Wing coloration and courtship behaviour of the damselfly Calopteryx japonica

豆娘 Calopteryx japonica 的翅膀颜色和求偶行为

• 批准号: 21570076
• 负责人: HARIYAMA Takahiko
• 金额: $ 3.24万
• 依托单位: Hamamatsu University School of Medicine
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21570076/
• 关键词: 視覚コミュニケーション; アオハダトンボ; 成熟・未成熟; 高速液体クロマトグラフィー; 視力; 視細胞; 構造色; 多層膜干渉

Damselflies of the genus Calopteryx japonica feature two types of colour polymorphism in their wings. The wings of both immature and mature females have a brown-greyish, gynochrome colour. The wings of the immature male also have the gynochrome colour, but the mature male wings have a bright blue-green, androchrome colour, due to iridescent wing veins. We found that the adult males in their territory attack other mature males, but not females and immature males, suggesting that males visually distinguish the androchrome colour. In choice experiments, we presented four different tethered models to territorial males. The territorial male attacked the mature male model, and showed reproductive behaviour display towards the mature female model. Covering the wings of a mature male model with grey spray resulted in a complete disappearance of the aggressive behaviour of the territorial males. On the other hand, female models with wings covered by bright blue-green particles, thus mimicking a mature male, were attacked by territorial males. The results indicate that the bright blue-green iridescence of the wings of C. japonica males plays a significant role in male territorial behaviour.

日本斑潜蝇属的蜻蜓在翅膀上有两种类型的颜色多态。未成熟和成熟雌性的翅膀都有棕灰色和雌雄激素的颜色。未成熟雄性的翅膀也具有雌雄色素的颜色，但成熟的雄性翅膀具有明亮的蓝绿色和雄色素颜色，这是由于彩虹色的翼脉。我们发现，在它们的领地里，成年雄性攻击其他成熟雄性，但不攻击雌性和未成熟雄性，这表明雄性在视觉上区分雄激素的颜色。在选择实验中，我们向领地雄性提供了四种不同的拴系模型。领域性雄性攻击成熟雄性模型，并对成熟雌性模型表现出生殖行为。用灰色喷雾覆盖一只成熟雄性模型的翅膀，导致领地雄性的攻击性行为完全消失。另一方面，翅膀上覆盖着明亮的蓝绿色颗粒的女性模特，因此模仿成熟的男性，受到领土男性的攻击。结果表明，日本对虾雄虫翅膀的亮蓝绿色虹彩对雄虫的领地行为有重要影响。

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