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Pierres De Lecq
Les Pierres de Lecq ( Jèrriais: ''Les Pièrres dé Lé'') or the Paternosters are a group of uninhabitable rocks or a reef in the Bailiwick of Jersey between Jersey and Sark, north of Grève de Lecq in Saint Mary, and west of the Cotentin Peninsula in Normandy. Only three or four of the rocks remain visible at high tide: L'Êtaîthe (the eastern one), La Grôsse (the big one) and La Vouêtaîthe (the western one). The area has one of the greatest tidal ranges in the world, sometimes being as much as . The name ''Paternosters'' is connected with a legend relating to the colonisation of Sark in the 16th century. According to this legend a boatload of women and children was wrecked on the reef and their cries can still be heard from time to time in the wind. Superstitious sailors would say the Lord's Prayer when passing the rocks, hence the name ''Paternosters''. The rocks are considered to form a biogeographical boundary between a cold and a warmer part of the ocean. Togeth ... [...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 site, Ramsar sites (wetlands). It is also known as the Convention on Wetlands. It is named after the city of Ramsar, Mazandaran, Ramsar in Iran, where the convention was signed in 1971. Every three years, representatives of the contracting parties meet as the Ramsar Convention#Conference of the Contracting Parties, Conference of the Contracting Parties (COP), the policy-making organ of the wetland conservation, 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 importan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biogeography
Biogeography is the study of the distribution of species and ecosystems in geographic space and through geological time. Organisms and biological communities often vary in a regular fashion along geographic gradients of latitude, elevation, isolation and habitat area.Brown University, "Biogeography." Accessed February 24, 2014. . Phytogeography is the branch of biogeography that studies the distribution of plants. Zoogeography is the branch that studies distribution of animals. Mycogeography is the branch that studies distribution of fungi, such as mushrooms. Knowledge of spatial variation in the numbers and types of organisms is as vital to us today as it was to our early human ancestors, as we adapt to heterogeneous but geographically predictable environments. Biogeography is an integrative field of inquiry that unites concepts and information from ecology, evolutionary biology, taxonomy, geology, physical geography, palaeontology, and climatology.Dansereau, Pierre. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dolphin
A dolphin is an aquatic mammal within the infraorder Cetacea. Dolphin species belong to the families Delphinidae (the oceanic dolphins), Platanistidae (the Indian river dolphins), Iniidae (the New World river dolphins), Pontoporiidae (the brackish dolphins), and the extinct Lipotidae (baiji or Chinese river dolphin). There are 40 extant species named as dolphins. Dolphins range in size from the and Maui's dolphin to the and orca. Various species of dolphins exhibit sexual dimorphism where the males are larger than females. They have streamlined bodies and two limbs that are modified into flippers. Though not quite as flexible as seals, some dolphins can briefly travel at speeds of per hour or leap about . Dolphins use their conical teeth to capture fast-moving prey. They have well-developed hearing which is adapted for both air and water. It is so well developed that some can survive even if they are blind. Some species are well adapted for diving to great depths. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cetacea
Cetacea (; , ) is an infraorder of aquatic mammals that includes whales, dolphins, and porpoises. Key characteristics are their fully aquatic lifestyle, streamlined body shape, often large size and exclusively carnivorous diet. They propel themselves through the water with powerful up-and-down movement of their tail which ends in a paddle-like fluke, using their flipper-shaped forelimbs to maneuver. While the majority of cetaceans live in marine environments, a small number exclusively reside in brackish water or fresh water. Having a cosmopolitan distribution, they can be found in some rivers and all of Earth's oceans, and many species inhabit vast ranges where they migrate with the changing of the seasons. Cetaceans are famous for their high intelligence and complex social behaviour as well as for the enormous size of some of the group's members, such as the blue whale which reaches a maximum confirmed length of 29.9 meters (98 feet) and a weight of 173 tonnes (190 short t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ramsar Site
A Ramsar site is a wetland site designated to be of international importance under the Ramsar Convention,8 ha (O) *** Permanent 8 ha (P) *** Seasonal Intermittent < 8 ha(Ts) ** es on s: *** Permanent (herb dominated) (Tp) *** Permanent / Seasonal / Intermittent (shrub dominated)(W) *** Permanent / Seasonal / Intermittent (tree dominated) (Xf) *** Seasonal/intermittent (herb dominated) (Ts) ** Marshes on soils: *** Permanent (non-forested)(U) *** Permanent (forested)(Xp) ** Marshes on inorganic or peat soils: *** Marshes on inorganic or peat soils / High altitude (alpine) (Va) *** Marshes on inorganic or peat soils / Tundra (Vt) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atlantic Salmon
The Atlantic salmon (''Salmo salar'') is a species of ray-finned fish in the family Salmonidae. It is the third largest of the Salmonidae, behind Siberian taimen and Pacific Chinook salmon, growing up to a meter in length. Atlantic salmon are found in the northern Atlantic Ocean and in rivers that flow into it. Most populations are anadromous, hatching in streams and rivers but moving out to sea as they grow where they mature, after which the adults seasonally move upstream again to spawn. When the mature fish re-enter rivers to spawn, they change in colour and appearance. Some populations of this fish only migrate to large lakes, and are "landlocked", spending their entire lives in freshwater. Such populations are found throughout the range of the species. Unlike Pacific species of salmon, ''S. salar'' is iteroparous, which means it can survive spawning and return to sea to repeat the process again in another year. Such individuals can grow to extremely large sizes, although ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Short-snouted Seahorse
The short-snouted seahorse (''Hippocampus hippocampus'') is a species of seahorse in the family Syngnathidae. It was endemic to the Mediterranean Sea and parts of the North Atlantic, particularly around Italy and the Canary Islands. In 2007, colonies of the species were discovered in the River Thames around London and Southend-on-Sea. Their preferred habitat is shallow muddy waters, estuaries or seagrass beds. Protection In the United Kingdom they are protected under the Wildlife and Countryside Act 1981 and two of the 27 Marine Conservation Zones designated in seas off England were established to protect populations and the habitats of short-snouted seahorses. In 2010, the London Zoo, which operates a short-snouted seahorse breeding programme, saw the birth of 918 baby seahorses. Regionally, the short-snouted seahorse is classified as Near Threatened in the Mediterranean and Data Deficient in Croatia. In Europe this species is normally caught as bycatch and such catches may be s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
European Sea Sturgeon
The European sea sturgeon (''Acipenser sturio''), also known as the Atlantic sturgeon or common sturgeon, is a species of sturgeon native to Europe. It was formerly abundant, being found in coastal habitats all over Europe. It is anadromous and breeds in rivers. It is currently a critically endangered species. Although the name Baltic sturgeon sometimes has been used, it has now been established that sturgeon of the Baltic region are '' A. oxyrinchus'', a species otherwise restricted to the Atlantic coast of North America. Description The wedge-shaped head of the European sea sturgeon ends in a long point. There are many sensitive barbels on the facial area. The dorsal fins are located very far back on the body. Five longitudinal lines of large osseous plates are found on the body of the fish. The stomach is yellow and the back is a brownish grey. This sturgeon can reach and in weight, but a more common length is .They can reach an age of 100 years, and have a late sex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biodiversity
Biodiversity or biological diversity is the variety and variability of life on Earth. Biodiversity is a measure of variation at the genetic (''genetic variability''), species (''species diversity''), and ecosystem (''ecosystem diversity'') level. Biodiversity is not distributed evenly on Earth; it is usually greater in the tropics as a result of the warm climate and high primary productivity in the region near the equator. Tropical forest ecosystems cover less than 10% of earth's surface and contain about 90% of the world's species. Marine biodiversity is usually higher along coasts in the Western Pacific, where sea surface temperature is highest, and in the mid-latitudinal band in all oceans. There are latitudinal gradients in species diversity. Biodiversity generally tends to cluster in hotspots, and has been increasing through time, but will be likely to slow in the future as a primary result of deforestation. It encompasses the evolutionary, ecological, and cultural ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lord's Prayer
The Lord's Prayer, also called the Our Father or Pater Noster, is a central Christian prayer which Jesus taught as the way to pray. Two versions of this prayer are recorded in the gospels: a longer form within the Sermon on the Mount in the Gospel of Matthew, and a shorter form in the Gospel of Luke when "one of his disciples said to him, 'Lord, teach us to pray, as John taught his disciples. Regarding the presence of the two versions, some have suggested that both were original, the Matthean version spoken by Jesus early in his ministry in Galilee, and the Lucan version one year later, "very likely in Judea". The first three of the seven petitions in Matthew address God; the other four are related to human needs and concerns. Matthew's account alone includes the "Your will be done" and the "Rescue us from the evil one" (or "Deliver us from evil") petitions. Both original Greek texts contain the adjective ''epiousios'', which does not appear in any other classical or Koine Greek ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sark Pierres De Lecq From Sorel Jersey
Sark (french: link=no, Sercq, ; Sercquiais: or ) is a part of the Channel Islands in the southwestern English Channel, off the coast of Normandy, France. It is a royal fief, which forms part of the Bailiwick of Guernsey, with its own set of laws based on Norman law and its own parliament. It has a population of about 500. Sark (including the nearby island of Brecqhou) has an area of . Little Sark is a peninsula joined by a natural but high and very narrow isthmus to the rest of Sark Island. Sark is one of the few remaining places in the world where cars are banned from roads and only tractors, bicycles and horse-drawn vehicles are allowed. In 2011, Sark was designated as a Dark Sky Community and the first Dark Sky Island in the world. Geography and geology Sark consists of two main parts, Greater Sark, located at about , and Little Sark to the south. They are connected by a narrow isthmus called La Coupée which is long and has a drop of on each side. Protective ra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tidal Range
Tidal range is the difference in height between high tide and low tide. Tides are the rise and fall of sea levels caused by gravitational forces exerted by the Moon and Sun and the rotation of Earth. Tidal range depends on time and location. Larger tidal range occur during spring tides (spring range), when the gravitational forces of both the Moon and Sun are aligned (at syzygy), reinforcing each other in the same direction ( new moon) or in opposite directions (full moon). The largest annual tidal range can be expected around the time of the equinox if it coincides with a spring tide. Spring tides occur at the second and fourth (last) quarters of the lunar phases. By contrast, during neap tides, when the Moon and Sun's gravitational force vectors act in quadrature (making a right angle to the Earth's orbit), the difference between high and low tides (neap range) is smallest. Neap tides occur at the first and third quarters of the lunar phases. Tidal data for coastal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
