The thesis investigates the circadian activity of the Eurasian lynx and its prey, roe deer and chamois. The study was carried out by monitoring the animals with automatic cameras, which were deployed in forests throughout the central part of the lynx's range in the Slovenian Dinaric Mountains. The survey showed that the lynx is most active at night with two peaks of activity around morning and evening twilight, when its prey, i.e. roe deer and chamois, are also most active. During the night, these two prey species are less active than the lynx, while their daytime activity is higher. The study shows that the lynx adjusts its activity according to the activity of its prey, but also that its prey adjusts its activity according to the presence of the lynx, as in areas where the lynx is present, the chamois and the roe deer are much more active during the day than in areas where the lynx is absent. The method of monitoring the circadian activity of lynx with automatic cameras proved to be successful, leading to the findings described above.
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