Home Our Union Member Organisations Members Directory Van Tienhoven Stichting Voo... Share: IUCN MEMBER Van Tienhoven Stichting voor Internationale Natuurbescherming Member website Member at a glance Member name: Van Tienhoven Stichting voor Internationale Natuurbescherming Membership category: National NGO Member since: Jan, 1949 Website: Member website Member profile and contacts (available to Members only): Member profile Operational region: Europe Statutory region: West Europe Learn more about IUCN Members Overview See all Members Become an IUCN Member