Feeding Ontogeny at the Interface of Behavior and Morphology

行为与形态学界面的摄食个体发育

• 批准号: 2316863
• 负责人: Myra Laird
• 金额: $ 7.54万
• 依托单位: University of Pennsylvania
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-05-15 至 2024-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2316863&HistoricalAwards=false
• 关键词: Feeding; Ontogeny; Interface; Behavior; Morphology

This research will integrate research on the physical properties of food, the behaviors individuals use while opening and eating foods, and jaw muscle mechanics across a range of ages in two primate species, shedding light on how anatomy and behavior interact to influence feeding performance during important developmental milestones. Results of this research will improve our understanding of how selection for particular feeding behavior strategies during development shapes adult feeding behavior and related musculoskeletal anatomy. Additionally, the findings may inform models for understanding and reconstructing behavior from fossil primates and hominins. The project will foster international research collaborations, provide STEM training opportunities for a female postdoctoral scientist and multiple undergraduate and graduate students, and support four early-career female scientists. Results will be used to develop primate behavior and anatomy exercises for K-12 students and provide training for K-12 teachers to effectively deliver those exercises. Furthermore, findings from this research will be relevant to conservation and community outreach efforts at the field sites. This study will integrate diverse datasets to test primate feeding system form-function hypotheses. The central goal of the proposed research is to examine how immature primates cope with feeding performance constraints, such as maximum jaw gape and bite force, during ontogeny. To address this goal, this study will compare feeding system development in two related primate species, one that exploits hard, tough and relatively large foods, and one that eats smaller, less mechanically-challenging foods. Specifically this project will: 1) integrate experimental and ecological data addressing developmental shifts in food properties, feeding behavior, and feeding system function and morphology in closely related primate species; 2) establish functional relationships between diet and morphology in immature primates to examine how selection for particular feeding behaviors during development relates to adult morphologies and maintains feeding performance throughout ontogeny; and 3) integrate data on feeding system skeletal morphology with data on critical determinants of feeding system performance, including food properties, bite force, and gape. These results contribute to our understanding of extant primate ecomorphology and also provide an integrated model for the appearance and differentiation of diet-driven morphology in fossil taxa.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

这项研究将整合对食物的物理特性、个体打开和吃食物时的行为以及两种灵长类动物不同年龄段的下颌肌肉力学的研究，揭示解剖学和行为如何相互作用以影响重要时期的进食表现。发展里程碑。这项研究的结果将提高我们对发育过程中特定摄食行为策略的选择如何影响成年摄食行为和相关肌肉骨骼解剖结构的理解。此外，这些发现可能为理解和重建灵长类化石和古人类行为的模型提供信息。该项目将促进国际研究合作，为一名女博士后科学家和多名本科生和研究生提供 STEM 培训机会，并为四名早期职业女性科学家提供支持。研究结果将用于为 K-12 学生开发灵长类动物行为和解剖学练习，并为 K-12 教师提供有效开展这些练习的培训。此外，这项研究的结果将与现场的保护和社区外展工作相关。这项研究将整合不同的数据集来测试灵长类动物进食系统的形式功能假设。该研究的中心目标是研究未成熟的灵长类动物在个体发育过程中如何应对进食性能限制，例如最大下巴张开和咬合力。为了实现这一目标，这项研究将比较两种相关灵长类动物的进食系统发育，一种吃坚硬、坚韧和相对较大的食物，另一种吃较小的、机械挑战性较小的食物。 具体来说，该项目将：1）整合实验和生态数据，解决密切相关的灵长类物种的食物特性、摄食行为、摄食系统功能和形态的发育变化； 2）建立未成熟灵长类动物的饮食和形态之间的功能关系，以研究发育过程中特定摄食行为的选择如何与成年形态相关，并在整个个体发育过程中维持摄食性能； 3) 将饲喂系统骨骼形态数据与饲喂系统性能关键决定因素（包括食物特性、咬合力和张口）数据整合起来。这些结果有助于我们对现存灵长类动物生态形态学的理解，也为化石类群中饮食驱动形态的出现和分化提供了一个综合模型。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力价值进行评估，被认为值得支持以及更广泛的影响审查标准。

项目成果

Ontogenetic changes in bite force and gape in tufted capuchins

• DOI: 10.1242/jeb.245972
• 发表时间: 2023-08-01
• 期刊: JOURNAL OF EXPERIMENTAL BIOLOGY
• 影响因子: 2.8
• 作者: Laird，Myra F.;Kanno，Claprimeudia Misue;de Oliveira，Jose Americo
• 通讯作者: de Oliveira，Jose Americo