需要高分辨率的数据来了解气候对森林草的植物群动态的影响
Ditte M Christiansen1,2, Gesa Römer3,4, Johan P Dahlgren3,4
1Department of Ecology, Environment and Plant Sciences, Stockholm University, Stockholm, Sweden.
Ecology
|October 25, 2023
概括
当地气候数据,而不是区域平均值,对于了解植物种群动态至关重要. 使用精细的温度测量揭示了春季对森林草本生长和生存的影响,通常被更广泛的气候数据遗漏.
科学领域:
- 生态生态学 生态生态学
- 人口生物学 人口生物学
- 气候变化生物学 气候变化生物学
背景情况:
- 气候显著影响物种的分布和丰度,但粗略的气候数据可能不反映当地条件.
- 像植物一样,性生物对微气候变化特别敏感,微气候变化可能与区域气候平均值有很大差异.
研究的目的:
- 量化当地温度对森林草 Lathyrus vernus 的生命率和种群增长率的影响.
- 评估温度数据的空间分辨率如何影响气候对人口动态影响的检测.
主要方法:
- 利用现场温度记录器数据和整体投影模型与瑞典各地37个Lathyrus vernus种群的人口统计数据.
- 使用当地温度数据与不同空间分辨率 (≥1公里) 的区域聚合温度数据进行了气候影响评估的比较.
主要成果:
- 当地温度数据显示,春季对Lathyrus vernus的种群增长率和生存率产生了负面影响.
- 区域温度数据未能始终地检测到春季对人口动态的显著负面影响.
结论:
- 使用区域聚合气候数据的分析往往忽略了对种群动态的关键影响,特别是对于静止生物.
- 高空间分辨率的准确,与生物体相关的气候数据对于理解个体表现,种群动态和物种分布建模至关重要.
关键词:
拉提鲁斯 (Lathyrus vernus) 是一种白色的植物.气候变化 气候变化 气候变化气候尺度上的气候尺度.人口学 人口学 人口学整体投影模型是一个完整的投影模型.微观气候 微观气候是一种微观气候.植物种群动态 植物种群动态人口增长率的人口增长率.种类分布,物种分布.春天的 在春天的更多相关视频
相关概念视频
01:57Adaptations that Reduce Water Loss
25.6K
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.
25.6K
02:45Responses to Heat and Cold Stress
13.5K
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.
13.5K
01:50Global Climate Change
24.4K
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.
24.4K
02:16Light Acquisition
8.5K
In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.
8.5K