Large oaks Quercus robur have increased at Tumhem's oak meadow

Hans Alexandersson
We have described a significant increase in the number of large oaks Quercus robur in the Tunhem oak meadow during 23 years. We define large oak as having a circumference at chest height larger than 250 centimeters. The number of large oaks have increased by 29 percent from our first survey in 1996 to our second survey in 2019. Most of the recruitment of larger oaks are in the smaller size-classes from 250 to 400...
4 views reported since publication in 2021.

These counts follow the COUNTER Code of Practice, meaning that Internet robots and repeats within a certain time frame are excluded.
What does this mean?