Terrestrial Model Ecosystems

Terrestrial Model Ecosystems (TMEs)

Higher Tier Test System in Risk Assessment for the Soil Community

Terrestrial model ecosystems

Terrestrial model ecosystems (TMEs) are a useful test system to investigate the effects of pesticides on complex communities. Together with the Institute for Environmental Research (RWTH Aachen University) and Bayer AG, we have developed and subsequently tested TMEs  as an outdoor test system for soil communities. Now a practicable and optimised test system is ready to use for higher-tier risk assessment under GLP.

Test system and organism groups

Our TME facility has space for 70 individual TMEs, i.e. stainless steel cylinders with soil cores of 47 cm in diameter and 40 cm in height, which are pricked in the field. These are taken at an uncontaminated, species-rich meadow site and then brought to our TME facility. There, the soil cores are exposed to natural environmental conditions and remain for up to one year.

Ongoing method optimisation

Until now, there is no standard guidance available for conducting and evaluating TME studies. We are committed to ensuring high quality data and minimising errors and associated variability by using optimised sampling and counting techniques. In order to guarantee a high significance of the study results, we continuously scrutinise and improve the methodology used in sampling, counting and evaluation.

Implementation and evaluation from a single source

The high complexity of the studies requires a well thought-out concept from the planning of the design to the sampling and counting of the organisms to the statistical evaluation. We offer all work steps together with our cooperation partner.

Our TMEs have a diameter of

47

and have a height of

40

and

5

different animal groups can be examined (Collembola, Oribatida, Nematoda, Enchytraeidae, Lumbricidae)

Dr. Andreas Toschki

Phone: +49 241 – 8027600
E-Mail: toschki@gaiac-eco.de

Dr. Monika Hammers-Wirtz

Phone: +49 241 – 8027601
E-Mail: hammers-wirtz@gaiac-eco.de

Brochures

Flyer
Terrestrial Ecotoxicology

Taxonomic expertise

Good Laboratory Practice

(GLP)

References

Projects

2014-2017
Nanomobil - Synthetische Silber-Nanopartikel im System Boden-Grundwasser: Mobilität, Wirkungen auf die Lebensgemeinschaft und Wechselwirkung zwischen Hydro-, Pedo- und Biosphäre. Teilprojekt AP 2 Biosphäre | BMBF, FKZ 03X0151A
Project website
2010-2013
Bewertung des Risikos für Bodenorganismen unter realen Bedingungen: Erarbeitung einer nationalen Position für die Ausgestaltung untergesetzlicher Regelwerke der neuen EU-Pflanzenschutzmittelverordnung | UBA, FKZ 3710 67 410
Project report

Publications & Presentations

2020
van Gestel, C. A. M., Mommer, L., Montanarella, L., Pieper, S., Coulson, M., Toschki, A., Rutgers, M., Focks, Römbke, J. (2020): Soil biodiversity: state-of-the art and possible implementation in chemical risk assessment. Integrated Environmental Assessment and Management. doi: 10.1002/ieam.4371
Publication
2020
Toschki, A., Hammers-Wirtz, M., Hommen, U., Klein, M., Poßberg, C., Römbke, J., Roß-Nickoll, M., Schäffer, A., Scheffczyk, A., Schmidt, B., Scholz-Starke, B. (2020): Evaluation of the risk for soil organisms under real conditions: Development of a national position for amending downstream legislations of the new EU Plant Protection Products Regulation; Final Report, Project No. (FKZ) 3710 67 410, Report No. EF001129-ENG. Umweltbundesamt, TEXTE 201/2020, 302. ISSN: 1862-4804
2018
Hammers-Wirtz, M., Strauss, T., Toschki, A. (2018): Added value of community appro­a­ches in environmental risk assessment. Poster presentation, 28th SETAC-Europe Annual Meeting 13-17 May 2018. Rome, Italy.
Poster
2017
Hammers-Wirtz, M., Oellers, J., Fürste, A., Miller, S., Peeters, S., Willius, N., Toschki, A. (2017): Investigating effects of silver nanoparticles on the soil community – An outdoor TME study. Poster presentation, 27th SETAC- Europe Annual Meeting, 07-11 May 2017, Brussels, Belgium.
2015
Hammers-Wirtz, M., Toschki, A. (2015): Investigating effects of silver nanoparticles on the soil community – Concept of an outdoor TME study. Poster presentation, SETAC Europe 25th Annual Meeting, Barcelona, Spain.
2011
Scholz-Starke, B., Nikolakis, A., Leicher, T., Lechelt-Kunze, C., Heimbach, F., Theißen, B., Toschki, A., Ratte, H.T., Schäffer, A., Roß-Nickoll, M. (2011): Outdoor Terrestrial Model Ecosystems are suitable to detect pesticide effects on soil fauna - Design and method development. Ecotoxicology 20:1932-1948.
Publication
2011
Toschki, A., Hammers-Wirtz, M., Hoelscher, C., Theißen, B., Roß-Nickoll, M. (2011): Requirements for Terrestrial Model Ecosystems (TME) in Environmental Risk Assessment - influence of coring sites and management on microarthropod communities. Poster presentation, 21th SETAC- Europe Annual Meeting 15-19 May 2011, Milano, Italy.
2010
Theissen, B., Scholz-Starke, B., Hammers-Wirtz, M., Kölzer, U., Leicher, T., Schäffer, A., Roß-Nickoll, M. (2010): Does 'sequentially sampling' influence population dynamics of soil mesofauna in TME? An experiment giving answers to questions posed on the PERAS workshop. Poster SETAC Europe 20th Annual Meeting, 23-27 May 2010, Seville, Spain.
Poster
2007
Scholz-Starke, B., Theißen, B., Toschki, A., Ratte, H.T., Schäffer, A., Heimbach, F., Nikolakis A., Roß-Nickoll, M. (2007): Basic Prerequisites Of A Semi-Field Terrestrial Model Ecosystem (TME): Ecology, Variability, Technical Set-Up & Resulting Test Strategies. Poster SETAC Europe 17th Annual meeting 20-24 May 2007, Porto, Portugal.
2006
Roß-Nickoll M., Keppler J., Lechelt-Kunze C., Heimbach F., Nikolakis A., Ratte H.-T., Schäffer A., Theissen B., Toschki A. & B. Scholz-Starke (Presenter) (2006): Outdoor Terrestrial Model Ecosystems: Study Design & Evaluation Approaches. Poster SETAC Europe 16th Annual Meeting 7-11 May 2006, The Hague, The Netherlands.
Poster
2005
Scholz-Starke, B., Heimbachm F., Keppler, J., Lechelt-Kunze, C., Lennartz, G., Ratte, H.T., Theißen, B., Toschki, A., Schäffer, A., Roß-Nickoll, M. (2005): Terrestrial Modell Ecosystems (to assess changes of micro-arthropods community structure). Poster SETAC Europe 15th Annual meeting, Lille, 2005.
Poster
Contact

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