The complex interactions and developments of biodiversity in the agricultural landscape have, to date, been inadequately analyzed due to a lack of data. The comprehensive trend monitoring can make important contributions to this deficit, but there are many important questions that require a deeper analysis based on an extended set of indicators. In order to answer these questions, it is not absolutely necessary to collect the indicators for the whole of Germany and over many decades. A regionally and temporally limited design can suffice.
After the questions have been answered, the project can basically be ended. Often, however, agri-environment policies will re-adjust their actions on the basis of new scientific evidence, and then ask for science to evaluate the changes in policy. In these cases, in-depth monitoring needs to be continuously adapted to new findings and / or changed policy needs. The consequence: fewer long time series, but more flexibility, meaning adaptation of content and methods to the changing questions.