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Dr. Dirk Lohmann

 

Campus Golm
University of Potsdam
Plant Ecology and Nature Conservation
Am Mühlenberg 3
House 60, Office 3.11
14476 Potsdam (Golm)


Education

  • 2000 - 2002: Biology, University of Ulm (pre-diploma)
  • 2002 - 2007: Biology, University of Potsdam (Plant Ecology and Nature Conservation; Freshwater Ecology; Ecological Genetics; Geoinformatics)
  • 2006 - 2007: Diploma Thesis "Plant-Plant interaction modelling"
  • 2010: International Teaching Professionals Program (University of Potsdam)
  • 2007 - 2012: PhD Thesis "Sustainable management of semi-arid African savannas under environmental and political change

Current Employment

since 2019: Project coordinator & PostDoc in the ORYCS project

since 08/2014: Project coordinator & PostDoc in the OPTIMASS project (BMBF, SPACES initiative)

since 2012: PostDoc Position (Plant Ecology and Nature Conservation, University of Potsdam)

Research Interests

  • Sustainable use of savannas
  • Feedbacks of ecological and socio-economic processes in savanna systems (Ecological-Economic Modelling)
  • Interactive roleplays with simulation models
  • The impacts of landuse and global change on biodiversity of savanna systems
  • Individual-based and process-oriented ecological modelling
  • Interaction of landuse and global change
  • Genetic algorithms and optimization
  • Southern African Savannas
  • Savanna rangeland management
  • Agent-based modelling
  • NetLogo

Projects

Publications

  • Guo, T., Weise, H., Fiedler, S., Lohmann, D., Tietjen, B., 2018. The role of landscape heterogeneity in regulating plant functional diversity under different precipitation and grazing regimes in semi-arid savannas. Ecological Modelling 379, 1–9. doi.org/10.1016/j.ecolmodel.2018.04.009
  • Lohmann D, Guo T, Tietjen B (2018): Zooming in on coarse plant functional types - simulated response of savanna vegetation composition in response to aridity and grazing, Theoretical Ecology, DOI: 10.1007/s12080-017-0356-x
  • Synodinos AD. Tietjen B, Lohmann D, Jeltsch F (2018): The impact of inter-annual rainfall variability on African savannas changes with mean rainfall. Journal of Theoretical Biology (437) pp. 92-100 DOI: 10.1016/j.jtbi.2017.10.019

  • Synodinos AD, Eldridge D, Geissler K, Jeltsch F, Lohmann D, Midgley G, Blaum N (2017): Remotely sensed canopy height reveals three pantropical ecosystem states: comment, Ecology doi: 10.1002/ecy.1997

  • Falk T, Kirk M, Lohmann D, Kruger B, Hüttich C & Kamukuenjandje R (2017): The profits of excludability and transferability in redistributive land reform in central Namibia, Development Southern Africa, DOI: 10.1080/0376835X.2016.1269633
  • Guo T, Lohmann D, Tietjen B (2016): Response of semi-arid savanna vegetation composition towards grazing along a precipitation gradient—The effect of including plant heterogeneity into an ecohydrological savanna model; Ecological Modeling 325, pp. 47-56
  • Falk T, Lohmann D, Azebaze N (2016): Congruence of appropriation and provision in collective water provision in Central Namibia; International Journal of the commons, Vol. 10, no 1, pp. 71–118 DOI: 10.18352/ijc.583
  • Lohmann D, T Falk, K Geißler, N Blaum, F Jeltsch (2014): Determinants of semi-arid rangeland management in a landuse reform setting in Namibia. Journal of Arid Environments 100 - 101. pp. 23 - 30. http://dx.doi.org/10.1016/j.jaridenv.2013.10.005
  • Müller, E N, L van Schaik, T Blume, A Bronstert, J Carus, J H Fleckenstein, N Fohrer, K Geißler, H H Gerke, T Graeff, C  Hesse, A Hildebrandt, F Hölker, P Hunke, K Körner, J Lewandowski, Lohmann  , K Meinikmann, A Schibalski, B Schmalz, B Schröder und B Tietjen (2014): Scales, key aspects, feedbacks and challenges of ecohydrological research in Germany. HyWa 58: 221-240 DOI: 10.5675/HyWa_2014,4_2
  • Lohmann D, B Tietjen, N Blaum, D F Joubert, F Jeltsch (2012): Shifting thresholds and changing degration patterns: climate change effects on the simulated long-term response of a semi-arid savanna to grazing. Journal of Applied Ecology 49 (4): 814 - 823.
  • Lohmann D, T Falk, E-A Nuppenau, E Rossmanith, N Blaum, F Jeltsch (2010): Integrating socio-economic and ecological research in F Jeltsch et al.: Impacts of landusse and climate change on the dynamics and biodiversity in the Thornbush Savanna Biome. pp. 63 - 65. - In: Hoffmann M T, U Schmiedel, N Jürgens [Eds.]: Biodiversity in Southern Africa. Volume 3: Implications for landuse and management. pp. 33 - 74. Klaus Hess Publisher, Göttingen & Windhoek.
  • Falk, T, B Kruger, D Lohmann, R Kamukuenjandje, I Zimmermann, M Kirk, R Kambuli, L Koop, N Heil, L Lebershausen, D Neu, A Frank (2010): Economic and ecological indicators of land reform projects in easstern Namibia. - In: Schmiedel U, N Jürgens [Eds.]: Biodiversity in Southern Africa. Volume 2: Patterns and processes at regional scale. pp. 200 - 206. Klaus Hess Publishers, Göttingen & Windhoek.
  • Jeltsch F, N Blaum, D Lohmann, S Meyfarth, E Rossmanith, S Schütze, J Tews, B Tietjen, M Wichmann, M Wieczorek (2010): Modelling vegetation change in arid and semi-arid savannas. - In: Schmiedel U, N Jürgens [Eds.]: Biodiversity in Southern Africa. Volume 2: Patterns and processes at regional scale. pp. 274 - 282. Klaus Hess Publishers. Göttingen & Windhoek

Conference contributions

  • Lohmann D, Münch E, Jeltsch F (2016) The`Rhythm ́ofRangelandManagement– PlantEcology and Rest-Rotation Strategies in Simulated Savannah Vegetation Dynamics, Poster @ Internationaler Tropentag, Vienna Austria, Sep 18-21 2016
  • Lohmann D, Münch E, Jeltsch F (2017): Modelling the savanna - rotational grazing effects; Oral presentation @ Namibian National Rangeland Forum 2017, Otjiwarongo, Namibia
  • Lohmann D, B Tietjen, N Blaum, D F Joubert, F Jeltsch (2013): The role of a water dependent bottleneck in semi-arid savannas response to climate change. Oral presentation at the annual meeting of the Ecological Society of Germany, Switzerland and Austria (GfÖ) in Potsdam, Germany.
  • Falk T, I Zimmermann, D Lohmann (2010): Rangeland condition as precondition and outcome of land reform policy in Namibia. Accepted for the IX International Rangeland Congress. Rosario, Argentina.
  • Lohmann D, T Falk, E Rossmanith, N Blaum, M Kirk, F Jeltsch (2009): Launch of the ecological-economic savanna rangeland training support tool. Oral presentation at the BIOTA Sustaining our Savannas Open Day at Polytechnic of Namibia, Windhoek, Namibia.
  • Lohmann D, T Falk, E Rossmanith, N Blaum, M Kirk, F Jeltsch (2009): Application of an ecological-economic rangeland management model for interactive roleplays, scientific analyses and training purposes 13th Namibian Rangeland Forum: The role of biodiversity in rangeland management and policy, Windhoek, 27 - 29 October 2009. p 12
  • Lohmann D, T Falk, E Rossmanith, B Tietjen, M Kirk, F Jeltsch (2009): How do land reform beneficiaries decide on resource use? Empirical experiments based on an ecological-economic modelling approach. Diversitas Open Science Conference 2. 13 - 16 October 2009, Cape Town, Book of abstracts. p. 141
  • Falk T, D Lohmann, M Kirk, F Jeltsch (2009): Cooperation in water supply manangement in small groups - Participatory assessments with bio-economic models. Presented at the 8th session of the European School on New Institutional Economics. Cargese, France.
  • Lohmann D, N Blaum, S Domptail, A Popp, E Rossmanith, F Jeltsch (2008): Dynamical linkage of ecological and economic models of Namibian commercial rangelands: assessing land use impacts and identifying sustainable land use strategies. Biodiversity of Africa Observation and Sustainable Management for our Future, Spier, RSA.