In this contribution we give an overview of the Slovak sites of the worldwide GLORIA initiative that are included into the LTER network. GLORIA (Global Observation Research Initiative in Alpine Environments) is a long-term ob- servation programme and international research network to assess climate change impacts on the biological richness of the planet’s high mountain ecosystems using the unifid methodological approach. Nowadays, 121 regions from Europe, North and South America, Australia, Asia and Africa are included. In Slovakia, it is coordinated by the Institute of Landscape Ecology since 2000. The system of permanent plots was established in 2001 on the summits of the following four Tatra´s peaks: Krížna (1,918.6 m a.s.l.), Veľká kopa (2,052.4 m a.s.l.), Sedielková kopa (2,061.3 m a.s.l.), Krátka (2,374.5 m a.s.l.). The plots are monitored in 7-year cycles – the fist took place in 2001, the second in 2008 and the last in 2015. The results of the fist two samplings revealed some changes in flristic composition, especially higher abundance of some grasses and, on the other hand, retreat of some sensible species. The results of the last monitoring are currently being processed. It can be expected that such dataset from three periods observed in the course of 14 years is able to provide a valid picture of the processes and trends taking place in the alpine zone of Tatra Mts.