Research Starter Grant: Scaling of Walking Mechanics in Dogs
研究启动资金:狗行走力学的扩展
基本信息
- 批准号:1032371
- 负责人:
- 金额:$ 5万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2010
- 资助国家:美国
- 起止时间:2010-07-01 至 2011-06-30
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The management of energy use is critically important in the lives of animals, and consequently understanding how energy is used when animals walk is a major goal in evolutionary biology. Although many animals have been shown to achieve high levels of energetic efficiency while walking and running by using energy saving mechanisms, it is possible that in some situations other needs prevent animals from saving energy. For example, the need to maintain stability while walking on branches or the need to approach a prey item without being detected may have greater survival consequences than increased energy use. A comparison of walking energetics between members of the dog and cat families provides an ideal opportunity to investigate some of these performance tradeoffs in detail. Previous research has revealed that domestic cats walk inefficiently compared to domestic dogs and that footfall patterns that promote stability contribute to this poor energy recovery. In contrast, dogs have been found to be highly energetically efficient while walking. These differences may be associated with differences in hunting strategy or simply body size. By using a combination of force plate measurements, motion analysis, and measurements of oxygen uptake on dogs of different sizes, this project will begin to dissect the effects of hunting style and body size on the energetics of walking.Florida International University is an urban, Latino majority research institution with a high proportion of first-generation college students. Opportunities will be made available for women, minorities and other underrepresented groups as undergraduate research assistants, graduate students, and postdoctoral researchers.
能量使用的管理在动物的生活中至关重要,因此了解动物行走时如何使用能量是进化生物学的主要目标。 虽然许多动物在行走和跑步时通过使用节能机制实现了高水平的能量效率,但在某些情况下,其他需求可能会阻止动物节省能量。 例如,在树枝上行走时需要保持稳定性,或者需要在不被发现的情况下接近猎物,这可能比增加能量消耗带来更大的生存后果。狗和猫家庭成员之间的步行能量比较提供了一个理想的机会,详细调查这些性能的权衡。 先前的研究表明,与家犬相比,家猫走路效率低下,促进稳定性的脚步模式导致这种能量恢复不良。 相比之下,已经发现狗在行走时能量效率很高。这些差异可能与狩猎策略或简单的身体大小的差异有关。 通过使用组合的力板测量,运动分析,并对不同大小的狗的摄氧量的测量,该项目将开始解剖狩猎风格和身体大小对行走的能量学的影响。佛罗里达国际大学是一个城市,拉丁美洲人占多数的研究机构,第一代大学生的比例很高。妇女、少数民族和其他代表性不足的群体将有机会担任本科生研究助理、研究生和博士后研究人员。
项目成果
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