侵入性物种的共存,相互主义和竞争
Naven Narayanan1, Peter Lutz2, Allison K Shaw2
1Simons Centre for the Study of Living Systems, National Centre for Biological Sciences, Bangalore, India.
Ecology
|February 24, 2025
概括
互惠主义可以使竞争物种能够在区域上共存,即使它们在本地无法共存. 将真菌的相互特征和分散纳入入入侵模型中,揭示了复杂的共存模式.
科学领域:
- 生态生态学 生态生态学
- 进化生物学 进化生物学
- 数学生物学 数学生物学
背景情况:
- 物种相互作用,特别是相互主义,对于理解入侵动态和共存至关重要.
- 现有的模型往往忽视了互惠主义者在调解共同入侵和物种共存方面的作用.
- 互惠主义,就像菌根真菌与植物一样,显著影响着种群动态和入侵潜力.
研究的目的:
- 调查互惠主义和竞争如何相互作用,以影响在共同入侵期间竞争物种的当地和区域共存.
- 开发一个空间显式模型,将两个竞争植物物种的共享真菌互助体纳入其中.
主要方法:
- 一个空间显式数学模型的开发.
- 模拟两个具有共享真菌相互影响的竞争植物物种的共同入侵动态.
- 分析互惠特征 (依赖,分散) 和竞争能力对共存结果的影响.
主要成果:
- 互利主义存在促进了竞争对手的区域共存,即使当地的共存是不可能的.
- 相互合作伙伴的分散增加导致竞争对手共存的急剧转变.
- 地方和地区共存的不同结果是相互依赖和竞争能力之间的相互作用的结果.
- 不对称的分散,由依赖-分散的权衡驱动,导致不太依赖互惠的物种被排除在外.
结论:
- 互惠主义在共同入侵期间塑造物种共存模式方面发挥着至关重要的作用.
- 结合相互主义特有的特征权衡和分散不对称性,为区域共存和入侵物种分布提供了新的见解.
- 未来的生态模型应该考虑相互性,竞争和分散之间的复杂相互作用,以预测物种分布.
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