In English, it would be: "Norwegian researchers are curious about how climate change will affect wild blueberry seasons in the coming years. For several years, ecologists have been monitoring a small area along the Sognefjord, near Kaupanger. Here, they study the growth of blueberries and cranberries in detail.
Researchers conduct experiments where they warm some areas with small greenhouses and compare these areas with naturally unheated ones. "We count flowers, fruits, and bees," explains researcher Stein Joar Hegland, an ecologist at the Western Norway University of Applied Sciences.
The researchers examine areas at different altitudes, and the greenhouses they use are located at 100, 500, and 900 meters above sea level, respectively. This is to study how warming in different areas affects pollination and the number of fruits produced.
"So far, we haven't collected enough data to draw conclusions. But we know from research and experience that climate has a significant impact on small fruit production," says Hegland.
This is illustrated, for example, by a study conducted in Maine, United States, where researchers analyzed data from 40 years ago. The findings showed that the temperature increase had made the areas where wild blueberry plants grow much drier.
According to the researchers interviewed by the New York Post, less water translates to a lower quantity of blueberries produced. Maine is the only area in the United States with commercial producers of wild blueberries.
Preliminary results from Sognefjord also indicate that warmer weather has a negative impact on blueberry plant growth. "It is a species adapted to our northern ecosystems. With warmer weather, it could become too hot for blueberries in low-lying areas," says Hegland.