Luminous intensity and dive depth profile data of emperor penguins from Pointe Géologie, Adélie Land, Antarctica, from expedition DDU 2005, supplement to: Zimmer, Ilka; Wilson, Rory P; Beaulieu, Michaël; Ancel, André; Plötz, Joachim (2008): Seeing the light: depth and time restrictions in the foraging capacity of emperor penguins at Pointe Géologie, Antarctica. Aquatic Biology, 3(3), 217-226
The foraging ability of visual hunters depends critically on light conditions. Emperor penguins Aptenodytes forsteri are reported to be visual hunters, but breed and forage at high latitudes and are thus exposed to extreme changes in light conditions in the course of the year. We examined how light...
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ftdatacite:10.1594/pangaea.701333 2023-05-15T13:38:30+02:00 Luminous intensity and dive depth profile data of emperor penguins from Pointe Géologie, Adélie Land, Antarctica, from expedition DDU 2005, supplement to: Zimmer, Ilka; Wilson, Rory P; Beaulieu, Michaël; Ancel, André; Plötz, Joachim (2008): Seeing the light: depth and time restrictions in the foraging capacity of emperor penguins at Pointe Géologie, Antarctica. Aquatic Biology, 3(3), 217-226 Zimmer, Ilka Wilson, Rory P Beaulieu, Michaël Ancel, André Plötz, Joachim 2008 application/zip https://dx.doi.org/10.1594/pangaea.701333 https://doi.pangaea.de/10.1594/PANGAEA.701333 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.3354/ab00082 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Marine endotherm DDU2005 Dumont d´Urville Station Marine Mammal Tracking MMT Collection article Supplementary Collection of Datasets 2008 ftdatacite https://doi.org/10.1594/pangaea.701333 https://doi.org/10.3354/ab00082 2021-11-05T12:55:41Z The foraging ability of visual hunters depends critically on light conditions. Emperor penguins Aptenodytes forsteri are reported to be visual hunters, but breed and forage at high latitudes and are thus exposed to extreme changes in light conditions in the course of the year. We examined how light influenced the foraging ability of breeding emperor penguins using loggers in winter (n = 5) and spring (n = 4) 2005 (see doi:10.1594/PANGAEA.633713) at Pointe Géologie (66° 40' S, 140° 01' E), Antarctica, as well as by using models of light availability over the year and as a function of depth. The model showed that daylight was continuous between days of the year 350 and 363 and that the sun did not rise between days of the year 166 and 180. Logger-measured light intensity decreased with water depth, and depth-specific values were higher at greater sun elevation angles. Depth-time use (given by the maximum depth reached multiplied by the number of hours at which this depth could be achieved over 24 h) of spring-foraging penguins was 8394.5 m x h, which was more than twice that of winter-foraging birds at 3845.4 m x h, showing the severe constraints imposed by winter conditions. Average catch-per-unit effort was related to mean maximum diving depth and was highest around mid-day in winter and highest during dawn and dusk in spring. This reflects availability of prey to foraging emperor penguins. Article in Journal/Newspaper Antarc* Antarctica Aptenodytes forsteri E. Antarctica Emperor penguins DataCite Metadata Store (German National Library of Science and Technology) Pointe-Géologie ENVELOPE(140.017,140.017,-66.667,-66.667) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Marine endotherm DDU2005 Dumont d´Urville Station Marine Mammal Tracking MMT |
spellingShingle |
Marine endotherm DDU2005 Dumont d´Urville Station Marine Mammal Tracking MMT Zimmer, Ilka Wilson, Rory P Beaulieu, Michaël Ancel, André Plötz, Joachim Luminous intensity and dive depth profile data of emperor penguins from Pointe Géologie, Adélie Land, Antarctica, from expedition DDU 2005, supplement to: Zimmer, Ilka; Wilson, Rory P; Beaulieu, Michaël; Ancel, André; Plötz, Joachim (2008): Seeing the light: depth and time restrictions in the foraging capacity of emperor penguins at Pointe Géologie, Antarctica. Aquatic Biology, 3(3), 217-226 |
topic_facet |
Marine endotherm DDU2005 Dumont d´Urville Station Marine Mammal Tracking MMT |
description |
The foraging ability of visual hunters depends critically on light conditions. Emperor penguins Aptenodytes forsteri are reported to be visual hunters, but breed and forage at high latitudes and are thus exposed to extreme changes in light conditions in the course of the year. We examined how light influenced the foraging ability of breeding emperor penguins using loggers in winter (n = 5) and spring (n = 4) 2005 (see doi:10.1594/PANGAEA.633713) at Pointe Géologie (66° 40' S, 140° 01' E), Antarctica, as well as by using models of light availability over the year and as a function of depth. The model showed that daylight was continuous between days of the year 350 and 363 and that the sun did not rise between days of the year 166 and 180. Logger-measured light intensity decreased with water depth, and depth-specific values were higher at greater sun elevation angles. Depth-time use (given by the maximum depth reached multiplied by the number of hours at which this depth could be achieved over 24 h) of spring-foraging penguins was 8394.5 m x h, which was more than twice that of winter-foraging birds at 3845.4 m x h, showing the severe constraints imposed by winter conditions. Average catch-per-unit effort was related to mean maximum diving depth and was highest around mid-day in winter and highest during dawn and dusk in spring. This reflects availability of prey to foraging emperor penguins. |
format |
Article in Journal/Newspaper |
author |
Zimmer, Ilka Wilson, Rory P Beaulieu, Michaël Ancel, André Plötz, Joachim |
author_facet |
Zimmer, Ilka Wilson, Rory P Beaulieu, Michaël Ancel, André Plötz, Joachim |
author_sort |
Zimmer, Ilka |
title |
Luminous intensity and dive depth profile data of emperor penguins from Pointe Géologie, Adélie Land, Antarctica, from expedition DDU 2005, supplement to: Zimmer, Ilka; Wilson, Rory P; Beaulieu, Michaël; Ancel, André; Plötz, Joachim (2008): Seeing the light: depth and time restrictions in the foraging capacity of emperor penguins at Pointe Géologie, Antarctica. Aquatic Biology, 3(3), 217-226 |
title_short |
Luminous intensity and dive depth profile data of emperor penguins from Pointe Géologie, Adélie Land, Antarctica, from expedition DDU 2005, supplement to: Zimmer, Ilka; Wilson, Rory P; Beaulieu, Michaël; Ancel, André; Plötz, Joachim (2008): Seeing the light: depth and time restrictions in the foraging capacity of emperor penguins at Pointe Géologie, Antarctica. Aquatic Biology, 3(3), 217-226 |
title_full |
Luminous intensity and dive depth profile data of emperor penguins from Pointe Géologie, Adélie Land, Antarctica, from expedition DDU 2005, supplement to: Zimmer, Ilka; Wilson, Rory P; Beaulieu, Michaël; Ancel, André; Plötz, Joachim (2008): Seeing the light: depth and time restrictions in the foraging capacity of emperor penguins at Pointe Géologie, Antarctica. Aquatic Biology, 3(3), 217-226 |
title_fullStr |
Luminous intensity and dive depth profile data of emperor penguins from Pointe Géologie, Adélie Land, Antarctica, from expedition DDU 2005, supplement to: Zimmer, Ilka; Wilson, Rory P; Beaulieu, Michaël; Ancel, André; Plötz, Joachim (2008): Seeing the light: depth and time restrictions in the foraging capacity of emperor penguins at Pointe Géologie, Antarctica. Aquatic Biology, 3(3), 217-226 |
title_full_unstemmed |
Luminous intensity and dive depth profile data of emperor penguins from Pointe Géologie, Adélie Land, Antarctica, from expedition DDU 2005, supplement to: Zimmer, Ilka; Wilson, Rory P; Beaulieu, Michaël; Ancel, André; Plötz, Joachim (2008): Seeing the light: depth and time restrictions in the foraging capacity of emperor penguins at Pointe Géologie, Antarctica. Aquatic Biology, 3(3), 217-226 |
title_sort |
luminous intensity and dive depth profile data of emperor penguins from pointe géologie, adélie land, antarctica, from expedition ddu 2005, supplement to: zimmer, ilka; wilson, rory p; beaulieu, michaël; ancel, andré; plötz, joachim (2008): seeing the light: depth and time restrictions in the foraging capacity of emperor penguins at pointe géologie, antarctica. aquatic biology, 3(3), 217-226 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2008 |
url |
https://dx.doi.org/10.1594/pangaea.701333 https://doi.pangaea.de/10.1594/PANGAEA.701333 |
long_lat |
ENVELOPE(140.017,140.017,-66.667,-66.667) |
geographic |
Pointe-Géologie |
geographic_facet |
Pointe-Géologie |
genre |
Antarc* Antarctica Aptenodytes forsteri E. Antarctica Emperor penguins |
genre_facet |
Antarc* Antarctica Aptenodytes forsteri E. Antarctica Emperor penguins |
op_relation |
https://dx.doi.org/10.3354/ab00082 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.701333 https://doi.org/10.3354/ab00082 |
_version_ |
1766106961142611968 |