An outbreak of African swine fever in 2015 reduced the wild boar population by 90 per cent in Białowieża primeval forest, so more acorns grew into trees
Join us for a mind-blowing festival of ideas and experiences.is going hybrid, with a live in-person event in Manchester, UK, that you can also enjoy from the comfort of your own home,Acorns, the nuts produced by oak trees, can form up to 70 per cent of a wild boar’s diet, says Bogdziewicz. The more acorns are eaten, the fewer are left to grow into trees.
Oak trees produce acorns during distinct periods every few years, a strategy called masting. In a mast year, all the trees in a community produce lots of the nuts at the same time. As a result, animals cannot eat them all. This strategy works well for oak trees when it comes to smaller rodents, but is less effective with boars. “Boars can move further to look for other sources of food and they also have wider diets that allow them to switch to other stuff in years of famine,” says Bogdziewicz.The 2015 outbreak of swine fever in the forest led to a 90 per cent drop in boar numbers in the following year.
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