November to . Late September and early October is a dry and sunny time of year (so-called Indian summer). Winter starts on 21 December with temperatures around . In December and January, it is usually snowing, these are the coldest months of the year. At lower altitudes, snow does not stay the whole winter, it changes into the thaw and frost. Winters are colder in the mountains, where the snow usually lasts until March or April and the night temperatures fall to and colder. Biodiversity Slovakia signed the Rio Convention on Biological Diversity on 19 May 1993, and became a party to the convention on 25 August 1994. It has subsequently produced a National Biodiversity Strategy and Action Plan, which was received by the convention on 2 November 1998. The biodiversity of Slovakia comprises animals (such as annelids, arthropods, molluscs, nematodes and vertebrates), fungi (Ascomycota, Basidiomycota, Chytridiomycota, Glomeromycota and Zygomycota), micro-organisms (including Mycetozoa), and plants. The geographical position of Slovakia determines the richness of the diversity of fauna and flora. More than 11,000 plant species have been described throughout its territory, nearly 29,000 animal species and over 1,000 species of protozoa. Endemic biodiversity is also common. Slovakia is located in the biome of temperate broadleaf and mixed forests and terrestrial ecoregions of Pannonian mixed forests and Carpathian montane conifer forests. As the altitude changes, the vegetation associations and animal communities are forming height levels (oak, beech, spruce, scrub pine, alpine meadows and subsoil). Forests cover 44% of the territory of Slovakia. The country had a 2019 Forest Landscape Integrity Index mean score of 4.34/10, ranking it 129th globally out of 172 countries. In terms of forest stands, 60% are broadleaf trees and 40% are coniferous trees. The occurrence of animal species is strongly connected to the appropriate types of plant associations and biotopes. Over 4,000 species of fungi have been recorded from Slovakia. Of these, nearly 1,500 are lichen-forming species. Some of these fungi are undoubtedly endemic, but not enough is known to say how many. Of the lichen-forming species, about 40% have been classified as threatened in some way. About 7% are apparently extinct, 9% endangered, 17% vulnerable, and 7% rare. The conservation status of non-lichen-forming fungi in Slovakia is not well documented, but there is a red list for its larger fungi. Government and politics Slovakia is a parliamentary democratic republic with a multi-party system. The last parliamentary