气候变化加剧了植物与授粉者不匹配,并增加了北度植物的二次灭绝风险
Shijia Peng1,2, Aaron M Ellison1,3, Charles C Davis1
1Department of Organismic and Evolutionary Biology, Harvard University Herbaria, Harvard University, Cambridge, MA 02138.
概括
气候变化导致植物和授粉者之间的现象不匹配,增加了植物的灭绝风险,特别是在高度地区. 为了有效的植物保护,保护工作必须考虑这些生态破坏.
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
- 保护生物学 保护生物学
背景情况:
- 气候变化改变了物种的现象学,导致相互依赖的物种之间潜在的不匹配.
- 现象学不匹配,特别是植物和授粉者之间的不匹配,可以减少植物繁殖并增加灭绝风险.
- 由于这些生态破坏,二次灭绝风险在未来的气候情景下很少被评估.
研究的目的:
- 为了量化二次植物灭绝的风险在 * Viola * 种类由于其与蜜蜂授粉者在气候变化下的现象学不匹配.
- 检查植物二次灭绝风险的地理模式以及授粉者类型 (通用主义者与专家) 的影响.
- 强调将二次灭绝风险纳入保护框架的必要性.
主要方法:
- 使用过的电话. 15000个众筹样本记录了120年的*Viola*物种和单独的蜜蜂授粉者.
- 综合气候数据,现象学信息和物种分布模型,以评估灭绝风险.
- 分析了地理模式和植物与授粉者相互作用对风险的影响.
主要成果:
- 维奥拉 (Viola) 种类的二次本地灭绝风险随着度的增加而增加,对北方植物-蜜蜂授粉者网络构成更大的威胁.
- 灭绝风险对现象不匹配的敏感性因度而异,专业蜜蜂在更高的度上表现出更明显的下降.
- 仅基于初级灭绝风险的现有保护优先级可能不足.
结论:
- 未来的气候变化对植物传粉网络构成重大威胁,特别是在北度地区.
- 保护策略必须考虑到因现象学不匹配而产生的二次灭绝风险.
- 整合生态不匹配风险对于有效的全球保护框架至关重要.
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