Phototactic behavior of the ambrosia beetle Platypus quercivorus (Murayama) (Coleoptera: Platypodidae) before and after flight
Phototactic behavior of the ambrosia beetle Platypus quercivorus (Murayama) (Coleoptera: Platypodidae) before and after flight
复制标题
豚草甲虫 Platypus quercivorus (Murayama)（鞘翅目：Platypodidae）飞行前后的趋光行为
DOI：
10.1007/s10905-017-9615-3
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发表时间：
2017
影响因子：
1
通讯作者：
Michimasa Yamasaki
中科院分区：
文献类型：
--
作者：
Long Pham Duy;Yasuto Ito;Ryuichi Okada;Hidetoshi Ikeno;Yuji Isagi;Michimasa Yamasaki
食草小蠹（Ambrosia beetPlatypus quercivorus）（鞘翅目：扁足虫科）是引起日本栎枯萎病的病原真菌，Raffaelea quercivora（Ophiostomatales：Ophiostomataceae）的媒介。以往的研究表明，金龟子表现出积极的趋光行为，然而，这种行为的适应意义仍然不清楚。我们假设，积极的趋光性是必要的，让甲虫从树上出现后立即飞向天空，这种出租车的变化后，一段时间的飞行。本研究的目的是阐明P.通过使用从2014年受到攻击的皱叶栎（壳斗目：壳斗科）树的树干中出现的个体甲虫，在飞行之前和之后对quercivorus进行了研究。60只甲虫在飞行前和飞行后，在飞行磨坊中对光线的反应进行了10次测试。建立了一个广义线性混合模型来预测P.在飞行之前和之后。一个最佳拟合模型表明，积极的趋光性的概率是飞行后低于前。结果表明，P.飞行后食栎量减少。
The ambrosia beetlePlatypus quercivorus(Coleoptera: Platypodidae) is a vector of the pathogenic fungi,Raffaelea quercivora(Ophiostomatales: Ophiostomataceae), which causes Japanese oak wilt disease. Previous studies have shown that the beetle displays positive phototactic behavior; however, the adaptive significance of this behavior remains unclear. We postulated that positive phototaxis is necessary to allow the beetle to fly skyward immediately after emergence from a tree, and that this taxis changes following a certain period of flight. The present study aimed to clarify the changes in phototactic behavior ofP. quercivorusbefore and after flight by using individual beetles emerging from the trunk of aQuercus crispula(Fagales: Fagaceae) tree that was attacked in 2014. The response of 60 beetles to light was tested ten times each, before and after flight in a flight mill. A generalized linear mixed model was constructed to predict the probability of positive phototaxis ofP. quercivorusbefore and after flight. A best-fit model showed that the probability of positive phototaxis was lower after flight than before. The results suggest that positive phototaxis ofP. quercivorusis decreased after flight.
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DOI：
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