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Ecosystems Studies
Mexico
Приєднався 25 гру 2023
Ecosystems Studies An ecosystem (or ecological system) is a system that environments and their organisms form through their interaction.[2]: 458 The biotic and abiotic components are linked together through nutrient cycles and energy flows.
Coral reefs are a highly productive marine ecosystem.
Left: Coral reef ecosystems are highly productive marine systems.[1] Right: Temperate rainforest, a terrestrial ecosystem.
Ecosystems are controlled by external and internal factors. External factors such as climate, parent material which forms the soil and topography, control the overall structure of an ecosystem but are not themselves influenced by the ecosystem. Internal factors are controlled, for example, by decomposition, root competition, shading, disturbance, succession, and the types of species present. While the resource inputs are generally controlled by external processes, the availability of these resources within the ecosystem
Coral reefs are a highly productive marine ecosystem.
Left: Coral reef ecosystems are highly productive marine systems.[1] Right: Temperate rainforest, a terrestrial ecosystem.
Ecosystems are controlled by external and internal factors. External factors such as climate, parent material which forms the soil and topography, control the overall structure of an ecosystem but are not themselves influenced by the ecosystem. Internal factors are controlled, for example, by decomposition, root competition, shading, disturbance, succession, and the types of species present. While the resource inputs are generally controlled by external processes, the availability of these resources within the ecosystem
Strong Predator NEW KING Dinosaur
Iguanodon (/ɪˈɡwɑːnədɒn/ i-GWAH-nə-don; meaning 'iguana-tooth'), named in 1825, is a genus of iguanodontian dinosaur. While many species found worldwide have been classified in the genus Iguanodon, dating from the Late Jurassic to Early Cretaceous, taxonomic revision in the early 21st century has defined Iguanodon to be based on one well-substantiated species: I. bernissartensis, which lived during the Barremian to early Aptian ages of the Early Cretaceous in Belgium, Germany, England, and Spain, between about 126 and 122 million years ago. Iguanodon was a large, bulky herbivore, measuring up to 9-11 metres (30-36 ft) in length and 4.5 metric tons (5.0 short tons) in body mass. Distinctive features include large thumb spikes, which were possibly used for defense against predators, combined with long prehensile fifth fingers able to forage for food.
Iguanodon
Temporal range: Early Cretaceous (Barremian) 126-122 Ma
PreꞒꞒOSDCPTJKPgN
↓
I. bernissartensis mounted in modern quadrupedal posture, Royal Belgian Institute of Natural Sciences, Brussels
Scientific classificationEdit this classification
Domain:
Eukaryota
Kingdom:
Animalia
Phylum:
Chordata
Clade:
Dinosauria
Clade:
†Ornithischia
Clade:
†Neornithischia
Clade:
†Ornithopoda
Family:
†Iguanodontidae
Genus:
†Iguanodon
Mantell, 1825[1]
Type species
†Iguanodon bernissartensis
Boulenger in Beneden, 1881
Other species
†I. anglicus Holl, 1829 (nomen dubium)
†I. galvensis Verdú et al., 2015[2]
Synonyms
Delapparentia turolensis
Ruiz-Omeñaca, 2011[3]
The genus was named in 1825 by English geologist Gideon Mantell, based on fossil specimens found in England and was given the species name I. anglicus. Iguanodon was the second type of dinosaur formally named based on fossil specimens, after Megalosaurus. Together with Megalosaurus and Hylaeosaurus, it was one of the three genera originally used to define Dinosauria. The genus Iguanodon belongs to the larger group Iguanodontia, along with the duck-billed hadrosaurs. The taxonomy of this genus continues to be a topic of study as new species are named or long-standing ones reassigned to other genera.
In 1878 new, far more complete remains of Iguanodon were discovered in Belgium and studied by Louis Dollo. These were given the new species I. bernissartensis. In the early 21st century it became understood that the remains referred to as Iguanodon in England belonged to four different species (including I. bernissartensis) that were not closely related to each other, which were subsequently split off into Mantellisaurus, Barilium and Hypselospinus. It was also found that the originally described type species of Iguanodon, I. anglicus is now a nomen dubium, and not valid. Thus the name "Iguanodon" became fixed around the well known species based primarily on the Belgian specimens. In 2015, a second valid species, I. galvensis, was named, based on fossils found in the Iberian Peninsula
Iguanodon
Temporal range: Early Cretaceous (Barremian) 126-122 Ma
PreꞒꞒOSDCPTJKPgN
↓
I. bernissartensis mounted in modern quadrupedal posture, Royal Belgian Institute of Natural Sciences, Brussels
Scientific classificationEdit this classification
Domain:
Eukaryota
Kingdom:
Animalia
Phylum:
Chordata
Clade:
Dinosauria
Clade:
†Ornithischia
Clade:
†Neornithischia
Clade:
†Ornithopoda
Family:
†Iguanodontidae
Genus:
†Iguanodon
Mantell, 1825[1]
Type species
†Iguanodon bernissartensis
Boulenger in Beneden, 1881
Other species
†I. anglicus Holl, 1829 (nomen dubium)
†I. galvensis Verdú et al., 2015[2]
Synonyms
Delapparentia turolensis
Ruiz-Omeñaca, 2011[3]
The genus was named in 1825 by English geologist Gideon Mantell, based on fossil specimens found in England and was given the species name I. anglicus. Iguanodon was the second type of dinosaur formally named based on fossil specimens, after Megalosaurus. Together with Megalosaurus and Hylaeosaurus, it was one of the three genera originally used to define Dinosauria. The genus Iguanodon belongs to the larger group Iguanodontia, along with the duck-billed hadrosaurs. The taxonomy of this genus continues to be a topic of study as new species are named or long-standing ones reassigned to other genera.
In 1878 new, far more complete remains of Iguanodon were discovered in Belgium and studied by Louis Dollo. These were given the new species I. bernissartensis. In the early 21st century it became understood that the remains referred to as Iguanodon in England belonged to four different species (including I. bernissartensis) that were not closely related to each other, which were subsequently split off into Mantellisaurus, Barilium and Hypselospinus. It was also found that the originally described type species of Iguanodon, I. anglicus is now a nomen dubium, and not valid. Thus the name "Iguanodon" became fixed around the well known species based primarily on the Belgian specimens. In 2015, a second valid species, I. galvensis, was named, based on fossils found in the Iberian Peninsula
Переглядів: 84
Відео
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An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching, invasive species, and climate change.[1] The International Union for Conservation of Nature (IUCN) Red List lists the global conservation status of many species, a...
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Sharks are a group of elasmobranch fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha[1] (or Selachii) and are the sister group to the Batoidea (rays and kin). Some sources extend the term "shark" as an informal category including extinct ...
WHY this ANIMALS is extreme ENDANGERED
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An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching, invasive species, and climate change.[1] The International Union for Conservation of Nature (IUCN) Red List lists the global conservation status of many species, a...
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