High frequency echolocation, ear morphology, and the marine-freshwater transition: A comparative study of extant and extinct toothed whales
This study compares the bony ear morphology of freshwater and marine odontocetes (toothed whales). Odontocetes are unique among marine mammals in two important respects: 1) they use echolocation; 2) at least three lineages have independently evolved obligate freshwater habits from marine ancestries....
Published in: | Palaeogeography, Palaeoclimatology, Palaeoecology |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Online Access: | https://doi.org/10.1016/j.palaeo.2014.01.026 https://repositorio.uchile.cl/handle/2250/155089 |
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ftunivchile:oai:repositorio.uchile.cl:2250/155089 2023-05-15T18:33:28+02:00 High frequency echolocation, ear morphology, and the marine-freshwater transition: A comparative study of extant and extinct toothed whales Gutstein, Carolina S. Figueroa Bravo, Constanza P. Pyenson, Nicholas D. Yury Yáñez, Roberto E. Cozzuol, Mario A. Canals Lambarri, Mauricio 2014 application/pdf https://doi.org/10.1016/j.palaeo.2014.01.026 https://repositorio.uchile.cl/handle/2250/155089 en eng Elsevier Palaeogeography, Palaeoclimatology, Palaeoecology, Volumen 400, 00310182 doi:10.1016/j.palaeo.2014.01.026 https://repositorio.uchile.cl/handle/2250/155089 Attribution-NonCommercial-NoDerivs 3.0 Chile http://creativecommons.org/licenses/by-nc-nd/3.0/cl/ CC-BY-NC-ND Palaeogeography, Palaeoclimatology, Palaeoecology Ecomorphology Evolution Neogene Odontoceti Periotic River dolphins Artículo de revista 2014 ftunivchile https://doi.org/10.1016/j.palaeo.2014.01.026 2023-01-22T00:54:21Z This study compares the bony ear morphology of freshwater and marine odontocetes (toothed whales). Odontocetes are unique among marine mammals in two important respects: 1) they use echolocation; 2) at least three lineages have independently evolved obligate freshwater habits from marine ancestries. Freshwater odontocetes include the so-called "river dolphins," a paraphyletic group that each evolved convergent external morphological characters that distinguish them from oceanic dolphins (Delphinoidea). In addition to their convergent external morphology, "river dolphins" all have echolocation that use one peak (narrow-band) frequency around 100. kHz, compared to oceanic delphinoids which use a two peak (bimodal) frequency ranging from 40 to 140. kHz. The differences in echolocation suggest that the sensory systems responsible for detecting these different sound frequencies should also differ, although quantitative assessments of the cetacean hearing system remain understudied and taxon Article in Journal/Newspaper toothed whales Universidad de Chile: Repositorio académico Palaeogeography, Palaeoclimatology, Palaeoecology 400 62 74 |
institution |
Open Polar |
collection |
Universidad de Chile: Repositorio académico |
op_collection_id |
ftunivchile |
language |
English |
topic |
Ecomorphology Evolution Neogene Odontoceti Periotic River dolphins |
spellingShingle |
Ecomorphology Evolution Neogene Odontoceti Periotic River dolphins Gutstein, Carolina S. Figueroa Bravo, Constanza P. Pyenson, Nicholas D. Yury Yáñez, Roberto E. Cozzuol, Mario A. Canals Lambarri, Mauricio High frequency echolocation, ear morphology, and the marine-freshwater transition: A comparative study of extant and extinct toothed whales |
topic_facet |
Ecomorphology Evolution Neogene Odontoceti Periotic River dolphins |
description |
This study compares the bony ear morphology of freshwater and marine odontocetes (toothed whales). Odontocetes are unique among marine mammals in two important respects: 1) they use echolocation; 2) at least three lineages have independently evolved obligate freshwater habits from marine ancestries. Freshwater odontocetes include the so-called "river dolphins," a paraphyletic group that each evolved convergent external morphological characters that distinguish them from oceanic dolphins (Delphinoidea). In addition to their convergent external morphology, "river dolphins" all have echolocation that use one peak (narrow-band) frequency around 100. kHz, compared to oceanic delphinoids which use a two peak (bimodal) frequency ranging from 40 to 140. kHz. The differences in echolocation suggest that the sensory systems responsible for detecting these different sound frequencies should also differ, although quantitative assessments of the cetacean hearing system remain understudied and taxon |
format |
Article in Journal/Newspaper |
author |
Gutstein, Carolina S. Figueroa Bravo, Constanza P. Pyenson, Nicholas D. Yury Yáñez, Roberto E. Cozzuol, Mario A. Canals Lambarri, Mauricio |
author_facet |
Gutstein, Carolina S. Figueroa Bravo, Constanza P. Pyenson, Nicholas D. Yury Yáñez, Roberto E. Cozzuol, Mario A. Canals Lambarri, Mauricio |
author_sort |
Gutstein, Carolina S. |
title |
High frequency echolocation, ear morphology, and the marine-freshwater transition: A comparative study of extant and extinct toothed whales |
title_short |
High frequency echolocation, ear morphology, and the marine-freshwater transition: A comparative study of extant and extinct toothed whales |
title_full |
High frequency echolocation, ear morphology, and the marine-freshwater transition: A comparative study of extant and extinct toothed whales |
title_fullStr |
High frequency echolocation, ear morphology, and the marine-freshwater transition: A comparative study of extant and extinct toothed whales |
title_full_unstemmed |
High frequency echolocation, ear morphology, and the marine-freshwater transition: A comparative study of extant and extinct toothed whales |
title_sort |
high frequency echolocation, ear morphology, and the marine-freshwater transition: a comparative study of extant and extinct toothed whales |
publisher |
Elsevier |
publishDate |
2014 |
url |
https://doi.org/10.1016/j.palaeo.2014.01.026 https://repositorio.uchile.cl/handle/2250/155089 |
genre |
toothed whales |
genre_facet |
toothed whales |
op_source |
Palaeogeography, Palaeoclimatology, Palaeoecology |
op_relation |
Palaeogeography, Palaeoclimatology, Palaeoecology, Volumen 400, 00310182 doi:10.1016/j.palaeo.2014.01.026 https://repositorio.uchile.cl/handle/2250/155089 |
op_rights |
Attribution-NonCommercial-NoDerivs 3.0 Chile http://creativecommons.org/licenses/by-nc-nd/3.0/cl/ |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1016/j.palaeo.2014.01.026 |
container_title |
Palaeogeography, Palaeoclimatology, Palaeoecology |
container_volume |
400 |
container_start_page |
62 |
op_container_end_page |
74 |
_version_ |
1766218084225384448 |