Experimentelle Ökologie

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Experimentelle Ökologie

Workshop 2013

“Moving from the lab to the field: putting ecology and ecophysiology in a new framework”

18-20 March 2013 at Plant Sciences (IBG-2) Forschungszentrum Jülich

In the field of plant science much of our understanding of plant growth, development and metabolism has been derived from studying model plants grown under controlled conditions. In the field of ecology we often find a combination of studies performed under field conditions with smaller more mechanistic studies under controlled greenhouse or climate-chamber conditions. In a world experiencing major global change, we need to better integrate our understanding of plant performance across scales, including knowing to what extent results obtained under controlled conditions are compatible with those obtained in the field. Very few studies have systematically studied how plant species respond to both abiotic and biotic factors both under controlled and field conditions since this requires comparable study units under both conditions. Nevertheless, given the considerable body of knowledge we are accumulating in both field and controlled conditions both in ecology and ecophysiology we consider the moment opportune to move towards providing an overall comparative framework for being better able to compare and assess the relative outcomes of studies under controlled and field conditions. This meeting of the Working Group Experimental Ecology of the GfÖ (German Society of Ecology) aims to provide the setting for discussion of how such a framework could develop. The Plant Sciences Institute (IBG-2) of the Forschungszentrum Jülich with its state-of-the-art plant phenotyping facilities both under controlled and increasingly under field conditions should provide an ideal background for such a discussion.


The meeting will take place in the Plant Sciences (IBG-2) Institute in theForschungszentrum Jülich, and will run from Monday early afternoon on the 18th March 2013, to Wednesday early afternoon on the 20th. There will be a few keynotes talks as well as standard talks, and a poster session. We welcome both senior and younger scientists. We plan to include a meeting session and field trip to the University of Bonn Kleinaltendorf site on Wednesday morning, such that participants can either travel back home from Bonn or will be transported back to Jülich by bus.



Monday 18th March

13.00-14.00 Registration

14.00-14.15  Welcome and Introduction  (Vicky Temperton, Arnd Kuhn, Manfred Küppers)

Session 1

Plants in pots, rhizotrons, microcosms and the field - Part I

14.15-14.45  Vicky Temperton et al. “The challenge of linking controlled experiments with field experiments” (25 min +5)

14.45-15.05  Maik Bartelheimer et al. “When neighbour roots cause biotic stress: A gene expression study between two species” (15 min +5)

15.05-15.25  Sara Palacio et al. “Plant nutrient and water cycling in semi-arid gypsum ecosystems” 

15.25-15.45 Gert Dudel “The multiple beneficial role of silica in plants (grasses)” 

15.45-16.15  Coffee break

Session 2

Plants in pots, rhizotrons, microcosms and the field - Part II

16.15-16.45  Günter Hoch et al.  “In situ and greenhouse tests of the low temperature limit for growth in deciduous, broad-leaved tree species” (25+5min)

16.45-17.05   Armando Lenz et al.  “Freezing resistance and phenology in spring co-control deciduous tree species low temperature range limits” (15+5min)

17.05-17.25 Carsten Brackhage “Influence of water logged soil conditions and nutrient availability on transfer and speciation of As in grasses (crop species)” 

17.25-17.45 Dagmar von Dusschoten et al. “MRI of plant roots grown in containers: thinking outside the pot”


18.30  BUS transfer to Aachen, IBIS-Hotel “Marschiertor” (Friedland Strasse 6-8)

20.00  Dinner in Aachen with discussion on the next steps of AKOE

Location:  Restaurant „La Table“, it belongs to the IBIS-HOTEL

Tuesday 19th March 

08.30 (sharp, be on time) Bus transfer from IBIS-Hotel “Marschiertor” to Jülich Research Center

Session 3

Plants in pots, rhizotrons, microcosms and the field - Part III

09.30-10.00 Hendrik Poorter “In which cases and to what extent do measurements in plant growth chambers tell us something about the reality outside in the field?” (25 +5min)  

10.00-10.20 Karin Pirhofer-Walzl et al. “Plant-microorganism interactions in agricultural landscape laboratories” (15+5min)

10.20-10.40 Dario Mantovani et al. “How is the water use and growth of black locust?  - from lysimeter experiments to the field“

Session 4

The grand challenge – the rhizosphere and roots under controlled and field conditions 

13.00-13.30 Robert Koller et al. “Soil protozoa and plant growth: scientific challenges in lab and field experiments” (25 +5min) 

13.30-13.50 Stefan Geissen & Michael Bonkowski “Identification and functional roles of amoeboid protozoa in soil” (15+5min)

13.50-14.10 Tobias Wojciechowski  “Roots in gel chambers, mesocosms, and in the field – a different story”  

14.10-14.30 Stephan Blossfeld et al. “Quantitative imaging of rhizosphere pH and CO2 dynamics with planar optodes” 

14.30-15.00 Coffee break

Session 5

Physiological Aspects of comparing the lab to the field

15.00-15.20 Jan-Erik Dickopp “How microclimate governs rhizome aeration in the emergent hydrophyte Typha latifolia” 

15.20-15.40 Julia Henzler et al. “Leaf Gas Exchange and Seasonal Carbon Balance of Woody Plants in Central Alaska and in Comparison to Central Europe” 

15.40-16.00 Frauke Peschek et al. “Effects of solar UVB on DNA (CPDs) and photosynthesis (Fv/Fm) in the green macroalga Ulva species” 

16.05-17.00  General Discussion 

17.00-18.15  Tour of plant phenotyping facilities at IBG-2

18.30  Bus transfer to Aachen to Restaurant

Dinner in Restaurant called “Kazan”, Annastrasse 26, Aachen as of 19.30 in big group (a la carte adapted for the group, self-paying)

Wednesday 20th March 

08.30  Bus transfer from IBIS-HOTEL“Marschiertor” to Campus “Klein-Altendorf” near Bonn 

Session 6

Building up a crop phenotyping chain in Klein-Altendorf – from single plant to field stock

10.00-10.20 Ralf Pude (Uni Bonn) „Concept and further development of the site Klein-Altendorf”

10.20-10.40 Tim Malolepszy “PhenoCrops – Building of a phenotyping chain in Klein-Altendorf – from single plant to field stock“

10.40-11.00 Mark Müller-Linow & Uwe Rascher „The leaf angle distribution of 3-d canopies of Arabidopsis and Beta vulgaris”

11.00-11.30 Overall discussion and outcome of the meeting 

11.30-13.00  Tour of site 

13.00 – 13.30 LUNCH (we will provide home-made sandwiches)

13.30  End of Meeting