群居腐尸甲虫Thanatophilus sinuatus在羽化时的大小校正昆虫年龄(食蚜科:食蚜科)。

IF 1.6 3区 农林科学 Q2 ENTOMOLOGY
Natalia Lis, Wojciech Szyk, Anna Mądra-Bielewicz, Szymon Matuszewski
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引用次数: 0

摘要

最近的发现表明,雄性和雌性以及不同大小的甲虫羽化时的生理年龄不同。因此,有人假设,羽化时甲虫的大小和性别可以用来校准它们的年龄,这可能会提高法医昆虫学中年龄(和死后间隔)估计的准确性。在这项研究中,我们推导了中欧腐肉甲虫Thanatophilus sinuatus(Fabricius,1775)(金龟子科:Silphinae)种群羽化的热总和模型,并测试了性别和大小对羽化时甲虫年龄校准的有用性。尽管在以前的发育研究中,甲虫是单独饲养的,但我们将它们聚集在幼虫群中饲养,因为在自然条件下,弯曲T.sinuatus甲虫是群居的。在羽化时,观察到雄性或雌性弯曲T.sinuatus的大小和年龄之间存在微弱的负相关性(r2在5%和13%之间),这表明通过甲虫大小和性别校准年龄可能只会对该物种的年龄估计准确性带来最小的好处。然而,对于体型极大或极小的甲虫来说,这可能仍然是值得的。此外,本研究中记录的总发育时间比之前的弯曲线虫研究要短得多,在14°C时大约缩短了15 天,在26°C下约2 天。这些差异强调了群体性对腐肉甲虫发育的重要性,同时也强调了法医昆虫学中发展研究的生态相关协议的必要性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Calibrating insect age at eclosion by size in a gregarious carrion beetle Thanatophilus sinuatus (Staphylinidae: Silphinae)

Calibrating insect age at eclosion by size in a gregarious carrion beetle Thanatophilus sinuatus (Staphylinidae: Silphinae)

Recent discoveries have shown that the physiological age at eclosion of forensically useful beetles differs between males and females and between beetles of various sizes. Accordingly, it was postulated that the size and sex of the beetles at eclosion may be used to calibrate their age, which may improve the accuracy of age (and post-mortem interval) estimates in forensic entomology. In this study, we derived thermal summation models for the eclosion for the Central European population of carrion beetles Thanatophilus sinuatus (Fabricius, 1775), (Staphylinidae: Silphinae), and tested the usefulness of sex and size for the calibration of beetle age at eclosion. Although in previous developmental studies, the beetles were reared individually, we reared them in larval aggregations, since in natural conditions T. sinuatus beetles are gregarious. Weak (r2 between 5% and 13%) negative correlations were observed between the size and age of T. sinuatus males or females at eclosion, demonstrating that calibration of age by beetle size and sex may bring only minimal benefits regarding the accuracy of age estimation in this species. However, it may still be worthwhile in the case of extremely large or small beetles. Moreover, the total development times recorded in this study were much shorter than in the previous T. sinuatus study, at 14°C by about 15 days and at 26°C by about 2 days. These differences emphasise the importance of gregariousness for the development of carrion beetles, and at the same time highlight the need for the ecologically-relevant protocols of development studies in forensic entomology.

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来源期刊
Medical and Veterinary Entomology
Medical and Veterinary Entomology 农林科学-昆虫学
CiteScore
3.70
自引率
5.30%
发文量
65
审稿时长
12-24 weeks
期刊介绍: Medical and Veterinary Entomology is the leading periodical in its field. The Journal covers the biology and control of insects, ticks, mites and other arthropods of medical and veterinary importance. The main strengths of the Journal lie in the fields of: -epidemiology and transmission of vector-borne pathogens changes in vector distribution that have impact on the pathogen transmission- arthropod behaviour and ecology- novel, field evaluated, approaches to biological and chemical control methods- host arthropod interactions. Please note that we do not consider submissions in forensic entomology.
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