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Farewell to life on land – thoracic strength as a new indicator to determine paleoecology in secondary aquatic mammals
http://hdl.handle.net/2237/25631
http://hdl.handle.net/2237/25631b8515022-55c8-4795-badb-d7ad9906dd23
| 名前 / ファイル | ライセンス | アクション |
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Ando_Fujiwara_2016.pdf ファイル公開：2017/12/01 (815.3 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2017-02-24 | |||||
| タイトル | ||||||
| タイトル | Farewell to life on land – thoracic strength as a new indicator to determine paleoecology in secondary aquatic mammals | |||||
| 言語 | en | |||||
| 著者 |
Ando, Konami
× Ando, Konami× Fujiwara, Shin-ichi |
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| アクセス権 | ||||||
| アクセス権 | open access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
| 権利 | ||||||
| 言語 | en | |||||
| 権利情報 | This is the peer reviewed version of the following article: [Ando, K. and Fujiwara, S.-i. (2016), Farewell to life on land – thoracic strength as a new indicator to determine paleoecology in secondary aquatic mammals. J. Anat., 229: 768–777. doi:10.1111/joa.12518], which has been published in final form at [http://doi.org/10.1111/joa.12518]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Habitat shifts from land to water have occurred independently in several mammal lineages. However, because we do not know completely about the relationship between skeletal morphology and function, both reliable life reconstructions of each extinct taxon and the timing of those shifts in locomotor strategies are yet to be fully understood. We estimated the strengths of rib cages against vertical compression in 26 extant and four extinct mammal specimens including cetartiodactyls, paenungulates, and carnivorans, representing 11 terrestrial, six semi-aquatic, and nine obligate aquatic taxa. Our analyses of extant taxa showed that strengths were high among terrestrial/semi-aquatic mammals, whose rib cages are subjected to vertical compression during the support on land, whereas strengths were low among obligate aquatic mammals, whose rib cages are not subjected to antigravity force in the water. We therefore propose rib strength as a new index to estimate the ability of an animal to be supported on land while being supported by either the forelimbs or thoracic region. According to our analyses of extinct taxa, this ability to be supported on land was rejected for a basal cetacean (Cetartiodactyla: Ambulocetus) and two desmostylians (Paenungulata: Paleoparadoxia and Neoparadoxia). However, this ability was not rejected for one desmostylian species (Desmostylus). Further study of the ribs of extant/extinct semi-aquatic taxa may help in understanding the ecological shifts in these groups. | |||||
| 言語 | en | |||||
| 出版者 | ||||||
| 出版者 | Wiley | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| 出版タイプ | ||||||
| 出版タイプ | AM | |||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
| DOI | ||||||
| 関連タイプ | isVersionOf | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.1111/joa.12518 | |||||
| ISSN | ||||||
| 収録物識別子タイプ | PISSN | |||||
| 収録物識別子 | 0021-8782 | |||||
| 書誌情報 |
en : Journal of Anatomy 巻 229, 号 6, p. 768-777, 発行日 2016-12 |
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| 著者版フラグ | ||||||
| 値 | author | |||||
| URI | ||||||
| 識別子 | http://doi.org/10.1111/joa.12518 | |||||
| 識別子タイプ | DOI | |||||
| URI | ||||||
| 識別子 | http://hdl.handle.net/2237/25631 | |||||
| 識別子タイプ | HDL | |||||
