On the reproductive strategies post-colony foundation: major termite pest species with distinct ecological habits differ in their oviposition dynamics.

IF 1.6 3区 农林科学 Q2 ENTOMOLOGY
Bulletin of Entomological Research Pub Date : 2023-10-01 Epub Date: 2023-09-11 DOI:10.1017/S0007485323000421
Iago Bueno da Silva, Ana Maria Costa-Leonardo
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引用次数: 0

Abstract

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 Coptotermes gestroi (Rhinotermitidae) and Cryptotermes brevis (Kalotermitidae) during 9 months. We show that they differ in these oviposition dynamics, as C. gestroi queens displayed an uninterrupted oviposition whereas C. brevis laid a cohort of eggs and ceased oviposition during a 3-month period (lag phase). C. gestroi 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 C. brevis 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 lag phase), thus our results on the oviposition of C. gestroi and C. brevis correspond to different reproductive strategies post-foundation adopted by these pest species.

论蚁群后的繁殖策略:不同生态习性的白蚁主要害虫的产卵动态存在差异。
白蚁群落的建立在初始阶段之前,当第一次产卵周期发生时,随后是几个月的不繁殖活动。在此期间,这对皇室夫妇应该停止产卵,投入精力照顾第一批孩子。当合适数量的异体亲本分化时,产卵恢复。本研究对两种主要害虫黄蚁(rhinotermitii)和短隐蚁(Cryptotermes brevis)的实验室群落进行了为期9个月的产卵动态、胚胎发育和蜂王体变化的跟踪研究。我们发现它们在这些产卵动力学上是不同的,因为孕蜂蜂王表现出不间断的产卵,而短蜂蜂王在3个月(滞后期)期间产下一群卵并停止产卵。黄斑蝶的产卵动态是显著的,这表明后代的出现不是一个限制因素,因此女王和国王能够同时投入精力在繁殖和亲代照顾上。这些发现与来自温带地区的鼻白蚁的报告形成对比,我们讨论了这种情况的可能原因,包括内源性节律,避免第一代高死亡率以及适应新热带地区的天气条件。短蚁的产卵动态类似于几种白蚁,在这些白蚁中,王室夫妇停止繁殖以照顾第一批后代。饲养条件对卵期动态(产卵周期后有一个迟滞期)没有影响,因此我们的研究结果对应了这两种害虫在产卵后采取的不同繁殖策略。
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来源期刊
CiteScore
4.00
自引率
0.00%
发文量
160
审稿时长
6-12 weeks
期刊介绍: Established in 1910, the internationally recognised Bulletin of Entomological Research aims to further global knowledge of entomology through the generalisation of research findings rather than providing more entomological exceptions. The Bulletin publishes high quality and original research papers, ''critiques'' and review articles concerning insects or other arthropods of economic importance in agriculture, forestry, stored products, biological control, medicine, animal health and natural resource management. The scope of papers addresses the biology, ecology, behaviour, physiology and systematics of individuals and populations, with a particular emphasis upon the major current and emerging pests of agriculture, horticulture and forestry, and vectors of human and animal diseases. This includes the interactions between species (plants, hosts for parasites, natural enemies and whole communities), novel methodological developments, including molecular biology, in an applied context. The Bulletin does not publish the results of pesticide testing or traditional taxonomic revisions.
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