higher zone, it is mainly covered by oak forests (especially Quercus conferta) and at lower parts by beech and chestnut forests. Maquis covers the lower zone. At the eastern part of the mountain it is very dense and dominated by holm oak (Quercus ilex). The rest of maquis is dominated by kermes oak and wild olive and has deteriorated as a result of intense grazing. This area is used for pasture by high numbers of farm animals. Mavrovouni also includes ravines, rock formations, grasslands, phrygana and agricultural land. A significant number of streams run down the mountain, most of them drying in summer. At the banks of the streams there are plane trees, alders, poplars and willows. The two water reservoirs, one near Stefanovikio () and the other near Kalamaki (), were constructed in 1988 for irrigation purposes in the area of the former Lake Karla. Their water flowed in from the river Pineios through the Asmaki stream. However, industrial and agricultural wastes flowed into the reservoirs. They were eutrophic and a rapid increase of reedbeds into them was observed. Kefalovryso spring has suffered the effects of human activities. Its area has been reduced, it has lost its natural vegetation and possibly its native fishes, as well. Now it is used as a pond for the production of commercial (trout etc.) and exotic fishes. Notes The habitat type 5420 concerns mainly Cistus salviifolius, Cistus creticus, Cistus monspeliensis, Thymus capitatus, Ballota acetabulosa, Sarcopoterium spinosum and Genista acanthoclada. The reedbeds (Phragmites australis), occurring in the two reservoirs and not included in Annex I, could constitute an additional habitat type. See also CORINE References External links Ramsar BirdLife IBA Factsheet Scientific publications for Lake Karla, Greece Lakes of Greece Mountain lakes Landforms of Thessaly Landforms of Magnesia (regional unit)