Head adaptation for sound production and feeding strategy in dolphins (Odontoceti: Delphinida)
Abstract Head morphology in toothed whales evolved under selective pressures on feeding strategy and sound production. The postnatal development of the skull ( n = 207) and mandible ( n = 219) of six Delphinida species which differ in feeding strategy but exhibit similar sound emission patterns, inc...
Published in: | Journal of Anatomy |
---|---|
Main Authors: | , , , , |
Other Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2020
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/joa.13364 https://onlinelibrary.wiley.com/doi/pdf/10.1111/joa.13364 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/joa.13364 |
id |
crwiley:10.1111/joa.13364 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/joa.13364 2023-12-03T10:31:15+01:00 Head adaptation for sound production and feeding strategy in dolphins (Odontoceti: Delphinida) Frainer, Guilherme Huggenberger, Stefan Moreno, Ignacio B. Plön, Stephanie Galatius, Anders Conselho Nacional de Desenvolvimento Científico e Tecnológico Coordenação de Aperfeiçoamento de Pessoal de Nível Superior Society for Marine Mammalogy 2020 http://dx.doi.org/10.1111/joa.13364 https://onlinelibrary.wiley.com/doi/pdf/10.1111/joa.13364 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/joa.13364 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Anatomy volume 238, issue 5, page 1070-1081 ISSN 0021-8782 1469-7580 Cell Biology Developmental Biology Molecular Biology Ecology, Evolution, Behavior and Systematics Histology Anatomy journal-article 2020 crwiley https://doi.org/10.1111/joa.13364 2023-11-09T14:18:55Z Abstract Head morphology in toothed whales evolved under selective pressures on feeding strategy and sound production. The postnatal development of the skull ( n = 207) and mandible ( n = 219) of six Delphinida species which differ in feeding strategy but exhibit similar sound emission patterns, including two narrow‐band high‐frequency species, were investigated through 3D morphometrics. Morphological changes throughout ontogeny were demonstrated based on the main source of variation (i.e., prediction lines) and the common allometric component. Multivariate trajectory analysis with pairwise comparisons between all species was performed to evaluate specific differences on the postnatal development of skulls and mandibles. Changes in the rostrum formation contributed to the variation (skull: 49%; mandible: 90%) of the entire data set and might not only reflect the feeding strategy adopted by each lineage but also represents an adaptation for sound production and reception. As an important structure for directionality of sound emissions, this may increase directionality in raptorial feeders. Phylogenetic generalized least squares analyses indicated that shape of the anterior portion of the skull is strongly dependent on phylogeny and might not only reflect feeding mode, but also morphological adaptations for sound production, particularly in raptorial species. Thus, postnatal development seems to represent a crucial stage for biosonar maturation in some raptorial species such as Pontoporia blainvillei and Sousa plumbea . The ontogeny of their main tool for navigation and hunting might reflect their natural history peculiarities and thus potentially define their main vulnerabilities to anthropogenic changes in the environment. Article in Journal/Newspaper toothed whales Wiley Online Library (via Crossref) Journal of Anatomy 238 5 1070 1081 |
institution |
Open Polar |
collection |
Wiley Online Library (via Crossref) |
op_collection_id |
crwiley |
language |
English |
topic |
Cell Biology Developmental Biology Molecular Biology Ecology, Evolution, Behavior and Systematics Histology Anatomy |
spellingShingle |
Cell Biology Developmental Biology Molecular Biology Ecology, Evolution, Behavior and Systematics Histology Anatomy Frainer, Guilherme Huggenberger, Stefan Moreno, Ignacio B. Plön, Stephanie Galatius, Anders Head adaptation for sound production and feeding strategy in dolphins (Odontoceti: Delphinida) |
topic_facet |
Cell Biology Developmental Biology Molecular Biology Ecology, Evolution, Behavior and Systematics Histology Anatomy |
description |
Abstract Head morphology in toothed whales evolved under selective pressures on feeding strategy and sound production. The postnatal development of the skull ( n = 207) and mandible ( n = 219) of six Delphinida species which differ in feeding strategy but exhibit similar sound emission patterns, including two narrow‐band high‐frequency species, were investigated through 3D morphometrics. Morphological changes throughout ontogeny were demonstrated based on the main source of variation (i.e., prediction lines) and the common allometric component. Multivariate trajectory analysis with pairwise comparisons between all species was performed to evaluate specific differences on the postnatal development of skulls and mandibles. Changes in the rostrum formation contributed to the variation (skull: 49%; mandible: 90%) of the entire data set and might not only reflect the feeding strategy adopted by each lineage but also represents an adaptation for sound production and reception. As an important structure for directionality of sound emissions, this may increase directionality in raptorial feeders. Phylogenetic generalized least squares analyses indicated that shape of the anterior portion of the skull is strongly dependent on phylogeny and might not only reflect feeding mode, but also morphological adaptations for sound production, particularly in raptorial species. Thus, postnatal development seems to represent a crucial stage for biosonar maturation in some raptorial species such as Pontoporia blainvillei and Sousa plumbea . The ontogeny of their main tool for navigation and hunting might reflect their natural history peculiarities and thus potentially define their main vulnerabilities to anthropogenic changes in the environment. |
author2 |
Conselho Nacional de Desenvolvimento Científico e Tecnológico Coordenação de Aperfeiçoamento de Pessoal de Nível Superior Society for Marine Mammalogy |
format |
Article in Journal/Newspaper |
author |
Frainer, Guilherme Huggenberger, Stefan Moreno, Ignacio B. Plön, Stephanie Galatius, Anders |
author_facet |
Frainer, Guilherme Huggenberger, Stefan Moreno, Ignacio B. Plön, Stephanie Galatius, Anders |
author_sort |
Frainer, Guilherme |
title |
Head adaptation for sound production and feeding strategy in dolphins (Odontoceti: Delphinida) |
title_short |
Head adaptation for sound production and feeding strategy in dolphins (Odontoceti: Delphinida) |
title_full |
Head adaptation for sound production and feeding strategy in dolphins (Odontoceti: Delphinida) |
title_fullStr |
Head adaptation for sound production and feeding strategy in dolphins (Odontoceti: Delphinida) |
title_full_unstemmed |
Head adaptation for sound production and feeding strategy in dolphins (Odontoceti: Delphinida) |
title_sort |
head adaptation for sound production and feeding strategy in dolphins (odontoceti: delphinida) |
publisher |
Wiley |
publishDate |
2020 |
url |
http://dx.doi.org/10.1111/joa.13364 https://onlinelibrary.wiley.com/doi/pdf/10.1111/joa.13364 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/joa.13364 |
genre |
toothed whales |
genre_facet |
toothed whales |
op_source |
Journal of Anatomy volume 238, issue 5, page 1070-1081 ISSN 0021-8782 1469-7580 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/joa.13364 |
container_title |
Journal of Anatomy |
container_volume |
238 |
container_issue |
5 |
container_start_page |
1070 |
op_container_end_page |
1081 |
_version_ |
1784257461167849472 |