飞行高度与高度相关的平行转移在初始的Heliconius物种中发生
David F Rivas-Sánchez1,2, Carlos H Gantiva-Q3, Carolina Pardo-Díaz3
1School of Biological Sciences, University of Bristol, Bristol, United Kingdom.
Journal of evolutionary biology
|January 29, 2024
概括
最近殖民高海拔森林的热带蝶的飞行高度较低. 这种由生态选择驱动的行为适应,对于这些昆虫群体的早期分歧和物种化至关重要.
科学领域:
- 生态生态学 生态生态学
- 进化生物学 进化生物学
- 动物学 动物学
背景情况:
- 热带昆虫群落的垂直分层受微气候,资源和相互作用的影响.
- 有限的研究存在于早期生殖隔离期间垂直空间使用的适应意义.
研究的目的:
- 分析Heliconius蝶在物种化事件中的飞行高度变化.
- 研究海拔变化和生态选择在驱动适应性特征分歧中的作用.
主要方法:
- 在野生的Heliconius erato venus和Heliconius chestertonii中测量飞行高度.
- 将飞行高度数据与Heliconius cyrbia和Heliconius himera的已发表结果进行比较.
- 分析了飞行高度变化的趋势,与高度殖民和生态因素相关.
主要成果:
- 山地专家Heliconius chestertonii始终在较低的高度飞行,而不是它的低地对应物.
- 最近殖民高海拔森林的物种表现出较低的飞行高度.
- 在Heliconius himera和Heliconius chestertonii中观察到飞行高度的平行特征转移,这是由共享的生态选择模式所驱动的.
结论:
- 飞行高度的行为调整在昆虫分歧的早期阶段是重要的,由高度变化介导.
- 当地适应可以通过飞行高度模式来表明,尽管资源分配没有直接相关.
- 森林结构和微气候变化可能会影响高空专家的飞行高度模式.
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