PHYSIOLOGY OF PRE-OVIPOSITION BEHAVIOR

苔藓的行为随着生理状态的变化而变化 的昆虫。 虽然主机寻求行为一般是没有 一旦摄入血液， 卵子发生已经开始，女性确实变得更吸引人 产卵地点刺激在这个时候，并显示我们有什么 称为“产卵前”的行为，以寻找一个地方，奠定他们的 鸡蛋 我们的实验室最近证明， 从寻找寄主到产卵前的行为转变， 在未妊娠的蚊子中通过使用来自 怀孕的捐赠者 根据我们的初步实验，我们 假设为了显示产卵前，蚊子必须 首先感知产卵地点的刺激，必须有成熟的卵巢， 并且必须交配。 建议审查 这三个因素与这些因素之间的联系。 蚊子的中枢神经系统 的时间过程 产卵前体液因子的存在及其稳定性 将首先确定。 利用显微外科技术， 交配是如何影响这种行为的， 在确定产卵后终止产卵。 因为在野外饲养的蚊子 滋养，产卵前行为的可能性，可以是 将评估由次优营养状态改变的情况。

Mosquito behavior changes with the changing physiological state of the insect. Although host-seeking behavior is generally no longer expressed once a blood meal has been ingested and oogenesis has commenced, females do become more attracted to oviposition site stimuli at this time, and display what we have termed "pre-oviposition" behavior in search of a place to lay their eggs. Our laboratory has recently demonstrated that the behavioral switch from host-seeking to pre-oviposition can be induced in non-gravid mosquitoes by transfusing hemolymph from gravid donors. Based on our preliminary experiments, we postulate that in order to display pre-oviposition, a mosquito must first perceive oviposition sited stimuli, must have mature ovaries, and must be mated. An examination is proposed of the mechanisms by which these three factors communicate with the central nervous system of the mosquito. The time course for the presence of the humoral pre-oviposition factor and its stability will first be determined. Using techniques of microsurgery, the way in which mating influences this behavior and how pre- oviposition is terminated after oviposition will be determined. Because mosquitoes reared in the field are often marginally nourished, the possibility that pre-oviposition behavior can be modified by suboptimal nutritional state will be evaluated.