Do the amount of sex pheromone and frequency of calling behavior in females affect the mate-searching behavior of males in Dasylepida ishigakiensis (Coleoptera: Scarabaeidae)?
Do the amount of sex pheromone and frequency of calling behavior in females affect the mate-searching behavior of males in Dasylepida ishigakiensis (Coleoptera: Scarabaeidae)?
复制标题
雌性性信息素的量和叫声行为的频率是否会影响石垣螟（鞘翅目：金龟子科）雄性的寻偶行为？
DOI：
10.1007/s13355-017-0487-y
复制
发表时间：
2017
影响因子：
1.3
通讯作者：
N.
中科院分区：
文献类型：
--
作者：
Yasui;H.;Fujiwara-Tsujii;N.;Tanaka;S.;Wakamura;S.; Arakaki;N.
白色食叶甲Dasylepida ishigakiensisNiijima et Kinoshita（鞘翅目：金龟子科）是日本冲绳宫古诸岛的重要甘蔗害虫。由于这种甲虫一生中大部分时间都呆在地下，因此使用合成性信息素破坏交配被认为是一种有希望的控制措施。雌性释放的信息素（2-丁醇）的量随着它们每天重复呼叫而急剧减少。在这项研究中，我们确定了男性的反应，不同浓度的（R）-2-丁醇，在实验室和现场。雄性表现出典型的交配前行为，它们被吸引到（R）-2-丁醇，即使在浓度的1/100的量通常由女性在第一阶段的呼吁。我们研究了女性吸引力的男性是否减少与呼叫的频率，通过计算的数量吸引到女性，在零至五个时期之前呼吁男性。我们的研究结果表明，高水平的女性吸引力，即使在三个时期的呼吁保持。基于这些研究结果，我们建议，释放合成性信息素的交配季节开始前不久，并进入交配季节后期可能是最佳的破坏这种甲虫的交配。
The white grub beetleDasylepida ishigakiensisNiijima et Kinoshita (Coleoptera: Scarabaeidae) is a serious sugarcane pest on the Miyako Islands, Okinawa, Japan. Because this beetle stays underground for most of its lifetime, mating disruption using a synthetic sex pheromone has been suggested as a promising control measure. The amount of pheromone (2-butanol) released by the females is known to decrease drastically as they repeat calling each day. In this study, we determined the response of males to different concentrations of (R)-2-butanol, both in the laboratory and in the field. Males showed typical pre-mating behaviors and they were attracted to (R)-2-butanol even at a concentration 1/100 of the amount typically emitted by a female during the 1st period of calling. We examined whether female attractiveness to males was reduced with the frequency of calling, by counting the number of males attracted to females that had called during zero to five periods beforehand. Our results indicated that a high level of female attractiveness was maintained even after three periods of calling. Based on these findings, we propose that releasing synthetic sex pheromone shortly before the start of the mating season and into the late mating season may be optimal for disrupting the mating of this beetle.