Evidence of queen-rearing suppression by mature queens in the little fire ant, Wasmannia auropunctata.

IF 1.4 3区 农林科学 Q2 ENTOMOLOGY
Insectes Sociaux Pub Date : 2023-01-01 Epub Date: 2023-05-10 DOI:10.1007/s00040-023-00917-4
R M Collignon, M S Siderhurst, D H Cha
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引用次数: 0

Abstract

The little fire ant (LFA), Wasmannia auropunctata, is a serious invasive pest first reported on Hawaii Island in 1999, and has since spread and established itself across the island. LFA is considered one of the worst 100 invasive species and has significant ecological, agricultural, and public health impacts in invaded areas, which include much of the tropical New World. Although localized eradication efforts have proven successful, they are intensive and difficult to implement. Furthermore, LFA's high invasive-ability resists these control efforts in areas where the species is established and can re-infest treated areas. This research set out to determine whether LFA queens have a suppressant effect on new queen production in nests, as a first step in identifying a potential queen pheromone for LFA. A queen pheromone could offer a means to shutdown LFA reproductive capability, potentially by suppressing the production of new queens or inducing the execution of queens or queen-destined larvae. When queenless experimental nests and polygyne experimental nests were compared, six out of eight queenless nests successfully reared both new alate queens (2.25 queens/nest) and drones (3.63 drones/nest) to adulthood, whereas only three of eight polygyne nests reared sexual larvae that failed to develop to adulthood or even the pupal stage. These results suggest that dealate mature LFA queens suppress the production of new alate queens in LFA nests, and is the first evidence that LFA may utilize a queen pheromone.

Abstract Image

小火蚁Wasmania auropunctata中成熟蚁后抑制蚁后饲养的证据。
小火蚁(LFA),Wasmania auropunctata,是一种严重的入侵性害虫,1999年首次在夏威夷岛报道,此后在整个岛上传播并站稳脚跟。LFA被认为是最严重的100种入侵物种之一,对入侵地区(包括热带新大陆的大部分地区)的生态、农业和公共卫生产生了重大影响。尽管局部根除工作已证明是成功的,但这些工作是密集的,难以实施。此外,LFA的高入侵能力在该物种建立的地区抵抗这些控制努力,并可能再次侵扰治疗区域。这项研究旨在确定LFA蚁后是否对巢穴中新蚁后的产生具有抑制作用,这是确定LFA潜在蚁后信息素的第一步。蜂王信息素可以提供一种关闭LFA繁殖能力的方法,可能通过抑制新蜂王的产生或诱导处决蜂王或蜂王幼虫。当比较无女王实验巢和多炔实验巢时,八个无女王巢中有六个成功地饲养了新的有翼女王(2.25女王/巢)和雄蜂(3.63雄蜂/巢)至成年,而八个多炔巢中只有三个饲养了未能发育至成年甚至蛹期的性幼虫。这些结果表明,脱酸成熟的LFA蚁后抑制了LFA巢穴中新的有翅蚁后的产生,这是LFA可能利用蚁后信息素的第一个证据。
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来源期刊
Insectes Sociaux
Insectes Sociaux 生物-昆虫学
CiteScore
2.70
自引率
7.70%
发文量
43
审稿时长
6-12 weeks
期刊介绍: Insectes Sociaux (IS) is the journal of the International Union for the Study of Social Insects (IUSSI). It covers the various aspects of the biology and evolution of social insects and other presocial arthropods; these include ecology, ethology, morphology, population genetics, reproduction, communication, sociobiology, caste differentiation and social parasitism. The journal publishes original research papers and reviews, as well as short communications. An international editorial board of eminent specialists attests to the high quality of Insectes Sociaux, a forum for all scientists and readers interested in the study of social insects.
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