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在植物遗传学框架下,与息地适应性和生存率相关
Eun Hye Kim1, James D Hitchmough2, Ross W Cameron2
1School of Geography University of Nottingham Nottingham UK.
Ecology and evolution
|March 3, 2025
概括
种类分布模型经常将息地适宜性 (HS) 与实际生存率 (SR) 错误对齐. 我们的研究表明,利基的重叠并不能预测生存,强调了在生态利基建模中需要植物遗传学的洞察力.
科学领域:
- 生态生态学 生态生态学
- 生物地理学是生物地理学.
- 保护生物学 保护生物学
背景情况:
- 物种分布模型 (SDM) 根据地理分布预测息地适宜性 (HS),这是真正的生态的子集.
- 这种限制导致预测HS与实际生态性能之间的差异,特别是在新环境中.
- 了解这一差距对于准确的生态预测和保护工作至关重要.
研究的目的:
- 调查在英国种植的三种东亚*Acer*物种的模拟HS和实证生存率 (SRs) 之间的差异.
- 测试假设,更大的利基与本地物种重叠与更高的HS和SR相关.
- 探索遗传学关系在解释观察到的生存模式中的作用.
主要方法:
- 在 *Acer davidii*, *A. palmatum*, *A. pictum* 和英国/欧洲本土的 *Acer* 种类之间,量化了利基相似性.
- 校准的MaxEnt SDMs使用本地发生和预测HS到英国地区.
- 使用长期库存数据对本地物种进行标准化SR.
主要成果:
- 利基重叠通常与预测的HS相关,但SR模式显示了反向关系.
- *A. davidii*具有较高的利基重叠和HS,但最低的SR.
- *A. pictum*呈现出较低的利基重叠和HS,但SR最高,与本地物种相似.
结论:
- 传统的SDM可能无法准确地预测物种的现实世界表现,原因是隐藏的内在特征.
- 遗传学关系似乎影响了保存的气候耐受性,影响了生存率.
- 综合遗传学与SDM的跨学科方法提供了对生态利基保护主义和物种表现的更细致的理解.
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