Bubis JA, Degreen HP, Unsell JL, Tompkins L
Department of Biology, Temple University
Anim Behav. 1998 Jun;55(6):1637-45. doi: 10.1006/anbe.1997.0723.
Observations of newly mated Drosophila melanogaster females suggest that females control the times at which components of the ejaculate cause behavioural and physiological changes characteristic of fertilized females. Females that were assayed immediately after they mated elicited as much courtship as they did when they were virgins, but were unreceptive to copulation. Within a few minutes of when they disengaged from copulation, most females performed ovipositor extrusion, which has been classified as a rejection behaviour, in response to courting males or males that had previously performed courtship. Most females that were assayed immediately after mating had already ovulated. The females, however, do not begin to lay eggs until 4-6 h after mating, at which time they elicit very little courtship (Scott & Richmond 1985, Anim. Behav., 33, 817-824). Our observations suggest that neither ovipositor extrusion nor male-synthesized pheromones that are transferred to females' cuticles during copulation inhibit males' courtship of newly fertilized females. Thus, males cannot determine that newly fertilized females are unreceptive to copulation. These observations also indicate that the failure of newly fertilized females to mate with males is not a consequence of the females' inability to elicit vigorous courtship. Copyright 1998 The Association for the Study of Animal Behaviour. Copyright 1998 The Association for the Study of Animal Behaviour.
对刚交配的黑腹果蝇雌蝇的观察表明，雌蝇能控制射精成分引发受精雌蝇典型行为和生理变化的时间。交配后立即接受检测的雌蝇引发的求偶行为与未交配时一样多，但它们不接受交配。在与雄蝇交配结束后的几分钟内，大多数雌蝇会针对求偶的雄蝇或之前有过求偶行为的雄蝇做出产卵器外伸动作，这一动作被归类为一种拒绝行为。大多数交配后立即接受检测的雌蝇已经排卵。然而，雌蝇直到交配后4至6小时才开始产卵，此时它们引发的求偶行为很少（斯科特和里士满，1985年，《动物行为》，第33卷，第817 - 824页）。我们的观察表明，无论是产卵器外伸，还是交配过程中转移到雌蝇体表的雄蝇合成的信息素，都不会抑制雄蝇对新受精雌蝇的求偶行为。因此，雄蝇无法判断新受精的雌蝇不接受交配。这些观察还表明，新受精的雌蝇不与雄蝇再次交配并非因为雌蝇无法引发强烈的求偶行为。版权所有1998年动物行为研究协会。版权所有1998年动物行为研究协会。
