Trade-off between motor performance and behavioural flexibility in the action selection of cricket escape behaviour
Trade-off between motor performance and behavioural flexibility in the action selection of cricket escape behaviour
复制标题
蟋蟀逃跑行为动作选择中运动性能和行为灵活性的权衡
DOI：
10.1038/s41598-019-54555-7
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发表时间：
2019
影响因子：
4.6
通讯作者：
Ogawa Hiroto
中科院分区：
文献类型：
--
作者：
Sato Nodoka;Shidara Hisashi;Ogawa Hiroto
为了成功地从捕食者的攻击中幸存下来，动物会从多种逃跑反应中选择适当的行动。逃避反应的运动表现决定着成功的生存，这意味着逃避行为中的动作选择是基于竞争行为利益之间的权衡。因此，运动表现的定量评估将揭示决策的生物学基础。为了探索动作选择背后的权衡，我们重点研究了蟋蟀两种不同的由风引起的逃生反应：奔跑和跳跃。我们首先假设速度和方向精度之间的权衡。这个假设被拒绝了，因为蟋蟀在跳跃时可以像跑步一样精确地控制逃跑方向；此外，跳跃在逃生速度方面具有优势。接下来，我们假设行为灵活性，包括对额外捕食者攻击的反应，作为跑步的好处。双刺激实验表明，与选择跳跃作为第一反应时相比，在第一反应中奔跑的蟋蟀可以更频繁地对第二刺激作出反应，并更精确地控制运动方向。这些数据表明，不仅运动表现而且后续行为的未来适应性都被视为行为效益，这可用于选择适当的逃避反应。
To survive a predator’s attack successfully, animals choose appropriate actions from multiple escape responses. The motor performance of escape response governs successful survival, which implies that the action selection in escape behaviour is based on the trade-off between competing behavioural benefits. Thus, quantitative assessment of motor performance will shed light on the biological basis of decision-making. To explore the trade-off underlying the action selection, we focused on two distinct wind-elicited escape responses of crickets, running and jumping. We first hypothesized a trade-off between speed and directional accuracy. This hypothesis was rejected because crickets could control the escape direction in jumping as precisely as in running; further, jumping had advantages with regard to escape speed. Next, we assumed behavioural flexibility, including responsiveness to additional predator’s attacks, as a benefit of running. The double stimulus experiment revealed that crickets running in the first response could respond more frequently to a second stimulus and control the movement direction more precisely compared to when they chose jumping for the first response. These data suggest that not only the motor performance but also the future adaptability of subsequent behaviours are considered as behavioural benefits, which may be used for choosing appropriate escape reactions.