The Physiological Ecology of Two Antarctic Icons: Emperor Penguins and Leopard Seals
Abstract: Emperor penguins (Aptenodytes forsteri) and leopard seals (Hydrurga leptonyx) are iconic, top predators in Antarctica. Understanding their physiological ecology is essential to the assessment of their adaptability to the threats of climate change, pollution, and overfishing. The proposed r...
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IEDA: US Antarctic Program Data Center
2014
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dataone:http://get.iedadata.org/metadata/iso/600113 2024-06-03T18:46:24+00:00 The Physiological Ecology of Two Antarctic Icons: Emperor Penguins and Leopard Seals Ponganis, Paul ENVELOPE(-160.0,-150.0,-68.0,-78.0) BEGINDATE: 2010-09-01T00:00:00Z ENDDATE: 2014-08-31T00:00:00Z 2014-01-01T00:00:00Z http://get.iedadata.org/metadata/iso/600113 unknown IEDA: US Antarctic Program Data Center Electrocardiogram Penguin Antarctic Organisms and Ecosystems Biology Antarctica Southern Ocean Biosphere US Antarctic Program Data Center (USAP-DC) Dataset 2014 dataone:urn:node:IEDA_USAP 2024-06-03T18:11:58Z Abstract: Emperor penguins (Aptenodytes forsteri) and leopard seals (Hydrurga leptonyx) are iconic, top predators in Antarctica. Understanding their physiological ecology is essential to the assessment of their adaptability to the threats of climate change, pollution, and overfishing. The proposed research has multipronged objectives. Prior results suggest that Emperor penguins have flexible (vs. static) aerobic dive limits (ADL) that vary with the type of dive, and that the role of heart rate in utilization of oxygen stores also varies with dive type. A series of physiological measurements are proposed with backpack electrocardiogram recorders, that will allow further delineation of patterns and interrelationships among heart rate, dive behavior, and oxygen stores. Importantly, the research will be done on free diving emperors, and not individuals confined to a dive hole, thereby providing a more genuine measure of diving physiology and behavior. A separate objective is to examine foraging behavior of leopard seals, using a backpack digital camera and time depth recorder. Leopard seal behavior and prey intake is poorly quantified, but known to be significant. Accordingly the research is somewhat exploratory but will provide important baseline data. Finally, the P.I. proposes to continue long term overflight censuses of Emperor penguin colonies in the Ross Sea. Broader impacts include collaboration with National Geographic television, graduate student training, and development of sedation techniques for leopard seals. Dataset Antarc* Antarctic Antarctica Aptenodytes forsteri Emperor penguins Hydrurga leptonyx Leopard Seal Leopard Seals Ross Sea Southern Ocean IEDA: US Antarctic Program Data Center (via DataONE) Antarctic Hydrurga ENVELOPE(-61.626,-61.626,-64.145,-64.145) Ross Sea Southern Ocean ENVELOPE(-160.0,-150.0,-68.0,-78.0) |
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Open Polar |
collection |
IEDA: US Antarctic Program Data Center (via DataONE) |
op_collection_id |
dataone:urn:node:IEDA_USAP |
language |
unknown |
topic |
Electrocardiogram Penguin Antarctic Organisms and Ecosystems Biology Antarctica Southern Ocean Biosphere US Antarctic Program Data Center (USAP-DC) |
spellingShingle |
Electrocardiogram Penguin Antarctic Organisms and Ecosystems Biology Antarctica Southern Ocean Biosphere US Antarctic Program Data Center (USAP-DC) Ponganis, Paul The Physiological Ecology of Two Antarctic Icons: Emperor Penguins and Leopard Seals |
topic_facet |
Electrocardiogram Penguin Antarctic Organisms and Ecosystems Biology Antarctica Southern Ocean Biosphere US Antarctic Program Data Center (USAP-DC) |
description |
Abstract: Emperor penguins (Aptenodytes forsteri) and leopard seals (Hydrurga leptonyx) are iconic, top predators in Antarctica. Understanding their physiological ecology is essential to the assessment of their adaptability to the threats of climate change, pollution, and overfishing. The proposed research has multipronged objectives. Prior results suggest that Emperor penguins have flexible (vs. static) aerobic dive limits (ADL) that vary with the type of dive, and that the role of heart rate in utilization of oxygen stores also varies with dive type. A series of physiological measurements are proposed with backpack electrocardiogram recorders, that will allow further delineation of patterns and interrelationships among heart rate, dive behavior, and oxygen stores. Importantly, the research will be done on free diving emperors, and not individuals confined to a dive hole, thereby providing a more genuine measure of diving physiology and behavior. A separate objective is to examine foraging behavior of leopard seals, using a backpack digital camera and time depth recorder. Leopard seal behavior and prey intake is poorly quantified, but known to be significant. Accordingly the research is somewhat exploratory but will provide important baseline data. Finally, the P.I. proposes to continue long term overflight censuses of Emperor penguin colonies in the Ross Sea. Broader impacts include collaboration with National Geographic television, graduate student training, and development of sedation techniques for leopard seals. |
format |
Dataset |
author |
Ponganis, Paul |
author_facet |
Ponganis, Paul |
author_sort |
Ponganis, Paul |
title |
The Physiological Ecology of Two Antarctic Icons: Emperor Penguins and Leopard Seals |
title_short |
The Physiological Ecology of Two Antarctic Icons: Emperor Penguins and Leopard Seals |
title_full |
The Physiological Ecology of Two Antarctic Icons: Emperor Penguins and Leopard Seals |
title_fullStr |
The Physiological Ecology of Two Antarctic Icons: Emperor Penguins and Leopard Seals |
title_full_unstemmed |
The Physiological Ecology of Two Antarctic Icons: Emperor Penguins and Leopard Seals |
title_sort |
physiological ecology of two antarctic icons: emperor penguins and leopard seals |
publisher |
IEDA: US Antarctic Program Data Center |
publishDate |
2014 |
url |
http://get.iedadata.org/metadata/iso/600113 |
op_coverage |
ENVELOPE(-160.0,-150.0,-68.0,-78.0) BEGINDATE: 2010-09-01T00:00:00Z ENDDATE: 2014-08-31T00:00:00Z |
long_lat |
ENVELOPE(-61.626,-61.626,-64.145,-64.145) ENVELOPE(-160.0,-150.0,-68.0,-78.0) |
geographic |
Antarctic Hydrurga Ross Sea Southern Ocean |
geographic_facet |
Antarctic Hydrurga Ross Sea Southern Ocean |
genre |
Antarc* Antarctic Antarctica Aptenodytes forsteri Emperor penguins Hydrurga leptonyx Leopard Seal Leopard Seals Ross Sea Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Aptenodytes forsteri Emperor penguins Hydrurga leptonyx Leopard Seal Leopard Seals Ross Sea Southern Ocean |
_version_ |
1800873699808641024 |