现象学随着族系变化而变化,但随着气候变化而不是通过食物营养水平变化
Deirdre Loughnan1, Simon Joly2,3, Geoffrey Legault4
1Department of Forest and Conservation Sciences, Faculty of Forestry, University of British Columbia, Vancouver, British Columbia, Canada. deirdre.loughnan@ubc.ca.
Nature ecology & evolution
|September 4, 2024
概括
气候变化导致物种现象学转变,但最近的数据显示,相互作用物种之间的异步并没有普遍增加. 不均的物种采样可能会对估计产生偏差,使未来的生态预测变得复杂.
科学领域:
- 生态生态学 生态生态学
- 气候变化生物学 气候变化生物学
- 进化生物学 进化生物学
背景情况:
- 气候变化正在改变物种现象学,可能破坏生态相互作用和生态系统服务.
- 之前关于现象变化和异步的元分析由于数据的变化导致了相互矛盾的结果.
- 了解现象变化对于预测生态对全球变化的反应至关重要.
研究的目的:
- 调查不同分类群体的现象学转变的最新趋势.
- 为了确定现象学转移是否根据热量级或相互作用类型而有所不同.
- 评估类遗传学对现象转移估计的影响.
主要方法:
- 利用了先前研究的最新数据,涵盖29个分类类别的1,279个时间序列.
- 采用贝叶斯的遗传学模型来分析现象学数据.
- 通过对比的现象变化,按热带水平和相互作用类型分组 (已知的相互作用对与随机配对的物种).
主要成果:
- 种类现象学平均每十年进步3.1天.
- 根据热量级或相互作用类型,没有发现现象学转移的显著变化.
- 现象学转移显示了与原生学相关的变异 (λ = 0.4),表明来自不均物种采样的潜在偏差.
结论:
- 虽然个体物种表现出现象学上的进步,但尚未检测到相互作用物种之间现象学异步的广泛增加.
- 遗传学相关性和不均的物种采样可以影响现象学变化的估计.
- 由于数据偏差,预测生态后果具有挑战性,特别是对于未充分采样的群体.
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