Journal of Veterinary Medical Science
Online ISSN : 1347-7439
Print ISSN : 0916-7250
ISSN-L : 0916-7250
Wildlife Science
Prenatal postcranial development in two species of sympatric Japanese wood mice (Apodemus argenteus and A. speciosus): a comparison of arboreal versus terrestrial congeners
Daisuke KOYABU
著者情報
キーワード: adaptation, anatomy, evodevo, prenatal, rodents
ジャーナル フリー

2017 年 79 巻 5 号 p. 952-956

詳細
抄録

Habitats of two closely related Japanese field mice, Apodemus argenteus and A. speciosus, broadly overlap in many Japanese forests. A. argenteus being more arboreal and A. speciosus being more terrestrial, it is thought that such ecological segregation allows their sympatric distribution. Comparing these two congeners, whether ecological difference is reflected in postcranial development was examined. Although overall ossification sequences were virtually identical, development of the caudal vertebrae was remarkably earlier in A. argenteus. One of the clearest morphological differences between the two species is the relative length of the tail, which is arguably related to the degree of arboreality. I suggest that accelerated ossification of the caudal vertebrae found in A. argenteus is related to its elongation of the tail.

著者関連情報
© 2017 by the Japanese Society of Veterinary Science

この記事はクリエイティブ・コモンズ [表示 - 非営利 - 改変禁止 4.0 国際]ライセンスの下に提供されています。
https://creativecommons.org/licenses/by-nc-nd/4.0/deed.ja
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