Whales, whaling and ecosystem change in the Antarctic and Eastern Bering Sea: insights from ecosystem models
The question of whether species assemblages are controlled by food availability or by predators is a fundamental ecological question that has implications for biological conservation, mainte-nance of biodiversity, development of marine protected areas, and management of economically and culturally i...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.666.8656 2023-05-15T13:43:39+02:00 Whales, whaling and ecosystem change in the Antarctic and Eastern Bering Sea: insights from ecosystem models Andrew W. Trites Andrea P. Coombs Emma L. Bredesen The Pennsylvania State University CiteSeerX Archives 2004 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.666.8656 http://www.marinemammal.org/wp-content/pdfs/TritesCIESM2004.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.666.8656 http://www.marinemammal.org/wp-content/pdfs/TritesCIESM2004.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.marinemammal.org/wp-content/pdfs/TritesCIESM2004.pdf text 2004 ftciteseerx 2016-01-08T17:08:20Z The question of whether species assemblages are controlled by food availability or by predators is a fundamental ecological question that has implications for biological conservation, mainte-nance of biodiversity, development of marine protected areas, and management of economically and culturally important marine resources (Worm and Duffy, 2003). Increases in prey popula-tions following the removal of predators by fisheries have been taken as proof that top-down processes control marine ecosystems (e.g., Worm and Myers, 2003). Similar arguments have been used to justify perceived benefits of whaling to fisheries (e.g., Tamura, 2003), or to account for large scale ecosystem changes noted in the northern and southern hemispheres following the cessation of whaling (e.g., Knox, 1994; Springer et al., 2003). There is considerable uncertainty about the role that whales play in the ecosystem. Many of the large-scale changes noted in marine ecosystems have been attributed to the effects of human activities, especially commercial whaling. One such example is the compelling and eloquently simple hypothesis proposed by Springer et al. (2003) to explain a cascading series of population declines that began in the late 1970s in the Gulf of Alaska, Aleutian Islands and Bering Sea. The core of their argument is that killer whales (Orcinus orca) were forced to eat smaller marine Text Antarc* Antarctic Bering Sea Orca Orcinus orca Alaska Aleutian Islands Unknown Antarctic Bering Sea Gulf of Alaska Myers ENVELOPE(170.033,170.033,-72.117,-72.117) The Antarctic |
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English |
description |
The question of whether species assemblages are controlled by food availability or by predators is a fundamental ecological question that has implications for biological conservation, mainte-nance of biodiversity, development of marine protected areas, and management of economically and culturally important marine resources (Worm and Duffy, 2003). Increases in prey popula-tions following the removal of predators by fisheries have been taken as proof that top-down processes control marine ecosystems (e.g., Worm and Myers, 2003). Similar arguments have been used to justify perceived benefits of whaling to fisheries (e.g., Tamura, 2003), or to account for large scale ecosystem changes noted in the northern and southern hemispheres following the cessation of whaling (e.g., Knox, 1994; Springer et al., 2003). There is considerable uncertainty about the role that whales play in the ecosystem. Many of the large-scale changes noted in marine ecosystems have been attributed to the effects of human activities, especially commercial whaling. One such example is the compelling and eloquently simple hypothesis proposed by Springer et al. (2003) to explain a cascading series of population declines that began in the late 1970s in the Gulf of Alaska, Aleutian Islands and Bering Sea. The core of their argument is that killer whales (Orcinus orca) were forced to eat smaller marine |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Andrew W. Trites Andrea P. Coombs Emma L. Bredesen |
spellingShingle |
Andrew W. Trites Andrea P. Coombs Emma L. Bredesen Whales, whaling and ecosystem change in the Antarctic and Eastern Bering Sea: insights from ecosystem models |
author_facet |
Andrew W. Trites Andrea P. Coombs Emma L. Bredesen |
author_sort |
Andrew W. Trites |
title |
Whales, whaling and ecosystem change in the Antarctic and Eastern Bering Sea: insights from ecosystem models |
title_short |
Whales, whaling and ecosystem change in the Antarctic and Eastern Bering Sea: insights from ecosystem models |
title_full |
Whales, whaling and ecosystem change in the Antarctic and Eastern Bering Sea: insights from ecosystem models |
title_fullStr |
Whales, whaling and ecosystem change in the Antarctic and Eastern Bering Sea: insights from ecosystem models |
title_full_unstemmed |
Whales, whaling and ecosystem change in the Antarctic and Eastern Bering Sea: insights from ecosystem models |
title_sort |
whales, whaling and ecosystem change in the antarctic and eastern bering sea: insights from ecosystem models |
publishDate |
2004 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.666.8656 http://www.marinemammal.org/wp-content/pdfs/TritesCIESM2004.pdf |
long_lat |
ENVELOPE(170.033,170.033,-72.117,-72.117) |
geographic |
Antarctic Bering Sea Gulf of Alaska Myers The Antarctic |
geographic_facet |
Antarctic Bering Sea Gulf of Alaska Myers The Antarctic |
genre |
Antarc* Antarctic Bering Sea Orca Orcinus orca Alaska Aleutian Islands |
genre_facet |
Antarc* Antarctic Bering Sea Orca Orcinus orca Alaska Aleutian Islands |
op_source |
http://www.marinemammal.org/wp-content/pdfs/TritesCIESM2004.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.666.8656 http://www.marinemammal.org/wp-content/pdfs/TritesCIESM2004.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766191567726444544 |