Arthropod colonization of land--linking molecules and fossils in oribatid mites (Acari, Oribatida).
Arthropod colonization of land--linking molecules and fossils in oribatid mites (Acari, Oribatida).
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节肢动物在陆地上的殖民——连接甲螨（Acari，Oribatida）中的分子和化石。
DOI：
10.1016/j.ympev.2010.04.015
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发表时间：
2010
影响因子：
4.1
通讯作者：
M. Maraun
中科院分区：
文献类型：
--
作者：
I. Schaefer;R. A. Norton;S. Scheu;M. Maraun
记录早期陆地殖民的陆地化石在寒武纪大爆发后>100万年内很稀少。这就提出了一个问题，陆地上的生命是不存在的，还是只是没有灭绝。利用分子测年技术，分析了中泥盆世以来有化石记录的陆生螯肢类微型节肢动物（阿卡里，甲螨目）的起源。我们的研究结果表明甲螨起源于前寒武纪（571±37mya），基底群的辐射与寒武纪爆发与大陆生态系统最早的化石记录之间的差距相吻合。此外，他们认为，土地的殖民化开始通过间隙，150年前比最古老的化石陆地生态系统。总体而言，结果表明，杂食性和反食性节肢动物形成了早期陆地食物网的主要组成部分，从而促进了陆地栖息地的入侵，后来殖民者的营养水平较高。
Terrestrial fossils that document the early colonization of land are scarce for >100 my after the Cambrian explosion. This raises the question whether life on land did not exist or just did not fossilize. With a molecular dating technique, we analyzed the origin of terrestrial chelicerate microarthropods (Acari, Oribatida) which have a fossil record since the Middle Devonian that is exceptional among soil animals. Our results suggest that oribatid mites originated in the Precambrian (571±37mya) and that the radiation of basal groups coincides with the gap in the terrestrial fossil record between the Cambrian explosion and the earliest fossilized records of continental ecosystems. Further, they suggest that the colonization of land started via the interstitial, ∼150 my earlier than the oldest fossils of terrestrial ecosystems. Overall, the results imply that omnivorous and detritivorous arthropods formed a major component in early terrestrial food webs, thereby facilitating the invasion of terrestrial habitats by later colonizers of higher trophic levels.
影响因子：
10.7
作者：
Thorne, JL;Kishino, H;Painter, IS
通讯作者：
Painter, IS