Following Observation fields are currently defined for the project

• Observation field: Tree Dieback: Tree species – Tree needs not to be observed species of the observation. Higher taxon IDs are completely fine
• Observation field: Tree Dieback: healthy/unhealthy/dead – does the tree look healthy (from first sight), unhealthy or already dead, or at least rather dead?
• Observation field: Tree Dieback: Assumed cause – which organism is known as the main factor for the tree dying? E.g. Ash Dieback Europe: Hymenoscyphus fraxineus, Acer: Cryptostroma corticale