Eutrophic Mineral-rich waters, usually with high levels of soluble nitrogen and – phosphorous. Eutrophic water bodies support a high primary productivity. Fen A wetland type often following swamp in the hydroseral succession. Fens have a – summer water table at or below the sediment surface but flooded in winter. Can be divided into poor and rich fens, based both on the chemical composition of the fen waters and the species diversity of the vegetation. Hydrosere A continuum of vegetation types, which replace each other as succession – proceeds from open water to forested mire or dry woodland. LNR Local Nature Reserve. – Marsh The wet mineral-ground margin of freshwater swamp or fen. Usually non-peat – forming systems only subject to periodic waterlogging during the winter months. Mesotrophic The terms oligotrophic and eutrophic are used to describe opposite ends – of the spectrum of primary productivity in water bodies. Lakes and rivers may however have a trophic system between these two extremes, a range of variation, which is encompassed by the term mesotrophic. Mire Any stage of the hydrosere where there is a high water table, suppression of – organic matter decomposition or undecomposed organic material accumulates as peat. Is a broad term for land above the moor wall (usually 250-300 metre). Moorland – Moorland supports a wide range of habitats, but is primarily comprised of blanket bog, dry upland heath and acid grassland. Niche Is the sum of the characters that determines the position of a species in an – ecosystem including all the factors necessary for the survival of the species. NVC - National Vegetation Classification. The NVC is a standard description of the types of vegetation of that form under particular environmental conditions and in different geographical locations. Nitrophile Nitrogen loving species. – NNR National Nature Reserve – Oligotrophic In , oligotrophic waters are mainly found in upland areas where high – rainfall and hard, nutrient-poor rocks provide a supply of mineral-poor waters. Oligotrophic waters support low primary productivity due to low levels, in particular, of Nitrogen and Phosphorous, and are usually very clear. Ombrotrophic A supply of nutrients to a wetland system entirely from precipitation (i.e. – rainwater, snow and atmospheric fall). Peat The partially decomposed or undecomposed organic remains of plants and – animals. Peat forms when the decomposition or physical removal of organic material fails
Eutrophic – Mineral-rich waters, usually with high levels of soluble nitrogen and phosphorous. Eutrophic water bodies support a high primary productivity. Fen – A wetland type often following swamp in the hydroseral succession. Fens have a summer water table at or below the sediment surface but flooded in winter. Can be divided into poor and rich fens, based both on the chemical composition of the fen waters and the species diversity of the vegetation. Hydrosere – A continuum of vegetation types, which replace each other as succession proceeds from open water to forested mire or dry woodland. LNR – Local Nature Reserve. Marsh – The wet mineral-ground margin of freshwater swamp or fen. Usually non-peat forming systems only subject to periodic waterlogging during the winter months. Mesotrophic – The terms oligotrophic and eutrophic are used to describe opposite ends of the spectrum of primary productivity in water bodies. Lakes and rivers may however have a trophic system between these two extremes, a range of variation, which is encompassed by the term mesotrophic. Mire – Any stage of the hydrosere where there is a high water table, suppression of organic matter decomposition or undecomposed organic material accumulates as peat. Moorland – Is a broad term for land above the moor wall (usually 250-300 metre). Moorland supports a wide range of habitats, but is primarily comprised of blanket bog, dry upland heath and acid grassland. Niche – Is the sum of the characters that determines the position of a species in an ecosystem including all the factors necessary for the survival of the species. NVC - National Vegetation Classification. The NVC is a standard description of the types of vegetation of that form under particular environmental conditions and in different geographical locations. Nitrophile – Nitrogen loving species. NNR – National Nature Reserve Oligotrophic – In , oligotrophic waters are mainly found in upland areas where high rainfall and hard, nutrient-poor rocks provide a supply of mineral-poor waters. Oligotrophic waters support low primary productivity due to low levels, in particular, of Nitrogen and Phosphorous, and are usually very clear. Ombrotrophic – A supply of nutrients to a wetland system entirely from precipitation (i.e. rainwater, snow and atmospheric fall). Peat – The partially decomposed or undecomposed organic remains of plants and animals. Peat forms when the decomposition or physical removal of organic material fails
240216%20WY%20Local%20Sites%20Selection%20Criteria%2021-01-2016%20RM.docx