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在融合的雄性生殖形态中,不同的替代性交配策略
Renjie Zhang1, Nathan W Bailey1
1School of Biology, University of St Andrews, St Andrews, Fife KY16 9TH, United Kingdom.
概括
夏威夷野表现出不同的生殖现象型. 令人惊的是,平翼雄性,与卷曲翼和正常翼雄性不同,不太可能使用卫星行为,这表明解的策略促进交配多样性.
科学领域:
- 进化生物学 进化生物学
- 行为生态学 行为生态学
- 动物行为 动物行为
背景情况:
- 替代生殖现象型 (ARP) 涉及性别内的多态行为和形式.
- 了解生殖多样性的起源需要测试行为和形态多态的共同表达或脱.
- 夏威夷野 (Teleogryllus oceanicus) 提供了一个模型系统,原因是寄生虫驱动的雄性翅膀突变的快速并行进化.
研究的目的:
- 为了研究夏威夷野的男性形态和卫星行为之间的关系.
- 为了确定"平翼"和"卷曲翼"形态是否与祖先的"正常翼"雄性相比,表现出不同的倾向,采用卫星战术.
- 评估身体状况对不同男性形态的卫星行为的影响.
主要方法:
- 在模拟的自然条件下,使用处女,未经操纵的雄性进行了回放实验.
- 测量了"平坦翼"",卷曲翼"和"正常翼"雄性参与卫星行为的倾向.
- 进行了统计分析,以比较卫星行为频率,并评估身体状况的作用.
主要成果:
- 与正常翅膀或卷曲翅膀的雄性相比,平翼雄性显着不太可能表现出卫星行为.
- 身体状况较差的正常翼雄性更有可能采用卫星战术.
- 降低声音形态 (平翼和卷曲翼) 的卫星行为并不取决于身体状况.
结论:
- 卫星行为倾向的形态特异变异可能有助于在夏威夷野中保持融合的雄性生殖形态.
- 行为战术和形态策略之间的脱关系可以促进替代性交配形态的多样化.
- 未来的研究应该探索声学自我评估在驱动形态之间的行为变异中的作用.
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