An expert, when commenting on biodiversity inventory (measurements), such as counting species, explains that it does not mean much. For instance, the willow tit has unexpectedly become an indicator of biodiversity in Finland, as its population has declined in recent years.
Forestry companies often report the implementation of significant methods (practices) for biodiversity conservation, which is why we asked an expert how to measure biodiversity.

The EU Biodiversity Strategy is aimed at improving the situation (of biodiversity), although it is not clear how to determine or measure it. One way is to go to the forest and look around carefully, explains Professor Anne Tolvanen, Director of the Natural Resources Institute Finland.

She emphasises that for an ordinary citizen, standing in the forest and looking around, noticing tree trunks of various lengths and thicknesses will seem to be this variety and diversity. But - the more species you see, the more trees of different ages there are, and the more irregularly and variously they grow, the greater the biodiversity will be in that forest.