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Porlock Ridge And Saltmarsh
Porlock Bay is on the Bristol Channel, between Hurlstone Point and Porlock Weir in Somerset, England. The coastline includes shingle ridges, salt marshes and a submerged forest. In 1052 the Saxon king, Harold, landed at Porlock Bay from Ireland, and burnt the town before marching on London. Much of the coastline is under the care of the National Trust, and the coastline forms part of the South West Coast Path. Porlock Ridge and Saltmarsh Porlock Ridge and Saltmarsh () is a 186.3 hectare (460.4 acre) biological Site of Special Scientific Interest on Porlock Bay, notified in 1990. This site is notified for its nationally important active coastal geomorphological features. It is also nationally important for the salt marsh and coastal vegetated shingle habitats which occur here. At Bossington a shingle beach, through which flows the River Horner, rising sea levels in the 1990s caused the creation of salt marshes and lagoons developed in the area behind the boulder bank. Geom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Level Rise
Globally, sea levels are rising due to human-caused climate change. Between 1901 and 2018, the globally averaged sea level rose by , or 1–2 mm per year on average.IPCC, 2019Summary for Policymakers InIPCC Special Report on the Ocean and Cryosphere in a Changing Climate .-O. Pörtner, D.C. Roberts, V. Masson-Delmotte, P. Zhai, M. Tignor, E. Poloczanska, K. Mintenbeck, A. Alegría, M. Nicolai, A. Okem, J. Petzold, B. Rama, N.M. Weyer (eds.) Cambridge University Press, Cambridge, UK and New York, NY, USA. https://doi.org/10.1017/9781009157964.001. This rate is accelerating, with sea levels now rising by 3.7 mm per year. Climate scientists expect further acceleration during the 21st century. Climate change heats (and therefore expands) the ocean and melts land-based ice sheets and glaciers. Between 1993 and 2018, the thermal expansion of water contributed 42% to sea level rise; melting of temperate glaciers, 21%; Greenland, 15%; and Antarctica, 8%. Over the next ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eurasian Curlew
The Eurasian curlew or common curlew (''Numenius arquata'') is a very large wader in the family Scolopacidae. It is one of the most widespread of the curlews, breeding across temperate Europe and Asia. In Europe, this species is often referred to just as the "curlew", and in Scotland known as the "whaup" in Scots. Taxonomy The Eurasian curlew was formally described by the Swedish naturalist Carl Linnaeus in 1758 in the tenth edition of his '' Systema Naturae'' under the binomial name ''Scolopax arquata''. It is now placed with eight other curlews in the genus '' Numenius'' that was introduced by the French ornithologist Mathurin Jacques Brisson in 1760. The genus name ''Numenius'' is from Ancient Greek νουμήνιος, ''noumēnios'', a bird mentioned by Hesychius. It is associated with the curlew because it appears to be derived from ''neos'', "new" and ''mene'' "moon", referring to the crescent-shaped bill. The species name ''arquata'' is the Medieval Latin name f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northern Lapwing
The northern lapwing (''Vanellus vanellus''), also known as the peewit or pewit, tuit or tew-it, green plover, or (in Ireland and Britain) pyewipe or just lapwing, is a bird in the lapwing subfamily. It is common through temperate Eurosiberia. Behaviour It is highly migratory over most of its extensive range, wintering further south as far as North Africa, northern India, Nepal, Bhutan and parts of China. It migrates mainly by day, often in large flocks. Lowland breeders in westernmost areas of Europe are resident. It occasionally is a vagrant to North America, especially after storms, as in the Canadian sightings after storms in December 1927 and in January 1966. It is a wader that breeds on cultivated land and other short vegetation habitats. 3–4 eggs are laid in a ground scrape. The nest and young are defended noisily and aggressively against all intruders, up to and including horses and cattle. In winter, it forms huge flocks on open land, particularly arable land ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Common Shelduck
The common shelduck (''Tadorna tadorna'') is a waterfowl species of the shelduck genus, ''Tadorna''. It is widespread and common in the Euro-Siberian region of the Palearctic, mainly breeding in temperate and wintering in subtropical regions; in winter, it can also be found in the Maghreb. Fossil bones from Dorkovo (Bulgaria) described as ''Balcanas pliocaenica'' may actually belong to this species. More likely, they are an extinct species of ''Tadorna'' (if not a distinct genus) due to their Early Pliocene age; the present species is not unequivocally attested from the fossil record until some 2–3 million years later (Late Pliocene/Early Pleistocene). Taxonomy The common shelduck was formally named by the Swedish naturalist Carl Linnaeus in 1758 in the tenth edition of his ''Systema Naturae'' under the binomial name ''Anas tadorna''. Linnaeus largely based his description on "The Sheldrake or Burrough-Duck" that had been described and illustrated in 1731 by the English nat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grey Heron
The grey heron (''Ardea cinerea'') is a long-legged wading bird of the heron family, Ardeidae, native throughout temperate Europe and Asia and also parts of Africa. It is resident in much of its range, but some populations from the more northern parts migrate southwards in autumn. A bird of wetland areas, it can be seen around lakes, rivers, ponds, marshes and on the sea coast. It feeds mostly on aquatic creatures which it catches after standing stationary beside or in the water or stalking its prey through the shallows. Standing up to tall, adults weigh from . They have a white head and neck with a broad black stripe that extends from the eye to the black crest. The body and wings are grey above and the underparts are greyish-white, with some black on the flanks. The long, sharply pointed beak is pinkish-yellow and the legs are brown. The birds breed colonially in spring in "heronries", usually building their nests high in trees. A clutch of usually three to five bluish-g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allium Ampeloprasum
''Allium ampeloprasum'' is a member of the onion genus ''Allium''. The wild plant is commonly known as wild leek or broadleaf wild leek. Its native range is southern Europe to western Asia, but it is cultivated in many other places and has become naturalized in many countries. ''Allium ampeloprasum'' is regarded as native to all the countries bordering on the Black, Adriatic, and Mediterranean Seas from Portugal to Egypt to Romania. In Russia and Ukraine, it is considered invasive except in Crimea, where it is native. It is also native to Ethiopia, Uzbekistan, Iran and Iraq. It is considered naturalized in the United Kingdom, Ireland, the Czech Republic, the Baltic States, Belarus, the Azores, Madeira, the Canary Islands, Armenia, Azerbaijan, Pakistan, China, Australia (all states except Queensland and Tasmania), Mexico, the Dominican Republic, Puerto Rico, Haiti, the United States (southeastern region plus California, New York State, Ohio and Illinois), Galápagos, and Argentin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea-blite
__NOTOC__ ''Suaeda'' is a genus of plants also known as seepweeds and sea-blites. Most species are confined to saline or alkaline soil habitats, such as coastal salt-flats and tidal wetlands. Many species have thick, succulent leaves, a characteristic seen in various plant genera that thrive in salty habitats (halophile plants). There are about 110 species in the genus ''Suaeda''. The most common species in northwestern Europe is ''S. maritima''. It grows along the coasts, especially in saltmarsh areas, and is known in Britain as "common sea-blite", but as "herbaceous seepweed" in the USA. It is also common along the east coast of North America from Virginia northward. One of its varieties is common in tropical Asia on the land-side edge of mangrove tidal swamps. Another variety of this polymorphic species is common in tidal zones all around Australia (''Suaeda maritima var. australis'' is also classed as ''S. australis''). On the coasts of the Mediterranean Sea a common ''Sua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Common Glasswort
''Salicornia europaea'', known as common glasswort or just glasswort, is a halophytic annual dicot flowering plant in the family Amaranthaceae. Glasswort is a succulent herb also known as ‘Pickle weed’ or ‘ Marsh samphire’. As a succulent, it has high water content, which accounts for its slightly translucent look and gives it the descriptive name “glasswort.” To some people, it is known as “chicken toe” because of its shape. To others, it is called “saltwort.” It grows in various zones of intertidal salt marshes, on beaches, and among mangroves. Description Glasswort plants are relatively small and have jointed, bright green stems. During the fall, these plants turn red or purple. Their leaves are small and scale like, and they produce fleshy fruits that contain a single seed. Like most members of the subfamily Salicornioideae, ''Salicornia'' species use the C3 carbon fixation pathway to take in carbon dioxide from the surrounding atmosphere. Uses The a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sediment
Sediment is a naturally occurring material that is broken down by processes of weathering and erosion, and is subsequently transported by the action of wind, water, or ice or by the force of gravity acting on the particles. For example, sand and silt can be carried in suspension in river water and on reaching the sea bed deposited by sedimentation; if buried, they may eventually become sandstone and siltstone ( sedimentary rocks) through lithification. Sediments are most often transported by water (fluvial processes), but also wind ( aeolian processes) and glaciers. Beach sands and river channel deposits are examples of fluvial transport and deposition, though sediment also often settles out of slow-moving or standing water in lakes and oceans. Desert sand dunes and loess are examples of aeolian transport and deposition. Glacial moraine deposits and till are ice-transported sediments. Classification Sediment can be classified based on its grain size, grain shap ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canada
Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by total area. Its southern and western border with the United States, stretching , is the world's longest binational land border. Canada's capital is Ottawa, and its three largest metropolitan areas are Toronto, Montreal, and Vancouver. Indigenous peoples have continuously inhabited what is now Canada for thousands of years. Beginning in the 16th century, British and French expeditions explored and later settled along the Atlantic coast. As a consequence of various armed conflicts, France ceded nearly all of its colonies in North America in 1763. In 1867, with the union of three British North American colonies through Confederation, Canada was formed as a federal dominion of four provinces. This began an accretion of provinces ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
