Grasping behavior in the white‐tailed sea eagle (Accipitridae, Aves) explained by muscle architecture
Abstract Hindlimbs of raptors play an essential role in feeding due to the grasping abilities that allow them to hunt and kill their prey. This study explores and quantifies for the first time the structural and mechanical features of the digit flexor muscles in one of the largest piscivorous Europe...
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crwiley:10.1111/jzo.12876 2024-05-19T07:41:35+00:00 Grasping behavior in the white‐tailed sea eagle (Accipitridae, Aves) explained by muscle architecture Mosto, María Clelia Cassini, G. H. Picasso, M. B. J. Krone, O. Consejo Nacional de Investigaciones Científicas y Técnicas 2021 http://dx.doi.org/10.1111/jzo.12876 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jzo.12876 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/jzo.12876 https://zslpublications.onlinelibrary.wiley.com/doi/pdf/10.1111/jzo.12876 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Zoology volume 314, issue 3, page 234-244 ISSN 0952-8369 1469-7998 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 2021 crwiley https://doi.org/10.1111/jzo.12876 2024-04-22T07:36:21Z Abstract Hindlimbs of raptors play an essential role in feeding due to the grasping abilities that allow them to hunt and kill their prey. This study explores and quantifies for the first time the structural and mechanical features of the digit flexor muscles in one of the largest piscivorous European raptors, the white‐tailed sea eagle. We studied the myological architecture of nine muscles of five females and five males of Haliaeetus albicilla . We found that (1) reversed sexual dimorphism was not reflected in any of these structural or mechanical variables; (2) when the physiological cross‐sectional area values of muscles were scaled altogether against body mass, they had a positive allometric tendency, implying that larger muscles have proportionally higher physiological cross‐sectional area values than smaller ones. Conversely, different scaling patterns were obtained when each flexor was analyzed individually: Only three muscles were positively allometric, and four muscles were isometric. (3) Three major groups can be identified in relation to the different features here analyzed: (1) flexor digitorum longus , flexor hallucis longus and tibialis cranialis: large muscles, with high physiological cross‐sectional area and tendon cross‐sectional area, low tendon/belly ratio and isometric; (2) flexor hallucis brevis: small muscle, with intermediate physiological cross‐sectional area and tendon cross‐sectional area, low tendon/belly ratio, short fiber length and isometric; (3) musculi perforans and perforans et perforatus: intermediate muscles, with low physiological cross‐sectional area and tendon cross‐sectional area, high tendon/belly ratio and allometric. Haliaeetus albicilla hunts mainly fish, an elusive prey, and their muscles have an anatomical design related to their common purpose, to grip prey. However, different patterns that characterize each muscle might respond to different requirements related to this particular prey item and hunting behavior and to the role each digit can perform. Article in Journal/Newspaper Haliaeetus albicilla Wiley Online Library Journal of Zoology 314 3 234 244 |
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Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
topic |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics Mosto, María Clelia Cassini, G. H. Picasso, M. B. J. Krone, O. Grasping behavior in the white‐tailed sea eagle (Accipitridae, Aves) explained by muscle architecture |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
Abstract Hindlimbs of raptors play an essential role in feeding due to the grasping abilities that allow them to hunt and kill their prey. This study explores and quantifies for the first time the structural and mechanical features of the digit flexor muscles in one of the largest piscivorous European raptors, the white‐tailed sea eagle. We studied the myological architecture of nine muscles of five females and five males of Haliaeetus albicilla . We found that (1) reversed sexual dimorphism was not reflected in any of these structural or mechanical variables; (2) when the physiological cross‐sectional area values of muscles were scaled altogether against body mass, they had a positive allometric tendency, implying that larger muscles have proportionally higher physiological cross‐sectional area values than smaller ones. Conversely, different scaling patterns were obtained when each flexor was analyzed individually: Only three muscles were positively allometric, and four muscles were isometric. (3) Three major groups can be identified in relation to the different features here analyzed: (1) flexor digitorum longus , flexor hallucis longus and tibialis cranialis: large muscles, with high physiological cross‐sectional area and tendon cross‐sectional area, low tendon/belly ratio and isometric; (2) flexor hallucis brevis: small muscle, with intermediate physiological cross‐sectional area and tendon cross‐sectional area, low tendon/belly ratio, short fiber length and isometric; (3) musculi perforans and perforans et perforatus: intermediate muscles, with low physiological cross‐sectional area and tendon cross‐sectional area, high tendon/belly ratio and allometric. Haliaeetus albicilla hunts mainly fish, an elusive prey, and their muscles have an anatomical design related to their common purpose, to grip prey. However, different patterns that characterize each muscle might respond to different requirements related to this particular prey item and hunting behavior and to the role each digit can perform. |
author2 |
Consejo Nacional de Investigaciones Científicas y Técnicas |
format |
Article in Journal/Newspaper |
author |
Mosto, María Clelia Cassini, G. H. Picasso, M. B. J. Krone, O. |
author_facet |
Mosto, María Clelia Cassini, G. H. Picasso, M. B. J. Krone, O. |
author_sort |
Mosto, María Clelia |
title |
Grasping behavior in the white‐tailed sea eagle (Accipitridae, Aves) explained by muscle architecture |
title_short |
Grasping behavior in the white‐tailed sea eagle (Accipitridae, Aves) explained by muscle architecture |
title_full |
Grasping behavior in the white‐tailed sea eagle (Accipitridae, Aves) explained by muscle architecture |
title_fullStr |
Grasping behavior in the white‐tailed sea eagle (Accipitridae, Aves) explained by muscle architecture |
title_full_unstemmed |
Grasping behavior in the white‐tailed sea eagle (Accipitridae, Aves) explained by muscle architecture |
title_sort |
grasping behavior in the white‐tailed sea eagle (accipitridae, aves) explained by muscle architecture |
publisher |
Wiley |
publishDate |
2021 |
url |
http://dx.doi.org/10.1111/jzo.12876 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jzo.12876 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/jzo.12876 https://zslpublications.onlinelibrary.wiley.com/doi/pdf/10.1111/jzo.12876 |
genre |
Haliaeetus albicilla |
genre_facet |
Haliaeetus albicilla |
op_source |
Journal of Zoology volume 314, issue 3, page 234-244 ISSN 0952-8369 1469-7998 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/jzo.12876 |
container_title |
Journal of Zoology |
container_volume |
314 |
container_issue |
3 |
container_start_page |
234 |
op_container_end_page |
244 |
_version_ |
1799481188057874432 |