- until 2009 Director of Rotterdam Zoo
'Some initiatives can only be supported completely.
For me ReHerp is in that catagory'
- until 2014 head of the veterinary department of the Rotterdam Zoo
- Since 2014 advisor of the Rotterdam Zoo and veterinary advisor of the EAZA studbook-breeding program for the Komodo dragon
- Information specialist- former secretary of Lacerta and former chairman of the Dutch Iguana Specialist Group
- independent advisor ESiLi Consultancy as an amphibian specialist.
(Info will be updated soon)