野生香草和授粉者在气候变化中面临空间不匹配的风险
Charlotte Watteyn1,2,3,4, Tobias Fremout5, Adam P Karremans2
1Department of Earth and Environmental Sciences, KU Leuven, Leuven, Belgium.
Frontiers in plant science
|July 18, 2025
概括
气候变化威胁着香草的野生亲属及其授粉者,造成息地丧失和范围不匹配. 保护工作至关重要,以保护这些重要的遗传资源,并确保它们的未来生存.
科学领域:
- 生态生态学 生态生态学
- 保护生物学 保护生物学
- 气候变化的影响 气候变化的影响
背景情况:
- 气候变化正在改变物种的地理范围,可能破坏生态相互作用.
- 农作物野生亲属 (CWR),就像野生香草一样,是改善农作物的重要遗传资源.
- 香草的持久性取决于它的授粉者,使它们的相互作用易受气候变化和人类压力的影响.
研究的目的:
- 评估气候变化对新热带香草物种及其授粉者的影响.
- 根据未来的气候场景,确定香草CWR及其授粉者之间的潜在空间不匹配.
- 为保护香草遗传资源的保护策略提供信息.
主要方法:
- 利用MaxEnt物种分布模型 (SDM) 来预测未来的范围.
- 在11个新热带香草CWR及其授粉者之间,范围的模拟变化重叠.
- 分析了两条共享社会经济路径 (SSP2-4.5和SSP3-7.0) 的2050年预测.
主要成果:
- 预计香草物种的范围变化 (收缩-1%至-53%;扩张+11%至+140%).
- 预计所有授粉者适合息地的显著下降 (-7%至-71%).
- 表明动物授粉的香草和授粉者之间的覆盖范围下降,特别是单个授粉者 (-60%至-90%) 的物种.
结论:
- 预计气候变化将导致香草CWR及其授粉者之间的空间不匹配.
- 预计保护区内合适范围的重叠将减少.
- 优先考虑在现场和现场保护的区域对于保护香草的遗传多样性至关重要.
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