Behavioural Consistency in Female Resistance to Male Harassment in a Water Strider Species
Behavioural Consistency in Female Resistance to Male Harassment in a Water Strider Species
复制标题
水黾物种中雌性抵抗雄性骚扰的行为一致性
作者：
Maxime Pineaux;J. Turgeon
交配率的性冲突往往意味着男性坚持频繁骚扰女性，以获得交配，而女性抵制交配尝试。在水虻中，雌性可以通过激烈的交配前斗争来驱逐雄性来抵抗，但很少有人研究过其他的抵抗手段。与男性相反，女性的抵抗没有被作为一种可重复的行为进行研究。我们使用Gerrisbuenoi来研究两个潜在的女性抵抗性状，即抵抗斗争的能力和隐藏水的倾向。具体来说，我们询问这些行为是否可重复，以及它们是否根据性冲突强度和过去的交配经验而变化。此外，我们还研究了这些行为与健康相关的特征之间可能存在的联系，即忍受骚扰和交配活动。的能力，可重复性差，减少性冲突的强度和忍受骚扰。这似乎主要是由社会环境和最近与性冲突有关的事件决定的。在性冲突的强度中，隐藏水的倾向是可重复的，可以被认为是一种可重复的行为。经常躲在水面上可以减少雌性所遭受的骚扰，并可能增强雌性的健康。在自然界中，隐藏比交配前的挣扎更容易和更频繁地被观察到。直接关联隐藏的水与女性健身将确认，这种一致的表型有助于性拮抗女性的阻力。
Sexual conflict over mating rate often implies that males persist at frequently harassing females to gain matings while females resist mating attempts. In water striders, females can resist by engaging in vigorous pre-copulatory struggles to dislodge males, but alternative means of resistance have seldom been investigated. Contrary to males, female resistance has not been investigated as a repeatable behaviour. We used Gerris buenoi to investigate the capacity to abbreviate struggles and the tendency to hide off the water as two potential female resistance traits. Specifically, we asked whether these behaviours are repeatable and whether they vary according to sexual conflict intensity and past mating experience. Also, we studied the possible connections between these behaviours and traits linked to fitness, namely endured harassment and mating activity. The capacity to abbreviate struggles was poorly repeatable and decreased with sexual conflict intensity and endured harassment. It seems to be mainly determined by the social environment and by recent events related to sexual conflict. The tendency to hide off the water was significantly repeatable across sexual conflict intensities and can be considered as a repeatable behaviour. Hiding frequently off the water allowed females to decrease the harassment endured by females and may enhance female fitness. In nature, hiding is more readily and more frequently observed than pre-copulatory struggles. Directly associating hiding off water with female fitness would confirm that this consistent phenotype contributes to sexually antagonistic female resistance.