Vulnerability and behavioral response to ultraviolet radiation in the components of a foliar mite prey–predator system
Vulnerability and behavioral response to ultraviolet radiation in the components of a foliar mite prey–predator system
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DOI：
10.1007/s00114-012-0984-3
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发表时间：
2012-10
影响因子：
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通讯作者：
Fuyuki Tachi;M. Osakabe
中科院分区：
文献类型：
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作者：
Fuyuki Tachi;M. Osakabe
环境紫外线B(UVB)辐射影响植物栖息的节肢动物，包括草食性和捕食性螨类。然而，UVB对捕食者-捕食者系统的影响，如草食性蜘蛛和捕食性植物叶螨之间的影响，人们知之甚少。进行了一项比较研究，以确定这些螨类对紫外线(UV)辐射的脆弱性和行为反应。首先，我们分析了藻类叶螨(Neoseiulus calforNicus、Neoseiulus huersleyi和Phytoseiulus persimilis)和蜘蛛叶螨(Tetranychus Urticae)的卵对紫外线灯照射的剂量-效应(累积辐射-死亡率)曲线。这表明，植粉螨比蜘蛛更脆弱，尽管P。寄生比另外两种植绒螨耐受程度稍高。其次，比较了成年女性N的回避行为。CalforNicus和两种蜘蛛(T.urticae，下部叶表面使用者；Panonchus Citri，上部叶表面使用者)对太阳紫外线和可见光的响应。柑橘只表现出极少的回避行为，麻黄小蜂主动回避紫外线和ASN。但对可见光的反应较慢，对天冬氨酸转运蛋白的反应也较慢。西特里。这种脆弱性和回避行为的差异解释了物种对太阳UVB辐射适应的差异。这可能是决定这些螨类对寄主植物叶片的栖息地利用的主要因素，从而影响捕食者的可及性，也影响行会内的竞争。
Ambient ultraviolet-B (UVB) radiation impacts plant-dwelling arthropods including herbivorous and predatory mites. However, the effects of UVB on prey–predator systems, such as that between the herbivorous spider mite and predatory phytoseiid mite, are poorly understood. A comparative study was conducted to determine the vulnerability and behavioral responses of these mites to ultraviolet (UV) radiation. First, we analyzed dose–response (cumulative irradiance-mortality) curves for the eggs of phytoseiid mites (Neoseiulus californicus,Neoseiulus womersleyi, andPhytoseiulus persimilis) and the spider mite (Tetranychus urticae) to UVB radiation from a UV lamp. This indicated that the phytoseiid mites were more vulnerable than the spider mite, althoughP. persimiliswas slightly more tolerant than the other two phytoseiid mites. Second, we compared the avoidance behavior of adult femaleN. californicusand two spider mite species (T. urticae, a lower leaf surface user;Panonychus citri, an upper leaf surface user) in response to solar UV and visible light.N. californicusactively avoided both types of radiation, whereasP. citrishowed only minimal avoidance behavior.T. urticaeactively avoided UV as well asN. californicusbut exhibited a slow response to visible light as well asP. citri. Such variation in vulnerability and avoidance behavior accounts for differences in the species adaptations to solar UVB radiation. This may be the primary factor determining habitat use among these mites on host plant leaves, subsequently affecting accessibility by predators and also intraguild competition.