Departamento de Biologia Geral e Aplicada, Laboratório de Cupins, Instituto de Biociências, UNESP - Univ Estadual Paulista, Av. 24A, No. 1515, 13506-900 Rio Claro, SP, Brazil.
Bull Entomol Res. 2023 Oct;113(5):716-724. doi: 10.1017/S0007485323000421. Epub 2023 Sep 11.
Termite colony foundation precedes the incipient stage, when the first oviposition cycle takes place, followed by months of reproductive inactivity. The royal couple is supposed to cease oviposition during this period, investing energy to care for the first brood. When a suitable number of alloparents differentiate, egg-laying resumes. Here we followed oviposition dynamics, embryo development and queen/king body changes in laboratory colonies of the major pest species (Rhinotermitidae) and (Kalotermitidae) during 9 months. We show that they differ in these oviposition dynamics, as queens displayed an uninterrupted oviposition whereas laid a cohort of eggs and ceased oviposition during a 3-month period (). oviposition dynamic was remarkable and suggests that occurrence of progeny was not a limiting factor, thus queens and kings were able to concomitantly invest energy in reproduction and parental care. These findings contrast those reported for rhinotermitids from temperate areas, and we discuss the likely reasons for such a condition, including endogenous rhythms, avoidance of a high mortality rate of the first progeny and adaptation to the weather conditions of the Neotropical region. Oviposition dynamic in resembled those of several termite species, in which the royal couple cease reproduction to care for the first brood. Rearing conditions did not influence oviposition dynamics (egg-laying cycle followed by a ), thus our results on the oviposition of and correspond to different reproductive strategies post-foundation adopted by these pest species.
白蚁群体的建立先于初期阶段,此时发生第一次产卵周期,随后是数月的生殖休眠期。在这段时间里,蚁后和蚁王应该停止产卵,而是投入精力照顾第一批幼体。当有足够数量的异亲代分化出来时,产卵活动就会恢复。在这里,我们在实验室中研究了主要害虫物种(鼻白蚁科)和(木白蚁科)的群体,跟踪了 9 个月的产卵动态、胚胎发育和蚁后/蚁王身体变化。我们发现它们在产卵动态上存在差异,因为 蚁后表现出不间断的产卵行为,而 则会产下一批卵,并在 3 个月的时间内停止产卵()。这种产卵动态非常显著,表明后代的出现并不是一个限制因素,因此蚁后和蚁王能够同时投入精力进行繁殖和亲代照顾。这些发现与温带地区报道的鼻白蚁科不同,我们讨论了这种情况的可能原因,包括内源性节律、避免第一代后代的高死亡率以及对新热带地区天气条件的适应。在 中的产卵动态与几种白蚁物种相似,在这些白蚁物种中,蚁后和蚁王会停止繁殖来照顾第一批幼体。饲养条件并不影响产卵动态(产卵周期后是一个休止期),因此,我们关于 和 的产卵结果对应于这些害虫物种在群体建立后采用的不同繁殖策略。