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Dersingham Bog
Dersingham Bog is a biological and geological Site of Special Scientific Interest in Norfolk, England. It is a Nature Conservation Review site, Grade 2, a National Nature Reserve and a Ramsar site It is part of the Norfolk Coast Area of Outstanding Natural Beauty, and the Roydon Common & Dersingham Bog Special Area of Conservation Part of it is a Geological Conservation Review site. Location Dersingham Bog is near the West Norfolk Villages of Dersingham and Wolferton and is one of the few remaining wilderness areas left in this part of Norfolk which is otherwise dominated by intensive agriculture. The Reserve is part of the Sandringham Royal Estate. Geology The site lies on the north west Norfolk Greensand escarpment. It is notable for a rock dating from the Lower Cretaceous Period known as 'Dersingham Formation' which has been important in understanding the geology of the region. Habitats and wildlife Dersingham Bog contains three distinct habitats, mire, heath and woodla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ramsar Convention
The Ramsar Convention on Wetlands of International Importance Especially as Waterfowl Habitat is an international treaty for the conservation and sustainable use of Ramsar sites (wetlands). It is also known as the Convention on Wetlands. It is named after the city of Ramsar in Iran, where the convention was signed in 1971. Every three years, representatives of the contracting parties meet as the Conference of the Contracting Parties (COP), the policy-making organ of the convention which adopts decisions (resolutions and recommendations) to administer the work of the convention and improve the way in which the parties are able to implement its objectives. COP12 was held in Punta del Este, Uruguay, in 2015. COP13 was held in Dubai, United Arab Emirates, in October 2018. List of wetlands of international importance The list of wetlands of international importance included 2,331 Ramsar sites in May 2018 covering over . The countries with most sites are the United Kingdo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Poor Fen
A fen is a type of peat-accumulating wetland fed by mineral-rich ground or surface water. It is one of the main types of wetlands along with marshes, swamps, and bogs. Bogs and fens, both peat-forming ecosystems, are also known as mires. The unique water chemistry of fens is a result of the ground or surface water input. Typically, this input results in higher mineral concentrations and a more basic pH than found in bogs. As peat accumulates in a fen, groundwater input can be reduced or cut off, making the fen ombrotrophic rather than minerotrophic. In this way, fens can become more acidic and transition to bogs over time. Fens can be found around the world, but the vast majority are located at the mid to high latitudes of the Northern Hemisphere. They are dominated by sedges and mosses, particularly graminoids that may be rarely found elsewhere, such as the sedge species ''Carex exilis''. Fens are highly biodiverse ecosystems and often serve as habitats for endangered or r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scots Pine
''Pinus sylvestris'', the Scots pine (UK), Scotch pine (US) or Baltic pine, is a species of tree in the pine family Pinaceae that is native to Eurasia. It can readily be identified by its combination of fairly short, blue-green leaves and orange-red bark. Description ''Pinus sylvestris'' is an evergreen coniferous tree growing up to in height and in trunk diameter when mature, exceptionally over tall and in trunk diameter on very productive sites. The tallest on record is a tree over 210 years old tree growing in Estonia which stands at . The lifespan is normally 150–300 years, with the oldest recorded specimens in Lapland, Northern Finland over 760 years. The bark is thick, flaky and orange-red when young to scaly and gray-brown in maturity, sometimes retaining the former on the upper portion.Trees for LifeSpecies profile: Scots pine/ref> The habit of the mature tree is distinctive due to its long, bare and straight trunk topped by a rounded or flat-topped mass of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Raised Beach
A raised beach, coastal terrace,Pinter, N (2010): 'Coastal Terraces, Sealevel, and Active Tectonics' (educational exercise), from 2/04/2011/ref> or perched coastline is a relatively flat, horizontal or gently inclined surface of marine origin,Pirazzoli, PA (2005a): 'Marine Terraces', in Schwartz, ML (ed) ''Encyclopedia of Coastal Science.'' Springer, Dordrecht, pp. 632–633 mostly an old abrasion platform which has been lifted out of the sphere of wave activity (sometimes called "tread"). Thus, it lies above or under the current sea level, depending on the time of its formation.Strahler AH; Strahler AN (2005): ''Physische Geographie.'' Ulmer, Stuttgart, 686 p.Leser, H (ed)(2005): ‚''Wörterbuch Allgemeine Geographie.'' Westermann&Deutscher Taschenbuch Verlag, Braunschweig, 1119 p. It is bounded by a steeper ascending slope on the landward side and a steeper descending slope on the seaward side (sometimes called "riser"). Due to its generally flat shape, it is often used for a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Escarpment
An escarpment is a steep slope or long cliff that forms as a result of faulting or erosion and separates two relatively level areas having different elevations. The terms ''scarp'' and ''scarp face'' are often used interchangeably with ''escarpment''. Some sources differentiate the two terms, with ''escarpment'' referring to the margin between two landforms, and ''scarp'' referring to a cliff or a steep slope. In this usage an escarpment is a ridge which has a gentle slope on one side and a steep scarp on the other side. More loosely, the term ''scarp'' also describes a zone between a coastal lowland and a continental plateau which shows a marked, abrupt change in elevation caused by coastal erosion at the base of the plateau. Formation and description Scarps are generally formed by one of two processes: either by differential erosion of sedimentary rocks, or by movement of the Earth's crust at a geologic fault. The first process is the more common type: the escarpment is a t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glowworm
Glowworm or glow-worm is the common name for various groups of insect larvae and adult larviform females that glow through bioluminescence. They include the European common glow-worm and other members of the Lampyridae, but bioluminescence also occurs in the families Elateridae, Phengodidae and Rhagophthalmidae among beetles; as well as members of the genera Arachnocampa, Keroplatus and Orfelia among keroplatid fungus gnats. Beetles Four families of beetles are bioluminescent. The wingless larviform females and larvae of these bioluminescent species are usually known as "glowworms". Winged males may or may not also exhibit bioluminescence. Their light may be emitted as flashes or as a constant glow, and usually range in colour from green, yellow, to orange. The families are closely related, and are all members of the beetle superfamily, Elateroidea. Phylogenetic analyses have indicated that bioluminescence may have a single evolutionary origin among the families Lampyridae, P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acronicta Menyanthidis
''Acronicta menyanthidis'', the light knot grass, is a moth of the family Noctuidae. It is distributed through northern, central and eastern Europe, east to Siberia and the Russian Far East. The wingspan is 33–41 mm. Forewing bluish white, dusted and shaded with dark grey; a short black streak from near base; marginal area darker, sometimes blackish, grey; orbicular stigma quite small.- In the ab. ''suffusa'' Tutt the whole forewing is suffused with dark grey. - ab. ''obsoleta'' Tutt has the forewing quite pale with all markings faint; on the contrary ab. ''scotica'' Tuff from the west coast of Scotland is larger and brighter than the type, with all markings clear and distinct.Seitz, A. Ed., 1914 ''Die Großschmetterlinge der Erde'', Verlag Alfred Kernen, Stuttgart Band 3: Abt. 1, Die Großschmetterlinge des palaearktischen Faunengebietes, Die palaearktischen eulenartigen Nachtfalter, 1914 The adults fly at night from May to July . They are attracted to light. The cater ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sympetrum Danae
''Sympetrum danae'', the black darter or black meadowhawk is a dragonfly found in northern Europe, Asia, and North America. At about long, it is Britain's smallest resident dragonfly. It is a very active late summer insect typical of heathland and moorland bog pools. Members of the genus ''Sympetrum'' are known as darters in the UK and as meadowhawks in the US and Canada. Identification Both sexes have black legs and pterostigmata and a very broad base to the hind wing. The thorax has yellow sides separated by a bold black panel in which are three yellow spots, resembling a highland darter ('' Sympetrum nigrescens''). The male has a mainly black thorax and abdomen. The abdomen has small yellow marks on the side, that darken with age. The wings are clear. The female has black legs and brown eyes. The abdomen is mainly yellow, becoming browner with age. It has small yellow patches at the wing bases. Breeding This darter is restricted to acidic shallow pools, lake margins and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cranberry
Cranberries are a group of evergreen dwarf shrubs or trailing vines in the subgenus ''Oxycoccus'' of the genus ''Vaccinium''. In Britain, cranberry may refer to the native species ''Vaccinium oxycoccos'', while in North America, cranberry may refer to ''Vaccinium macrocarpon''. ''Vaccinium oxycoccos'' is cultivated in central and northern Europe, while ''Vaccinium macrocarpon'' is cultivated throughout the northern United States, Canada and Chile. In some methods of classification, ''Oxycoccus'' is regarded as a genus in its own right. They can be found in acidic bogs throughout the cooler regions of the Northern Hemisphere. Cranberries are low, creeping shrubs or vines up to long and in height; they have slender, wiry stems that are not thickly woody and have small evergreen leaves. The flowers are dark pink, with very distinct ''reflexed'' petals, leaving the style and stamens fully exposed and pointing forward. They are pollinated by bees. The fruit is a berry that i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhynchospora Alba
''Rhynchospora alba'', the white beak-sedge, is a plant in the sedge family, Cyperaceae. It is a tufted herbaceous perennial around 50 cm tall, with white inflorescences that flower in August. The fruit of the sedge is a small achene with a characteristic beak-like cap. It is dispersed by wind or falls by gravity, leading to individuals existing in tight clumps. The species favours wet, acidic and nutrient poor soils, thriving in ''Sphagnum''-dominated bogs, but also peaty grasslands. As such it is often used as a positive indicator for bog and mire ecosystem health. The species was first described by Linnaeus in 1753 under a different genus and name, ''Schoenus albus'', but was subsequently reclassified into the novel genus '' Rhynchospora'' by Vahl in 1805. It has a wide range across the Northern Hemisphere, extending from the inland wetlands of North America, across Europe to the Korean Peninsula. Due to this large range, there is considerable variation between population ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drosera Rotundifolia
''Drosera rotundifolia'', the round-leaved sundew, roundleaf sundew, or common sundew, is a carnivorous species of flowering plant that grows in bogs, marshes and fens. One of the most widespread sundew species, it has a circumboreal distribution, being found in all of northern Europe, much of Siberia, large parts of northern North America, Korea and Japan but is also found as far south as California, Mississippi and Alabama in the United States of America and in New Guinea. Description The leaves of the common sundew are arranged in a basal rosette. The narrow, hairy, long petioles support round laminae. The upper surface of the lamina is densely covered with red glandular hairs that secrete a sticky mucilage. A typical plant has a diameter of around , with a tall inflorescence. The flowers grow on one side of a single slender, hairless stalk that emanates from the centre of the leaf rosette. White or pink in colour, the five-petalled flowers produce , light brown, sl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Narthecium Ossifragum
''Narthecium ossifragum'', commonly known as bog asphodel, Lancashire asphodel or bastard asphodel, is a species of flowering plant in the family Nartheciaceae. It is native to Western Europe, found on wet, boggy moorlands up to about in elevation. It produces spikes of bright yellow flowers in summer. The bright orange fruits have been used as a colourant to replace saffron by Shetland Islanders.Richard Mabey ''Flora Britannica'' Despite the plant's English name "bog asphodel", it is not particularly closely related to the true asphodels. In addition to other forms of pollination, this plant is adapted to rain-pollination. The Latin specific name ''ossifragum'' means "bone-breaker", and refers to a traditional belief that eating the plant caused sheep to develop brittle bones. The probable origin of this story is that sheep eating a calcium-poor diet are likely to develop bone weakness, and ''N. ossifragum'' favours acidic low-calcium soils. Description Bog asphodel is a tuf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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