Intracolonial conflict in the slave-making ant Protomognathus americanus:: dominance hierarchies and individual reproductive success
Intracolonial conflict in the slave-making ant Protomognathus americanus:: dominance hierarchies and individual reproductive success
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DOI：
10.1007/s00040-003-0710-4
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发表时间：
2004-05-01
期刊：
影响因子：
1.3
通讯作者：
Herbers, JM
中科院分区：
文献类型：
--
作者：
Blatrix, R;Herbers, JM
社会群体的生存能力来自于合作与冲突之间的权衡，分别受到群体利益和个人利益的驱动。众所周知，造奴蚁的工人有很高的产卵潜力，这导致了在雄性生产方面的潜在冲突。美洲原母蚁（Protomognathus americanus）的母巢和无母巢表现出近似线性的优势等级，且优势等级与繁殖活动相关。基因和行为分析表明，当蚁后出现在巢穴中时，在行为上占主导地位，并垄断了繁殖。在没有蚁后的巢穴中，单倍体（雄性）的后代主要由一个工蜂生产。我们认为统治等级调节着雄性的生产，在蚁后和工蜂之间，以及工蜂之间。将我们的结果与另一项研究进行比较，使我们能够将我们的数据置于生态环境中。这种制造奴隶的蚂蚁似乎符合生殖倾斜的让步模型：在资源（即宿主巢穴）贫乏的地方，存在强烈的倾斜，而在资源丰富的地方，繁殖更加平等。
Social group viability results from a trade-off between cooperation and conflict, driven respectively by group and individual interests. Workers of the slave-making ants are known to have a high egg-laying potential, leading to a potential conflict over male production. Queenright and queenless nests of the slave-making ant Protomognathus americanus show a near-linear dominance hierarchy, and dominance rank is correlated with reproductive activity. Genetic and behavioural analysis revealed that the queen, when present in the nest, is behaviourally dominant and monopolises reproduction. In queenless nests, the haploid (male) brood is produced primarily by a single worker. We suggest the dominance hierarchy regulates male production, between the queen and her workers as well as among workers. Comparison of our results to another study allows us to place our data in an ecological context. This slave-making ant species appears to fit the concession model of reproductive skew: where resources (i.e. host nests) are poor, there is strong skew and where resources are richer reproduction is more egalitarian.