Double White Lines on the Bill of the Razorbill Alca torda : Remnants of an Association with the Extint GreatAuk Penguinus impennis ?
One of the diagnostic featuresof the Razorbill Alca torda is the distinct white line running vertically across the bill. Herewe report the presence of two white bill lines in 10 wintering Razorbills fromNewfoundland, Canada in addition to a small number of unreported birds from museumcollections and...
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ftunivtasecite:oai:ecite.utas.edu.au:78335 2023-05-15T13:12:12+02:00 Double White Lines on the Bill of the Razorbill Alca torda : Remnants of an Association with the Extint GreatAuk Penguinus impennis ? Lavers, JL Muzaffar, SB Jones, IL 2006 application/pdf http://www.seabirdgroup.org.uk/ http://ecite.utas.edu.au/78335 en eng Seabird Group http://ecite.utas.edu.au/78335/1/Lavers+etal+06+-+RAZO+Bill+Grooves[1].pdf Lavers, JL and Muzaffar, SB and Jones, IL, Double White Lines on the Bill of the Razorbill Alca torda : Remnants of an Association with the Extint GreatAuk Penguinus impennis ?, Atlantic Seabirds, 7, (3) pp. 103-108. ISSN 1757-5842 (2006) [Refereed Article] http://ecite.utas.edu.au/78335 Biological Sciences Ecology Ecology not elsewhere classified Refereed Article PeerReviewed 2006 ftunivtasecite 2019-12-13T21:44:06Z One of the diagnostic featuresof the Razorbill Alca torda is the distinct white line running vertically across the bill. Herewe report the presence of two white bill lines in 10 wintering Razorbills fromNewfoundland, Canada in addition to a small number of unreported birds from museumcollections and personal records. Populations of Razorbills across their range have beendivided into two major subspecies based on morphological variation, although molecularstudies do not support such a subdivision. Molecular phylogeny of the auks place Razorbillsas the closest relatives of the extinct Great Auk Penguinus impennis. Multiple white billlines were a characteristic of the Great Auk and we speculate that this variation in the billmarking in the Razorbill is an atavism, reflecting their common ancestry. Article in Journal/Newspaper Alca torda Great auk Razorbill eCite UTAS (University of Tasmania) Canada |
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Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Biological Sciences Ecology Ecology not elsewhere classified |
spellingShingle |
Biological Sciences Ecology Ecology not elsewhere classified Lavers, JL Muzaffar, SB Jones, IL Double White Lines on the Bill of the Razorbill Alca torda : Remnants of an Association with the Extint GreatAuk Penguinus impennis ? |
topic_facet |
Biological Sciences Ecology Ecology not elsewhere classified |
description |
One of the diagnostic featuresof the Razorbill Alca torda is the distinct white line running vertically across the bill. Herewe report the presence of two white bill lines in 10 wintering Razorbills fromNewfoundland, Canada in addition to a small number of unreported birds from museumcollections and personal records. Populations of Razorbills across their range have beendivided into two major subspecies based on morphological variation, although molecularstudies do not support such a subdivision. Molecular phylogeny of the auks place Razorbillsas the closest relatives of the extinct Great Auk Penguinus impennis. Multiple white billlines were a characteristic of the Great Auk and we speculate that this variation in the billmarking in the Razorbill is an atavism, reflecting their common ancestry. |
format |
Article in Journal/Newspaper |
author |
Lavers, JL Muzaffar, SB Jones, IL |
author_facet |
Lavers, JL Muzaffar, SB Jones, IL |
author_sort |
Lavers, JL |
title |
Double White Lines on the Bill of the Razorbill Alca torda : Remnants of an Association with the Extint GreatAuk Penguinus impennis ? |
title_short |
Double White Lines on the Bill of the Razorbill Alca torda : Remnants of an Association with the Extint GreatAuk Penguinus impennis ? |
title_full |
Double White Lines on the Bill of the Razorbill Alca torda : Remnants of an Association with the Extint GreatAuk Penguinus impennis ? |
title_fullStr |
Double White Lines on the Bill of the Razorbill Alca torda : Remnants of an Association with the Extint GreatAuk Penguinus impennis ? |
title_full_unstemmed |
Double White Lines on the Bill of the Razorbill Alca torda : Remnants of an Association with the Extint GreatAuk Penguinus impennis ? |
title_sort |
double white lines on the bill of the razorbill alca torda : remnants of an association with the extint greatauk penguinus impennis ? |
publisher |
Seabird Group |
publishDate |
2006 |
url |
http://www.seabirdgroup.org.uk/ http://ecite.utas.edu.au/78335 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Alca torda Great auk Razorbill |
genre_facet |
Alca torda Great auk Razorbill |
op_relation |
http://ecite.utas.edu.au/78335/1/Lavers+etal+06+-+RAZO+Bill+Grooves[1].pdf Lavers, JL and Muzaffar, SB and Jones, IL, Double White Lines on the Bill of the Razorbill Alca torda : Remnants of an Association with the Extint GreatAuk Penguinus impennis ?, Atlantic Seabirds, 7, (3) pp. 103-108. ISSN 1757-5842 (2006) [Refereed Article] http://ecite.utas.edu.au/78335 |
_version_ |
1766250751169921024 |