Avian orientation at steep angles of inclination: experiments with migratory white-crowned sparrows at the magnetic North Pole
The Earths magnetic field and celestial cues provide animals with compass information during migration.Inherited magnetic compass courses are selected based on the angle of inclination, making itdifficult to orient in the near vertical fields found at high geomagnetic latitudes. Orientation cage exp...
Published in: | Proceedings of the Royal Society of London. Series B: Biological Sciences |
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Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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Royal Society Publishing
2001
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Online Access: | https://lup.lub.lu.se/record/131249 https://doi.org/10.1098/rspb.2001.1736 https://portal.research.lu.se/files/4518639/624185.pdf |
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ftulundlup:oai:lup.lub.lu.se:469ac62f-c828-42c2-bcd6-76129ea7683b 2023-05-15T15:04:08+02:00 Avian orientation at steep angles of inclination: experiments with migratory white-crowned sparrows at the magnetic North Pole Åkesson, Susanne Morin, Jens Muheim, Rachel Ottosson, Ulf 2001 application/pdf https://lup.lub.lu.se/record/131249 https://doi.org/10.1098/rspb.2001.1736 https://portal.research.lu.se/files/4518639/624185.pdf eng eng Royal Society Publishing https://lup.lub.lu.se/record/131249 http://dx.doi.org/10.1098/rspb.2001.1736 https://portal.research.lu.se/files/4518639/624185.pdf wos:000171288500007 scopus:0035934615 pmid:11564346 info:eu-repo/semantics/openAccess Royal Society of London. Proceedings B. Biological Sciences; 268(1479), pp 1907-1913 (2001) ISSN: 1471-2954 Zoology Biological Sciences contributiontojournal/article info:eu-repo/semantics/article text 2001 ftulundlup https://doi.org/10.1098/rspb.2001.1736 2023-02-01T23:28:09Z The Earths magnetic field and celestial cues provide animals with compass information during migration.Inherited magnetic compass courses are selected based on the angle of inclination, making itdifficult to orient in the near vertical fields found at high geomagnetic latitudes. Orientation cage experimentswere performed at different sites in high Arctic Canada with adult and young white-crownedsparrows (Zonotrichia leucophrys gambelii) in order to investigate birds ability to use the Earths magneticfield and celestial cues for orientation in naturally very steep magnetic fields at and close to the magneticNorth Pole. Experiments were performed during the natural period of migration at night in the localgeomagnetic field under natural clear skies and under simulated total overcast conditions. The experimentalbirds failed to select a meaningful magnetic compass course under overcast conditions at themagnetic North Pole, but could do so in geomagnetic fields deviating less than 38 from the vertical.Migratory orientation was successful at all sites when celestial cues were available. Article in Journal/Newspaper Arctic North Pole Lund University Publications (LUP) Arctic Canada North Pole Proceedings of the Royal Society of London. Series B: Biological Sciences 268 1479 1907 1913 |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Zoology Biological Sciences |
spellingShingle |
Zoology Biological Sciences Åkesson, Susanne Morin, Jens Muheim, Rachel Ottosson, Ulf Avian orientation at steep angles of inclination: experiments with migratory white-crowned sparrows at the magnetic North Pole |
topic_facet |
Zoology Biological Sciences |
description |
The Earths magnetic field and celestial cues provide animals with compass information during migration.Inherited magnetic compass courses are selected based on the angle of inclination, making itdifficult to orient in the near vertical fields found at high geomagnetic latitudes. Orientation cage experimentswere performed at different sites in high Arctic Canada with adult and young white-crownedsparrows (Zonotrichia leucophrys gambelii) in order to investigate birds ability to use the Earths magneticfield and celestial cues for orientation in naturally very steep magnetic fields at and close to the magneticNorth Pole. Experiments were performed during the natural period of migration at night in the localgeomagnetic field under natural clear skies and under simulated total overcast conditions. The experimentalbirds failed to select a meaningful magnetic compass course under overcast conditions at themagnetic North Pole, but could do so in geomagnetic fields deviating less than 38 from the vertical.Migratory orientation was successful at all sites when celestial cues were available. |
format |
Article in Journal/Newspaper |
author |
Åkesson, Susanne Morin, Jens Muheim, Rachel Ottosson, Ulf |
author_facet |
Åkesson, Susanne Morin, Jens Muheim, Rachel Ottosson, Ulf |
author_sort |
Åkesson, Susanne |
title |
Avian orientation at steep angles of inclination: experiments with migratory white-crowned sparrows at the magnetic North Pole |
title_short |
Avian orientation at steep angles of inclination: experiments with migratory white-crowned sparrows at the magnetic North Pole |
title_full |
Avian orientation at steep angles of inclination: experiments with migratory white-crowned sparrows at the magnetic North Pole |
title_fullStr |
Avian orientation at steep angles of inclination: experiments with migratory white-crowned sparrows at the magnetic North Pole |
title_full_unstemmed |
Avian orientation at steep angles of inclination: experiments with migratory white-crowned sparrows at the magnetic North Pole |
title_sort |
avian orientation at steep angles of inclination: experiments with migratory white-crowned sparrows at the magnetic north pole |
publisher |
Royal Society Publishing |
publishDate |
2001 |
url |
https://lup.lub.lu.se/record/131249 https://doi.org/10.1098/rspb.2001.1736 https://portal.research.lu.se/files/4518639/624185.pdf |
geographic |
Arctic Canada North Pole |
geographic_facet |
Arctic Canada North Pole |
genre |
Arctic North Pole |
genre_facet |
Arctic North Pole |
op_source |
Royal Society of London. Proceedings B. Biological Sciences; 268(1479), pp 1907-1913 (2001) ISSN: 1471-2954 |
op_relation |
https://lup.lub.lu.se/record/131249 http://dx.doi.org/10.1098/rspb.2001.1736 https://portal.research.lu.se/files/4518639/624185.pdf wos:000171288500007 scopus:0035934615 pmid:11564346 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1098/rspb.2001.1736 |
container_title |
Proceedings of the Royal Society of London. Series B: Biological Sciences |
container_volume |
268 |
container_issue |
1479 |
container_start_page |
1907 |
op_container_end_page |
1913 |
_version_ |
1766335947424661504 |