It is realised with the help of collars that have mounted a system that memorises more data regarding the position, altitude, etc at which the animal is found. Localisation can be made with the help of signals received from satellites. This method is more efficient due to the large quantity of data that can be obtained, such as: activity, temperature, mortality sensory etc. All these data are stocked in the animal’s collar, and which automatically breaks when the battery discharges. After the collar is recovered, it is connected to a data collecting device, and ulterior these are worked with special programs, which will accentuate the home range of the animal, and even the routes used by it.
   Obtained data are then correlated with data regarding the prey, vegetation type, human activities, climatic data, etc.