Pagecontent:
Dr. Florian Rommerskirchen
Name: | Dr. Florian Rommerskirchen | |
|---|---|---|
Department: | General Geology - Marine Geology - AG Gerold Wefer | |
Job: | Dipl.-Chem. - Post-Doc (DFG) | |
Room: | ||
Any time I'm in my office or lab, | ||
Phone: | +49 421 218 - 65527 | |
Fax: | +49 421 218 - 65505 | |
E-Mail: |
|
EGU 2010, Vienna, Session CL1.2, Thu, 06 May
RESEARCH INTERESTS
- Organic Geochemistry (sedimentary lipid biomarker distributions as environmental indicators; geochemical proxies of terrestrial climate changes; chemotaxonomy of long-chain higher land plant wax homologues of C3 and C4 plants)
- Isotope Geochemistry (bulk and molecular d13C and molecular dD)
- Paleo-climatology (distribution of continental vegetation zones due to changes in hydrology, temperature and pCO2 in the geological past)
- Environmental Geochemistry - climate research (volatile organohalogens in the marine and terrestrial near ocean environment)
SERVICE
Laboratory
Organic-geochemical laboratory for advanced organic geochemical techniques, particulary liquid chromatographic seperation of complex mixtures of sedimentary lipids and plant waxes with accelerated solvent extraction (ASE 200), GC-FID (HP 5890 Series II with autosampler) for lipid quantification and GC-irm-MS (Trace GC Ultra with Triplus autosampler, combustion interface, Finnigan MAT 252 mass-spectrometer) for compound-specific 13C analysis.
Reviews
Organic Geochemistry, Quaternary Research
PROJECTS
African Climate Changes During C4 Plant Evolution and Expansion
[2008-present] In this project I want to establish detailed records of vegetation changes on the African continent by investigating terrigenous plant lipid biomarkers and their molecular carbon and hydrogen isotopic signatures. These analyses will be conducted in combination with pollen associations on samples from marine sediment cores in the eastern equatorial and southern Atlantic. The pollen analyses will be made by Lydie Dupont. We focus on the middle to Late Miocene, covering the large-scale expansion of C4 grasslands. Both evolution and expansion of C4 plants have yet mainly been linked to decreasing atmospheric CO2 levels according to the ‘CO2-treshold’ model. While for the Eocene/Oligocene interval falling CO2 levels were reconstructed, a mismatch exists between estimates of Miocene pCO2 levels and the detected expansion of C4 grasslands. This contrast, in turn, points to the significance of other environmental factors for large-scale vegetation changes, such as amount and seasonality of precipitation. A detailed comparison of lipid biomarker with pollen records will allow the distinction between C4 vegetations of different composition.
Collaboration with: Lydie Dupont, Enno Schefuß
This project is a part of the DFG - Research Unit: Understanding Cenozoic Climate Cooling (UCCC): The Role of the Hydrological Cycle, the Carbon Cycle, and Vegetation Changes.
Poster of this project:
IMOG 2009, Bremen, Germany, September 2009: Rommerskirchen et al., Southeast Atlantic upwelling intensity changes influencing late Miocene African C4 plant expansion?
EGU2010, Vienna, Austria, Mai 2010: Rommerskirchen et al., Late Miocene biomarker and pollen records in Southeast Atlantic Ocean sediments indicate environmental changes
C4 and C3 Plant Signatures in the Marine Sedimentary Record
[2001-present] Combined molecular and isotopic geochemical techniques were used in this study to characterise deep-sea sediments from South-East Atlantic Ocean in terms of the composition of the ternary mixture of marine and terrestrial organic matter. Especially, the chemotaxonomic significance of distribution and stable carbon isotopic composition of long-chain alkanes and alkanols are in the focus of my research interests. Together with colleagues, I tested these parameters by analyses the waxes of over two-hundreds C4 grasses and C3 plants, which have grown in Southern and Central African continent - in deserts, savannas and rain forests. The results, together with those of pollen analysis and data of sedimentary lipids, are used to elucidate vegetation changes on the African continent in the geological past as a function of climate change and geographic latitude.
Collaboration with: Jürgen Rullkötter, Geoffrey Eglinton, Lydie Dupont, Yoshito Chikaraishi, Angela Vogts, Anna Plader, Heiko Moossen, Robert Mayes, Ernst-Detlef Schulze, and many more...
Figure:
One of the very productive "Transect Crew" meetings at the Hanse-Wissenschaftskolleg in Delmenhorst, Germany (29th April 2004). From left to right: Geoffrey Eglinton, Lydie Dupont, Jürgen Rullkötter and Florian Rommerskirchen.
Figures from left to right:
(1) Synoptic view of the N-S transect and terrestrial organic matter transport from the African continent [Figure 7 adopted from Rommerskirchen et al., 2003]
(2) N-S transects of pairs of interglacial (averaged MIS 1 and 5e; solid line) and glacial (averaged MIS 2 and 6a; broken line) plots [Figure 4 adopted from Rommerskirchen et al., 2006a]
(3) Averaged histogram representations of C26 to C36 n-alkanes and C21 to C33 n-alkanols in plant leaf waxes [Figure 5 adopted from Rommerskirchen et al., 2006a]
(4) Triangular diagram representations of percentages of three odd-carbon-numbered n-alkanes each for (a) interglacial (average of MIS 1 and MIS 5e) and (b) glacial (average of MIS 2 and MIS 6a) sediments [Figure 6 adopted from Rommerskirchen et al., 2006a]
Different vegetations in Namibia (Africa) range from desert-type (Welwitchia mirabilis) to savanna- (C4 grasses and C3 bushes/trees) and savanna/dry forest-type
(Photos: (c) 2005 by Paul de Wilt / Lydie Dupont)
Publications of this project:
Vogts, A., Moossen, H., Rommerskirchen, F., Rullkötter, J., 2009. Distribution patterns and stable carbon isotopic composition of alkanes and alkan-1-ols from plant waxes of African rain forest and savanna C3 species, Organic Geochemistry 40, 1037-1054 , doi: 10.1016/j.orggeochem.2009.07.011.
Rommerskirchen, F., Plader, A., Eglinton, G., Chikaraishi, Y., Rullkötter, J., 2006b. Chemotaxonomic significance of distribution and stable carbon isotopic composition of long-chain alkanes and alkan-1-ols in C4 grass waxes, Organic Geochemistry 37, 1303-1332. doi:10.1016/j.orggeochem.2005.12.013
Rommerskirchen, F., Eglinton, G., Dupont, L., Rullkötter, J., 2006a. Glacial/interglacial changes in Southern Africa: Compound-specific d13C land plant biomarker and pollen records from Southeast Atlantic continental margin sediments, Geochemistry, Geophysics, Geosystems 7, Q08010, doi10.1029/2005GC001223. 16 August 2006
Rommerskirchen, F., Eglinton, G., Dupont, L., Günter, U., Wenzel, C., Rullkötter, J., 2003. A North to South transect of Holocene southeast Atlantic continental margin sediments: Relationship between aerosol transport and compound-specific d13C land plant biomarker and pollen records, Geochemistry, Geophysics, Geosystems 4(12), 1101, doi: 10.1029/2003GC000541. 10. December 2003
For more details, please see the publication-section.
Poster of this project:
Vogts-Rommerskirchen_2007-IMOG_Torquay_molecular-isotopic-composition.pdf
Vogts-Rommerskirchen_2007_Goldschmidt_Cologne-Molecular_d13C_values_of_leaf_wax_components.pdf
Florian-Rommerskirchen-IODP-Bremen-2004.pdf
F-Rommerskirchen-IODP-2004.pdf
Poster-land-plant-biomarkers.pdf
SOPRAN: Surface Ocean Processes in the Anthropocene - Theme 3.2
Measurements during high tide, Banc d'Arguin, Mauritania
[2007-2008] The objective is to quantify spatial and temporal production rates of volatile halogenated organic compounds (VOHC), including the methyl halides, within West African coastal and near-shore regions (Mauritania, Namibia). Especially terrestrial sources of VOHCs (methyl chloride, methyl bromide, methyl jodide), their land-to-ocean and land-to-atmosphere fluxes as well as isotope fractionation comprise the scope of Theme 3.2. [SOPRAN]
Collaboration with: Walter Michaelis, Sidi Mohamed Ould Lehlou, Aly Ould Yahya Dartige, Stephan Solloch, Sascha Herrlich
Figure:
Field campaign in Mauritania (September 2007). The pic shows a sampling site at Nouadhibou during low tide (~100% marine grass Spartima Maritima), from left to right: Sascha Herrlich, Stephan Solloch, Florian Rommerskirchen.
Field campaign report: SOPRAN 3.2 starts work in Mauritania.
Poster of this project:
Rommerskirchen-VHOC-Mauretanien-Titel.pdf
Report in Hamburger Abendblatt (in german):
Salzpflanzen als Klimakiller
Einige Pflanzen produzieren mehr Treibhausgase als bislang angenommen.
Von Angela Grosse
ECHOES OF LIFE - What Fossil Molecules Reveal About Earth History
[2006-2007] I worked together with the authors of ECHOES OF LIFE, Susan M. Gaines, Geoffrey Eglinton and Jürgen Rullkötter, on the scientific illustrations for the book. Thereby, I have had very friendly contact to dozens of members of the scientific community around the world. They provided scientific data and graphics, and, of course, made this project to a worthwhile collection: a book about the past 70 years of Organic Geochemistry, the Earths history of life and of the discoverers and researchers behind our knowledge.
Gaines, S.M., Eglinton, G., Rullkötter, J., 2008. Echoes of Life - What Fossil Molecules Reveal About Earth History, Oxford University Press, ISBN13: 978-0-19-517619-3
CURRICULUM VITAE (CV)
| 2008-present | Post-Doc | Marum - Center for Marine Environmental Science, University of Bremen (Germany) |
| 2007-2008 | Post-Doc | Institute of Biogeochemistry and Marine Chemistry (IfBM), University of Hamburg (Germany) |
| 2006-2007 | Textbook-project "Echoes of Life: What Fossil Molecules Reveal About Earth History". Authors: Susan Gaines, Geoffrey Eglinton and Jürgen Rullkötter | |
| 2006 | Ph.D. | Institute of Chemistry and Biology of the Marine Environment (ICBM), University of Oldenburg (Germany) |
| 2001 | Diploma degree in chemistry | University of Oldenburg (Germany) |
INVITED TALKS
| Rommerskirchen, F., 2007. Organic geochemical signatures indicating climate-dependent vegetation changes - C3/C4 plant competition, alkyl lipids and d13C values. NEBROC/ECOLMAS course "Terrigenous climate signals in deep marine sediments" (March 14th), RCOM, Bremen, Germany. |
| Rommerskirchen, F., 2004. Land plant biomarkers as indicators of prevalent vegetation: a study of Holocene Southeast Atlantic continental margin sediments. Lecture at the Max-Planck Institute of Biogeochemistry (February 26th), Jena, Germany. |
RECORD OF PUBLICATIONS AND PRESENTATIONS
Published data: See Pangaea website
Poster [P] and oral [O] presentations are italic
| 2010 |
| Rommerskirchen, F., 2010. Reconstruction of terrestrial vegetation and climate by organic proxies: lipids, "Climate Change on Tectonic Time-Scales: Marrying Data and Earth System Models" Summer School of the DFG research unit "Understanding Cenozoic Climate Cooling" (22nd-23rd June), Bremen, Germany. [O] Rommerskirchen, F., Dupont, L., Condon, T.,Mollenhauer, G., Schefuß, E., 2010. Late Miocene biomarker and pollen records in in Southeast Atlantic Ocean sediments indicate enironmental changes, Book of Abstracts for the EGU meeting 2010 (2nd-7th May), Vienna, Austria. [P] Dupont, L., Rommerskirchen, F., Schefuß, E., Mollenhauer, G., 2010. Environmental changes in Southwest Africa during the Miocene C4 plant expansion, MARUM retreat (15th-16th March), Farge, Germany. [O] Rommerskirchen, F., Dupont, L., Condon, T.,Mollenhauer, G., Schefuß, E., 2010. Late Miocene biomarker and pollen records in Southeast Atlantic Ocean sediments indicate environmental changes, Book of Abstracts for the DFG IODP-ICDP Colloqium (9th-11th March), Frankfurt a.M., Germany, 124. [P] |
| 2009 |
| Dupont, L., Rommerskirchen, F., Condon, T., Mollenhauer, G., Schefuß, E., 2009. Environmental changes in Southwest Africa during the Miocene C4 plant expansion, 2009 AGU Fall Meeting (14th–18th December), San Francisco, California, USA. [P] Rommerskirchen, F., Dupont, L., Condon, T.,Mollenhauer, G., Schefuß, E., 2009. Southeast Atlantic upwelling intensity changes influencing late Miocene African C4 plant expansion?, 24th International Meeting on Organic Geochemistry (6th-11th September), Bremen, Germany. [P] Vogts, A., Moossen, H., Rommerskirchen, F., Rullkötter, J., 2009. Distribution patterns and stable carbon isotopic composition of alkanes and alkan-1-ols from plant waxes of African rain forest and savanna C3 species, Organic Geochemistry 40, 1037-1054 , doi: 10.1016/j.orggeochem.2009.07.011. Rommerskirchen, F., Dupont, L., Condon, T.,Mollenhauer, G., Schefuß, E., 2009. Southeast Atlantic upwelling intensity changes influencing late Miocene African C4 plant expansion?, Book of Abstracts for the EGU meeting 2009 (19th-24th April), Vienna, Austria. [P] Rommerskirchen, F., Dupont, L., Condon, T.,Mollenhauer, G., Schefuß, E., 2009. Southeast Atlantic upwelling intensity changes influencing late Miocene African C4 plant expansion?, Book of Abstracts for the DFG IODP-ICDP Colloqium (16th-18th March), Potsdam, Germany, 136-137. [P] |
| 2008 |
| Rommerskirchen, F., Dupont, L., Condon, T., Mollenhauer, G., Schefuß, E., 2008. Southeast Atlantic upwelling intensity changes influencing late Miocene African C4 plant expansion?, 2008 AGU Fall Meeting (15th–19th December), San Francisco, California, USA. [P] Gaines, S.M., Eglinton, G., Rullkötter, J., 2008. Echoes of Life: What Fossil Molecules Reveal About Earth History. Oxford University Press, New York, pp. 376. Rommerskirchen, F., Dupont, L., Schefuß, E., 2008. African climate changes during C4 plant evolution and expansion, UCCC Meeting (29th September), Bremen, Germany. [O] Rommerskirchen, F., Solloch, S., Herrlich, S., Lehlou, S.M.O., Dartige, A.O.Y., Michaelis, W., 2008. Natural variability of emissions of halogenated methanes from halophytes of the Mauritanian coastal area, Annual SOPRAN Meeting (11th-12th March), Warnemünde, Germany. [P,O] |
| 2007 |
| Rommerskirchen, F., Michaelis, W., 2007. First results from the 1st Banc D’Arguin expedition, Post Cruise Meeting M68/2, M68/3, P347, P348 & SOPRAN Theme 3 – Meeting (6th November 2007), Kiel, Germany. [O] Vogts, A., Moossen, H., Rommerskirchen, F., Rullkötter, J., 2007. Molecular isotopic composition and distribution patterns of long-chain n-alkanols from C3 plants growing in different tropical habitats, International Conference and 97th Annual Meeting of the Geologische Vereinigung e.V. (1st-5th October), Bremen, Germany. [P] Vogts, A., Moossen, H., Rommerskirchen, F., Rullkötter, J., 2007. Molecular isotopic composition and distribution patterns of long-chain n-alkanols from C3 plants growing in different tropical habitats, Book of Abstracts for the 23th International Meeting on Organic Geochemistry (9th-14th September), Torquay, United Kingdom. [P] Vogts, A., Moossen, H., Rommerskirchen, F., Rullkötter, J., 2007. Molecular ?13C values of leaf wax components from plants growing in different tropical habitats, Book of Abstracts for the Goldschmidt Meeting (19th-24th August), Cologne, Germany. [P] Rommerskirchen, F., 2007. Organic geochemical signatures indicating climate-dependent vegetation changes - C3/C4 plant competition, alkyl lipids and ?13C values. NEBROC/ECOLMAS course "Terrigenous climate signals in deep marine sediments", RCOM, Bremen, March 14th. [O] |
| 2006 |
| Rommerskirchen, F., Plader, A., Eglinton, G., Chikaraishi, Y., Rullkötter, J., 2006b. Chemotaxonomic significance of distribution and stable carbon isotopic composition of long-chain alkanes and alkan-1-ols in C4 grass waxes, Organic Geochemistry 37, 1303-1332. doi:10.1016/j.orggeochem.2005.12.013. [ABSTRACT] Rommerskirchen, F., Eglinton, G., Dupont, L., Rullkötter, J., 2006a. Glacial/interglacial changes in Southern Africa: Compound-specific d13C land plant biomarker and pollen records from Southeast Atlantic continental margin sediments, Geochemistry, Geophysics, Geosystems 7, Q08010, doi10.1029/2005GC001223. 16 August 2006 [ABSTRACT] Rommerskirchen, F., 2006. Fossil C4 plant signals in Southeast Atlantic Ocean continental margin sediments indicate climate-dependent vegetation changes on the adjacent continent, Online-Ph.D. thesis, BIS - University of Oldenburg. [ABSTRACT] |
| 2005 |
| Rommerskirchen, F., Eglinton, G., Dupont, L., Rullkötter, J., 2005. Marine sedimentary record of the phytogeographic competition of C3 and C4 plants due to climatic glacial/interglacial changes in Southern Africa. 1st Northern German Organic Geochemistry Workshop (17th June), Bremen, Germany. [O] |
| 2004 |
| Rommerskirchen, F., Eglinton, G., Dupont, L., Rullkötter, J., 2004. Evidence of vegetation change due to glacial/interglacial changes: A study of land plant biomarker and pollen records in Southeast Atlantic continental margin sediments, Book of Abstracts for the IODP/ICDP Euroforum (17th-19th March), Bremen, Germany. [P] Rommerskirchen, F., Eglinton, G., Dupont, L., Rullkötter, J., 2004. A north to south transect of Holocene Southeast Atlantic continental margin sediments: Relationship between aerosol transport and compound-specific ?13C land plant biomarker and pollen records, Book of Abstracts for the IODP/ICDP Euroforum (17th-19th March), Bremen, Germany. [P] Rommerskirchen, F., Eglinton, G., Dupont, L., Rullkötter, J., 2004. Land plant biomarkers as indicators of prevalent vegetation: A study of Holocene Southeast Atlantic continental margin sediments, Lecture at the Max-Planck Institute of Biogeochemistry (26th February), Jena, Germany. [O] |
| 2003 |
| Rommerskirchen, F., Eglinton, G., Dupont, L., Günter, U., Wenzel, C., Rullkötter, J., 2003. A North to South transect of Holocene southeast Atlantic continental margin sediments: Relationship between aerosol transport and compound-specific d13C land plant biomarker and pollen records, Geochemistry, Geophysics, Geosystems 4(12), 1101, doi: 10.1029/2003GC000541. 10. December 2003. [ABSTRACT] Rommerskirchen, F., Eglinton, G., Dupont, L., Rullkötter, J., 2003. Land plant biomarkers as indicators of prevalent vegetation: A study of Holocene Southeast Atlantic continental margin sediments, Book of Abstracts for the 21th International Meeting on Organic Geochemistry (8th-12th September), Krakow, Poland, 218-219. [P] Rommerskirchen, F., Eglinton, G., Dupont, L., Rullkötter, J., 2003. Land plant biomarkers as indicators of prevalent vegetation: A study of Holocene Southeast Atlantic continental margin sediments, Book of Abstracts for the 18th Meeting of Sedimentologists 'Sediment 2003' (10th-14th June), Wilhelmshaven, Germany, pp.135. [P] Rullkötter, J., Rommerskirchen, F., Eglinton, G., Dupont, L., 2003. Land plant biomarkers as indicators of prevalent vegetation: A study of Holocene Southeast Atlantic continental margin sediments, Book of Abstracts for the Organic Geochemistry Symposium (11th-13th May), Stockholm, Sweden. [P] Rommerskirchen, F., Eglinton, G., Dupont, L., Rullkötter, J., 2003. Land plant biomarkers as indicators of prevalent vegetation: A study of Holocene Southeast Atlantic continental margin sediments, Book of Abstracts for the DFG IODP-ICDP Colloqium (26th-28th March), Mainz, Germany, 60-61. [P] |
| 2002 |
| Rommerskirchen, F., Wenzel, C., Rullkötter, J., 2002. Klimasignale in den Sedimenten des südwestafrikanischen Kontinentalrands (ODP Leg 175, Site 1075A, 1079A und 1082A, Book of Abstracts for the DFG ICDP-ODP Colloqium (6th-8th June), Potsdam, Germany, 30-31. [P] |
| 2001 |
| Rommerskirchen, F., 2001. Verteilungsmuster und Kohlenstoffisotopenzusammensetzung langkettiger n-Alkohole in Tiefseesedimenten des südwestafrikanischen Kontinentalrands, Diploma thesis of the Carl-von-Ossietzky University of Oldenburg, Germany. |
MY FAVORITE PUBLICATIONS
Here I generated a short list of publications, which might be of interest - like milestones in my research field. Be careful, this is an incomplete list.
| Beerling, D. J. and C. P. Osborne (2006). "The origin of the savanna biome." Global Change Biology 12(11): 2023-2031. |
| Cerling, T. E., J. M. Harris, et al. (1997). "Global vegetation change through the Miocene/Pliocene boundary." Nature 389: 153-158. |
| Cerling, T. E., Y. Wang, et al. (1993). "Expansion of C4 ecosystems as an indicator of global ecological change in the late Miocene." Nature 361: 344-345. |
| Chibnall, A. C., S. H. Piper, et al. (1934). "The constitution of the primary alcohols, fatty acids and paraffins present in plant and insect waxes." Biochemical Journal 28: 2189-2208. |
| Collatz, G. J., J. A. Berry, et al. (1998). "Effects of climate and atmospheric CO2 partial pressure on the global distribution of C4 grasses: present, past, and future." Oecologia 114: 441-454. |
| Collister, J. W., G. Rieley, et al. (1994). "Compound-specific d13C analyses of leaf lipids from plants with differing carbon dioxide metabolisms." Organic Geochemistry 21(6/7): 619-627. |
| Dove, H., R. W. Mayes, et al. (1996). "Effects of species, plant part, and plant age on the n-alkane concentrations in the cuticular wax of pasture plants." Aust. J. Agric. Res. 47: 1333-47. |
| Eglinton, G., A. G. Gonzalez, et al. (1962). "Hydrocarbon constituents of the wax coatings of plant leaves: a taxonomic survey." Phytochemistry 1: 89-102. |
| Eglinton, T.I., and Eglinton, G. (2008, in press). "Molecular Proxies for Paleoclimatology". Earth and Planetary Science Letters. |
| Eglinton, G. and Hamilton, R.J. (1963). "The distribution of alkanes. In: Chemical Plant Taxonomy (Ed. T. Swain). Academic Press, pp. 187-217. |
| Ehleringer, J. R., T. E. Cerling, et al. (1997). "C4 photosynthesis, atmospheric CO2, and climate." Oecologia 112(3): 285-299. |
| Grass Phylogeny Working Group (2001). "Phylogeny and subfamilial classification of the grasses (Poaceae)." Annals of the Missouri Botanical Garden 88: 373-457. |
| Farquhar, G. D. (1983). "On the nature of carbon isotope discrimination in C4 species." Aust. J. Agric. Res. 10: 205-26. |
| Farquhar, G. D., J. R. Ehleringer, et al. (1989). "Carbon isotope discrimination and photosynthesis." Annual Review of Plant Physiology and Plant Molecular Biology 40: 503-537. |
| Farquhar, G. D., M. H. O'Leary, et al. (1982). "Om the relationship between carbon isotope discrimination and the intercellular carbon dioxide concentration in leaves." Australian Journal of Plant Physiology 9: 121-137. |
| Hamilton, R. J. (1995). Waxes: Chemistry, Molecular Biology and Functions. Dundee, The Oily Press Ltd. |
| Hattersley, P. W. (1982). "d13C values of C4 types of grasses." Aust. J. Agric. Res. 9: 139-54. |
| Hattersley, P. W. (1987). "Variations in photosynthetic pathways." Grass systematics and evolution: 49-64. |
| Hayes, J. M. (1993). "Factors controlling 13C contents of sedimentary organic compounds: Principles and evidence." Marine Geology 113: 111-125. |
| Jacobs, B. F., J. D. Kingston, et al. (1999). "The origin of grass-dominated ecosystems." Annals of the Missouri Botanical Garden 86: 590-643. |
| Keeley, J. E. and P. W. Rundel (2003). "Evolution of CAM and C4 carbon-concentrating mechanisms." International Journal of Plant Science 164(3 Suppl.): S55-S77. |
| Kolattukudy, P. E. (1976). Chemistry and Biochemistry of Natural Waxes. Amsterdam, Oxford, New York, Elsevier. |
| Maffei, M. (1996). "Chemotaxonomic significance of leaf wax alkanes in the Gramineae." Biochemical Systematics and Ecology 24(1): 53-64. |
| Osborne, C. P. and D. J. Beerling (2006). "Nature's green revolution: the remarkable evolutionary rise of C-4 plants." Philosophical Transactions of the Royal Society B-Biological Sciences 361(1465): 173-194. |
| Pancost, R. D. and C. S. Boot (2004). "The palaeoclimatic utility of terrestrial biomarkers in marine sediments." Marine Chemistry 92: 239-261. |
| Rieley, G., J. W. Collister, et al. (1993). "Gas Chromatography/Isotope Ratio Mass Spectrometry of Leaf Wax n-Alkanes from Plants of Differing Carbon Dioxide Metabolisms." Rapid Communications in Mass Spectrometry 7: 488-491. |
| Sage, R. F. (2004). "The evolution of C4 photosynthesis." New Phytologist 161: 341-370. |
| Schidlowski, M. (1987). "Application of stable carbon isotopes to early biochemical evolution on earth." Annu. Rev. Earth Planet. Sci. 15: 47-72. |
| Schulze, E.-D., Beck, E., Müller-Hohenstein, K. (2005). "Plant Ecology". Springer, Berlin, pp. 702. |
| Schulze, E.-D., R. Ellis, et al. (1996). "Diversity, metabolic types and d13C carbon isotope ratios in the grass flora of Namibia in relation to growth form, precipitation and habitat conditions." Oecologia 106: 352-369. |
| Shepherd, T. and D. W. Griffiths (2006). "The effects of stress on plant cuticular waxes." New Phytologist 171(3): 469-499. |
| Smith, D. G., R. W. Mayes, et al. (2001). "Effect of species, plant part and season of harvest on n-alkane concentrations in the cuticular wax of common rangeland grasses from southern Africa." Aust. J. Agric. Res. 52: 875-882. |
| Watson, L. and M. J. Dallwitz (1992 onwards). Grass Genera of the World: Description, Illustration, and Information Retrieval. |
EXTERNAL LINKS
Institutes and scientific web pages
Understanding Cenozoic Climate Cooling: The Role of the Hydrological Cycle, the Carbon Cycle, and Vegetation Changes
Web page of my current project
Institute of Chemistry and Biology of the Marine Environment (ICBM)
(University of Oldenburg, Germany)
Ocean Drilling Program (ODP)
Pangaea
Publishing Network for Geoscientific & Environmental Data
IRI/LDEO Climate Data Library
Geochemical links
The Lipid Library
by Dr William (Bill) W. Christie
Botanical links
The Families of Flowering Plants: Descriptions, Illustrations, Identification, and Information Retrieval
by L. Watson and M. J. Dallwitz
SCOPE 56
Global Change: Effects on Coniferous Forests and Grasslands
Grass data base: Grass Genera of the World
by L. Watson and M. J. Dallwitz
Botany Online
University of Hamburg
On-Line Biology Book
by M.J. Farabee
Checklist of Online Vegetation and Plant Distribution Maps
by Claire Englander and Philip Hoehn
GAIM
Global palaeovegetation data for climate-biosphere model evaluation
Africa ...
Topographic and Climate Database for Africa
by M.F.Hutchinson
Central African Regional Program for the Environment
Palaeovegetation Maps of Africa
by PD Dr. Dieter Anhuf, Birgit Schröder and Thomas Motzer
PlantZAfrica.com
The site for information about plants native to southern Africa and related topics.
...and the world
Visible Earth
A catalog of NASA images and animations of our home planet
Global Land Cover Characterisation
by USGS Earth Resources Observation and Science Center (EROS)
Global Land Environments since the Last Interglacial
by Jonathan Adams
PALEOMAP Project
by Christopher Scotese
Characterization of troposphereic aerosols over the oceans with the AVHRR
by Rudolf B. Husar
Online Map Creation
Global Gazetteer
Data of important places in the world
Private web pages
Florian Rommerskirchen (in german)
The private site of Florian Rommerskirchen: photography and music. Unfortunately under construction.
Feuerwerk (in german)
A german firework portal: Feuerwerk-Kalender und Feuerwerksfotos