New regional-scale surveys of the Adélie penguin breeding population in Prydz Bay: a step towards improved estimation of krill consumption in East Antarctica
Understanding circumpolar penguin abundance is critical for developing realistic ecosystem models that might be used to inform the management of impacts due to climate change or fisheries. A review of historical Adlie penguin survey data in east Antarctica revealed Prydz Bay as a priority region for...
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ftunivtasecite:oai:ecite.utas.edu.au:86498 2023-05-15T13:37:23+02:00 New regional-scale surveys of the Adélie penguin breeding population in Prydz Bay: a step towards improved estimation of krill consumption in East Antarctica Southwell, CJ McKinlay, J Newbery, K Emmerson, L Lieser, JL 2011 application/pdf http://ecite.utas.edu.au/86498 en eng CCAMLR http://ecite.utas.edu.au/86498/1/CCAMLR_WG-EMM-11.32.pdf Southwell, CJ and McKinlay, J and Newbery, K and Emmerson, L and Lieser, JL, New regional-scale surveys of the Adélie penguin breeding population in Prydz Bay: a step towards improved estimation of krill consumption in East Antarctica, CCAMLR Report of the Working Group on Ecosystem Monitoring and Management, 11 - 22 July 2011, Busan, Republic of Korea, pp. 199. (2011) [Conference Extract] http://ecite.utas.edu.au/86498 Earth Sciences Physical Geography and Environmental Geoscience Physical Geography and Environmental Geoscience not elsewhere classified Conference Extract NonPeerReviewed 2011 ftunivtasecite 2019-12-13T21:50:33Z Understanding circumpolar penguin abundance is critical for developing realistic ecosystem models that might be used to inform the management of impacts due to climate change or fisheries. A review of historical Adlie penguin survey data in east Antarctica revealed Prydz Bay as a priority region for new survey work to improve population estimates. Prydz Bay is considered to have the largest breeding population of Adlie penguins in east Antarctica but the most recent abundance survey was conducted 30 years ago. To understand current levels of prey consumption in east Antarctica it is therefore critical to understand if population numbers in Prydz Bay have changed in the past three decades. Accordingly, an aerial photography survey was undertaken in 2009/10. The survey used sample counts to estimate abundance for two sub-regions, comparative air and ground counts to assess detectability of penguins from the air, and data obtained from cameras to adjust counts to a point in the breeding chronology consistent with CEMP Standard Method A3. Recent abundance estimates are approximately double those obtained in the early 1980s. The new abundance estimates will significantly improve estimates of prey consumption by Adlie penguins in this region. Conference Object Antarc* Antarctica East Antarctica Prydz Bay eCite UTAS (University of Tasmania) East Antarctica Prydz Bay |
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eCite UTAS (University of Tasmania) |
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ftunivtasecite |
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English |
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Earth Sciences Physical Geography and Environmental Geoscience Physical Geography and Environmental Geoscience not elsewhere classified |
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Earth Sciences Physical Geography and Environmental Geoscience Physical Geography and Environmental Geoscience not elsewhere classified Southwell, CJ McKinlay, J Newbery, K Emmerson, L Lieser, JL New regional-scale surveys of the Adélie penguin breeding population in Prydz Bay: a step towards improved estimation of krill consumption in East Antarctica |
topic_facet |
Earth Sciences Physical Geography and Environmental Geoscience Physical Geography and Environmental Geoscience not elsewhere classified |
description |
Understanding circumpolar penguin abundance is critical for developing realistic ecosystem models that might be used to inform the management of impacts due to climate change or fisheries. A review of historical Adlie penguin survey data in east Antarctica revealed Prydz Bay as a priority region for new survey work to improve population estimates. Prydz Bay is considered to have the largest breeding population of Adlie penguins in east Antarctica but the most recent abundance survey was conducted 30 years ago. To understand current levels of prey consumption in east Antarctica it is therefore critical to understand if population numbers in Prydz Bay have changed in the past three decades. Accordingly, an aerial photography survey was undertaken in 2009/10. The survey used sample counts to estimate abundance for two sub-regions, comparative air and ground counts to assess detectability of penguins from the air, and data obtained from cameras to adjust counts to a point in the breeding chronology consistent with CEMP Standard Method A3. Recent abundance estimates are approximately double those obtained in the early 1980s. The new abundance estimates will significantly improve estimates of prey consumption by Adlie penguins in this region. |
format |
Conference Object |
author |
Southwell, CJ McKinlay, J Newbery, K Emmerson, L Lieser, JL |
author_facet |
Southwell, CJ McKinlay, J Newbery, K Emmerson, L Lieser, JL |
author_sort |
Southwell, CJ |
title |
New regional-scale surveys of the Adélie penguin breeding population in Prydz Bay: a step towards improved estimation of krill consumption in East Antarctica |
title_short |
New regional-scale surveys of the Adélie penguin breeding population in Prydz Bay: a step towards improved estimation of krill consumption in East Antarctica |
title_full |
New regional-scale surveys of the Adélie penguin breeding population in Prydz Bay: a step towards improved estimation of krill consumption in East Antarctica |
title_fullStr |
New regional-scale surveys of the Adélie penguin breeding population in Prydz Bay: a step towards improved estimation of krill consumption in East Antarctica |
title_full_unstemmed |
New regional-scale surveys of the Adélie penguin breeding population in Prydz Bay: a step towards improved estimation of krill consumption in East Antarctica |
title_sort |
new regional-scale surveys of the adélie penguin breeding population in prydz bay: a step towards improved estimation of krill consumption in east antarctica |
publisher |
CCAMLR |
publishDate |
2011 |
url |
http://ecite.utas.edu.au/86498 |
geographic |
East Antarctica Prydz Bay |
geographic_facet |
East Antarctica Prydz Bay |
genre |
Antarc* Antarctica East Antarctica Prydz Bay |
genre_facet |
Antarc* Antarctica East Antarctica Prydz Bay |
op_relation |
http://ecite.utas.edu.au/86498/1/CCAMLR_WG-EMM-11.32.pdf Southwell, CJ and McKinlay, J and Newbery, K and Emmerson, L and Lieser, JL, New regional-scale surveys of the Adélie penguin breeding population in Prydz Bay: a step towards improved estimation of krill consumption in East Antarctica, CCAMLR Report of the Working Group on Ecosystem Monitoring and Management, 11 - 22 July 2011, Busan, Republic of Korea, pp. 199. (2011) [Conference Extract] http://ecite.utas.edu.au/86498 |
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1766090993495441408 |