The prestigious scientific journal Nature Plants has published the results of a researcher team including a scholar from the biology department of the Adam Mickiewicz University in Poznań, Dr Michał Bogdziewicz. Researchers proved the impact of global warming on the reproductive capacity of beech.
The international team worked on a unique set of data collected by scientists from the United Kingdom. For 39 years, they monitored more than 100 common beech trees, counted seeds produced by trees, checked the proportion of them attacked by Cydia insects, and the proportion of pollinated seeds.
Scientists have proved that global warming has had a positive effect – beeches produce more seeds on average. Unfortunately, during the last 40 years the increase of beech seeds has collapsed, which led to the fact that the effectiveness of “escaping” from insects has dropped dramatically, the average number of pollinated flowers has also decreased, i.e. all positive effect is absorbed by insects eating seeds.