sachse, Bernd Hoffmann (University of Potsdam)
- Enno Schefuss (MARUM)
- Jason West (Texas A&M University)
- Lucas Cernusak (ANU Canberra)
| Effect of salinity and growth rate on hydrogen isotope fractionation of Emiliania huxleyi |
By conducting growth experiments with algal cultures of Emiliania huxleyi, we investigate the influence of vaiable salinity and growth rate on hydrogen isotope fractionation between culture waters and alkenones.
People involved:
- Kate French (MIT/WHOI)
- Albert Benthien, Jelle Bijma (AWI Bremerhaven)
- Enno Schefuss (MARUM)
| Effect of growth rate on stable carbon isotope fractionation of Emiliania huxleyi |
We investigated the effects of variable groth rates on stable carbon isotope compositions of alkenones of the algae Emiliania huxleyi in a series of culture experiments.
People involved:
- Sarah Febiri, Kai Schulz, Ulf Riebesell (IFM-Geomar)
- Albert Benthien, Jens Hefter (AWI Bremerhaven)
- Enno Schefuss (MARUM)
