Fruit trees have a protective mechanism to prevent them from blooming as early as January. As Baur points out, this resolves after a certain number of cold days. In a mild winter, flowering is therefore delayed.
This has a huge impact on the pollen exchange of bees flying around for pollination. Worst of all, mild winters can also prevent flowers from forming. According to Baur, previously well-functioning ecosystems are drifting apart with increasingly mild winters.
According to Baur, forest trees such as beech sprout earlier after mild winters. As a result, caterpillars that feed on its leaves hatch prematurely. This in turn affects migratory birds that do not feed their young on caterpillars at an early stage. You miss the meal on time.
(SDA)