The Effect of Dietary Adaption on Cranial Morphological Integration in Capuchins (Order Primates, Genus Cebus)
The Effect of Dietary Adaption on Cranial Morphological Integration in Capuchins (Order Primates, Genus Cebus)
复制标题
饮食适应对卷尾猴（灵长目，宿务属）颅骨形态整合的影响
作者：
Jana Makedonska;B. Wright;D. Strait
形态学的一个基本挑战是确定导致相关表型性状的潜在进化和发育机制。形态整合的模式和幅度及其与环境变量的关联对于理解复杂表型的进化至关重要，但相关选择压力的性质仍然知之甚少。在这项研究中，形态整合的适应意义进行了评估之间的联系，摄食力学，摄食行为和颅面的变化。本研究共调查了五种卷尾猴，分别是狭义卷尾猴、性欲卷尾猴、黑卷尾猴、橄榄卷尾猴和白额卷尾猴。选择20个三维地标来采样进食期间经历高应变的面部区域、影响肌肉机械优势的特征和颅底区域。整合结构和幅度之间和内部的口腔和embryomatic亚基，之间和块内最大限度地提高模块化和内的脸，basicranium和颅骨进行了检查，使用偏最小二乘法，特征值方差，整合指数之间进行比较，具体在一个共同的水平抽样人口方差和聚类分析。结果是一致的，与以前的研究结果报告的相对恒定的面部和颅骨的相关模式在哺乳动物，而协方差大小不同。结果进一步表明，食品材料的性能结构之间的功能链接的面部元素的整合，并可能整合之间的脸和basicranium。以硬物为食的卷尾猴，尤其是卷尾猴，其面部经历特别高的生物力学负荷，其特征在于更高的面部和颅整合，特别是与C.albifrons相比，可能是因为在依赖于顽固的后备食物的物种中选择了损害进食性能的形态型。这是第一项报告食物材料特性与面部和颅骨整合之间联系的研究。此外，结果并没有确定一致存在的颅骨模块产生支持的建议，尽管其元素的胎盘哺乳动物的颅骨的独特胚胎学印记是不具有模块化的架构。
A fundamental challenge of morphology is to identify the underlying evolutionary and developmental mechanisms leading to correlated phenotypic characters. Patterns and magnitudes of morphological integration and their association with environmental variables are essential for understanding the evolution of complex phenotypes, yet the nature of the relevant selective pressures remains poorly understood. In this study, the adaptive significance of morphological integration was evaluated through the association between feeding mechanics, ingestive behavior and craniofacial variation. Five capuchin species were examined, Cebus apella sensu stricto, Cebus libidinosus, Cebus nigritus, Cebus olivaceus and Cebus albifrons. Twenty three-dimensional landmarks were chosen to sample facial regions experiencing high strains during feeding, characteristics affecting muscular mechanical advantage and basicranial regions. Integration structure and magnitude between and within the oral and zygomatic subunits, between and within blocks maximizing modularity and within the face, the basicranium and the cranium were examined using partial-least squares, eigenvalue variance, integration indices compared inter-specifically at a common level of sampled population variance and cluster analyses. Results are consistent with previous findings reporting a relative constancy of facial and cranial correlation patterns across mammals, while covariance magnitudes vary. Results further suggest that food material properties structure integration among functionally-linked facial elements and possibly integration between the face and the basicranium. Hard-object-feeding capuchins, especially C.apella s.s., whose faces experience particularly high biomechanical loads are characterized by higher facial and cranial integration especially compared to C.albifrons, likely because morphotypes compromising feeding performance are selected against in species relying on obdurate fallback foods. This is the first study to report a link between food material properties and facial and cranial integration. Furthermore, results do not identify the consistent presence of cranial modules yielding support to suggestions that despite the distinct embryological imprints of its elements the cranium of placental mammals is not characterized by a modular architecture.
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影响因子：
4.1
作者：
MORI, S;BURR, DB
通讯作者：
BURR, DB
楔形卷尾猴（Cebus olivaceus）的个体饮食选择模式和觅食效率。
DOI：
10.1037/0735-7036.109.4.339
发表时间：
1995
期刊：
Journal of comparative psychology (Washington, D.C. : 1983)
影响因子：
--
作者：
Fragaszy,DorothyM;Boinski,Sue
通讯作者：
Boinski,Sue
影响因子：
3.6
作者：
Spector, JA;Greenwald, JA;Longaker, MT
通讯作者：
Longaker, MT
影响因子：
4.1
作者：
Bentolila, V;Boyce, TM;Schaffler, MB
通讯作者：
Schaffler, MB