Nobody knows with accuracy and it may be impossible to know, but there is a technique that biologists responsible for monitoring this emblematic species allow them to refine much the answer: camera trapping. A regular and increasingly use of them for 10 years has provided thousands of images that have been analyzed in detail until recognize each individual captured.
To achieve maximum performance with camera trapping you need a very good practice when placing and checking the cameras. Toni Batet, from the field team who follow the brown bear at the Parc Natural de l’ Alt Pirineu will reveal a number of tips and questions to consider about the practical use of these devices. And also will explain us the most significant results obtained after all these years.