sentences:  Other increases or returns to former parts of their range include have been noted in the Morava region of southwestern Slovakia as well as some parts of the Czech Republic, Serbia and Austria.However, overall 85% of the population in the Carpathian mountains region that forms the bulk of the land in eastern Europe was restricted to the Great Hungarian Plain, and were isolated from other populations.In Slovakia, the gap in the distribution in the Carpathian basin has led to concern about genetic isolation.