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Ebro Delta
The Ebro Delta ( ca, Delta de l'Ebre, ; es, Delta del Ebro, ) is the delta region of the Ebro River ( ca, Ebre, links=no, es, Ebro, links=no) in the southwest of the Province of Tarragona in the region of Catalonia in Spain. It is located on the Mediterranean Sea, and is the northernmost point, by some designations, of the Gulf of Valencia. Its location per Ramsar site designation is . Geography The Ebro Delta is one of the largest wetland areas in the western Mediterranean region, at .Ebro.info: Ebro Delta Natural Park . accessed 5.22.2011 The Ebro delta has expanded ra ... [...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] |
Invasive Species
An invasive species otherwise known as an alien is an introduced organism that becomes overpopulated and harms its new environment. Although most introduced species are neutral or beneficial with respect to other species, invasive species adversely affect habitats and bioregions, causing ecological, environmental, and/or economic damage. The term can also be used for native species that become harmful to their native environment after human alterations to its food webfor example the purple sea urchin (''Strongylocentrotus purpuratus'') which has decimated kelp forests along the northern California coast due to overharvesting of its natural predator, the California sea otter (''Enhydra lutris''). Since the 20th century, invasive species have become a serious economic, social, and environmental threat. Invasion of long-established ecosystems by organisms is a natural phenomenon, but human-facilitated introductions have greatly increased the rate, scale, and geographic range of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Columbia Encyclopedia
The ''Columbia Encyclopedia'' is a one-volume encyclopedia produced by Columbia University Press and, in the last edition, sold by the Gale Group. First published in 1935, and continuing its relationship with Columbia University, the encyclopedia underwent major revisions in 1950 and 1963; the current edition is the sixth, printed in 2000. It contains over 51,000 articles totaling some 6.5 million words and has also been published in two volumes. An electronic version of the encyclopedia is available, and the ''Columbia Encyclopedia'' is licensed by several different companies for use over the Internet. See also *''Lincoln Library of Essential Information'' * Lists of encyclopedias For lists of encyclopedias, see: * List of encyclopedias by branch of knowledge * List of encyclopedias by date * List of encyclopedias by language * List of online encyclopedias See also * Bibliography of encyclopedias * List of almanacs * ... * List of online encyclopedias References ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calasparra
Calasparra () is a municipality in the autonomous community of Murcia, Spain. It shares borders with Cieza, Mula, Cehegín, Moratalla and province of Albacete. History There were people living in Calasparra during the Bronze and Iron Ages. The present-day municipality was also occupied by people during the Roman Iberian Peninsula era as largely attested by several ceramic remains. There is archaeological evidence of the presence of people during the Muslim Iberian Peninsula era in the territory. A remarkable site is Villa Vieja or Despoblado de Villa Vieja, which consists of an ancient hamlet. Since the Moors' conquest of the Iberian Peninsula, there was an aspiration from some Christian kingdoms to conquer the Peninsula. The aspiration led to wars and also resulted in the acquisition of territories for the Christian kingdoms. The Kingdom of Castile obtained the Taifa of Murcia, the region where Calasparra was, in 1243 because the king of the Taifa felt under pressure and st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bomba Rice
Bomba rice ( es, arroz bomba; va, arròs bomba) is a short-grain variety of rice (''Oryza sativa'' L.), primarily cultivated in the eastern parts of Spain. It is commonly used in paella and other dishes in Valencian cuisine, and is often referred to as Valencia rice. It has short grains due to the presence of amylopectin. Characteristics Bomba rice is believed to have originated from an Indian variety which was brought to the Iberian Peninsula via the Middle East. It is known for its nonstick properties due to its high amylose content. It is short grained with a pearly white color and a uniform consistency. One important property of bomba is its ability to absorb two or three times its volume in water without bursting. As a result, more water is needed to cook bomba than other similar varieties, and the grains of rice tend to hold their structure well after cooking. Bomba is one of the most expensive varieties of rice from Spain, especially the '' Denominación de Origen'' (D. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Rivers Of Spain
This is an incomplete list of rivers that are at least partially in Spain. The rivers flowing into the sea are sorted along the coast. Rivers flowing into other rivers are listed by the rivers they flow into. Rivers in the mainland Iberian Peninsula can be divided into those belonging to the Mediterranean watershed, those flowing into the Atlantic Ocean and those emptying into the Cantabrian sea (a marginal sea of the Atlantic off the northern coast of the Iberian peninsula). Tributaries are listed down the page in an downstream direction. The main stem river of a catchment is labelled as , left-bank tributaries are indicated by , right-bank tributaries by . Where a named river derives from the confluence of two differently named rivers these are labelled as and for the left and right forks (the rivers on the left and right, relative to an observer facing downstream). The transboundary rivers partially running through Portugal or France and/or along the borders of Spain with thos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Estuary
An estuary is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea. Estuaries form a transition zone between river environments and maritime environments and are an example of an ecotone. Estuaries are subject both to marine influences such as tides, waves, and the influx of saline water, and to fluvial influences such as flows of freshwater and sediment. The mixing of seawater and freshwater provides high levels of nutrients both in the water column and in sediment, making estuaries among the most productive natural habitats in the world. Most existing estuaries formed during the Holocene epoch with the flooding of river-eroded or glacially scoured valleys when the sea level began to rise about 10,000–12,000 years ago. Estuaries are typically classified according to their geomorphological features or to water-circulation patterns. They can have many different names, such as bays, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Audouin's Gull
Audouin's gull (''Ichthyaetus audouinii'') is a large gull restricted to the Mediterranean and the western coast of Saharan Africa and the Iberian Peninsula. The genus name is from Ancient Greek ''ikhthus'', "fish", and ''aetos'', "eagle", and the specific ''audouinii'' and the English name are after the French naturalist Jean Victoire Audouin. It breeds on small islands colonially or alone, laying 2–3 eggs on a ground nest. As is the case with many gulls, it has traditionally been placed in the genus ''Larus''. In the late 1960s, this was one of the world's rarest gulls, with a population of only 1,000 pairs. It has established new colonies, but remains rare with a population of about 10,000 pairs. This species, unlike many large gulls, rarely scavenges, but is a specialist fish eater, and is therefore strictly coastal and pelagic. This bird will feed at night, often well out to sea, but also slowly patrols close into beaches, occasionally dangling its legs to increase drag. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Waterfowl
Anseriformes is an order of birds also known as waterfowl that comprises about 180 living species of birds in three families: Anhimidae (three species of screamers), Anseranatidae (the magpie goose), and Anatidae, the largest family, which includes over 170 species of waterfowl, among them the ducks, geese, and swans. Most modern species in the order are highly adapted for an aquatic existence at the water surface. With the exception of screamers, males have penises, a trait that has been lost in the Neoaves. Due to their aquatic nature, most species are web-footed. Evolution Anseriformes are one of only two types of modern bird to be confirmed present during the Mesozoic alongside the other dinosaurs, and in fact were among the very few birds to survive their extinction, along with their cousins the galliformes. These two groups only occupied two ecological niches during the Mesozoic, living in water and on the ground, while the toothed enantiornithes were the dominant bird ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bird Migration
Bird migration is the regular seasonal movement, often north and south along a flyway, between breeding and wintering grounds. Many species of bird migrate. Migration carries high costs in predation and mortality, including from hunting by humans, and is driven primarily by the availability of food. It occurs mainly in the northern hemisphere, where birds are funneled onto specific routes by natural barriers such as the Mediterranean Sea or the Caribbean Sea. Migration of species such as storks, turtle doves, and swallows was recorded as many as 3,000 years ago by Ancient Greek authors, including Homer and Aristotle, and in the Book of Job. More recently, Johannes Leche began recording dates of arrivals of spring migrants in Finland in 1749, and modern scientific studies have used techniques including bird ringing and satellite tracking to trace migrants. Threats to migratory birds have grown with habitat destruction, especially of stopover and wintering sites, as wel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Habitat
In ecology, the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical manifestation of its ecological niche. Thus "habitat" is a species-specific term, fundamentally different from concepts such as environment or vegetation assemblages, for which the term "habitat-type" is more appropriate. The physical factors may include (for example): soil, moisture, range of temperature, and light intensity. Biotic factors will include the availability of food and the presence or absence of predators. Every species has particular habitat requirements, with habitat generalist species able to thrive in a wide array of environmental conditions while habitat specialist species requiring a very limited set of factors to survive. The habitat of a species is not necessarily found in a geographical area, it can be the interior ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Estuary
An estuary is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea. Estuaries form a transition zone between river environments and maritime environments and are an example of an ecotone. Estuaries are subject both to marine influences such as tides, waves, and the influx of saline water, and to fluvial influences such as flows of freshwater and sediment. The mixing of seawater and freshwater provides high levels of nutrients both in the water column and in sediment, making estuaries among the most productive natural habitats in the world. Most existing estuaries formed during the Holocene epoch with the flooding of river-eroded or glacially scoured valleys when the sea level began to rise about 10,000–12,000 years ago. Estuaries are typically classified according to their geomorphological features or to water-circulation patterns. They can have many different names, such as bays, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.JPG "Click for more on -> Habitat")
