Loch Leven (Scottish Gaelic: Loch Lìobhann) is a fresh water loch located immediately to the east of the burgh of Kinross in Perth and Kinross council area, central Scotland. Roughly triangular, the loch is about six kilometres (3+1⁄2 miles) across at its longest. Prior to the canalisation of the River Leven, and the partial draining of the loch in 1826–36, Loch Leven was considerably larger. The drop in water level by 1.4 m (4 ft 7 in) reduced the loch to 75% of its former size, and exposed several small islands, as well as greatly increasing the size of the existing ones. There are seven islands on the loch, the largest being St Serf's Inch. Lochleven Castle, where Mary, Queen of Scots was imprisoned in 1567, lies on one of these islands, and it can be reached by a ferry operated from Kinross by Historic Environment Scotland during the summer months. NatureScot describe Loch Leven as "one of Scotland's top natural assets", due to its rich ecosystem that supports many different species of plants, insects, fish and birds. It is of particular significance to migrating birds, who use it as a stopover when flying between their breeding and wintering grounds, due to its lowland location, shallow nutrient rich waters, large water surface, and islands (which provide safe nesting sites). Loch Leven holds numerous national and international conservation designations, including being a national nature reserve (NNR).
Flora and fauna
As the largest lowland loch in Scotland, Loch Leven is an important site for waterfowl, with up to 35,000 birds present in the winter months. These birds migrate from a variety of places, such as Greenland, Iceland, Ireland, Siberia and northern and central Europe. Loch Leven is particularly important for pink-footed geese, and up to 20,000 such geese (nearly 10% of the world's population) may be present at times, although many geese move south from the loch as winter progresses. Other bird wintering at Loch Leven include greylag geese, whooper swans, goldeneyes, tufted ducks, pochards, teals, gadwalls, cormorants, and shovelers. Loch Leven is also important for breeding birds, and hosts one of the largest concentrations of breeding ducks of any non-coastal site in Europe. The most numerous species are tufted duck and mallard; gadwall, shoveler, shelduck, pochard, teal, pintail and wigeon are also present. The loch is also used by birds such as mute swans at the end of the summer for moulting, as the loch is large enough to allow them to avoid predators during a period when they are flightless as the shed their summer feathers and grow new winter plumage. The two main fish species present in Loch Leven are brown trout and perch: the loch's trout have long been noted for their unusual colour and high quality. Other fish living in the loch include sticklebacks, pike, eels, and minnows. Some species of fish noted in historical records are no longer present: it is thought that Arctic char were impacted by the lowering of the loch's water level, whilst the damming of the River Leven and rise in pollution due to the increase in industry are the likely reasons for the demise of the population of Atlantic salmon. The loch supports many species of invertebrates, which provide a food source for many of the species of birds, fish and mammals. During the summer months large clouds of small flies form a vital part of the food for ducklings. Some rare species of beetle are present, including the carrion beetle Thanatophilus dispar, the reed beetle Macroplea appendiculata and the ant beetle Anthicus scoticus. Other invertebrates found at the loch include aquatic snails and several species of dragonflies and damselflies. Otters are found around the loch and the burns that feed into it, and water shrews and water voles live along the banks of ditches and burns. A total of six species of bat have been recorded at the NNR: Daubenton, brown long-eared, noctule, Nathusius, soprano and common pipistrelle bat. Grey squirrel numbers are controlled and this has allowed red squirrels to re-establish themselves in woodlands around the loch. Red fox, American mink and brown rat are also present on the reserve. As with the grey squirrels numbers are controlled, for these pest species this is to protect nesting birds. The Loch Leven NNR hosts a wide assemblage of vascular plant species that grow around the loch shore, including three species listed on the IUCN Red List (coral root orchid, Loch Leven spearwort and lesser water-plantain) and other species rated as "nationally rare" or "nationally scarce" such as holy grass, threadrush and mudwort. Lesser water plantain, Loch Leven spearwort, mudwort and threadrush live on areas of mud, sand or gravel around the lochside. They require sites that are intermittently exposed, and either natural erosion or active management is needed to prevent reeds or other aquatic plants from out-competing them. Coral-root orchid is found at only one location on the reserve.
History
The area around Loch Leven has been inhabited for millennia, and the remains of a crannog (a dwelling constructed on an artificial island, probably during the Iron Age) have been found off Kirkgate Park. St Serf's Inch was the home of a Culdee and then an Augustinian monastic community, St Serf's Inch Priory. There was a monastic community on the island which was old in the 12th century. The monastery produced a series of Gaelic language charters from the 11th and 12th centuries which were translated into Latin in the late 12th century. It was here that Prior Andrew of Wyntoun wrote the Orygynale Cronykil of Scotland. Lochleven Castle is strongly associated with Mary, Queen of Scots, who was imprisoned here in 1567–1568, and forced to abdicate as queen, before escaping with the help of her gaoler's family. After her escape her forces were defeated at the Battle of Langside, and she fled to England. Several relics were found during the partial draining of the loch in 1826–36, one of them being a sceptre, "apparently of cane, hilted with ivory, and mounted with silver, upon which … were the letters of the words, 'Mary, Queen of Scots'", found near the Mary Knowe, where she is supposed to have landed after her escape from the castle. Kinross House lies on the western shore of the loch facing out to the castle. It was built in 1684–1695 by its owner, the architect Sir William Bruce. Visitors to Loch Leven have long noted the abundance of wildlife here:
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