My main research interest is to understand the distribution of life on earth (e.g. species, biodiversity, vegetation types, ecosystems) through space and time. I am particularly interested in interactions between climate and the terrestrial biosphere. This includes potential impacts of climate change on species, ecosystems and associated ecosystem services, as well as the role of the biosphere in the earth climate system (e.g. carbon and water cycling). Methodologically, vegetation and ecosystem modelling at local to global scales has been at the core of my work.
Examples of current research projects:
– EarthShape: Earth Shaping by Biota
– Ecosystem Management Support for Climate Change in Southern Africa (EMSAfrica)
– The open Climate Impacts Encyclopedia (ISIpedia)
– Developing dynamic regional to global vegetation models
– Accounting for habitat characteristics and biotic interactions in biodiversity models
– Modelling the role of fire in the functioning of the terrestrial biosphere
– Effects of plant trait variability on ecosystem stability and resilience
– Assessing the impacts of climate change on biodiversity and ecosystem Services
– Causes and ecosystem impacts of megafauna extinctions
– Impacts of climate change and air pollution on mountain ecosystems in Scandinavia, France and Spain
Examples of environmental impact assessments:
– Intergovermental Platform on Biodiversity and Ecosystem Services (IPBES), ongoing
Policy support tools and methodologies for scenario analysis and modelling of biodiversity and ecosystem services
– North Sea Region Climate Change Assessment (NOSCCA, chapter Terrestrial Ecosystems)
My work is focused on understanding the dynamics of tropical forests, its natural spatial and temporal patterns, and its response to anthropogenic pressures. In order to embrace its complexity, I use forest modelling and remote sensing as tools for tropical forest research, ultimately aiming for future applications in order to halt biodiversity loss in a future with strong human tropical presence.
I have a Bachelor’s degree in Environmental Sciences (2006), Master’s degree in plant ecology (2009) in Pernambuco Federal University and PhD (2017) in Ecological Modelling from the University of Osnabrück. I have experience in the field of ecology, with emphasis in forest ecology; ecological modelling, with focus on forest dynamics of fragmented landscapes and geographical information systems, climate change with focus on the carbon and hydrology cycles.
Forest modelling, Animal-plant interactions, Forest fragmentation, Remote sensing, Carbon and hydrological cycles
- Environmental changes in biodiversity hotspot ecosystems of South Ecuador: RESPonse and feedback effECTs (RESPECT)
RESPECT aims to unveil how major ecosystem functions, (i) ecosystem biomass production, and (ii) water fluxes, are affected by ongoing and future environmental changes through alterations in response and effect traits of relevant biota for the mountain rain forest in South Ecuador. This question is addressed through the synergy of field and modelling studies, for which I carry out the development. The model also seeks to address questions of climate change and anthropogenic nutrient deposition in tropical mountain forests to ecosystem function and biodiversity loss along an elevational gradient.
The model in development for this project is the LPJ-GUESS-HUMBOLDT model, which includes implementation for the topics:
- Trait diversity
As opposed to the plant functional type approach, in which few representative species are simulated, the use of dynamic traits allows the plant community to adapt through ecological filtering to local simulated conditions. This allows for more adaptive simulations in which functional biodiversity can be represented and its value tested.
- Carbon, Nitrogen, Phosphorus soil-vegetation dynamics
The role of soil organic matter dynamics in vegetation structure and composition has been a hot topic in recent years due to their limiting effect on plant productivity during climate change scenarios. The implementation of these nutrient dynamics will also permit a better understanding of e.g. temperature increase and soil carbon storage, and the effects of increased human nutrient deposition.
- Biotic interactions
LPJ-GUESS-HUMBOLDT also includes the representation of biotic interactions in its development, which have a significant effect on vegetation communities. The model will include both herbivory and seed-dispersal processes which are long known in empirical studies to affect several aspects of community composition and nutrient cycling.
- Coupling with hydrological and atmospheric models
In addition to the development of novel modules, coupling with an atmospheric and a hydrological model is on course, which will allow for the exchange of variables. From the model`s perspective, this represents a whole new level of complexity because it allows driving data which was previously fixed to be influenced by model outputs.
The main focuses of my research are vegetation and ecosystem processes and the role of vegetation in the Earth system. To study these topics, I use process-based models (primarily the Dynamic Global Vegetation Model LPJ-GUESS) applied to spatial scales ranging from regional to global and temporal scales ranging from millions of years ago to the next century. I am particularly interested in the effects and feedbacks of fire in the Earth system.
Fire in the Earth System – I am working to improve the process-based representation of wildfire (in particular the SPITFIRE model) in vegetation models. Fire is key in shaping the functioning and structure of large areas of the terrestrial land surface and is responsible for large carbon dioxide and other trace gas fluxes. As part of this work I am a coordinator of the Fire Model Intercomparison Project (FireMIP, website to be moved from KIT to Senckenberg soon)
Coupling LPJ-GUESS to an Atmospheric Chemistry enabled GCM – I am also working on a combined modelling framework which couplies LPJ-GUESS to the EMAC atmospheric chemistry model utilizing the MESSy interface. This work will enable the investigation of many atmosphere-biosphere interactions and feedback including tracing gas emissions from vegetation and fire, changing vegetation structure and function, tropospheric ozone damage to plants, and Nitrogen fertilization and emissions.
DGVMTools – an R-package of tools for reading, processing, analyzing, and plotting output dynamic global vegetation models.
2010 PhD awarded, University of Glasgow
2005-2010 PhD Studies in experimental high-energy physics, University of Glasgow/Deutsches Electronen Synchrotron (DESY), Hamburg
2005 MSci awarded, University of Glasgow
2001-2005 BSc/MSci Studies in Physics and Mathematics, University of Glasgow
Forrest, M., Tost, H., Lelieveld, J., & Hickler, T. (2020). Including vegetation dynamics in an atmospheric chemistry-enabled general circulation model: linking LPJ-GUESS (v4.0) with the EMAC modelling system (v2.53). Geoscientific Model Development, 13(3), 1285–1309. https://doi.org/10.5194/gmd-13-1285-2020
Feurdean, A., … Forrest, M., … & Hickler, T. (2020). Fire hazard modulation by long-term dynamics in land cover and dominant forest type in eastern and central Europe. Biogeosciences, 17(5), 1213–1230. https://doi.org/10.5194/bg-17-1213-2020
Teckentrup, L., Harrison, S. P., Hantson, S., Heil, A., Melton, J. R., Forrest, M., Li, F., Yue, C., Arneth, A., Hickler, T., Sitch, S., & Lasslop, G. (2019). Response of simulated burned area to historical changes in environmental and anthropogenic factors: a comparison of seven fire models. Biogeosciences, 16(19), 3883–3910. https://doi.org/10.5194/bg-16-3883-2019
Andela, N., Morton, D. C., Giglio, L., Chen, Y., Werf, G. R. van der, Kasibhatla, P. S., DeFries, R. S., Collatz, G. J., Hantson, S., Kloster, S., Bachelet, D., Forrest, M., Lasslop, G., Li, F., Mangeon, S., Melton, J. R., Yue, C., & Randerson, J. T. (2017). A human-driven decline in global burned area. Science, 356(6345), 1356–1362. https://doi.org/10.1126/science.aal4108
Hantson, S., Arneth, A., Harrison, S. P., Kelley, D. I., Prentice, I. C., Rabin, S. S., Archibald, S., Mouillot, F., Arnold, S. R., Artaxo, P., Bachelet, D., Ciais, P., Forrest, M., Friedlingstein, P., Hickler, T., Kaplan, J. O., Kloster, S., Knorr, W., Lasslop, G., Li, F., Mangeon, S., Melton, J. R., Meyn, A., Sitch, S., Spessa, A., van der Werf, G. R., Voulgarakis, A., & Yue, C. (2016). The status and challenge of global fire modelling. Biogeosciences, 13(11), 3359–3375. https://doi.org/10.5194/bg-13-3359-2016
Forrest, M., Eronen, J. T., Utescher, T., Knorr, G., Stepanek, C., Lohmann, G., & Hickler, T. (2015). Climate-vegetation modelling and fossil plant data suggest low atmospheric CO2 in the late Miocene. Clim. Past, 11(12), 1701–1732. https://doi.org/10.5194/cp-11-1701-2015
I am a quantitative ecologist specialized in freshwater ecology, with some years spent in marine science and terrestrial botany. In my research, I love to break down complex patterns into understandable chunks, which could be generalized to understand the overall complexity. Throughout my career, I worked on the interaction between humans and nature and currently focus on how humans drive biodiversity change by introducing new species, so-called neobiota. I strive to understand the introduction and establishment of neobiota over large spatial scales and how this has changed in the past and will change in the future. The spread and establishment of neobiota are tightly coupled to human activity, and as a consequence it is necessary to first understand changes in human activity related to neobiota such as trade, transport, and human migration over large spatial and temporal scales. Much of my research therefore deals with the analysis of human activity to predict the spread and the establishment of neobiota.
You can find out more about me and my work on my personal website here.
In the joint project AlienScenarios, we quantitatively elucidate the range of plausible future invasion trajectories, provide crucially needed data for pro-active alien species management and policy, and explore options for arriving at preferred futures through the adaptation of existing policies. The project is funded by a joint call Belmont Forum and BiodivERsA
I am the Coordinating Lead Author (CLA) of the ongoing assessment of invasive alien species initiated by the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES) of the chapter on trends and status. My IPBES profile (in German) can be found here.
ResearchGate Profile (https://www.researchgate.net/profile/Hanno_Seebens)
Seebens, H., E. Briski, S. Ghabooli, T. Shiganova, H. J. MacIsaac, and B. Blasius (2019) Non-native species spread in a complex network: the interaction of global transport and local population dynamics determines invasion success. Proceedings of the Royal Society B 286(1901):20190036.
Seebens, H., T. M. Blackburn, E. E. Dyer, P. Genovesi, P. E. Hulme, J. M. Jeschke, S. Pagad, P. Pyšek, M. van Kleunen, M. Winter, M. Ansong, M. Arianoutsou, S. Bacher, B. Blasius, E. G. Brockerhoff, G. Brundu, C. Capinha, C. E. Causton, L. Celesti-Grapow, W. Dawson, S. Dullinger, E. P. Economo, N. Fuentes, B. Guénard, H. Jäger, J. Kartesz, M. Kenis, I. Kühn, B. Lenzner, A. M. Liebhold, A. Mosena, D. Moser, W. Nentwig, M. Nishino, D. Pearman, J. Pergl, W. Rabitsch, J. Rojas-Sandoval, A. Roques, S. Rorke, S. Rossinelli, H. E. Roy, R. Scalera, S. Schindler, K. Štajerová, B. Tokarska-Guzik, K. Walker, D. F. Ward, T. Yamanaka, and F. Essl. 2018. Global rise in emerging alien species results from increased accessibility of new source pools. Proceedings of the National Academy of Sciences 115(10) E2264-E2273. DOI: 10.1073/pnas.1719429115
Seebens, H., Blackburn, T.M., Dyer, E., Genovesi, P., Hulme, P.E., Jeschke, J.M., Pagad, S., Pyšek, P., Winter, M., Arianoutsou, M., Bacher, S., Blasius, B., Brundu, G., Capinha, C., Celesti-Grapow, L., Dawson, W., Dullinger, S., Fuentes, N., Jäger, H., Kartesz, J., Kenis, M., Kreft, H., Kühn, I., Lenzner, B., Liebhold, A., Mosena, A., Moser, D., Nishino, M., Pearman, D., Pergl, J., Rabitsch, W., Rojas-Sandoval, J., Roques, A., Rorke, S., Rossinelli, S., Roy, H.E., Scalera, R., Schindler, S., Štajerová, K., Tokarska-Guzik, B., Kleunen, M. van, Walker, K., Weigelt, P., Yamanaka, T. and Essl, F. (2017) No saturation in the accumulation of alien species worldwide. Nature Communications 8:14435, doi: 10.1038/ncomms14435.
Seebens, H., F. Essl and B. Blasius (2017) The intermediate distance hypothesis of biological invasions. Ecology Letters 20:158-165, doi: 10.1111/ele.12715
Seebens, H., N. Schwartz, P. J. Schupp and B. Blasius (2016) Predicting the spread of marine species introduced by global shipping. Proceedings of the National Academy of Sciences 113 (20):5646-5651
My main interests involve the response and feedback of the carbon cycle in the land vegetation to climate change, with a special focus on boreal and temperate forest ecosystems. I am particularly interested if increases in plant respiration and forest mortality due to rising temperatures and more frequent and severe climate extremes may outweigh gross productivity increases in the future. To address these research questions, the monitoring of vegetation characteristics and dynamics therein by remote sensing technologies will be of vital importance. I am using remote sensing-based information on the spatial distribution of forest carbon stocks (biomass) in synergy with field data in order to evaluate, calibrate and improve global vegetation models.
I am working towards identifying the drivers of changes in tree carbon use efficiency (CUE) in boreal and temperate forests. This work will be the basis for approaches to increase CUE to enhance wood productivity and carbon stocks under future climatic conditions. As a first step, I am currently collecting available measurements of tissue nitrogen concentrations in stems, roots, and leaves of common boreal and temperate tree species.
I am a convener of the EGU 2020 session BG3.15: Present and future global vegetation dynamics and carbon stocks from observations and models
Carbon stock distribution (biomass) in boreal and temperate forests (Thurner et al., 2014) https://www.bgc-jena.mpg.de/geodb/projects/Home.php
Sapwood biomass carbon in northern boreal and temperate forests (Thurner et al., in press) https://bolin.su.se/data/Thurner-2019
Convener of the EGU 2019 session BG2.12: Constraining present and future global vegetation dynamics and carbon stocks https://meetingorganizer.copernicus.org/EGU2019/session/32157
Since 01/2019 Postdoc at BiK-F
2016-2018 Postdoc at Stockholm University and the Bolin Centre for Climate Research
2011-2016 PhD student at MPI Biogeochemistry (2011-2014) and Stockholm University (2014-2016), thesis defended at Friedrich Schiller University Jena
2008-2011 M.Sc. Geoinformatics and Remote Sensing at FSU Jena
2005-2008 B.Sc. Geography at FSU Jena
Link to research gate
Link to google scholar
Fan, N., Koirala, S., Reichstein, M., Thurner, M., Avitabile, V., Santoro, M., Ahrens, B., Weber, U., Carvalhais, N. (in review): Apparent ecosystem carbon turnover time: uncertainties and robust features. Earth System Science Data Discussions, https://doi.org/10.5194/essd-2019-235
Dantas de Paula, M., Gómez Giménez, M., Niamir, A., Thurner, M., Hickler, T. (2020): Combining European Earth Observation products with Dynamic Global Vegetation Models for estimating Essential Biodiversity Variables. International Journal of Digital Earth, 13, 2, 262-277. https://doi.org/10.1080/17538947.2019.1597187
Thurner, M., Beer, C., Crowther, T., Falster, D., Manzoni, S., Prokushkin, A., Schulze, E.-D.(2019): Sapwood biomass carbon in northern boreal and temperate forests. Global Ecology and Biogeography, 28, 5, 640-660. https://doi.org/10.1111/geb.12883
Forkel, M., Drüke, M., Thurner, M., Dorigo, W., Schaphoff, S., Thonicke, K., von Bloh, W., Carvalhais, N. (2019): Constraining modelled global vegetation dynamics and carbon turnover using multiple satellite observations. Scientific Reports, 9, 18757. https://doi.org/10.1038/s41598-019-55187-7
Erb, K.-H., Kastner, T., Plutzar, C., Bais, A.L.S., Carvalhais, N., Fetzel, T., Gingrich, S., Haberl, H., Lauk, C., Niedertscheider, M., Pongratz, J., Thurner, M., Luyssaert, S. (2018): Unexpectedly large impact of forest management and grazing on global vegetation biomass. Nature, 553, 73-76. https://doi.org/10.1038/nature25138
Thurner, M., Beer, C., Ciais, P., Friend, A.D., Ito, A., Kleidon, A., Lomas, M.R., Quegan, S., Rademacher, T.T., Schaphoff, S., Tum, M., Wiltshire, A., Carvalhais, N. (2017): Evaluation of climate-related carbon turnover processes in global vegetation models for boreal and temperate forests. Global Change Biology, 23, 8, 3076-3091. https://doi.org/10.1111/gcb.13660
Thurner, M., Beer, C., Carvalhais, N., Forkel, M., Santoro, M., Tum, M., Schmullius, C. (2016): Large-scale variation in forest carbon turnover rate related to climate. Geophysical Research Letters, 43, 4576-4585. https://doi.org/10.1002/2016GL068794
Thurner, M., Beer, C., Santoro, M., Carvalhais, N., Wutzler, T., Schepaschenko, D., Shvidenko, A., Kompter, E., Ahrens, B., Levick, S.R., Schmullius, C. (2014): Carbon stock and density of northern boreal and temperate forests. Global Ecology and Biogeography, 23, 3, 297-310. https://doi.org/10.1111/geb.12125
Carvalhais, N., Forkel, M., Khomik, M., Bellarby, J., Jung, M., Migliavacca, M., Mu, M., Saatchi, S., Santoro, M., Thurner, M., Weber, U., Ahrens, B., Beer, C., Cescatti, A., Randerson, J.T., Reichstein, M. (2014): Global covariation of carbon turnover times with climate in terrestrial ecosystems. Nature, 514, 213-217. https://doi.org/10.1038/nature13731
Carbon stock distribution (biomass) in boreal and temperate forests (Thurner et al., 2014) https://www.bgc-jena.mpg.de/geodb/projects/Home.php
Sapwood biomass carbon in northern boreal and temperate forests (Thurner et al., 2019) https://bolin.su.se/data/thurner-2020
For my Ph. D. project, I am simulating population dynamics of large herbivores in the Late Pleistocene. Working with extinct megafauna species requires a strictly bottom-up approach: scaling up from physiological mechanisms to populations. The megafauna model is coupled with the dynamic global vegetation model LPJ-GUESS into a process-based representation of the long-extinct Mammoth Steppe. Complex models of ecosystems that have no modern analogue are subject to high uncertainty. My approach is therefore to make use of uncertainty for pointing towards new and concrete research directions. Having academic training in both ecology and computer science, I place a strong emphasis on high-quality software engineering, reproducibility, and Open Science best practices.
My main research interest is to understand how ecosystems around the world change due to global change, including natural and anthropogenic factors. I am interested in changes in land cover and land use, vegetation composition and diversity, carbon storage, fire regimes, and their interactions and impacts on climate, as well as the consequences thereof and their influence on society. Modelling and understanding global fire occurrence have been my main research interests over the last years. Fire is an important agent of ecosystem change in many regions but also poses major risks for society, including the direct loss of property and lives, poor air quality, and changes ecosystem structure and functioning, e.g. it reduces the forest cover and vegetation carbon storage. Models are an important tool in summarizing our current understanding and they offer the possibility to be one step ahead of what can be measured. Because of this, I believe that vegetation models will become increasingly important to support decision making in ecosystem management. Many of the processes included in vegetation models are not yet well understood or not well constrained. I therefore use approaches that let me integrate information from observations with process-based model simulations. The methods I apply range from model evaluation with simple descriptive statistics to machine learning algorithms and hybrid modelling. My goal with these data analyses is to understand how models can and need to be improved and to develop an understanding of the uncertainty in both models and observations.
Interactions between fire, vegetation, and climate (DFG own position)
Fire in the future: interactions with ecosystems and society (coordination and collaboration with KIT, TU Vienna, and BOKU Vienna)
FireMIP (website to be moved from KIT to Senckenberg soon)
Teckentrup, L., Harrison, S. P., Hantson, S., Heil, A., Melton, J. R., Forrest, M., Li, F., Yue, C., Arneth, A., Hickler, T., Sitch, S. and Lasslop, G.: Response of simulated burned area to historical changes in environmental and anthropogenic factors: a comparison of seven fire models, Biogeosciences, 16(19), 3883–3910, doi:10.5194/bg-16-3883-2019, 2019.
Lasslop, G., Coppola, A. I., Voulgarakis, A., Yue, C. and Veraverbeke, S.: Influence of Fire on the Carbon Cycle and Climate, Curr. Clim. Chang. Reports, 5(2), 112–123, doi:10.1007/s40641-019-00128-9, 2019.
Forkel, M., Andela, N., Harrison, S. P., Lasslop, G., van Marle, M., Chuvieco, E., Dorigo, W., Forrest, M., Hantson, S., Heil, A., Li, F., Melton, J., Sitch, S., Yue, C. and Arneth, A.: Emergent relationships with respect to burned area in global satellite observations and fire-enabled vegetation models, Biogeosciences, 16(1), 57–76, doi:10.5194/bg-16-57-2019, 2019.
Lasslop, G., Brovkin, V., Reick, C. H., Bathiany, S. and Kloster, S.: Multiple stable states of tree cover in a global land surface model due to a fire-vegetation feedback, Geophys. Res. Lett., 43(12), 6324–6331, doi:10.1002/2016GL069365, 2016.
Andela, N., Morton, D. C., Giglio, L., Chen, Y., van der Werf, G. R., Kasibhatla, P. S., DeFries, R. S., Collatz, G. J., Hantson, S., Kloster, S., Bachelet, D., Forrest, M., Lasslop, G., Li, F., Mangeon, S., Melton, J. R., Yue, C. and Randerson, J. T.: A human-driven decline in global burned area, Science (80-. )., 356(6345), 1356–1362, doi:10.1126/science.aal4108, 2017.
Hantson, S., Scheffer, M., Pueyo, S., Xu, C., Lasslop, G., Van Nes, E. H., Holmgren, M. and Mendelsohn, J.: Rare, Intense, Big fires dominate the global tropics under drier conditions, Sci. Rep., 7(1), doi:10.1038/s41598-017-14654-9, 2017.
Lasslop, G., Thonicke, K. and Kloster, S.: SPITFIRE within the MPI Earth system model: Model development and evaluation, J. Adv. Model. Earth Syst., 6(3), 740–755, 2014.
My research interests involve the field of climate-vegetation interactions and human influences. This matches well with the BMBF-funded SPACES project EMSAfrica (Ecosystem Management Support for Climate Change in Southern Africa). EMSAfrica focuses on the effects of natural disturbances, such as the impacts of land-use and climate change on the structure and functioning of South African terrestrial ecosystems. It also focuses on the production of information relevant to ecosystem management in the region. Within the scope of this project I am working with the dynamic vegetation models (DVMs) aDGVM and aDGVM2 with a focus on Southern African vegetation changes. By using DVMs, I would like to detect changes in ecosystems and identify areas that require special attention in ecosystem management. Thus, I can contribute to protecting and maintaining biodiversity in vulnerable ecosystems.
EMSAfrica – Ecosystem Management Support for Climate Change in Southern Africa
Kumar, D., Pfeiffer, M., Gaillard, C., Langan, L., Martens, C. and Scheiter, S.: Misinterpretation of Asian savannas as degraded forest can mislead management and conservation policy under climate change, Biological Conservation, 241, 108293, https://doi.org/10.1016/j.biocon.2019.108293, 2020.
Pfeiffer, M., Langan, L., Linstädter, A., Martens, C., Gaillard, C., Ruppert, J. C., Higgins, S. I., Mudongo, E. and Scheiter, S.: Grazing and aridity reduce perennial grass abundance in semi-arid rangelands – Insights from a trait-based dynamic vegetation model, Ecological Modelling, 395, 11–22, https://doi.org/10.1016/j.ecolmodel.2018.12.013, 2019.
Scheiter, S., Schulte, J., Pfeiffer, M., Martens, C., Erasmus, B. F. N. and Twine, W. C.: How Does Climate Change Influence the Economic Value of Ecosystem Services in Savanna Rangelands?, Ecological Economics, 157, 342–356, https://doi.org/10.1016/j.ecolecon.2018.11.015, 2019.
Gaillard, C., Langan, L., Pfeiffer, M., Kumar, D., Martens, C., Higgins, S. I., and Scheiter, S.: African shrub distribution emerges via a trade-off between height and sapwood conductivity, Journal of Biogeography, 45, 1–12, https://doi.org/10.1111/jbi.13447, 2018.
Scheiter, S., Gaillard, C., Martens, C., Erasmus, B. F. N., and Pfeiffer, M.: How vulnerable are ecosystems in the Limpopo province to climate change?, South African Journal of Botany, 116, 86–95, https://doi.org/10.1016/j.sajb.2018.02.394, 2018.