Determinants of worker reproduction in queenless colonies of the ant Temnothorax crassispinus (K ARAVAIEV , 1926) (Hymenoptera: Formicidae)
Determinants of worker reproduction in queenless colonies of the ant Temnothorax crassispinus (K ARAVAIEV , 1926) (Hymenoptera: Formicidae)
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Temnothorax crassispinus 蚂蚁无蚁群中工蚁繁殖的决定因素（K ARAVAIEV，1926）（膜翅目：蚁科）
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通讯作者：
Jürgen H Einze
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作者：
M. E. L. ;EL M.A.ABD;Jürgen H Einze
在昆虫社会中，蚁后和工蚁之间的生殖分工往往依赖于一个复杂的自我约束和相互监督的系统。在失去蜂王后，许多社会性昆虫的工蜂很快开始从未受精的卵中产生自己的儿子。在蚂蚁Temnothorax crassispinus（K ARAVAIEV，1926）中，无女王殖民地中工人之间的生殖分工是通过建立社会等级来维持的，只有顶级工人才开始繁殖。在这里，我们调查，哪些因素决定了工人是否成为主导或不和有多少工人每个殖民地产卵。来自44个殖民地的3300多个个体的解剖表明，具有高于平均水平的间体长度和/或每个卵巢的卵巢管数量较高（“intercastes”）的工人往往比其他工人具有更好的卵巢发育。卵层的数量略有增加，与殖民地的大小，和多达7个工人每个殖民地的大，成熟的卵母细胞延长卵巢管。
Reproductive division of labor between queens and workers in insect societies often relies on a complex system of self-restraint and mutual policing. After queen loss, workers of many social insects quickly begin to produce their own sons from unfertilized eggs. In the ant Temnothorax crassispinus (K ARAVAIEV , 1926), reproductive division of labor among workers in queenless colonies is maintained through the establishment of social hierarchies in which only top-ranking workers start to reproduce. Here, we investigate, which factors determine whether a worker becomes dominant or not and how many workers per colony lay eggs. Dissection of more than 3300 individuals from 44 colonies showed that workers with above-average mesosoma length and / or a higher number of ovarioles per ovary ("intercastes") tended to have better developed ovaries than other workers. The number of egg layers increased slightly with colony size, and up to seven workers per colony had elongated ovarioles with large, maturing oocytes.