the most unique environments on Earth. Although the Antarctic food web is diverse, it is characterized by short trophic linkages that are domi-nated by fewer than four to six species. These short trophic connections arise because the basic prey types available to predators are limited, with Antarcti...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.464.9406 2023-05-15T13:57:44+02:00 The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.464.9406 http://www.usglobec.org/reports/tos-files/lagle64-74.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.464.9406 http://www.usglobec.org/reports/tos-files/lagle64-74.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.usglobec.org/reports/tos-files/lagle64-74.pdf text ftciteseerx 2016-01-08T06:51:12Z the most unique environments on Earth. Although the Antarctic food web is diverse, it is characterized by short trophic linkages that are domi-nated by fewer than four to six species. These short trophic connections arise because the basic prey types available to predators are limited, with Antarctic krill (Euphausia superba) serving as a primary prey. As a result, predators concentrate on a sin-gle prey, such as Antarctic krill, or on a core group of species, such as other euphausiids and some fish. Thus, envi-ronmental or biological perturbations can potentially affect all components of the Antarctic marine ecosystem irre-spective of their initial impact. The knowledge base on which predictions about potential trophic changes that might be expected from climate and population variations is very limited. In particular, lit-tle is known about how marine animal populations adapt to austral winter, which is a critical part of many life cycles. It is the strong linkage to climate and close cou-pling between trophic levels that resulted in the choice of the Southern Ocean as one of the first study sites for the Global Ocean Ecosystems Dynamics (GLOBEC) program, which has the goal of understanding marine population variability in response to environmental change. The primary objective of the Southern Ocean GLOBEC (SO GLOBEC) program is to understand the physical and biological factors that contribute to enhanced Antarctic krill growth, reproduction, recruit- Text Antarc* Antarctic Antarctic Krill Euphausia superba Southern Ocean Unknown Antarctic Austral Southern Ocean The Antarctic |
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Open Polar |
collection |
Unknown |
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ftciteseerx |
language |
English |
description |
the most unique environments on Earth. Although the Antarctic food web is diverse, it is characterized by short trophic linkages that are domi-nated by fewer than four to six species. These short trophic connections arise because the basic prey types available to predators are limited, with Antarctic krill (Euphausia superba) serving as a primary prey. As a result, predators concentrate on a sin-gle prey, such as Antarctic krill, or on a core group of species, such as other euphausiids and some fish. Thus, envi-ronmental or biological perturbations can potentially affect all components of the Antarctic marine ecosystem irre-spective of their initial impact. The knowledge base on which predictions about potential trophic changes that might be expected from climate and population variations is very limited. In particular, lit-tle is known about how marine animal populations adapt to austral winter, which is a critical part of many life cycles. It is the strong linkage to climate and close cou-pling between trophic levels that resulted in the choice of the Southern Ocean as one of the first study sites for the Global Ocean Ecosystems Dynamics (GLOBEC) program, which has the goal of understanding marine population variability in response to environmental change. The primary objective of the Southern Ocean GLOBEC (SO GLOBEC) program is to understand the physical and biological factors that contribute to enhanced Antarctic krill growth, reproduction, recruit- |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.464.9406 http://www.usglobec.org/reports/tos-files/lagle64-74.pdf |
geographic |
Antarctic Austral Southern Ocean The Antarctic |
geographic_facet |
Antarctic Austral Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Antarctic Krill Euphausia superba Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Krill Euphausia superba Southern Ocean |
op_source |
http://www.usglobec.org/reports/tos-files/lagle64-74.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.464.9406 http://www.usglobec.org/reports/tos-files/lagle64-74.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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