Reversion in honeybee, Apis mellifera, workers with different life expectancies
Reversion in honeybee, Apis mellifera, workers with different life expectancies
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DOI：
10.1016/j.anbehav.2012.10.033
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发表时间：
2013-01-01
期刊：
影响因子：
2.5
通讯作者：
Woyciechowski, Michal
中科院分区：
文献类型：
--
作者：
Kuszewska, Karolina;Woyciechowski, Michal
根据蜂群的年龄分工，工蜂首先参与安全的巢内任务，然后转向危险的巢外觅食。然而，蜜蜂在行为发育过程中表现出很大的可塑性：它们的蜂巢到野外的过渡可以根据蜂群条件或环境因素的变化而加速、延迟甚至逆转。在哺育蜜蜂的蜜蜂被从蜂群中移走后，年轻的觅食蜂比年长的觅食蜂更有可能恢复哺育蜜蜂的状态。“分工风险”假说预测，这不是工人的年龄，但他们的预期寿命的影响是否觅食返回巢内活动。我们通过将相同年龄的蜜蜂工人在开始觅食后分为三组来测试这一预测。对照组工人不接受治疗。其他两组的预期寿命缩短与二氧化碳麻醉或受伤。在笼子里的实验中，我们发现，控制蜜蜂有一个更长的预期寿命比麻醉和受伤的工人，而在现场实验中，控制工人，有一个更长的预期寿命，被证明更有可能恢复到护理比麻醉和受伤的工人相同的年龄。行为逆转伴随着卵巢发育和下咽腺肥大。这些结果支持了测试的假设，分工在真社会性昆虫的预期工人寿命和差异的风险与巢内和巢外任务的差异是一个后果。(C)2012年，动物行为研究协会。由爱思唯尔有限公司出版。保留所有权利。
Under the age-related division of labour of a honeybee colony, workers participate first in safe inside-nest tasks and then switch to risky outside-nest foraging. However, honeybees show great plasticity during behavioural development: their hive-to-field transition can be accelerated, delayed or even reversed in response to changes in colony conditions or environmental factors. After nursing bees are removed from a colony, younger foragers are more likely to revert to nursing than older ones. The 'division of labour by division of risk' hypothesis predicts that it is not the workers' age but their life expectancy that influences whether or not foragers return to inside-nest activity. We tested this prediction by dividing same-age honeybee workers into three groups after they started foraging. Workers in the control group were not treated. The life expectancy of the other two groups was shortened with carbon dioxide anaesthesia or by injury. In a cage experiment we showed that control bees had a longer expected life span than anaesthetized and injured workers, while in a field experiment the control workers, with a longer expected life span, proved more likely to revert to nursing than anaesthetized and injured workers of the same age. Behavioural reversion was accompanied by ovary development and hypertrophy of the hypopharyngeal glands. These results support the tested hypothesis that the division of labour in eusocial insects is a consequence of differences in expected worker life span and differences in the risks associated with inside-nest and outside-nest tasks. (C) 2012 The Association for the Study of Animal Behaviour. Published by Elsevier Ltd. All rights reserved.