陆地昆虫数量的异步与物种特征相对应
Kathryn E Powell1,2, Tom H Oliver2, Manuela González-Suárez2
1UK Centre for Ecology and Hydrology Wallingford Oxfordshire UK.
Ecology and evolution
|February 2, 2024
概括
物种特征的不相似性,特别是在像表观学这样的暴露特征中,推动了昆虫种群的异步. 这种异步增强了昆虫群体对环境变化的弹性.
科学领域:
- 生态生态学 生态生态学
- 人口动态 人口动态
- 社区的稳定 社区的稳定
背景情况:
- 人口异步通过缓冲环境变化来稳定生态系统.
- 无生物因素和物种特征都影响着种群动态和异步.
- 特别是在昆虫中,物种特征不相似性和丰度异步性之间的经验联系很少.
研究的目的:
- 为了研究双向物种特征不相似性和,蝶和大黄蜂的丰富异步之间的关系.
- 通过暴露多样性来区分与环境敏感性相关的特征与利基分区.
- 为特征不相似性在昆虫种群动态中的作用提供经验证据.
主要方法:
- 分析了来自英国422种,蝶和大黄蜂的数据.
- 计算了对对的物种特征不相似性,重点关注与环境敏感性和暴露相关的特征.
- 检查了跨年丰度变化及其与特征不相似性的相关性,控制了家族遗传关系.
主要成果:
- 种特征不相似性与所有三种昆虫群体的丰富异步正相关.
- 与环境暴露相关的特征,特别是现象特征,显示出与丰度异步的最强联系.
- 即使考虑到共同的进化历史,观察到的关系仍然是正确的.
结论:
- 物种特征的不相似性,特别是那些影响环境暴露和敏感性的特征,对于昆虫繁多的时间差异至关重要.
- 更大的特征多样性,特别是与暴露相关的特征,可以增强昆虫社区对环境波动的弹性.
- 这项研究强调了特征多样性在通过人口异步维持生态系统稳定的重要性.
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