4.4 Article

The forelimbs of Octodontidae (Rodentia: Mammalia): substrate use, morphology, and phylogenetic signal

期刊

ZOOLOGY
卷 144, 期 -, 页码 -

出版社

ELSEVIER GMBH
DOI: 10.1016/j.zool.2020.125879

关键词

Caviomorpha; functional morphology; postcranial indices; skeletal morphology; substrate preference

类别

资金

  1. CONICET (Consejo Nacional de Investigaciones Cientificas y Tecnicas)

向作者/读者索取更多资源

The research found that in octodontids, variations in forelimb features were not primarily associated with phylogeny, but were highly explanatory in terms of function, effectively distinguishing between animals living in epigean and subterranean habitats. Specific features observed in the humerus and ulna indicated adaptive trends in octodontids similar to those found in other mammals.
Rodents of the family Octodontidae, endemic to South America, represent a group with low taxonomic richness group (six genera and 14 species) but have great ecomorphological diversity with epigean, semi-fossorial, fossorial, and subterranean forms. We analyzed morphometric variation in humerus and ulna, the possible relationship with substrate preference use, and the presence of a phylogenetic signal in the forelimbs traits (five biomechanical indices). Our results show that, in octodontids, the forelimb variation was not primarily associated with their phylogeny and some attributes are highly explanatory in terms of function, with a clear differentiation between the substrate use gradient extremes (i.e. epigean and subterranean forms). The two forelimb traits, the development of humeral epicondyles and the olecranon process of the ulna, indicative of adaptive trends found in Octodontidae are consistent with most of those described for other mammals and corroborate the relevance of forelimb characters to differentiate modes of locomotion or substrate preferences.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.4
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据