Bilateral directional asymmetry of the appendicular skeleton of the harbor porpoise ( Phocoena phocoena )
harbor porpoise, Phocoena phocoena, appendicular skeleton, directional asymmetry, lateralized behavior Directional asymmetry ( DA ) of the lengths, diameters, and masses of the scapula, humerus, radius, and ulna were analyzed on a sample of 213 harbor porpoises from Denmark and West Greenland. The l...
Published in: | Marine Mammal Science |
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ftcopenhagenunip:oai:pure.atira.dk:publications/16676c30-6c37-11dc-bee9-02004c4f4f50 2023-10-25T01:39:09+02:00 Bilateral directional asymmetry of the appendicular skeleton of the harbor porpoise ( Phocoena phocoena ) Galatius, Anders Jespersen, Åse 2005 https://curis.ku.dk/portal/da/publications/bilateral-directional-asymmetry-of-the-appendicular-skeleton-of-the-harbor-porpoise-phocoena-phocoena(16676c30-6c37-11dc-bee9-02004c4f4f50).html https://doi.org/10.1111/j.1748-7692.2005.tb01240.x eng eng info:eu-repo/semantics/restrictedAccess Galatius , A & Jespersen , Å 2005 , ' Bilateral directional asymmetry of the appendicular skeleton of the harbor porpoise ( Phocoena phocoena ) ' , Marine Mammal Science , vol. 21 , no. 3 , pp. 401-410 . https://doi.org/10.1111/j.1748-7692.2005.tb01240.x article 2005 ftcopenhagenunip https://doi.org/10.1111/j.1748-7692.2005.tb01240.x 2023-09-27T22:57:56Z harbor porpoise, Phocoena phocoena, appendicular skeleton, directional asymmetry, lateralized behavior Directional asymmetry ( DA ) of the lengths, diameters, and masses of the scapula, humerus, radius, and ulna were analyzed on a sample of 213 harbor porpoises from Denmark and West Greenland. The levels of DA were consistent across yearlings and older animals, mature and immature animals, sexes, and populations. All investigated variables showed significant DA favoring the right side. For the pooled sample, DA of lengths ranged from 0.2% SE 0.1 (ulna) to 1.2% SE 0.1 (scapula). DA s of diameters were 1.5% SE 0.2 for the humerus, 0.6% SE 0.1 for the radius, and 1.3% SE 0.2 for the ulna. DA of mass ranged from 2.8% SE 0.5 (humerus) to 4.3% SE 0.7 (ulna). The humerus and ulna had significantly larger mean diameter/ length ratios on the right side than the left, making them more robust. The large DA of scapula length indicates larger muscle mass associated with the right flipper, while the generally more robust right humerii and ulnae may be designed for higher levels of mechanical stress. These DA s and the examples of lateralized behavior recorded in cetaceans, point to the existence of lateralized use of the flippers at the population level in harbor porpoises and possibly other cetacean species. Article in Journal/Newspaper Greenland Phocoena phocoena University of Copenhagen: Research Greenland Marine Mammal Science 21 3 401 410 |
institution |
Open Polar |
collection |
University of Copenhagen: Research |
op_collection_id |
ftcopenhagenunip |
language |
English |
description |
harbor porpoise, Phocoena phocoena, appendicular skeleton, directional asymmetry, lateralized behavior Directional asymmetry ( DA ) of the lengths, diameters, and masses of the scapula, humerus, radius, and ulna were analyzed on a sample of 213 harbor porpoises from Denmark and West Greenland. The levels of DA were consistent across yearlings and older animals, mature and immature animals, sexes, and populations. All investigated variables showed significant DA favoring the right side. For the pooled sample, DA of lengths ranged from 0.2% SE 0.1 (ulna) to 1.2% SE 0.1 (scapula). DA s of diameters were 1.5% SE 0.2 for the humerus, 0.6% SE 0.1 for the radius, and 1.3% SE 0.2 for the ulna. DA of mass ranged from 2.8% SE 0.5 (humerus) to 4.3% SE 0.7 (ulna). The humerus and ulna had significantly larger mean diameter/ length ratios on the right side than the left, making them more robust. The large DA of scapula length indicates larger muscle mass associated with the right flipper, while the generally more robust right humerii and ulnae may be designed for higher levels of mechanical stress. These DA s and the examples of lateralized behavior recorded in cetaceans, point to the existence of lateralized use of the flippers at the population level in harbor porpoises and possibly other cetacean species. |
format |
Article in Journal/Newspaper |
author |
Galatius, Anders Jespersen, Åse |
spellingShingle |
Galatius, Anders Jespersen, Åse Bilateral directional asymmetry of the appendicular skeleton of the harbor porpoise ( Phocoena phocoena ) |
author_facet |
Galatius, Anders Jespersen, Åse |
author_sort |
Galatius, Anders |
title |
Bilateral directional asymmetry of the appendicular skeleton of the harbor porpoise ( Phocoena phocoena ) |
title_short |
Bilateral directional asymmetry of the appendicular skeleton of the harbor porpoise ( Phocoena phocoena ) |
title_full |
Bilateral directional asymmetry of the appendicular skeleton of the harbor porpoise ( Phocoena phocoena ) |
title_fullStr |
Bilateral directional asymmetry of the appendicular skeleton of the harbor porpoise ( Phocoena phocoena ) |
title_full_unstemmed |
Bilateral directional asymmetry of the appendicular skeleton of the harbor porpoise ( Phocoena phocoena ) |
title_sort |
bilateral directional asymmetry of the appendicular skeleton of the harbor porpoise ( phocoena phocoena ) |
publishDate |
2005 |
url |
https://curis.ku.dk/portal/da/publications/bilateral-directional-asymmetry-of-the-appendicular-skeleton-of-the-harbor-porpoise-phocoena-phocoena(16676c30-6c37-11dc-bee9-02004c4f4f50).html https://doi.org/10.1111/j.1748-7692.2005.tb01240.x |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Phocoena phocoena |
genre_facet |
Greenland Phocoena phocoena |
op_source |
Galatius , A & Jespersen , Å 2005 , ' Bilateral directional asymmetry of the appendicular skeleton of the harbor porpoise ( Phocoena phocoena ) ' , Marine Mammal Science , vol. 21 , no. 3 , pp. 401-410 . https://doi.org/10.1111/j.1748-7692.2005.tb01240.x |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1111/j.1748-7692.2005.tb01240.x |
container_title |
Marine Mammal Science |
container_volume |
21 |
container_issue |
3 |
container_start_page |
401 |
op_container_end_page |
410 |
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1780734322709364736 |