辽西葫芦岛中侏罗世海房沟地层中植物与昆虫的相互作用及其地质学意义

IF 16.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-07-18 DOI:10.1007/s12549-024-00617-2
Yuling Na, Tao Li, Yunfeng Li, Chunlin Sun, Xiao Shi, Xuemei Li
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引用次数: 0

摘要

在辽宁葫芦岛连山区白马石村中侏罗世海房沟地层中发现了228片保存完好的叶片化石。为了深入了解辽西地区中侏罗世时期植物与昆虫的相互作用,本文在以往分类学研究的基础上,对海房沟地层叶片化石上的昆虫伤害证据进行了鉴定和定量分析。本文确定了三种功能取食类群(FFGs)下的七种昆虫损伤类型(DTs)。边缘取食是最普遍的功能取食类群,其次是孔取食和表面取食,表明侏罗纪中期该地区以具有咀嚼口器的直翅目和膜翅目昆虫为主,半翅目和鞘翅目昆虫也发挥了重要作用。昆虫的主要目标植物类群是银杏叶植物,其次是翼手目植物、苏铁叶植物和泽兰叶植物,其中苏铁叶植物被破坏的叶片周长和面积的平均百分比最高。这可能与侏罗纪中期针叶树的物理抗虫机制以及翼手目和银杏目植物的化学防御能力有关。海房沟地层的植物和昆虫种类繁多,观察到的化石叶片中约有17.54%有昆虫伤害的痕迹,这可能表明该地区昆虫活动活跃,中侏罗世植物与昆虫的关系密切。考虑到植物组成和气候指示植物群,可以推断研究地区在中侏罗世时期气候温暖湿润,并可能伴有间歇性干旱。
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Plant-insect interaction from the Middle Jurassic Haifanggou Formaton in Huludao, western Liaoning and its geological implications

A total of 228 well-preserved fossil leaves have been discovered from the Middle Jurassic Haifanggou Formation in Baimashi Village, Lianshan District, Huludao, Liaoning. To gain insights into the plant-insect interaction during the Middle Jurassic in western Liaoning, this paper aims to identify and quantitatively analyse evidence of insect damages on fossil leaves from the Haifanggou Formation based on previous taxonomic research. Seven insect damage types (DTs) assigned to three functional feeding groups (FFGs) are identified. Margin feeding is the most prevalent FFG, followed by hole feeding and surface feeding, suggesting that Orthoptera and Hymenoptera with chewing mouthparts were dominant during the Middle Jurassic in this area, with Hemiptera and Coleoptera also playing a significant role. The primary plant groups targeted by insects are Ginkgophytes, followed by Pteridophytes, Cycadophytes and Czekanowskiales, with Cycadophytes exhibiting the highest average percentage of damaged leaf perimeter and area. This could be attributed to the physical insect resistance mechanism of conifers, as well as the chemical defense capabilities of Pteridophytes and Ginkgophytes during the Middle Jurassic. Plants and insects from the Haifanggou Formation are highly diverse, and approximately 17.54% of the observed fossil leaves show traces of insect damage, probably indicating the presence of active insects in the area and a close relationship between plants and insects during the Middle Jurassic. Considering the floristic composition and the climate-indicative plant groups, it can be inferred that the climate in the study area during the Middle Jurassic was warm and humid, potentially accompanied by intermittent droughts.

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来源期刊
Accounts of Chemical Research
Accounts of Chemical Research 化学-化学综合
CiteScore
31.40
自引率
1.10%
发文量
312
审稿时长
2 months
期刊介绍: Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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