This was shown by a study by a group of scientists, such as the head of the forestry office in Stavenhagen (Mecklenburg lakes), Ralf Hecker said. To the growth of the branches and the condition of the leaves was see that the five largest pedunculate oaks have coped with the dry summer of 2018 and 2019 as well. More detailed results will be presented in the autumn. Currently, the wild experienced enclosure by up to 1000 years old oak trees, a rush of visitors, as Hecker said. Are registered daily to thousands of guests in the 75-acre wooded area with fallow deer, mouflon and Turopolje pigs. The Ivenacker oak trees were declared by the Association of German foresters in addition to the forest area by the year 2020, and 2021.