Overcoming obstacles: the effect of obstacles on locomotor performance and behaviour
Overcoming obstacles: the effect of obstacles on locomotor performance and behaviour
复制标题
克服障碍：障碍对运动表现和行为的影响
DOI：
--
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
L. McBrayer
中科院分区：
文献类型：
--
作者：
D. Tucker;L. McBrayer
短跑和跳跃能力是脊椎动物中被广泛研究的关键性能指标。然而，这些研究中的绝大多数使用的方法缺乏生态背景，没有考虑到许多动物生活的复杂栖息地。由于成功地导航复杂的栖息地内的障碍物是至关重要的捕食者逃跑，运行，攀爬，和/或跳跃性能都可能暴露于选择。在本研究中，我们量化的行为策略和运动性能的变化与障碍物的高度增加。障碍物的大小对行为（例如，跨越障碍的策略，间歇运动）和性能（例如，短跑速度，跳跃距离）有显着的影响。跳跃的频率和距离随着障碍物的大小而增加，这表明它可能是因为它更有效率而进化的（即它减少了到达目标位置所需的时间和距离）。跳跃角度，跳跃速度，和接近速度占58%的跳跃距离的变化，在大障碍，33%的小障碍。虽然这些变量已被证明是显着影响静态跳跃的跳跃距离，他们似乎并没有在运行（动态）跳到一个小障碍的影响。由于选择在简单和复杂的栖息地中进行，因此未来的研究应该考虑量化其他措施，如跳跃或攀爬，以促进运动性能的进化。© 2012 The Linnean Society of伦敦，Biological Journal of the Linnean Society，2012，··，··-··。
Sprinting and jumping ability are key performance measures that have been widely studied in vertebrates. The vast majority of these studies, however, use methodologies that lack an ecological context by failing to consider the complex habitats in which many animals live. Because successfully navigating obstacles within complex habitats is critical for predator escape, running, climbing, and/or jumping performance are each likely to be exposed to selection. In the present study, we quantify how behavioural strategies and locomotor performance change with increasing obstacle height. Obstacle size had a significant influence on behaviour (e.g. obstacle crossing strategy, intermittent locomotion) and performance (e.g. sprint speed, jump distance). Jump frequency and distance increased with obstacle size, suggesting that it likely evolved because it is more efficient (i.e. it reduces the time and distance required to reach a target position). Jump angle, jump velocity, and approach velocity accounted for 58% of the variation in jump distance on the large obstacle, and 33% on the small obstacle. Although these variables have been shown to significantly influence jump distance in static jumps, they do not appear to be influential in running (dynamic) jumps onto a small obstacle. Because selection operates in simple and complex habitats, future studies should consider quantifying additional measures such as jumping or climbing with respect to the evolution of locomotion performance. © 2012 The Linnean Society of London, Biological Journal of the Linnean Society, 2012, ••, ••–••.
影响因子：
56.9
作者：
LUTZ, GJ;ROME, LC
通讯作者：
ROME, LC
用高速电影胶片测量水蛙的跳跃性能。
DOI：
10.1242/jeb.188.1.131
发表时间：
1994
期刊：
The Journal of experimental biology
影响因子：
--
作者：
Marsh,RL;John-Alder,HB
通讯作者：
John-Alder,HB
DOI：
10.1152/ajpcell.1996.271.2.c563
发表时间：
1996-08-01
影响因子：
5.5
作者：
Lutz, GJ;Rome, LC
通讯作者：
Rome, LC