不同的警告模式影响热带蝶的雄性和雌性交配行为
Chi-Yun Kuo1,2,3, Lina Melo-Flóres1,4, Andrea Aragón1,4
1Division of Evolutionary Biology, Ludwig-Maximilians-Universität München, Planegg-Martinsried, Germany.
Journal of evolutionary biology
|February 2, 2024
概括
在Heliconius cydno蝶中,雄性和雌性都喜欢同种类的翅膀颜色,有助于分类交配. 男性偏好更强,这表明它在生殖隔离中比女性偏好发挥更大的作用.
科学领域:
- 进化生物学是进化的生物学.
- 行为生态学 行为生态学
- 规格 规格 规格 规格
背景情况:
- 蝶的翅膀颜色在警告信号 (血症) 和伴侣选择中起着双重作用.
- 相互选择伴侣,即两性都使用相同的特征来决定交配,对于维持物种界限至关重要,但研究不足.
- 黑龙 cydno 蝶表现出白色的翅膀带,与他们的同情亲戚黑龙 melpomene 的红色带形成鲜明对比.
研究的目的:
- 为了研究视觉偏好在Heliconius cydno.中选择性交配中的作用.
- 评估相互选择伴侣对Heliconius cydno和Heliconius melpomene之间的生殖隔离的贡献.
- 为了确定雄性和雌性Heliconius cydno是否表现出对同种类的翅膀色彩的偏好.
主要方法:
- 分析已公布和新数据从男性偏好实验呈现同种和H. melpomene雌性.
- 在与同类雄性进行的选择实验中记录雌性反应和交配结果.
- 操纵雄性Heliconius cydno前翼带颜色 (白色与红色) 来测试雌性选择.
主要成果:
- 雄性和雌性Heliconius cydno都对同种类的翅膀颜色产生了更强烈的积极反应.
- 雄性Heliconius cydno表现出对具有自己的色彩的雌性有强烈的偏好.
- 女性选择实验表明,男性色彩没有显著预测交配结果.
结论:
- 男人对同种类的颜色的视觉偏好是Heliconius cydno的分类交配的一个重要因素.
- 雌性视觉偏好可能在伴侣选择中起到次要作用,因为雄性在蝶中开始求爱.
- 在Heliconius cydno和Heliconius melpomene之间,视觉偏好对生殖隔离的贡献似乎不对称.
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