09/1990 – 02/1998 Biology, Master Degree at University of Bielefeld
02/1994 – 02/1995 Stage at Universidad de Concepción, Chile. Master Programm in Zoology.
11/2000 – 12/2004 PhD student at State Institute of Apiculture, University of Hohenheim ( Supervisor: Dr. P. Rosenkranz). Thesis on fertility regulation of Varroa destructor.
06/1998 – 12/1999 Scientific assistant at the State Institute of Apiculture Hohenheim. Project on the bee fauna of the Botanical Gardens in Hohenheim and Mössingen.
11/1998 – 03/1999 Research stage in Chiang Mai, Thailand. Reproductive behaviour of Varroa destructor on its original host Apis cerana (DAAD grant)
03/2000 – 05/2000 Second research stage in Chiang Mai, Thailand. Granted by the Institute for Tropics, University of Hohenheim.
03/1999 – 03/2001 Collaboration at a state project (Ministry of Agriculture Baden-Württemberg) “Varroa Reinvasion”
03/2001 – 02/2004 Researcher at State Institute of Apiculture Hohenheim. Project on “Fertility Regulation of Varroa destructor” (German Research Foundation)
11/2001 – 12/2001 Research Stage in Ribeirão Preto, Brasilien
03/2004 – 11/2007 Researcher at Bee Institute Kirchhain, Coordination of R&D Project “Selection of varroa-tolerant bees” (Federal Ministry of Agriculture)
03/2008-12/2009 Freelance Activity, Consulting and Training in Apiculture, Consulting of agrochemical Industry in Bee Issues
01/2010-01/2011 Study Director at Rifcon GmbH
02/2011-12/2012 Study Director at Ibacon GmbH
Since 01/2013 Freelancer, BeeSafe (www.bee-safe.eu)