Dr. Ulrike Holzwarth

• Forschungsschwerpunkte
• Proxies
• Publikationen
• Konferenzen und Workshops
• Koordination und Lehre
• Schiffsexpeditionen
• Curriculum vitae

peer-reviewed

Govin, A., Holzwarth, U., Heslop, D., Ford Keeling, L., Zabel, M., Mulitza, S., Collins, J.A., Chiessi, C.M., 2012. Distribution of major element ratios in Atlantic surface sediments (36°N-49°S): imprint of terrigenous input and continental weathering, Geochem. Geophys. Geosyst., 13, Q01013, 10.1029/2011gc003785.

Holzwarth, U., Meggers, H., Esper, O., Kuhlmann, H., Freudental, T., Hensen, C., Zonneveld, K.A.F., 2010. NW African climate variations during the last 47,000 years: Evidence from organic-walled dinoflagellate cysts. Palaeogeography, Palaeoclimatology, Palaeoecology 291, 3-4: 443-455.

Holzwarth, U., Esper, O., Zonneveld, K. A. F., 2010. Organic-walled dinoflagellate cysts as indicators of oceanographic conditions and terrigenous input in the North-West African upwelling region. Review of Paleobotany and Palynology 159, 1-2: 35-55.

Mertens, K. , Ribeiro, S., Bouimetarhan, I., Caner, H., Combourieu-Nebout, N., Dale, B., de Vernal, A., Ellegaard, M., Filipova, M., Godhe, A., Grøsfjeld, K., Holzwarth, U., Kotthoff, U., Leroy, S., Londeix, L., Marret, F., Matsuoka, K., Mudie, P., Naudts, L., Peña-Manjarrez, J., Persson, A., Popescu, S., Sangiorgi, F., van der Meer, M., Vink, A., Zonneveld, K.A.F., Vercauteren, D., Vlassenbroeck, J., Louwye, S., 2009. Lingulodinium machaerophorum process length variation in surface sediments. Marine Micropaleontology 70, 1-2: 54-69.

Holzwarth, U., Esper, O., Zonneveld, K.A.F., 2007. Distribution of organic-walled dinoflagellate cysts in surface sediments of the Benguela upwelling system and their relationship to environmental conditions. Marine Micropalaeontology 64: 91-119.

Zonneveld, K.A.F., Bockelmann, F., Holzwarth, U., 2007. Selective preservation of organic-walled dinoflagellate cysts as a tool to quantify past net primary production and bottom water oxygen concentrations. Marine Geology 237: 109-126.

Weitere Publikationen

Holzwarth, U. und Riekens, E., 2011. Klima-Engineering Recht. Neue Zeitschrift für Verwaltungsrecht, 11/2011, 670.

Markus, T. und Holzwarth, U., 2010. Klimaschutzrecht im Wandel. Neue Zeitschrift für Verwaltungsrecht, 14/2010, 883.

Holzwarth, U., 2009. Characterization of West African upwelling areas based on organic-walled dinoflagellate cysts and their application in the fossil record. Ph.D. thesis, Universität Bremen. 229 pp.

Holzwarth, U., 2003. Dinoflagellate cyst investigations. In: Zabel and cruise participants, Report and preliminary results of Meteor Cruise M57/2, Walvis Bay- Walvis Bay, 11.02.-12.03.2003, Ber. Fachber. Geowiss. Univ. Bremen, 200, 136 pp.

ECC 2011 (2nd Young Scientists Excellence Cluster Conference), Bremen, 3-5 October 2011
Holzwarth, U., Dupont, L., Möbius, J., Zonneveld, K.A.F., Schulz, M.: Separating natural variability from anthropogenic induced changes: an example from Western Sahel. (Poster)

GEO Munich 2011, Germany, 4-7 September 2011
Holzwarth, U., Dupont, L., Möbius, J., Zonneveld, K.A.F., Schulz, M.: Western Sahel hydrology and land use over the last three millenia: separating natural variability from anthropogenic induced changes. (Oral)

DINO 9 2011, 9th International Conference on Modern and Fossil Dinoflagellates, Liverpool, 28 August - 2 September 2011
Holzwarth, U., Dupont, L., Möbius, J., Zonneveld, K.A.F., Schulz, M.: Sahel hydrology and land use over the last three millennia: separating natural variability from anthropogenic induced changes. (Poster)

EGU General Assembly, Vienna, Austria, 3-8 April 2011
Holzwarth, U., Dupont, L., Möbius, J., Zonneveld, K.A.F., Schulz, M.: Western Sahel hydrology and land use over the last three millennia: natural versus anthropogenic influences. (Oral)

EGU General Assembly, Vienna, Austria, 3-8 April 2011
Govin, A., Holzwarth, U., Heslop, D., Ford Keeling, L., Zabel, M., Mulitza, S., Collins, J.A., Chiessi, C.M.: Tracing African and South American terrigenous input from the modern distribution of major elements in Atlantic surface sediments (35°N-50°S). (Oral)

ICP 10 (10th International Conference on Paleoceanography), San Diego (USA), 29 Aug - 3 Sep 2010
Holzwarth, U., Meggers, H., Esper, O., Kuhlmann, H., Freudental, T., Hensen, C., Zonneveld, K.A.F.: Glacial to Holocene coastal upwelling variability and sea-level related productivity off NW-Africa. (Poster)

ECOLMAS workshop: (Palaeo-) ecology of cyst forming dinoflagellates, Bremen, 17-21 May 2010.
Holzwarth, U., Meggers, H., Esper, O., Kuhlmann, H., Freudental, T., Hensen, C., Zonneveld, K.A.F.:
Why dinocyst accumulation rates matter: a paleoreconstruction from NW Africa. (Oral)
 
Workshop on dinoflagellates and their cysts, GEUS, Kopenhagen, Dänemark, 2006
Holzwarth, U., Esper, O., Zonneveld, K.A.F.: Distribution of organic-walled dinoflagellate cysts in surface sediments of the Benguela upwelling system and their relationship to environmental conditions. (Oral) pdf

AGU Fall Meeting, San Francisco, USA, 5-9 December 2005
Holzwarth, U., Esper, O., Zonneveld, K.A.F., Willems, H.: Spatial distribution of organic-walled dinoflagellate cysts in surface sediments of the Benguela upwelling system and their relationship to environmental parameters. (Poster)

DINO 7, 7th International Conference on Modern and Fossil Dinoflagellates; Nagasaki, Japan, 21-25 September 2003
Holzwarth, U., Esper, O., Zonneveld, K.A.F., Willems, H.: Spatial distribution of organic-walled dinoflagellate cysts in surface sediments of the Benguela upwelling system and their relationship to environmental parameters. (Oral)

4. Interdisziplinäre Dinoflagellaten-Tagung, Helgoland, Germany, 19-21 September 2002
Holzwarth U., Siggelkow D., Esper O., Vink A., Zonneveld, K.A.F., Willems, H.: Kalkige und organisch-wandige Dinoflagellatenzysten in Oberflächensedimenten vor Nordwestafrika. (Oral)

Koordination:

Ko-Organisation der YSM 2012 in Kiel

MARUM Post Doc Vertreterin Juni 2011 - Januar 2012

Koordination der ECC 2011 2nd Young Scientist Excellence on Marine and Climate Research: Perspectives from Natural and Social Sciences, Bremen, 4-5 October 2011.

Lehre innerhalb der Graduiertenschule GLOMAR:

* Microworkshops (Beispiele):
- How to ask questions after a presentation
- Establishing and chairing of Conference Sessions
- Scientific hypotheses

* Introductory course for social scientists: Physical Oceanography and Paleoceanography

* Concentration and Relaxation in work life (for GLOMAR and POLMAR)

* Working with Photos and Figures (with Andreas Basse)

Öffentliche Vorträge:

Maritime Woche, Haus der Wissenschaft, Bremen, 22 September 2011:
Kleine Algen - Große Wirkung: Dinoflagellaten im Ozean.

Lehrerworkshop <Klima und Mehr> GeoMunich, 4-7 September 2011: Klimaarchiv Meeresboden

Wissen um elf, Haus der Wissenschaft, Bremen, 4 December 2010: Dinos auf dem Meeresboden? Lebensweise von Dinoflagellaten und Klimaforschung mit Dinoflagellatenzysten

FS POSEIDON Expedition P339 Piraeus – Messina (16.6.-3.7.2006). Calabrian and Adriatic palaeo-productivity and Climatic variability in the last two Millennia

FS METEOR Expedition M57/2 Walvis Bay – Walvis Bay (11.2.-12.3.2003). Sedimentation processes off the Namibian continental slope – Preservation of organic-walled dinoflagellate cysts in low oxygen sediments

FS VICTOR HENSEN expedition UV III Bremerhaven – Helgoland – Bremerhaven (11.-22.6.1996). Reaction of phytoplancton to enhanced UV-radiation-experiments in the sunshine-simulator