在农作物害虫捕食者系统中,在气候变化下进化救援的地理变化
Xuezhen Ge1,2, Jonathan A Newman2, Cortland K Griswold1
1Department of Integrative Biology University of Guelph Guelph Ontario Canada.
Evolutionary applications
|July 23, 2024
概括
气候变化威胁着物种,但进化适应可以帮助. 这项研究表明,虽然一些母鸟可以适应,但其他母鸟面临灭绝,突出了生态和进化之间的复杂相互作用.
科学领域:
- 生态生态学 生态生态学
- 进化生物学 进化生物学
- 气候变化科学 气候变化科学
背景情况:
- 物种分布模型 (SDM) 经常假设利基保守主义,可能低估了气候变化下的范围变化.
- 忽视进化救援可能会导致对物种未来分布的不准确预测.
- 捕食者-猎物系统面临着适应环境变化的独特挑战.
研究的目的:
- 在气候变化下,探索进化救援在虫-母鸟捕食者-猎物系统中.
- 为了模拟热性能的适应性变化,考虑生物相互作用.
- 评估气候变化对物种带有和没有进化适应的范围的影响.
主要方法:
- 开发了一种生态进化模型,用于捕食者-猎物系统 (虫和).
- 模拟了物种热性能的适应性变化.
- 纳入生物相互作用和气候变化场景.
主要成果:
- 如果没有适应,气候变化会减少虫种群,并导致美国大部分地区的母鸟灭绝.
- 随着适应,虫适应变暖,但金雀表现出多样化的救援潜力,南部种群的表现更好.
- 由于严重的变暖和季节性,北方娘面临灭绝;高温可以减少猎物的可用性,限制捕食者的适应.
结论:
- 进化适应对于预测物种对气候变化的反应至关重要.
- 气候变化的影响是由生态 (猎物可用性,季节长度) 和进化 (适应能力) 因素的相互作用来调节的.
- 气候变化严重程度和季节性的地理变化影响了进化救援的潜力.
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