Age, worksite location, neuromodulators, and task performance in the ant Pheidole dentata.
Age, worksite location, neuromodulators, and task performance in the ant Pheidole dentata.
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DOI：
10.1007/s00265-016-2153-8
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发表时间：
2016-09
影响因子：
2.3
通讯作者：
Traniello JF
中科院分区：
文献类型：
--
作者：
Giraldo YM;Rusakov A;Diloreto A;Kordek A;Traniello JF
社会昆虫工人修改任务的表现，根据年龄相关的时间表的行为发展，和/或改变殖民地的劳动力需求的基础上灵活的反应，可能是独立的年龄。使用已知年龄的未成年工人的蚂蚁Pheidole dentata在其140天的实验室寿命的68%，我们问是否发现工作人员在巢内或巢外的任务表现不同，如果行为与脑5-羟色胺（5 HT）和多巴胺（DA）的变化相关和/或因果关系。我们的研究结果表明，在这两个空间上不同的工作场所收集的未成年人的任务表现模式是独立的年龄。巢外未成年人表现出显着较高水平的掠夺性行为和更大的活动比巢内未成年人，但这些群体没有不同的育雏或趋光性。我们研究了5-HT和DA的关系，这些行为在已知年龄的未成年人通过量化个人的大脑滴度。这两种单胺没有显着增加，从20日龄至95日龄。DA没有出现直接调节工地的位置，虽然滴度显着高于巢内的工人在巢外。5-HT的药理学消耗不影响护理，捕食，趋光性或活动。我们的研究结果表明，工人的任务能力是独立的年龄超过20天，只有捕食行为可以一贯预测的空间位置。这可能反映了工人在每个地点收集的个人行为的灵活性或可变性，这可能受到年龄，工地位置，社会互动，神经调节剂和其他环境和内部行为调节器之间复杂相互作用的影响。
Social insect workers modify task performance according to age-related schedules of behavioral development, and/or changing colony labor requirements based on flexible responses that may be independent of age. Using known-age minor workers of the ant Pheidole dentata throughout 68% of their 140-day laboratory lifespan, we asked whether workers found inside or outside the nest differed in task performance and if behaviors were correlated with and/or causally linked to changes in brain serotonin (5HT) and dopamine (DA). Our results suggest that task performance patterns of individually assayed minors collected at these two spatially different worksites were independent of age. Outside-nest minors displayed significantly higher levels of predatory behavior and greater activity than inside-nest minors, but these groups did not differ in brood care or phototaxis. We examined the relationship of 5HT and DA to these behaviors in known-age minors by quantifying individual brain titers. Both monoamines did not increase significantly from 20 to 95 days of age. DA did not appear to directly regulate worksite location, although titers were significantly higher in outside-nest than inside-nest workers. Pharmacological depletion of 5HT did not affect nursing, predation, phototaxis or activity. Our results suggest that worker task capabilities are independent of age beyond 20 days, and only predatory behavior can be consistently predicted by spatial location. This could reflect worker flexibility or variability in the behavior of individuals collected at each location, which could be influenced by complex interactions between age, worksite location, social interactions, neuromodulators, and other environmental and internal regulators of behavior.
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影响因子：
2.3
作者：
Grueter, Christoph;Czaczkes, Tomer J.;Ratnieks, Francis L. W.
通讯作者：
Ratnieks, Francis L. W.
影响因子：
56.9
作者：
Ben-Shahar, Y;Robichon, A;Robinson, GE
通讯作者：
Robinson, GE
影响因子：
2.8
作者：
Dolezal, Adam G.;Brent, Colin S.;Amdam, Gro V.
通讯作者：
Amdam, Gro V.
影响因子：
2.3
作者：
Arnan, Xavier;Ferrandiz-Rovira, Mariona;Rodrigo, Anselm
通讯作者：
Rodrigo, Anselm
影响因子：
64.8
作者：
Bloch, G;Robinson, GE
通讯作者：
Robinson, GE