¨       Dr. Bart Kruijt (Alterra, Wageningen, NL): Carbon fluxes of tropical rainforest in Amazonia - 31 March 2004

¨       Dr. David Sampson (Virginia Polytech. University, Blacksburg, USA): Modelling forest's carbon budget - September 2004

¨       Dr. Markus Löw (Technische Universität München, Lehrstuhl für Ökophysiologie der Pflanzen):   Responses of adult beech to free air ozone fumigation: a concept for diagnosis - February 2005

¨       Petra Tschakert (AESEDA,   Pennsylvania   State   University   (USA):   Clean Development Mechanisms: Who pays   the bill for our ecological   commitments? - November 2005

¨       Dr. Costanza Zavalloni (Michigan   State   University,USA):   The  Pileus  Project: impacts of climate variability and change on sour cherry production in the Great Lakes Region - December 2005

¨       Dr. Stanislaw Cieslik (JRC, Ispra, Italy): How micrometeorology can be useful to plant physiologists - October 2006

¨       Prof. Marcel Hoosbeek (Universiteit Wageningen, NL): Effects of elevated atmospheric CO2 and N-fertilization on soil organic carbon content and stability under a short rotation poplar plantation - December 2006  

¨       Prof. Dr. Hans de Kroon (Radboud Universiteit Nijmegen, NL): Roots at large: the far-reaching consequences of plant plasticity underground -February 2007

¨       Dr. Jan Cermak (Mendel University of Agriculture and Forestry, Brno, Czech Republic): Tree water relations and architecture - February 2007

¨       Dr. Nadezda Nadezhdina (Mendel University of Agriculture and Forestry, Brno, Czech Republic): Applications of the Heat Field Deformation method for measurements of sap flow and tree functioning - February 2007

¨       Dr. Vladimir Ossipov (University of Turku, Finland): Ecological metabolomics in plants - April 2007

¨       Dr. Nadezda Nadezhdina (Mendel University of Agriculture and Forestry, Brno, Czech Republic): Sap Flow Index and its potential use in tree water relation studies - February 2009

¨       Dr. Donatella Zona (University of California, Davis, USA): Patterns of and Controls on Methane and Carbon Dioxide Fluxes on the Arctic Coastal Plain, Alaska - April 2009

¨       Prof. John S. King (North Carolina State University, Raleigh, USA): Research on the use of  Populus  and other tree species for bioenergy in the southeastern USA - April 2009

¨       Prof. Constantin S. Doukas (Nationaal Natuurhistorisch Museaums Naturalis, Leiden, NL): Paleontology, a quest of time (or: How can Paleontologists help Biologists ?) - May 2009

¨       Dr. Chris Flechard (INRA-Rennes, France): Atmospheric pollutant deposition to European ecosystems: monitoring and modeling within the NitroEurope project - June 2009   

¨       Prof. Nathan Phillips (Boston University, USA): Phenology of leaves and ontogeny of trees: an under-explored ecophysiological research intersection -August 2009

¨       Alexandros Nikolian, M.Sc. (University of Reading, UK): Energy production from biomass Short Coppice Willow (Salix): Energy and carbon balance - October 2009    

¨       Dr. Jorge Curiel Yuste (CREAF, Universidad Autonomia de Barcelona, Spain): The role of microbial community diversity on SOM decomposition and its response to climate at two Mediterranean ecosystems - November 2009

¨       Prof. Federico Magnani (Universita di Bologna, Italy): Nitrogen deposition effects on fertility and C sequestration by extra-tropical forests - May 2010

¨       Prof. Paul Stoy (Montana State University, USA): The carbon cycle across time and space in arctic Fennoscandia, what we know and what we need to know - June 2010

¨       Dr. Terenzio Zenone (University of Toledo, USA): Short Rotation Forestry for bioenergy production: linking ecological, agricultural and commercial constrains - January 2011

¨       Prof. Jan Cermak (Mendel University of Agriculture and Forestry, Brno, Czech Republic): Methods for sap flow measurements in trees - February 2011

¨       Prof. Nadezda Nadezhdina (Mendel University of Agriculture and Forestry, Brno, Czech Republic): Sap flow methods applicable for measurements in small trees - February 2011  

¨       M.Sc. Milan Fischer (Mendel University of Brno, Czech Republic): The link between growth and water consumption in short rotation poplar coppice -February 2011  

¨       Dr. Johan Uddling (University of Gothenburg, Sweden): Tree water use under rising CO₂   and O₃   - April 2011

¨       Dr. Magdy El Bana (King Saud University, Saudi Arabia): The contribution of climate and oil wealth to land degradation and biodiversity loss in the Arabian Gulf Countries; The case of Saudi Arabia - July 2011

¨       Dr. Jean-Christophe Domec (Bordeaux SciencesAgro (ENITA), Grance): Understanding the resistances that control the movement of water through the soil-plant system, with special consideration of the root system: seeking an ecosystem perspective - July 2011 

¨       Dr. Lisa Wingate (INRA Bordeaux, Unité Ephyse, France): Linking water and carbon cycles with the   δ¹⁸O of CO₂ fluxes - September 2011

¨       Dr. Silvano Fares (Research Centre for the Soil-Plant System, Italy): Tropospheric ozone removal from crop and forest species: dependences on plant physiology and on the emission of isoprenoids - October 2011

¨       Dr. Nicolas Marron (INRA Nancy, France): Optimization of wood production in bio-energy plantations - November 2011

¨       Prof. Steven Van Passel (Research Group of Environmental Economics, UHasselt, Belgium): Environmental Economics@ UHasselt - December 2011

¨       Dr. Nele Witters ( Research Group of Environmental Economics, UHasselt, Belgium): Phytoremediation: a sustainable marginal land management 
option - December 2011

¨       Dr. Eszter Ruprecht (Department of Taxonomy and Ecology, Babes-Bolyai University, Romania): Invasibility of grasslands by non-native plant species: the effect of changes in environmental conditions - December 2011

¨       Dr. Eric Casella (Forestry Commission, Forest Research, UK): Forest canopy gap fraction from terrestrial laser scanning: a case study with a 670 nm wavelenght laser beam - February 2012

¨       Assoc. Prof. Dr. Georg Wohlfahrt (Institut für Ökologie, Universität Innsbruck, Austria): Trace gas fluxes from/to mountain grasslands - March 2012 

¨       Ricardo Teixeira (Bluehorse Associates, a company developing Life Cycle Assessment tools): The business of LCA: How private companies are adopting life cycle thinking - May 2012

¨      Dr. Carlo Calfapietra (Institute of Agro-Environmental & Forest Biology (IBAF), Italy): Interactions between biogenic volatile organic compounds (BVOC) emitted by plants and ozone - June 2012 

¨       Emanuele Pallozzi (Institute of Agroenvironmental and Forest Biology, CNR, Italy): The effect of UV-A and UV-B radiation on plants' VOC emissions - 27 July 2012

¨    Dr. Carolyn-Monika Görres (graduate landscape ecologist, Germany): Net ecosystem exchange of CO₂ and microbial CH₄ dynamics in temperate grasslands on peat - 21 September 2012

¨    Bishu Agarwal (Institute of Ion Physics and Applied Physics, University of Innsbruck, Austria): Analytical detection and fragmentation pattern study of illicit substances and environmental pollutants using proton Transfer Reaction Time-of-Flight Mass Spectrometry (PTR-TOF-MS) - 24 October 2012

¨    Ing. Julian Carbonell (De Smet Engineers & Contractors, Belgium): Investment & production costs for bioethanol per feedstock - 25 October 2012

¨    Dr. Nicola Arriga (Forest Ecology Laboratory, DIBAF, Italy): Micrometeorology and ecological measurements: present and future challenges - November 2012

¨     Prof. dr. Andrew Kowalski (Department of Applied Physics, Spain): Dynamics and abiotic drivers of underground CO₂ in Mediterranean ecosystems - November 2012

¨     Simone Sabbatini (University of Tuscia, Italy): Greenhouse gases and energy crops: Land Use Change from traditional cultivations to Short Rotation Coppice of Poplar in central Italy - January 2013

¨     Dr. Gina Mills (Centre for Ecology & Hydrology, Wales, UK): Current and future threats to vegetation from ozone pollution - February 2013

¨     Prof. dr. Bjarni Sigurdsson (Agricultural University of Iceland): Effects of soil warming on ecosystem processes in Iceland - February 2013

¨    Dr. An De Schryver (project manager at Quantis Intl., Switzerland): Life Cycle Assessment: its modeling principles and need for Land Use Change and biodiversity data - March 2013

¨    Prof. Francesca M. Cotrufo (Natural Resource Ecology Lab, Colorado State University, USA): From plant litter inputs to soil organic matter formation: through the eyes of isotopes - April 2013

¨    Dr. Alexander Ac (Brno, Czech Republic): From remote sensing to energy plantations in a changing environment - April 2013

¨    Dr. Will Cornwell (Systems Ecology Group, Vrije Universiteit Amsterdam, Netherlands): Plant trait effects on element cycling: the importance of feedbacks - 17 May 2013