Sex-specific differences in the chasing behaviour of houseflies (Musca)
Sex-specific differences in the chasing behaviour of houseflies (Musca)
复制标题
家蝇（Musca）追逐行为的性别差异
作者：
C. Wehrhahn
从上方和侧面同时拍摄苍蝇。他们的飞行轨迹被逐帧分析。发现雄性和雌性苍蝇追逐其他苍蝇。但与男性的追逐相比，女性的追逐时间很短，而且控制得很差。雌性果蝇使用视野的下额部来追踪其他果蝇。雄性果蝇利用其视野的前半部分来达到这个目的。雄性苍蝇能够控制它们的前进速度，大致与它们与目标的距离成正比。讨论了最近发现的性异形视觉中间神经元的功能含义。
Flies were filmed simultaneously from above and from the side. Their flight tracks were analyzed frame by frame. Male and female flies were found to chase other flies. But female chases are brief and poorly controlled as compared to male chases. Female flies use the lower frontal part of their visual field for tracking other flies. Male flies use the upper frontal part of their visual field for that purpose. Male flies are capable of controlling their forward velocity roughly proportional to the distance to their target. Implications for the function of recently found sexdimorph visual interneurones are discussed.