Results 211 to 220 of about 18,025 (263)
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1973
Since Darwin’s observations during the voyage of the Beagle (1831–1836), the islands of the South Atlantic have figured prominently in the geologic exploration of the ocean basins. The small number of widely scattered islands considered here extend from the Tropic of Cancer to the Southern Ocean (Fig.
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Since Darwin’s observations during the voyage of the Beagle (1831–1836), the islands of the South Atlantic have figured prominently in the geologic exploration of the ocean basins. The small number of widely scattered islands considered here extend from the Tropic of Cancer to the Southern Ocean (Fig.
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MELANIC BLACKCAPS IN THE ATLANTIC ISLANDS.
Ibis, 1951SUMMARY.1. The blackcap Sylvia atricapilkz is resident on the Cape Verdes, the Azores, Madeira and the Canaries, and birds of the last two have been separated as a local endemic race, S. a. obscura, distinguished by darker plumage.2. On Madeira and the Canaries the blackcap occupies mainly the cultivated and settled zones, so that their numbers must ...
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Ecological Speciation in South Atlantic Island Finches
Science, 2007Examples of sympatric speciation in nature are rare and hotly debated. We describe the parallel speciation of finches on two small islands in the Tristan da Cunha archipelago in the South Atlantic Ocean. Nesospiza buntings are a classic example of a simple adaptive radiation, with two species on each island: an ...
Peter G, Ryan +4 more
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Canary Islands and Atlantic Tsunamis
Science, 2001GEOLOGY Recently, giant submarine landslides, including some more than 20 kilometers long, have been recognized around Hawaii. Some slides may be responsible for generating large Pacific Ocean tsunamis. Krastel et al. have now identified a large number of submarine slides in the Canary Islands in the central Atlantic Ocean off the coast of Africa. Like
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Portugal and the Portuguese Atlantic Islands
1997Publisher Summary This chapter discusses the localization, frequency and seriousness of potential hazards for the seismic hazards, volcanic hazards, mass movements, river flooding and coastal erosion in Portugal and the Portuguese Atlantic Islands. The Portuguese mainland and its southern part is located close to the Azores–Gibraltar plate boundary ...
António de Brum Ferreira +1 more
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Iceland—An Island in the North Atlantic
2018Iceland, a 103,000 km2 island, meets the Green Sea to the north, the Norwegian Sea on the east and mainly the Atlantic Ocean on the south and west. The Greenland Strait lies between the southeast of Greenland and the northwest. Jan Mayen, a Norwegian island, is situated northeast of the strait.
Wolfgang Fraedrich, Neli Heidari
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An Island Archaeology of the Viking Expansion in the North Atlantic
Terra Incognita, 2006Island archaeology emerged in the 1970’s from biogeographical and anthropological island studies. Despite the amount of archaeological research on islands, and notwithstanding some attention on a theoretical level for island communities, up to the present day no coherent theoretical framework exists within which to systematically study the archaeology ...
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Ciguatera Fish Poisoning in the Caribbean Islands and Western Atlantic
2001Ciguatera fish poisoning (ciguatera), a common poisoning caused by fish ingestion, is reviewed in the Western Atlantic and the Caribbean waters. It is endemic from Florida coasts (northern limit) to Martinique Island (southern limit), with outbreaks occurring from time to time.
Pottier, Ivannah +2 more
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Spiders from Beauchêne Island, Falkland Islands, South Atlantic
Journal of Zoology, 1983A collection of 55 spiders, which was made on Beauchêne Island, Falkland Islands archipelago, in December 1980, contains seven species. Three of these are known from the main body of the Falkland Islands, one is a new subspecies of a species previously known from Patagonia and Tierra del Fuego, and the remaining three are endemic to Beauchêne Island ...
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