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首页> 外文期刊>Zoological Science >Discrimination of conspecific individuals via cuticular pheromones by males of the cricket Gryllus bimaculatus.
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Discrimination of conspecific individuals via cuticular pheromones by males of the cricket Gryllus bimaculatus.

机译：biGryllus bimaculatus的雄性通过表皮信息素区分同种个体。

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Cuticular substances on the body surface of crickets serve as pheromones that elicit a variety of different behaviors in male crickets. Antennal contact between males and females resulted in courtship behavior, and that between two males resulted in aggressive displays. As a first step in elucidating how crickets recognize and discriminate individuals, behavioral responses of male individuals to cuticular substances of conspecific males or females were investigated. The behavioral responses of males to antennal or palpal stimulation with an isolated antenna from a male or a female were recorded. To both antennal and palpal stimulation with female antennae, the majority of males responded with courtship behavior; to stimulation with male antennae, males responded with aggressive displays. To gain insight into the chemical nature of the behaviorally relevant components, isolated antennae were washed in either n-hexane, acetone or ethanol before behavior assays. Washed antennae no longer elicited courtship or aggressive responses in males. Next, polypropylene fibers were smeared with substances from the body surface of females and used for antennal stimulation. This experiment showed that the quality and quantity of cuticular substances appear to be highly age-dependent. Significantly more males responded with courtship behavior to cuticular substances from younger females. Isolated males generally showed higher levels of aggression than males reared in groups. Grouped males also were more likely to display courtship behavior towards antennae from younger females, and aggressive behavior towards antennae from older females. These results suggest that male discrimination of mating partners depends on the nature of female cuticular substances..
机译：the体表上的表皮物质可作为信息素，引起雄性的各种不同行为。男性和女性之间的天线接触导致求偶行为，而两个男性之间的天线接触导致攻击性展示。作为阐明如何识别和区分个体的第一步，研究了男性个体对同种雄性或雌性表皮物质的行为反应。记录了男性对孤立于男性或女性的触角或触角刺激的行为反应。对于雌性触角的触角和触诊刺激，大多数男性以求偶行为做出反应。对于雄性触角的刺激，雄性表现出攻击性显示。为了深入了解行为相关成分的化学性质，在行为分析之前，将分离的触角在正己烷，丙酮或乙醇中洗涤。洗过的触角不再引起男性的求爱或积极反应。接下来，将聚丙烯纤维从雌虫的体表上涂抹下来，用于触角刺激。该实验表明，表皮物质的质量和数量似乎高度依赖年龄。显着更多的男性对年轻女性的表皮物质产生了求爱行为。与成群饲养的雄性相比，孤立的雄性通常表现出更高的攻击性。成年男性也更有可能表现出年轻女性对触角的求爱行为，以及较年长女性对触角的攻击行为。这些结果表明，男性对配偶的歧视取决于女性表皮物质的性质。

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