Researchers at the EBD-CSIC relate the trend to the change of characteristics of the territory occupied by the bears. The study points to the need to adapt management tools for the conservation of the new distribution area of the population of this endangered species. The researchers have observed that while the area with presence of brown bear individuals has increased considerably from the 1990s, the area with presence of bears with cubs has remained stable over time.

Adult males mark trees during the breeding season by scratching and biting the bark. These markings help us to locate the species' breeding grounds, crucial for successful conservation plans