March flies and European Cenozoic palaeoclimates (Diptera: Bibionidae)
March flies and European Cenozoic palaeoclimates (Diptera: Bibionidae)
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三月蝇和欧洲新生代古气候（双翅目：Bibionidae）
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
A. Waller
中科院分区：
文献类型：
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作者：
François;A. Nel;G. Fleck;A. Waller
摘要利用不同生物属的比例来估计西欧始新世晚期至中新世晚期的温度变化。车前草属是新生代温暖古气候的良好指示植物。我们提出了一种新的方法来估计古气候信息的价值，这些信息可以通过使用灭绝分类群的实际推断来获得。其他类群（即Mastotermitidae），可能出现先验更好的古气候指标的结果是不太敏感比bibionids温度变化。种内和属内形态多样性的探索属Bibio，Penthetria和Plantum，显示出困难的化石bibionid物种的特点。
Abstract The proportions of the different bibionid genera are used to estimate the temperature changes between the Late Eocene and the Late Miocene in Western Europe. The genus Plecia is a good indicator of the warm Cenozoic palaeoclimates. We propose a new approach for the estimation of the value of the palaeoclimatic information that could be obtained by actualistic inferences using extinct taxa. Other taxa (i.e. Mastotermitidae) that could appear a priori better palaeoclimatic indicators result to be less sensitive than bibionids to temperature changes. Intraspecific and intrageneric morphological diversity is explored for the genera Bibio, Penthetria and Plecia, showing the difficulties to characterize the fossil bibionid species.