Rostrum morphology and feeding strategy of the baleen whale indicate that right whales and pygmy right whales became skimmers independently
Baleen whales have lost their functional teeth and begun to use their baleen plates to feed on small prey. Modern baleen whales exhibit different types of feeding strategies, such as lunging, skimming and so on. The evolution of feeding strategy in the Chaeomysticeti is an important step in consider...
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ftpubmed:oai:pubmedcentral.nih.gov:9682309 2023-05-15T15:36:56+02:00 Rostrum morphology and feeding strategy of the baleen whale indicate that right whales and pygmy right whales became skimmers independently Tanaka, Yoshihiro 2022-11-23 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9682309/ https://doi.org/10.1098/rsos.221353 en eng The Royal Society http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9682309/ http://dx.doi.org/10.1098/rsos.221353 © 2022 The Authors. https://creativecommons.org/licenses/by/4.0/Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, provided the original author and source are credited. CC-BY R Soc Open Sci Organismal and Evolutionary Biology Text 2022 ftpubmed https://doi.org/10.1098/rsos.221353 2022-11-27T01:55:22Z Baleen whales have lost their functional teeth and begun to use their baleen plates to feed on small prey. Modern baleen whales exhibit different types of feeding strategies, such as lunging, skimming and so on. The evolution of feeding strategy in the Chaeomysticeti is an important step in considering niche partitioning and diversification, feeding efficiency and gigantism, and evolution and extinction. This study analyses the rostrum morphology to test the hypothesis that specific rostral morphologies facilitate special feeding strategies, using modern species and their observed feeding strategies. By this means, the convergence of rostral morphology can be recognized in the closest groups in the morphospace. As a result, the two linages (Balaenidae and Caperea marginata) are recognized to have convergent rostral morphology. In addition, an early member of the Chaeomysticeti, Yamatocetus canaliculatus, and most fossil species are plotted in or close to the cluster of lunge feeders. The original feeding strategy of the Chaeomysticeti could be more similar to lunge feeding than to skim feeding. Fossil relatives of the two linages showing transitional conditions indicate that they shifted to skim feeding independently. The evolution of the feeding strategy of the Chaeomysticeti is possibly more complex than that was thought. Text baleen whale baleen whales PubMed Central (PMC) Royal Society Open Science 9 11 |
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Organismal and Evolutionary Biology |
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Organismal and Evolutionary Biology Tanaka, Yoshihiro Rostrum morphology and feeding strategy of the baleen whale indicate that right whales and pygmy right whales became skimmers independently |
topic_facet |
Organismal and Evolutionary Biology |
description |
Baleen whales have lost their functional teeth and begun to use their baleen plates to feed on small prey. Modern baleen whales exhibit different types of feeding strategies, such as lunging, skimming and so on. The evolution of feeding strategy in the Chaeomysticeti is an important step in considering niche partitioning and diversification, feeding efficiency and gigantism, and evolution and extinction. This study analyses the rostrum morphology to test the hypothesis that specific rostral morphologies facilitate special feeding strategies, using modern species and their observed feeding strategies. By this means, the convergence of rostral morphology can be recognized in the closest groups in the morphospace. As a result, the two linages (Balaenidae and Caperea marginata) are recognized to have convergent rostral morphology. In addition, an early member of the Chaeomysticeti, Yamatocetus canaliculatus, and most fossil species are plotted in or close to the cluster of lunge feeders. The original feeding strategy of the Chaeomysticeti could be more similar to lunge feeding than to skim feeding. Fossil relatives of the two linages showing transitional conditions indicate that they shifted to skim feeding independently. The evolution of the feeding strategy of the Chaeomysticeti is possibly more complex than that was thought. |
format |
Text |
author |
Tanaka, Yoshihiro |
author_facet |
Tanaka, Yoshihiro |
author_sort |
Tanaka, Yoshihiro |
title |
Rostrum morphology and feeding strategy of the baleen whale indicate that right whales and pygmy right whales became skimmers independently |
title_short |
Rostrum morphology and feeding strategy of the baleen whale indicate that right whales and pygmy right whales became skimmers independently |
title_full |
Rostrum morphology and feeding strategy of the baleen whale indicate that right whales and pygmy right whales became skimmers independently |
title_fullStr |
Rostrum morphology and feeding strategy of the baleen whale indicate that right whales and pygmy right whales became skimmers independently |
title_full_unstemmed |
Rostrum morphology and feeding strategy of the baleen whale indicate that right whales and pygmy right whales became skimmers independently |
title_sort |
rostrum morphology and feeding strategy of the baleen whale indicate that right whales and pygmy right whales became skimmers independently |
publisher |
The Royal Society |
publishDate |
2022 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9682309/ https://doi.org/10.1098/rsos.221353 |
genre |
baleen whale baleen whales |
genre_facet |
baleen whale baleen whales |
op_source |
R Soc Open Sci |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9682309/ http://dx.doi.org/10.1098/rsos.221353 |
op_rights |
© 2022 The Authors. https://creativecommons.org/licenses/by/4.0/Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, provided the original author and source are credited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1098/rsos.221353 |
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Royal Society Open Science |
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9 |
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11 |
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1766367383062052864 |