Semicircular Canal Size and Locomotion in Colobine Monkeys: A Cautionary Tale
Semicircular Canal Size and Locomotion in Colobine Monkeys: A Cautionary Tale
复制标题
疣猴的半规管大小和运动:一个警示故事
DOI:
10.1159/000449286
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发表时间:
2016
影响因子:
1.9
通讯作者:
Hirasaki E.
中科院分区:
文献类型:
--
作者:
Rae TC;Johnson PM;Yano W;Hirasaki E.
The semicircular canals of the inner ear constitute the organ of balance, tracking head rotation during movement and facilitating stabilisation of vision. Morphological characteristics of the canals are correlated with agility scores related to locomotion. To date, however, the relationship between canal morphology and specific locomotor behaviours, such as leaping, is unclear. Knowledge of such a relationship could strengthen the inferences of locomotion of extinct taxa. To test this, crania of two sets of closely related primate species (Presbytis melalophos and P. potenziani; Colobus guereza and C. polykomos) that differ in the percentage of leaping in their locomotor repertoire were examined using microscopic computed tomography. Three-dimensional virtual models of the bony labyrinth were derived, and the radius of curvature of each of the three canals was evaluated relative to cranial size. The findings are contradictory; one leaping form (P. melalophos) differs from its congener in possessing significantly larger lateral canals, a pattern seen in previous studies of primates, while the other leaper (C. guereza) has significantly smaller posterior canals than its close relative. These results undermine efforts to determine specific locomotor behaviours from the bony labyrinth of extinct primates.
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影响因子:
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作者:
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通讯作者:
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DOI:
--
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2012
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2003
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