6 Acknowledgements

Toxicity testing with the collembolans Folsomia fimetaria and Folsomia candida and the results of a ringtest

The ringtest participants are truly acknowledged for contributing their results for free and Cheminova for providing dimethoate. Janeck Scott-Fordsmand initiated the introduction of springtails into the OECD TG programme and OECD national coordinator Henrik Tyle, DK-EPA, proposed the project for an OECD TG. The technical staff at the Soil Fauna laboratory, Karen Kjær Jacobsen, Zdenek Gavor and Elin Jørgensen performed most of the reported tests from NERI, I am grateful for their careful work with the tests and their culture handling since the very first test were done in 1991. Dr. Esko Martikainen, Finland, is acknowledged for his improvement of the F. fimetaria test protocol during his stay as a visiting scientist in 1994. The Danish EPA, Ministry of the Environment, and NordUTTE provided the financial support. Hans Løkke introduced collembolan laboratory testing to Danish ecotoxicology. Dr. Rick Scroggins, Environment Canada, is acknowledged for providing support for a previous review on F. fimetaria performance. Henrik Tyle, DK-EPA, and Jukka Ahtiainen, SYKE, provided valuable comments to the report.