Thanks to Benjamin for the perfect organisation of the first day mapping session.
First results can be seen here:
http://pericopsis.org/trees/enginposition.php?polygon=meeting

Strategies for mapping: participants were divided in 3 teams. Each team received a color map and a tree identification guide.

Team 1 at work. If you don't know the name: always ask the younger!

How to measure the diameter of this branched tree at breast height?

Mapping session