Bone density distribution patterns in the rostrum of delphinids and beaked whales: evidence of family-specific evolutive traits.
Toothed whales have undergone a profound telescopic rearrangement of the skull, with elongation of facial bones and formation of a hollow rostrum, filled in vivo by the mesorostral cartilage. In most species of the family Ziphiidae, this latter cartilage becomes secondarily ossified, producing in so...
Published in: | The Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology |
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Format: | Article in Journal/Newspaper |
Language: | English |
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WILEY-LISS, DIV JOHN WILEY & SONS INC, 111 RIVER ST, HOBOKEN, NJ 07030 USA
2010
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Online Access: | http://hdl.handle.net/11577/2439116 https://doi.org/10.1002/ar.21044 |
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ftunivpadovairis:oai:www.research.unipd.it:11577/2439116 2024-04-21T08:12:47+00:00 Bone density distribution patterns in the rostrum of delphinids and beaked whales: evidence of family-specific evolutive traits. COZZI, BRUNO PANIN, MATTIA ZOTTI, ALESSANDRO BUTTI C PODESTA' M Cozzi, Bruno Panin, Mattia Butti, C Podesta', M Zotti, Alessandro 2010 STAMPA http://hdl.handle.net/11577/2439116 https://doi.org/10.1002/ar.21044 eng eng WILEY-LISS, DIV JOHN WILEY & SONS INC, 111 RIVER ST, HOBOKEN, NJ 07030 USA info:eu-repo/semantics/altIdentifier/pmid/20027645 info:eu-repo/semantics/altIdentifier/wos/WOS:000274702300007 volume:293 issue:2 firstpage:235 lastpage:242 numberofpages:8 journal:THE ANATOMICAL RECORD http://hdl.handle.net/11577/2439116 doi:10.1002/ar.21044 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-76149113231 info:eu-repo/semantics/article 2010 ftunivpadovairis https://doi.org/10.1002/ar.21044 2024-03-28T01:50:42Z Toothed whales have undergone a profound telescopic rearrangement of the skull, with elongation of facial bones and formation of a hollow rostrum, filled in vivo by the mesorostral cartilage. In most species of the family Ziphiidae, this latter cartilage becomes secondarily ossified, producing in some cases the densest bone existing in nature. Starting from this observation, we wanted to investigate the patterns of distribution of bone mineral density (BMD) in the rostrum of two families of toothed whales with different ecological and behavioral traits: Delphinidae and Ziphiidae. We analyzed BMD non invasively by means of the dual energy X-ray absorptiometry technology, and found two different density distribution patterns that distinctly set the two families apart. Namely, BMD values decrease from the proximal to the distal region of the rostrum in delphinids, whereas the beaked whales show a BMD peak in the central region. Possible functions such as ballast or protection against clashes might be likely, although more data about the species of both families is needed to give better evidence. Article in Journal/Newspaper toothed whales Padua Research Archive (IRIS - Università degli Studi di Padova) The Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology 293 2 235 242 |
institution |
Open Polar |
collection |
Padua Research Archive (IRIS - Università degli Studi di Padova) |
op_collection_id |
ftunivpadovairis |
language |
English |
description |
Toothed whales have undergone a profound telescopic rearrangement of the skull, with elongation of facial bones and formation of a hollow rostrum, filled in vivo by the mesorostral cartilage. In most species of the family Ziphiidae, this latter cartilage becomes secondarily ossified, producing in some cases the densest bone existing in nature. Starting from this observation, we wanted to investigate the patterns of distribution of bone mineral density (BMD) in the rostrum of two families of toothed whales with different ecological and behavioral traits: Delphinidae and Ziphiidae. We analyzed BMD non invasively by means of the dual energy X-ray absorptiometry technology, and found two different density distribution patterns that distinctly set the two families apart. Namely, BMD values decrease from the proximal to the distal region of the rostrum in delphinids, whereas the beaked whales show a BMD peak in the central region. Possible functions such as ballast or protection against clashes might be likely, although more data about the species of both families is needed to give better evidence. |
author2 |
Cozzi, Bruno Panin, Mattia Butti, C Podesta', M Zotti, Alessandro |
format |
Article in Journal/Newspaper |
author |
COZZI, BRUNO PANIN, MATTIA ZOTTI, ALESSANDRO BUTTI C PODESTA' M |
spellingShingle |
COZZI, BRUNO PANIN, MATTIA ZOTTI, ALESSANDRO BUTTI C PODESTA' M Bone density distribution patterns in the rostrum of delphinids and beaked whales: evidence of family-specific evolutive traits. |
author_facet |
COZZI, BRUNO PANIN, MATTIA ZOTTI, ALESSANDRO BUTTI C PODESTA' M |
author_sort |
COZZI, BRUNO |
title |
Bone density distribution patterns in the rostrum of delphinids and beaked whales: evidence of family-specific evolutive traits. |
title_short |
Bone density distribution patterns in the rostrum of delphinids and beaked whales: evidence of family-specific evolutive traits. |
title_full |
Bone density distribution patterns in the rostrum of delphinids and beaked whales: evidence of family-specific evolutive traits. |
title_fullStr |
Bone density distribution patterns in the rostrum of delphinids and beaked whales: evidence of family-specific evolutive traits. |
title_full_unstemmed |
Bone density distribution patterns in the rostrum of delphinids and beaked whales: evidence of family-specific evolutive traits. |
title_sort |
bone density distribution patterns in the rostrum of delphinids and beaked whales: evidence of family-specific evolutive traits. |
publisher |
WILEY-LISS, DIV JOHN WILEY & SONS INC, 111 RIVER ST, HOBOKEN, NJ 07030 USA |
publishDate |
2010 |
url |
http://hdl.handle.net/11577/2439116 https://doi.org/10.1002/ar.21044 |
genre |
toothed whales |
genre_facet |
toothed whales |
op_relation |
info:eu-repo/semantics/altIdentifier/pmid/20027645 info:eu-repo/semantics/altIdentifier/wos/WOS:000274702300007 volume:293 issue:2 firstpage:235 lastpage:242 numberofpages:8 journal:THE ANATOMICAL RECORD http://hdl.handle.net/11577/2439116 doi:10.1002/ar.21044 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-76149113231 |
op_doi |
https://doi.org/10.1002/ar.21044 |
container_title |
The Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology |
container_volume |
293 |
container_issue |
2 |
container_start_page |
235 |
op_container_end_page |
242 |
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