Behavioural plasticity in the fanning response of bumblebee workers: impact of experience and rate of temperature change
Behavioural plasticity in the fanning response of bumblebee workers: impact of experience and rate of temperature change
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大黄蜂工蜂扇动反应的行为可塑性：经验和温度变化率的影响
DOI：
10.1016/j.anbehav.2012.10.003
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发表时间：
2013
期刊：
影响因子：
2.5
通讯作者：
A. Weidenmüller
中科院分区：
文献类型：
--
作者：
C. Westhus;C. Kleineidam;F. Roces;A. Weidenmüller
灵活的劳动分工是群居昆虫的一个重要特征。我们对个体反应行为的理解，以及它是如何整合到一个正常运作的群体中的，仍然是不完整的。解决这个问题的大多数理论研究都是基于这样一个假设，即工人对任务相关的刺激有内在的，往往是固定的反应阈值。在这里，我们调查了可塑性工人煽动反应行为的大黄蜂，熊蜂terrestris。使用温度控制育雏假人，我们首先问是否扇响应调制的温度变化率。第二，我们研究了在何种程度上的煽动反应是由最近的煽动经验的影响。我们的研究结果表明，个人扇响应调制的温度上升的速度和最近的经验。工人在较低的温度和更高的概率时，育雏假人的温度增加缓慢相比，更快速的温度增加。工人反复响应育雏假温度与扇风增加表现出显着的反应阈值下降，而控制工人经历了相同的治疗，但没有收集扇风经验的反应阈值保持不变。当两次扇风事件之间的时间间隔小于6h时，反应阈值明显降低。当扇风间隔时间超过16h时，个体扇风反应恢复到较高的阈值水平。我们认为，经验依赖性调制的反应阈值起着重要的作用，在工人的行为分化和昆虫群体的灵活性。
Flexible division of labour is a key feature of social insects. Our understanding of individual response behaviour and how it is integrated into a functioning colony is still patchy. Most theoretical studies addressing this question are based on the assumption that workers have intrinsic and often fixed response thresholds for task-related stimuli. Here, we investigated the plasticity in worker fanning response behaviour in a bumblebee, Bombus terrestris. Using a temperature-controlled brood dummy, we first asked whether the fanning response is modulated by rate of temperature change. Second, we examined to what extent the fanning response is influenced by recent fanning experience. Our results show that the individual fanning response is modulated by both the rate of temperature increase and recent experience. Workers responded at lower temperatures and with a higher probability when the temperature of the brood dummy increased slowly compared with more rapid temperature increases. Workers that repeatedly responded to an increase in brood dummy temperature with fanning showed a significant decrease in their response thresholds, whereas the response thresholds of control workers that experienced the same treatment but did not gather fanning experience remained unchanged. The decrease in response threshold was pronounced when the time interval between two successive fanning events was less than 6h. When 16h or more separated fanning events, individual fanning responses returned to higher threshold levels. We suggest that experience-dependent modulation of response thresholds plays an important role in the behavioural differentiation of workers and the flexibility of insect colonies.
影响因子：
2.8
作者：
Robinson, Elva J. H.;Feinerman, Ofer;Franks, Nigel R.
通讯作者：
Franks, Nigel R.