Resultado de búsqueda
Antarctica (/ æ n ˈ t ɑːr k t ɪ k ə / ⓘ) is Earth's southernmost and least-populated continent. Situated almost entirely south of the Antarctic Circle and surrounded by the Southern Ocean (also known as the Antarctic Ocean), it contains the geographic South Pole.
- Geography
- Ecology
- Conservation
- Society
- See Also
- Further Reading
- External Links
As defined by the Antarctic Treaty System, the Antarctic region is everything south of the 60°S latitude. The Treaty area covers Antarctica and the archipelagos of the Balleny Islands, Peter I Island, Scott Island, the South Orkney Islands, and the South Shetland Islands. However, this area does not include the Antarctic Convergence, a transition z...
Antarctica
A variety of animals live in Antarctica for at least some of the year, including: 1. Seals 2. Penguins 3. South Georgia pipits 4. Albatrosses 5. Antarctic petrels 6. Whales 7. Fish, such as Antarctic icefish, Antarctic toothfish 8. Squid, including the colossal squid 9. Antarctic krill Most of the Antarctica continent is permanently covered by ice and snow, leaving less than 1 percent of the land exposed. There are only two species of flowering plant, Antarctic hair grass and Antarctic pearlw...
Sub-Antarctic Islands
Biodiversityamong terrestrial flora and fauna is low on the islands: studies have theorized that the harsh climate was a major contributor towards species richness, but multiple correlations have been found with area, temperature, remoteness of islands, and food chain stability. For example, herbivorous insects are poor in number due to low plant richness, and likewise, indigenous bird numbers are related to insects, which are a major food source. 1. Isla de los Estados (Argentina) 2. Isla Gr...
The Antarctic hosts the world's largest protected area comprising 1.07 million km2, the South Georgia and the South Sandwich Islands Marine Protection Area created in 2012. The latter exceeds the surface area of another vast protected territory, the Greenland National Park's 972,000 km2 (375,000 sq mi). (While the Ross Sea Marine Protection Area es...
People
The first recorded sighting of Antarctica is credited to the Spaniard Gabriel de Castilla, who reported seeing distant southern snow-capped mountains in 1603. The first Antarctic land discovered was the island of South Georgia, visited by the English merchant Anthony de la Roché in 1675. Although myths and speculation about a Terra Australis ("Southern Land") date back to antiquity, the first confirmed sighting of the continent of Antarctica is commonly accepted to have occurred in 1820 by th...
Time zones
Because Antarctica surrounds the South Pole, it is theoretically located in all time zones. For practical purposes, time zones are usually based on territorial claimsor the time zone of a station's owner country or supply base.
Krupnik, Igor; Michael A. Lang; Scott E. Miller (eds). Smithsonian at the Poles: Contributions to International Polar Year Science. Washington, D.C.: Smithsonian Institution Scholarly Press, 2009.
El continente antártico, ubicado en el hemisferio sur de la Tierra, está centrado asimétricamente alrededor del Polo Sur y en gran parte al sur del Círculo Antártico. Está bañada por el océano Antártico o, según la definición, los océanos Pacífico Sur, Atlántico e Índico. Tiene una superficie de más de 14.2 millones de km².
Historia de la Antártida. Bandera de la Antártida. La Antártida no cuenta con población nativa originaria, por lo tanto su historia humana no comienza sino hasta el siglo XIX, cuando el continente fue comprobadamente descubierto.
