一只小提琴在其扩大范围内的植物生长减少
Kayla S Martínez-Soto1, David S Johnson1
1Virginia Institute of Marine Science, William & Mary, Gloucester Point, Virginia, USA.
Ecology
|November 5, 2023
概括
气候变化导致物种范围的变化. 大西洋沼泽小提琴 (Minuca pugnax) 在其新范围中对草产生负面影响,与其历史上的积极影响不同.
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
- 海洋生物学 海洋生物学
背景情况:
- 气候变化正在推动全球物种范围的扩大.
- 生态系统工程师,就像挖洞的一样,可以显著改变接收者息地.
- 大西洋沼泽小提琴 (Minuca pugnax) 已向北扩大其范围.
研究的目的:
- 研究大西洋入侵性沼泽小提琴 (Minuca pugnax) 在其扩大范围的生态影响.
- 为了比较M. pugnax对Spartina alterniflora在其新范围和历史范围中的影响.
- 评估M. pugnax如何影响基础盐沼原生产者.
主要方法:
- 采用了一种控制-影响研究设计.
- 测量了Spartina alterniflora的地面和地下生物量.
- 在M. pugnax的存在和缺席下量化了本土微藻生物量.
主要成果:
- 在有M. pugnax.的地区,Spartina alterniflora的地面生物量下降了40%.
- 在M. pugnax的存在下,Spartina alterniflora地下生物量下降了30%.
- 在M. pugnax存在的地方,本土微藻生物量减少了45%,表明了放牧效应.
结论:
- 与其历史范围相比,M. pugnax对Spartina alterniflora的生态影响在其扩大范围中是逆转的.
- 在被侵占的盐沼地区,M. pugnax作为主要生产者的重要调节者.
- 扩大范围的物种,特别是生态系统工程师,可以对新生态系统产生反向和深刻的影响,影响碳储存和积累等功能.
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