相关实验视频
Updated: May 24, 2026

08:16
Experimental Protocol for Manipulating Plant-induced Soil Heterogeneity
Published on: March 13, 2014
在陆地植物入侵者中,气候利基变化是罕见的
Blaise Petitpierre1, Christoph Kueffer, Olivier Broennimann
1Department of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland.
概括
大多数入侵性植物在各大洲都保持着它们的气候利基要求. 这项研究表明,利基保护主义是常见的,支持使用生态利基模型来预测入侵和气候变化影响.
科学领域:
- 生态生态学 生态生态学
- 侵入性物种 生物学 生物学
- 气候变化科学 气候变化科学
背景情况:
- 预测生物入侵依赖于气候利基保守主义的假设.
- 最近的研究质疑了利基保护主义,表明一些入侵物种的利基转移.
- 了解利基保护主义对于有效的入侵物种管理和气候变化适应至关重要.
研究的目的:
- 对陆地植物入侵者的利基保护主义进行首次大规模评估.
- 测试入侵物种是否能够在整个欧亚,北美和澳大利亚的入侵范围中保持其本地气候.
- 评估使用生态利基模型用于入侵风险预测的有效性.
主要方法:
- 对比的气候利基重叠50陆地植物入侵者跨越本地和入侵范围.
- 利用气候数据来评估被入侵分布在本地气候之外的比例.
- 专注于确定大陆之间的模拟气候,以测试利基化的保守主义.
主要成果:
- 不到15%的研究物种显示,超过10%的被入侵范围超出了它们的原生气候.
- 在50个陆地植物入侵者中,发现实质性的利基转移是罕见的.
- 大多数入侵植物都表现出显著的气候利基保护主义.
结论:
- 这些发现支持对大多数陆地植物入侵者的气候利基保守主义的假设.
- 生态利基模型是预测生物入侵和物种对气候变化的反应的适当工具.
- 侵入性物种的利基保护主义促进了可靠的风险评估和管理策略.
相关概念视频
Epiphytes, Parasites, and Carnivores
Plants often form mutualistic relationships with soil-dwelling fungi or bacteria to enhance their roots’ nutrient uptake ability. Root-colonizing fungi (e.g., mycorrhizae) increase a plant’s root surface area, which promotes nutrient absorption. While root-colonizing, nitrogen-fixing bacteria (e.g., rhizobia) convert atmospheric nitrogen (N2) into ammonia (NH3), making nitrogen available to plants for various biological functions. For example, nitrogen is essential for the biosynthesis of the...
Ecological Niches
All organisms have a position within an ecosystem. The complete set of living and nonliving factors—including food resources, climate, and terrain—that define the position of a given organism are collectively referred to as the organism’s ecological niche.
Non-vascular Seedless Plants
The diverse plant life on Earth—consisting of nearly 400,000 species—can be divided into three broad categories based on biological characteristics: nonvascular, seedless vascular, and seed plants.
Introduction to Plant Diversity
From Water to Land
Ecological Succession
Ecological succession is influenced by the processes of facilitation, inhibition, and toleration. Facilitation occurs when early successional species create more favorable ecological conditions for subsequent species, such as enhanced nutrient, water, or light availability. In contrast, inhibition happens when early successional species create unfavorable ecological conditions for potential successive species, such as limiting resource availability. In some cases, later successional species...
Responses to Heat and Cold Stress
Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.
