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首页> 外文期刊>Bulletin of the European Association of Fish Pathologists >Biological Strategies of Dermestes maculatus DeGeer (Coleoptera: Dermestidae) at Larval Stages in Different Temperatures
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Biological Strategies of Dermestes maculatus DeGeer (Coleoptera: Dermestidae) at Larval Stages in Different Temperatures

机译：Dermestes Maculatus Degeer（COLEOPTERA：Dermestidae）在不同温度下的幼虫阶段的生物学策略

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摘要

The intraspecific variation in larval instars is a widely distributed phenomenon amongst holometabolous insects. Several factors can affect the number of instars, such as temperature, humidity, and density. Only a few references could be found in the literature because the invariability in the number of larval instars is considered normal, and the issue has raised little to no interest. Despite this, no study to date has intended to assess or focus on the larval development. Here, we analyzed the effect of different rearing temperature on the larval stage of Dermestes maculatus DeGeer (Coleoptera: Dermestidae). The results indicated that at all temperatures, L5 represented a decisive point for individuals as well as the other later larval instars, because the next step to follow was to pupate or molt to the next larval instar. Furthermore, there were mainly two populations, L5 and L6, although in different proportions according to temperature. We also found that at a greater number of instars, the larval development at all temperatures lasted longer. Moreover, the exponential model was the best adjustment in the developmental time of all populations as well as for the accumulated developmental time of L1-L4. Thus, we conclude that random factors such as genetics could probably cause interspecific variability in D. maculatus larval development.
机译：幼虫Instars的内部内部变化是浮动昆虫之间的广泛分布现象。有几个因素会影响温度，湿度和密度等龄的数量。在文献中只能找到一些参考资料，因为幼虫续航符数量的不变性被认为是正常的，而且这个问题略微提出了没有兴趣。尽管如此，迄今尚未研究旨在评估或关注幼虫发展。在这里，我们分析了不同饲养温度对皮米氏菌（Coleoptera：Dermestidae）幼虫阶段的影响。结果表明，在所有温度下，L5表示个体的决定性以及其他后来的幼虫龄，因为下一步是将蛹或蜕变蛹到下一个幼虫龄。此外，主要有两种群体，L5和L6，尽管根据温度不同的比例。我们还发现，在更多的龄量中，所有温度的幼虫发育持续更长时间。此外，指数模型是所有群体的发育时间以及L1-L4的累积发育时间的最佳调整。因此，我们得出结论，遗传学等随机因素可能可能导致D.Maculatus幼虫发育中的特异性变异性。

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