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Alejandro Selkirk Firecrown
The Alejandro Selkirk firecrown (''Sephanoides fernandensis leyboldi'') is an extinct subspecies of the Juan Fernández firecrown that lived on Alejandro Selkirk Island in the Juan Fernández Archipelago belonging to Chile. Taxonomy Most worldwide taxonomic systems accept this species as putative. However, a few authors question this subspecies and whether a firecrown ever existed on Alejandro Selkirk Island.Johow, Federico. (2007). El picaflor de la Isla de Masafuera: ¿subspecie extinta, nunca existió o mistery bird? / The Hummingbird of the Masafuera Island: extinct subspecies, never existed or Mystery Bird? Boletín Chileno de Ornitología 13: 28-41. n Spanish with English summary/ref> Extinction The Alejandro Selkirk firecrown may have went extinct due to deforestation, erosion and predation by introduced cats, rats, goats, and rabbits.Hume, Julian P. (2017): ''Extinct Birds''. Bloomsbury Publishing, 560 pages. It might have also competed with the introduction of plants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Gould
John Gould (; 14 September 1804 – 3 February 1881) was an English ornithologist who published monographs on birds, illustrated by plates produced by his wife, Elizabeth Gould (illustrator), Elizabeth Gould, and several other artists, including Edward Lear, Henry Constantine Richter, Joseph Wolf and William Matthew Hart. Because of his 1840s seven-volume series ''The Birds of Australia (Gould), The Birds of Australia'' and its updates he has been considered the father of bird study in Australia, and the Gould League in Australia is named after him. His identification of the birds now nicknamed "Darwin's finches" played a role in the inception of Darwin's theory of evolution by natural selection. Gould's work is referenced in Charles Darwin's book, ''On the Origin of Species''. Early life John Gould was born in Lyme Regis, the first son of a gardener. Both father and son probably had little education. After working on Dowager Lady Poulett's glass house, his father obtained ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extinction
Extinction is the termination of an organism by the death of its Endling, last member. A taxon may become Functional extinction, functionally extinct before the death of its last member if it loses the capacity to Reproduction, reproduce and recover. As a species' potential Range (biology), range may be very large, determining this moment is difficult, and is usually done retrospectively. This difficulty leads to phenomena such as Lazarus taxon, Lazarus taxa, where a species presumed extinct abruptly "reappears" (typically in the Fossil, fossil record) after a period of apparent absence. Over five billion species are estimated to have died out. It is estimated that there are currently around 8.7 million species of eukaryotes globally, possibly many times more if microorganisms are included. Notable extinct animal species include Dinosaur, non-avian dinosaurs, Machairodontinae, saber-toothed cats, and mammoths. Through evolution, species arise through the process of specia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Juan Fernández Firecrown
The Juan Fernández firecrown (''Sephanoides fernandensis'') is a critically endangered hummingbird in the "coquettes", tribe Lesbiini of subfamily Lesbiinae. It is endemic to Isla Róbinson Crusoe, one of the three-island Juan Fernández archipelago belonging to Chile.HBW and BirdLife International (2020) ''Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world'' Version 5. Available at: http://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v5_Dec20.zip xls zipped 1 MBretrieved May 27, 2021 Taxonomy and systematics The Juan Fernández firecrown shares genus ''Sephanoides'' with the green-backed firecrown (''S. sephaniodes''). It has one existing subspecies, the nominate ''S. f. fernandensis''. Most worldwide taxonomic systems attribute a second subspecies to it, the extinct ''S. f. leyboldi''. They list it as having occurred on another island in the Juan Fernández group, Alejandro Selkirk Island ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alejandro Selkirk Island
Alejandro Selkirk Island (), previously known as Más Afuera (Farther Out (to Sea)) and renamed after the marooned sailor Alexander Selkirk, is the largest and most westerly island in the Juan Fernández Archipelago of the Valparaíso Region of Chile. It is situated west of Robinson Crusoe Island in the southeastern Pacific Ocean. The Archipelago was home to the marooned sailor Alexander Selkirk from 1704 to 1709, and is thought to have inspired English novelist Daniel Defoe's fictional Robinson Crusoe in his 1719 novel about the character (although the novel is explicitly set in the Caribbean, not in the Juan Fernández Islands). This was just one of several survival stories from the period that Defoe would have been aware of. To reflect the literary lore associated with the island and attract tourists, the Chilean government renamed the place Alejandro Selkirk Island in 1966. Geography The island measures north–south and east–west, and has an area of . It is den ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Juan Fernández Islands
The Juan Fernández Islands () are a sparsely inhabited series of islands in the South Pacific Ocean, reliant on tourism and fishing. Situated off the coast of Chile, they are composed of three main volcanic islands: Robinson Crusoe Island, Robinson Crusoe, Alejandro Selkirk Island, Alejandro Selkirk, and Santa Clara Island, Santa Clara. The group is part of Insular Chile. The islands are primarily known for having been the home to the marooning, marooned sailor Alexander Selkirk for more than four years from 1704, which may have inspired English writer Daniel Defoe's ''Robinson Crusoe''. Most of the archipelago's present-day inhabitants reside on Robinson Crusoe Island, and mainly in the capital, San Juan Bautista, Chile, San Juan Bautista, located at Cumberland Bay on the island's north coast.The islands' area and population data retrieved from the 2012 census. The group of islands is part of Chile's Valparaíso Region (which also includes Easter Island) and, along with the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chile
Chile, officially the Republic of Chile, is a country in western South America. It is the southernmost country in the world and the closest to Antarctica, stretching along a narrow strip of land between the Andes, Andes Mountains and the Pacific Ocean. Chile had a population of 17.5 million as of the latest census in 2017 and has a territorial area of , sharing borders with Peru to the north, Bolivia to the northeast, Argentina to the east, and the Drake Passage to the south. The country also controls several Pacific islands, including Juan Fernández Islands, Juan Fernández, Isla Salas y Gómez, Desventuradas Islands, Desventuradas, and Easter Island, and claims about of Antarctica as the Chilean Antarctic Territory. The capital and largest city of Chile is Santiago, and the national language is Spanish language, Spanish. Conquest of Chile, Spain conquered and colonized the region in the mid-16th century, replacing Incas in Central Chile, Inca rule; however, they Arauco War ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isla Selkirk
Isla or ISLA may refer to: Organizations * International Securities Lending Association, a trade association * International School of Los Angeles * International Bilingual School, later named International School of Los Angeles People * Isla (given name) * Víctor Isla, Peruvian politician and a Congressman representing Loreto for the 2006–2011 term * Mauricio Isla, Chilean football player Music * Isla (Portico Quartet album), ''Isla'' (Portico Quartet album), a 2009 album by Portico Quartet Places *Isla, Queensland, a locality in the Shire of Banana, Australia * Mt. Izla, location of ancient Christian monasteries, on the border between Turkey and Syria * Isla (Cantabria), a village in the Spanish region of Cantabria * River Isla, Perthshire, a tributary of the River Tay in Perthshire, Scotland; flows through Glen Isla and Strathmore * River Isla, Moray a tributary of the River Deveron in North-East Scotland; flows through Keith in Banffshire * Senglea, Isla (Senglea), a f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deforestation
Deforestation or forest clearance is the removal and destruction of a forest or stand of trees from land that is then converted to non-forest use. Deforestation can involve conversion of forest land to farms, ranches, or urban use. About 31% of Earth's land surface is covered by forests at present. This is one-third less than the forest cover before the expansion of agriculture, with half of that loss occurring in the last century. Between 15 million to 18 million hectares of forest, an area the size of Bangladesh, are destroyed every year. On average 2,400 trees are cut down each minute. Estimates vary widely as to the extent of deforestation in the tropics. In 2019, nearly a third of the overall tree cover loss, or 3.8 million hectares, occurred within humid tropical primary forests. These are areas of mature rainforest that are especially important for biodiversity and carbon storage. The direct cause of most deforestation is agriculture by far. More than ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Erosion
Erosion is the action of surface processes (such as Surface runoff, water flow or wind) that removes soil, Rock (geology), rock, or dissolved material from one location on the Earth's crust#Crust, Earth's crust and then sediment transport, transports it to another location where it is deposit (geology), deposited. Erosion is distinct from weathering which involves no movement. Removal of rock or soil as clastic sediment is referred to as ''physical'' or ''mechanical'' erosion; this contrasts with ''chemical'' erosion, where soil or rock material is removed from an area by Solvation, dissolution. Eroded sediment or solutes may be transported just a few millimetres, or for thousands of kilometres. Agents of erosion include rainfall; bedrock wear in rivers; coastal erosion by the sea and Wind wave, waves; glacier, glacial Plucking (glaciation), plucking, Abrasion (geology), abrasion, and scour; areal flooding; Aeolian processes, wind abrasion; groundwater processes; and Mass wastin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Predation
Predation is a biological interaction in which one organism, the predator, kills and eats another organism, its prey. It is one of a family of common List of feeding behaviours, feeding behaviours that includes parasitism and micropredation (which usually do not kill the Host (biology), host) and parasitoidism (which always does, eventually). It is distinct from Scavenger, scavenging on dead prey, though many predators also scavenge; it overlaps with Herbivore, herbivory, as Seed predation, seed predators and destructive frugivores are predators. Predation behavior varies significantly depending on the organism. Many predators, especially carnivores, have evolved distinct hunting strategy, hunting strategies. Pursuit predation involves the active search for and pursuit of prey, whilst ambush predation, ambush predators instead wait for prey to present an opportunity for capture, and often use stealth or aggressive mimicry. Other predators are opportunism, opportunistic or om ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Luma Apiculata
''Luma apiculata'', the Chilean myrtle, ''arrayán'' or ''temu'', is a species of flowering plant in the myrtle family, native to the central Andes between Chile and Argentina, at 33 to 45° south latitude. Growing to tall and wide, it is a vigorous, bushy, evergreen tree with fragrant flowers. Description The Chilean myrtle grows slowly, forming a small tree of around 10 to 15 m, rarely 20 m. Its trunk appears twisted and contorted and has smooth bark, coloured grey to bright orange-brown, which peels as the tree grows - giving a two-tone appearance of rich cinnamon colour, contrasted with cream. It is evergreen, with small, fragrant, oval leaves 2.0 to 2.5 cm long and 1.5 broad, and profuse white flowers in early to midsummer. Its fruit is an edible black or blue berry 1.0 cm in diameter, ripe in early autumn. Names and synonyms Synonyms include ''Eugenia apiculata'' DC., ''Myrceugenia apiculata'' (DC.) Niedenzu, and ''Myrceugenella apiculata'' (DC.) Kausel. Common n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Green-backed Firecrown
The green-backed firecrown (''Sephanoides sephaniodes'') is a hummingbird in the "coquettes", tribe Lesbiini of subfamily Lesbiinae. It is found in Argentina, mainland Chile, and the Juan Fernández Islands.HBW and BirdLife International (2020) ''Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world'' Version 5. Available at: http://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v5_Dec20.zip xls zipped 1 MBretrieved May 27, 2021Clements, J. F., T. S. Schulenberg, M. J. Iliff, S. M. Billerman, T. A. Fredericks, J. A. Gerbracht, D. Lepage, B. L. Sullivan, and C. L. Wood. 2021. The eBird/Clements checklist of Birds of the World: v2021. Downloaded from https://www.birds.cornell.edu/clementschecklist/download/ Retrieved August 25, 2021 Taxonomy and systematics The green-backed firecrown is monotypic. It shares its genus only with the Juan Fernandez firecrown (''S. fernandensis''). The specific epi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
