Neoichnological study of two species of burrowing darkling beetles (Coleoptera: Tenebrionidae) from larval to adult stages

IF 0.8 4区 地球科学 Q4 PALEONTOLOGY
Hayden A. Thacker, Daniel I. Hembree
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引用次数: 2

Abstract

ABSTRACT Beetles (Coleoptera) are a critical component of terrestrial ecosystems filling numerous ecological roles. Soil-dwelling beetles play an important role in pedogenesis through the production of biogenic structures throughout their life cycle. Given their life habits, beetle trace fossils should be abundant in the fossil record and a number of ichnotaxa have been attributed to beetles, yet there is still much to learn about their trace-making techniques and the variety of morphologies of traces they can produce throughout their life cycle. The Tenebrionidae (darkling beetles) is a common, globally distributed group that includes many soil-dwelling species from a variety of environments. The purpose of this project was to gain a better understanding of biogenic structures produced during each life stage of two species of burrowing darkling beetles, Zophobas morio F. and Tenebrio molitor L. Single to multiple specimens of each species were placed in variably sized enclosures filled with massive and layered sediment with and without layers of food. Biogenic structures produced by the two species were similar, but distinct between each life stage and associated with different behaviors. Observed biogenic structures are comparable to Palaeophycus, Planolites, Fictovichnus, Rebuffoichnus, Pallichnus, Taenidium, Skolithos, and Conichnus depending on the life stage. Neoichnological studies such as this can aid in the understanding of biogenic structures in the fossil record. Being able to effectively link continental traces to trace makers will ultimately improve our understanding of the composition of ancient terrestrial ecosystems.
两种穴居暗甲虫(鞘翅目:拟甲科)幼虫至成虫期的新技术研究
甲虫(鞘翅目)是陆地生态系统的重要组成部分,具有多种生态功能。土栖甲虫在其整个生命周期中通过产生生物成因结构在成土过程中起着重要的作用。考虑到甲虫的生活习性,在化石记录中甲虫的痕迹化石应该是丰富的,许多鱼类群被归为甲虫,但关于它们的痕迹制造技术和它们在整个生命周期中可以产生的痕迹形态的多样性,还有很多东西需要学习。拟甲科(暗甲虫)是一个常见的,全球分布的群体,包括许多来自各种环境的土栖物种。该项目的目的是为了更好地了解两种穴居暗甲虫(zoophobas morio F.和Tenebrio molitor L.)在每个生命阶段产生的生物成因结构。每个物种的单个或多个标本被放置在不同大小的笼子中,笼子里充满了大块和分层的沉积物,有或没有食物层。两个物种产生的生物成因结构相似,但在每个生命阶段之间存在差异,并与不同的行为相关。所观察到的生物结构根据其生命阶段可与Palaeophycus、Planolites、Fictovichnus、Rebuffoichnus、Pallichnus、Taenidium、Skolithos和Conichnus相比较。诸如此类的新技术研究有助于理解化石记录中的生物成因结构。能够有效地将大陆痕迹与痕迹制造者联系起来,最终将提高我们对古代陆地生态系统组成的理解。
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来源期刊
CiteScore
2.50
自引率
12.50%
发文量
0
审稿时长
>12 weeks
期刊介绍: The foremost aim of Ichnos is to promote excellence in ichnologic research. Primary emphases center upon the ethologic and ecologic significance of tracemaking organisms; organism-substrate interrelationships; and the role of biogenic processes in environmental reconstruction, sediment dynamics, sequence or event stratigraphy, biogeochemistry, and sedimentary diagenesis. Each contribution rests upon a firm taxonomic foundation, although papers dealing solely with systematics and nomenclature may have less priority than those dealing with conceptual and interpretive aspects of ichnology. Contributions from biologists and geologists are equally welcome. The format for Ichnos is designed to accommodate several types of manuscripts, including Research Articles (comprehensive articles dealing with original, fundamental research in ichnology), and Short Communications (short, succinct papers treating certain aspects of the history of ichnology, book reviews, news and notes, or invited comments dealing with current or contentious issues). The large page size and two-column format lend flexibility to the design of tables and illustrations. Thorough but timely reviews and rapid publication of manuscripts are integral parts of the process.
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