相关实验视频
Updated: Jun 4, 2025
08:39
Simulating Temperature in a Soil Incubation Experiment
Published on: October 28, 2022
2.8K
基于Biomod2的气候变化下的Ammannia coccinea的全球地理分布和生态利基动态的估计
YanJing Zhang1, Jie Hu1, ChenBin Wang1
1Nanjing Institute of Environmental Sciences, Ministry of Environmental Environment, State Key Laboratory of Environmental Protection and Biosafety, Nanjing, 210042, China.
Scientific reports
|December 20, 2024
概括
预计由于气候变化,威胁大米作物的入侵植物Ammannia coccinea将在全球范围内扩大其适合的息地. 早期检测和控制对于大米安全和生物多样性保护至关重要.
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
- 农业科学 农业科学
- 气候变化影响评估
背景情况:
- 侵入性外来植物,如Ammannia coccinea,严重威胁生物多样性和农业经济.
- 阿曼尼亚菌 (Ammannia coccinea) 通过在田中竞争,对大米生产构成直接威胁.
- 关于阿曼尼亚菌的全球分布和生态利基动态的研究有限,这阻碍了有效的管理.
研究的目的:
- 在各种气候场景下分析Ammannia coccinea目前和未来的地理分布.
- 量化和分析Ammannia coccinea生态利基中的变化.
- 为开发早期预警和控制战略提供见解,以减轻对大米生产和生物多样性的影响.
主要方法:
- 利用Biomod2平台进行组合建模,整合环境和物种发生数据.
- 分析了当前和未来气候场景下的分布范围变化和生态利基动态.
- 确定了影响物种分布的关键环境因素,包括温度,降水和人类影响指数.
主要成果:
- 在南北美洲,南美洲,欧洲,中东,非洲和亚洲,已经确定了适合Ammannia coccinea的潜在地区.
- 预计随着时间的推移,中高适宜性息地将逐渐增加.
- 虽然整体的生态利基保持稳定,但预计会有轻微的变化,气候变化推动息地扩张.
结论:
- 气候变化是Ammannia coccinea适合区域的扩张和生态的转移的一个重要驱动因素.
- 影响分布的关键因素包括温度,降水和人类的影响.
- 战略干预对于阿曼尼亚菌的潜在分布与重要的水种植区重叠的地区至关重要,以确保全球水安全并保护生物多样性.
相关概念视频
01:50Global Climate Change
24.2K
Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.
24.2K
02:02Ecological Niches
23.5K
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.
23.5K
01:16What is Climate?
18.3K
Climate refers to the prevailing weather conditions in a specific area over an extended period. As the saying goes, “Climate is what you expect. Weather is what you get.” Climate is influenced by geographic factors, such as latitude, terrain, and proximity to bodies of water.
18.3K
01:57Adaptations that Reduce Water Loss
25.1K
Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.
25.1K
00:54Distribution and Dispersion
21.6K
To understand intra-specific interactions in populations, scientists measure the spatial arrangement of species individuals. This geographic arrangement is known as the species distribution or dispersion. Highly territorial species exhibit a uniform distribution pattern, in which individuals are spaced at relatively equal distances from one another. Species that are highly tied to particular resources, such as food or shelter, tend to concentrate around those resources, and thus exhibit a...
21.6K
01:27C4 Pathway and CAM
45.2K
Most plants use the C3 pathway for carbon fixation. However, some plants, such as sugar cane, corn, and cacti that grow in hot conditions, use alternative pathways to fix carbon and conserve energy loss due to photorespiration. Photorespiration is the process that occurs when the oxygen concentration is high. Under such conditions, the rubisco enzyme in the Calvin cycle binds O2 instead of CO2, which halts photosynthesis and consumes energy.
C4 Pathway
The C4 pathway is used by plants such as...
C4 Pathway
The C4 pathway is used by plants such as...
45.2K