Els ocells de la fi del món
12 pages, 10 figures, 1 table Antarctica has one of the most extreme environments of the planet. The Southern Ocean however, provides a moderate and constant temperature, and seasonally many light hours. Antarctic seabirds, therefore, are a particular case of seabirds. They have to travel long dista...
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Museu Comarcal del Maresme
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ftcsic:oai:digital.csic.es:10261/27073 2024-02-11T09:58:00+01:00 Els ocells de la fi del món Pedrós-Alió, Carlos 2005 5867 bytes application/pdf http://hdl.handle.net/10261/27073 ca cat Museu Comarcal del Maresme https://www.raco.cat/index.php/Atzavara/article/view/72891 L'Atzavara 13: 59-70 (2005) 0212-8993 http://hdl.handle.net/10261/27073 2339-9791 open artículo de periódico 2005 ftcsic 2024-01-16T09:28:03Z 12 pages, 10 figures, 1 table Antarctica has one of the most extreme environments of the planet. The Southern Ocean however, provides a moderate and constant temperature, and seasonally many light hours. Antarctic seabirds, therefore, are a particular case of seabirds. They have to travel long distances with low energy consumption, orient themselves and find the food sources dispersed as patches in a very wide and diluted ocean. They also must find appropriate snow-free areas to build nests and breed. Recent developments in instrumentation have revolutionized our understanding of their life at sea (up to 70% of the time in the case of albatrosses) and of their strategies to find food, as well as their diving and navigating capabilities. The number of species is relatively low. More than 800 species breed in the southern part of the South American, African and Australian continents. Only a few dozens do so in subantarctic islands. And only four nest exclusively or mostly in the Antarctic continent: the Emperor and Adelie penguins, the Antarctic Petrel and the Snow Petrel. Each one of these species has developed particular adaptations to take advantage of the constantly changing ice pack. Current increases in temperature due to global change are of concern for Antarctic seabird populations, especially those dependent on sea ice. Up to the present, however, trends in population abundances are different in separate areas of Antarctica. Further refinements in our knowledge of their ecology will be needed to ascertain their status. Peer reviewed Other/Unknown Material Antarc* Antarctic Antarctic Petrel Antarctica ice pack Sea ice Snow Petrel Southern Ocean Digital.CSIC (Spanish National Research Council) Antarctic Southern Ocean The Antarctic |
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Open Polar |
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Digital.CSIC (Spanish National Research Council) |
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ftcsic |
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Catalan |
description |
12 pages, 10 figures, 1 table Antarctica has one of the most extreme environments of the planet. The Southern Ocean however, provides a moderate and constant temperature, and seasonally many light hours. Antarctic seabirds, therefore, are a particular case of seabirds. They have to travel long distances with low energy consumption, orient themselves and find the food sources dispersed as patches in a very wide and diluted ocean. They also must find appropriate snow-free areas to build nests and breed. Recent developments in instrumentation have revolutionized our understanding of their life at sea (up to 70% of the time in the case of albatrosses) and of their strategies to find food, as well as their diving and navigating capabilities. The number of species is relatively low. More than 800 species breed in the southern part of the South American, African and Australian continents. Only a few dozens do so in subantarctic islands. And only four nest exclusively or mostly in the Antarctic continent: the Emperor and Adelie penguins, the Antarctic Petrel and the Snow Petrel. Each one of these species has developed particular adaptations to take advantage of the constantly changing ice pack. Current increases in temperature due to global change are of concern for Antarctic seabird populations, especially those dependent on sea ice. Up to the present, however, trends in population abundances are different in separate areas of Antarctica. Further refinements in our knowledge of their ecology will be needed to ascertain their status. Peer reviewed |
format |
Other/Unknown Material |
author |
Pedrós-Alió, Carlos |
spellingShingle |
Pedrós-Alió, Carlos Els ocells de la fi del món |
author_facet |
Pedrós-Alió, Carlos |
author_sort |
Pedrós-Alió, Carlos |
title |
Els ocells de la fi del món |
title_short |
Els ocells de la fi del món |
title_full |
Els ocells de la fi del món |
title_fullStr |
Els ocells de la fi del món |
title_full_unstemmed |
Els ocells de la fi del món |
title_sort |
els ocells de la fi del món |
publisher |
Museu Comarcal del Maresme |
publishDate |
2005 |
url |
http://hdl.handle.net/10261/27073 |
geographic |
Antarctic Southern Ocean The Antarctic |
geographic_facet |
Antarctic Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Antarctic Petrel Antarctica ice pack Sea ice Snow Petrel Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Petrel Antarctica ice pack Sea ice Snow Petrel Southern Ocean |
op_relation |
https://www.raco.cat/index.php/Atzavara/article/view/72891 L'Atzavara 13: 59-70 (2005) 0212-8993 http://hdl.handle.net/10261/27073 2339-9791 |
op_rights |
open |
_version_ |
1790593550755299328 |