Research & Projects

 
 
  Research

       I lead a research team around the topics of monitoring and modelling pattern and dynamics at the landscape scale, mainly of the European Alps. Funding somes primarily from EU- and National Science Foundation grants, from SAEFL and WSL, and occasionally from US-NSF and USDA Forest Service. We use mostly GIS and remote sensing, as well as our own programs combined with mathematical and statistical data analyses. Personally, I am involved in a series of ongoing projects. My own research has four center points: 1) GIS based modelling of habitat distribution and of biophysical properties at the landscape scale; 2) Scaling of biogeochemistry models from stands to landscapes; 3) remote sensing based monitoring and modelling of landscape pattern and its change over time; and 4) development and improvements of gap dynamic models for improved simulation of forest dynamics.


 
 
  Research of my PhD and Master students

Eliane Meier: Improved modelling and niche stability . This PhD is framed in and funded by the EU-FP6 IP ECOCHANGE. It aims at developing improved projections of climate and land use change impacts on species, biodiversity and ecosystems.. Funding: EU-FP6 IP ECOCHANGE Duration:1/2008 - 6/2011.


 
 
  Postdocs and visiting scientists

Dr. Jed O. Kaplan: Was employed as postdoctoral research scientist in biogeochemical modelling of historical processes for 1.5 years. Funding: EU-FP6 MILLENIUM. Duration: 9/2006 - 3/2008.

Dr. Thomas C. Edwards Utah State University: Has spent 8 months of a sabbatical stay in the lab. Funding: USGS and USU. Duration: 1/2007 - 8/2007.

Dr. Elke Hodson: Is employed as postdoctoral research scientist for linking land use (change) and emissions of greenhouse gases. Funding: ETH CCES MAIOLICA. Duration: 8/2008 - ongoing.

Dr. Achilleas Psomas: Is employed as postdoctoral research scientist for scaling the retrieval of canopy biochemistry from plots to landscape and for ecological remote sensing applications. Funding: ETHdomain/SUK HyperSwissNet. Duration: 1/2009 - 4/2011.

Dr. Peter B. Pearman: Is employed as research scientist in predictive species and biodiversity modelling. Funding: EU-FP6 EcoChange. Duration: 1/2008 - ongoing.

Dr. Ben Poulter: Will soon start his Marie Curie funded postdoctoral research project on "Advancing dynamic vegetation modelling for mountain systems vulnearble to climate and land-use change". Funding: EU-FP7 MTVEGMOD. Duration: 7/2009 - 6/2011.



 
 
  Other PhD students I (co-)supervise (committee member)

PhD - Wüest, Rafael: Ecological Niche Evolution in Restionaceae and Danthonioidae. This PhD project is supervised by Prof. Peter Linder, Botanical Institute, Univerrsity of Zürich. It aims at analyzing the patterns of niche evolution in clades that have spread across continents. Funding: SNF and other sources. Duration: 8/2008 - 7/2011.



 
 
  Former PhD and masters students under my supervision

PhD - Gehrig-Fasel, Jacqueline: Scenario modeling of Alpine tree lines in Switzerland:sensitivity to climate, land-use, and natural hazards. This PhD has been initiated by the Department of Landscape Inventories. It aims at developing a predictive model of timberline for the Swiss Alps. Scenario simulations will be performed to evaluate the potential for carbon sinks at the upper timberline. Funding: WSL. Duration: 1/2003 - 6/2006.

PhD - Gellrich, Mario: Forest Expansion in the Swiss Alps: a quantitative analysis with an emphasis on structural change in agriculture. This PhD is part of the project WaSAlp, which is embedded in the NRP48 ALPSCAPE. It aims at developing a spatially explicit, predictive model that explains the key variables for biophysical and human-induced landscape change. Using scenario simulations, we will study the effects of climate and socio-economic drivers upon the potential landscape dynamics in the near future. Although linked with two other departments, this PhD is associated with my research team for statistical model development and GIS scenarios. Funding: Swiss National Science Foundation. Duration: 7/2002 - 6/2005.

PhD - Leyk, Stefan: Uncertainty investigation in historical maps for retrospective landscape assessments. This PhD has been initiated by the Department of Landscape Inventories. It aims at using geographic data from historical (Siegried) maps in order to analyze different sources of uncertainty that may occur depending on subsequent target applications. In a first step, an automated algorithm is developed to map forest area from scanned Siegfried maps. Uncertainty analysis for mapping and retrieveing forests is performed in order allow the quantification of forest area change as indicated by these old historical maps.Funding: WSL. Duration: 7/2002 - 6/2005.

PhD - Mathys, Lukas: A discrete forest in a fuzzy landscape?. This PhD is part of the project LI (Landscape Inventory), which is a new initiative at WSL extending the forest inventory activities to the whole landscape. The PhD project specifically addresses the high to medium spatial resolution for deriving continuous landscape parameters using LIDAR and Landsat Remote Sensing, and high resolution RGB imagery. A suite of scenario simulations and analyses are aimed at evaluating the applicability of these methods for monitoring a range of landscape characteristics.. Funding: WSL, Department Landscape Inventories. Duration: 1/2004 - 12/2007.

PhD - Psomas, Achilleas: Hyperspectral remote sensing for ecological analyses of grassland ecosystems - spectral separability and derivation of NPP-related biophysical and biochemical parameters.. This PhD is linked to the TWW (National mapping of dry meadows and pastures) project, funded by SAEFL. It aims at developing a method for monitoring the state and trajectory of landscape elements over time evaluated against the historical range of variability of this same landscape element. The latter allows to assess the impact of climate on the landscape variability and on the bounds of this variability. Funding: SAEFL & WSL. Duration: 3/2004 - 4/2008.

PhD - Rickebusch, Sophie: Modelling tree population dynamics at the Alpine and Boreal tree-line ecotones in response to climate and land-use change. This PhD is embedded in the EU project PINE. It aims at developing a dynamic landscape model for timberlines based on the existing gap model TreeMig. Scenario simulations are part of the model application for solving PINE project relevant questions. Funding: through BBW as part of the co-operative agreement with EU - FP5. Duration: 12/2002 - 11/2005.

PhD - Rutherford, Gillian: The use of land-use statistics to investigate large-scale successional processes. This PhD is part of the project WaSAlp, which is embedded in the NRP48 ALPSCAPE. It aims at developing a nation-wide and spatially explicit landscape transition model. Using scenario simulations, we will study the effects of climate and socio-economic drivers upon the potential landscape dynamics in the near future. Although linked with two other departments, this PhD is associated with my research team for statistical model development and GIS scenarios. Funding: Swiss National Science Foundation. Duration: 8/2002 - 3/2006.

PhD - Steinmann, Katharina: Testing basic assumptions of species richness hypotheses using plant species distribution data. This PhD is embedded in the EU project IntraBioDiv. It aims at analyzing diversity pattern at various organizational levels (genes, species, habitats) in the European Alps as well as in the Carpathians. The project aims at generating explanatory variables (climate- and topography-related) and at calibrating models for explaining diversity pattern at various scales.Funding: through BBW as part of the co-operative agreement with EU - FP6. Duration: 2/2004 - 4/2008.

MSc - Wüest, Rafael: Investigating Niche Parameter Stability in Carex - A case study in Switzerland. This Master project is supervised together with Prof. Peter Linder, Botanical Institute, Univerrsity of Zürich. It aims at analyzing to what degree the stress tolerance of individual niche factors (drought, shade, frost, etc.) were stable during the evolutionary development of the genus Carex. Funding: none. Duration: 2/2007 - 7/2008.


 
  PhD students where I was expert or committee member

  • 2003: Kimberly P. van Niel. Geographical Issues in Predictive Vegetation Modelling: Error and Uncertainty in GIS Data, Methods and Models. Australian National University, Australia.
  • 2004: Nicolas Wyler. Analyse du paysage et richesse spécifique: Le cas de la flore du canton de Genève (Suisse). University of Geneva.
  • 2005: Stefan Leyk. Computing the Past - Utilizing Historical Data Sources for Map-Based Retrospective Landscape Research. Dept. Geography, University of Zürich.
  • 2006: Gillian N. Rutherford. The use of land-use statistics to investigate large-scale successional processes. Swiss Federal Institute of Technology Zürich.
  • 2006: Catherine Cunningham. Growth of Norway spruce saplings: Exploring the influence of spring conditions through observation, experiment, and model simulation. Swiss Federal Institute of Technology Zürich.
  • 2006: Sophie Rickebusch. Modelling tree population dynamics at the Alpine and Boreal tree-line ecotones in response to climate and land-use change. University of Lausanne.
  • 2007: Jaqueline Gehrig-Fasel. Treeline and climate change: analyzing and modeling patterns and shifts in the Swiss Alps. University of Lausanne.
  • 2007: Lukas Mathys. A discrete Forest in a continuous Landscape - Investigating Interactions between Natural Resource Management and Sustainable Development. University of Lausanne.
  • 2008: Silvia Huber. Estimation of Ecologically Relevant Land Cover Variables from Imaging Spectroscopy. University of Zürich.
  • 2008: Achilleas Psomas. Hyperspectral remote sensing for ecological analyses of grassland ecosystems - spectral separability and derivation of NPP-related biophysical and biochemical parameters. University of Zürich.
  • 2008: Olivier Broennimann. Niche-based models in biogeography & conservation biology: how far can we go to assess the impacts of global change? University of Lausanne.
  • 2008: Katharina Steinmann. Testing basic assumptions of species richness hypotheses using plant species distribution data. University of Zürich.
  • 2009: Vegar Bakkestuen. GIS as a tool for studying temporal and spatial patterns in Norwegian ecosystems across disciplines and scales. University of Oslo, Norway.
  • 2009: Cécile Albert. Variabilité fonctionelle intraspécifique: quantifcation in situ et implications dans une vallée alpine. University of Grenoble, France.
  • 2010: Juliano Sarmento Cabral. Demographic processes determining the range dynamics of plant species, and their consequences for biodiversity maintenance in the face of environmental change. University of Potsdam, Germany.
  • 2010: Jan Hanspach. Assessing the influence of global change on plant species distribution using statistical models. University of Halle, Germany.
  • 2010: Signe Normand. Macroecological Perspectives on European Plant species' Ranges: Past - Present - Future University of Aarhus, Denmark.
  • 2011: Ramona Maggini. Species distribution models for conservation-oriented studies in Switzerland: filling data and tool gaps. University of Lausanne, Switzerland.
  • 2011: Eliane S Meier. Modelling spatial dynamics of plant distributions - Implementation of biotic interactions and migration improves large-scale projections of species distributions during climate and land-use change. Swiss Federal Institute of Technology Zürich, Switzerland.

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      Diploma students where I was expert or committee member

  • 2004: Roxanne Milleret. Impact of climate change on the distribution of plant species. University of Lausanne, Switzerland.
  • 2004: Lorenzo de Stefani. Modéliser la distribution spatiale de la richesse spécifique et des communautés végétales dans les Préalpes vaudoises. University of Lausanne, Switzerland.
  • 2004: Robin Engler. MIGRATOR: Coupling GLM and Cellular Automata in a dynamic model to simulate plant migration and distribution under climatic change. University of Lausanne, Switzerland.
  • 2005: Grégoire Vuissoz. Introducing process-based disturbance variables in predictive models of plant distribution. University of Lausanne, Switzerland.
  • 2006: Lukas Rohrer. Mortalität von Einzelbäumen auf Lothar-Sturmflächen und in den umgebenden Bestandesrändern: Beobachtete Raten und mögliche EInflussfaktoren auf sechs Flächen des schweizerischen Mittellands. Swiss Federal Institute of Technology Zürich, Switzerland.
  • 2006: Florian Dessimoz. Invasive potential of the Giant Hogweed (Heracleum mantegazzianum) in the Western Swiss Alps and implications for management. University of Lausanne, Switzerland.
  • 2006: Erika Franc. Model-based stratified sampling of rare species. University of Lausanne, Switzerland.
  • 2007: Marietta Wilhelm. How much can we predict alpine plant species distribution at a very high resolution? University of Lausanne, Switzerland.
  • 2008: Rafael Wüest. Investigating niche parameter stability in Carex - a case study in Switzerland. University of Zürich, Switzerland.
  • 2010: Reimo Lieske. Modelling the potential spread of invasive plants in Kt. Zurich. University of Salzburg, Austria.

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      Ongoing projects

    MANFRED - Management strategies to adapt Alpine Space forests to climate change risks. Funding: EU/Interreg - Alpine Space
    MOTIVE - Models for Adaptive Forest Management. Funding: EU-FP7
    MAIOLICA - Modelling and experiments on land-surface interactions with atmospheric chemistry and climate. Funding: ETH-Domain
    HyperSwissNet - A research and teaching network on hyperspectral remote sensing in Switzerland. Funding: SUK & ETH-Domain.
    ECOCHANGE - Challenges in assessing and forecasting biodiversity and ecosystem changes in Europe. Funding: EU-FP6.

     
     
      Recently finished projects

    IntraBioDiv - Tracking surrogates for intraspecific biodiversity: towards efficient selection strategies for the conservation of natural genetic resources using comparative mapping and modelling approaches
    MfM-U/WSL - Monitoring flankierende Massnahmen-Umwelt: Der Beitrag der WSL zu den Bereichen Natur, Umwelt und gesellschaft
    PINE - Predicting impacts on natural ecotones
    Biome-BGC - Scaling carbon fluxes from stands to landscapes: Calibrating and testing Biome-BGC along multiple environmental gradients.
    Landspot - Landscape potential for animal species survival, colonization and dispersal: a spatial simulation study
    LAASIM - Predicting the distribution and dynamics of forest vegetation in the central Rocky Mountains: leaf area, sapwood, and site water balance at the tree, stand, and landscape level
    Developing a physiologically mechanistic tree migration model and simulating Holocene spread of forest trees
    Biophysical modeling for remote sensing applications and land-change detection
    Biophysical modeling of Northern Californian National Forests [Modoc/Lassen/Plumas]
    Calibrate real tree species for the LAASIM-model
    Biophysical modelling of the Shoshone National Forest
    Spatial interpolation of soil properties in the Omo National Park, Ethiopia
    Developing a spatially explicit and climatically sensitive model for predicting the spatial distribution of Swiss Alpine plants and plant communities

     
     
      Programs and routines I make available

    Tools for analyzing, summarizing, and mapping of biophysical variables

     
     
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