温带森林地下草的冰川后范围形成 - 从空间时间显式建模方法的见解
Wolfgang Willner1, Johannes Wessely1, Andreas Gattringer1,2
1Department of Botany and Biodiversity Research University of Vienna Rennweg 14 Vienna 1030 Austria.
概括
森林地下植物的后冰期范围动态是由广泛的生态利基和罕见的长距离分散事件驱动的. 分散的随机性解释了碎片化的物种分布,即使具有相似的避难所和宽容度.
科学领域:
- 生态生态学 生态生态学
- 进化生物学 进化生物学
- 古生态学 古生态学
背景情况:
- 对于森林地下植物的普莱斯托纪避难所和冰河后再殖民路线的知识有限.
- 种类表现出狭窄的范围和碎片化的模式,表明复杂的生态容忍和分散限制.
- 解开这些因素在塑造当前分布中的相对作用是具有挑战性的.
研究的目的:
- 为了重建五种欧洲森林地下草药的冰川后范围动态.
- 研究生态,人口统计率和分散能力对物种分布的影响.
- 确定解释当前地理范围和碎片化模式的关键因素.
主要方法:
- 空间-时间显式建模被用来模拟从纪避难所传播的物种.
- 植物地理分析确定了研究物种的潜在避难所.
- 模型参数 (利基范围,分散率) 变化以匹配当前物种范围.
主要成果:
- 在研究的物种中观察到一个一致的最佳参数设置模式.
- 广泛的生态利基与罕见的长距离分散事件相结合,最好地解释了物种分布.
- 罕见的长距离分散,虽然不频繁,但在模拟范围扩展中引入了显著的变化.
结论:
- 森林底层物种的分散范围是由于广泛的利基和罕见的长距离分散造成的.
- 分散的随机性在确定当前物种范围方面起着至关重要的作用.
- 奇异的分布模式源于分散的随机性,尽管在避难区和容忍度上有相似之处.
相关概念视频
Global Climate Change
24.3K
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.
24.3K
Levels of Use of a GIS
50
Geographic Information Systems (GIS) operate across three levels of application, each representing an increasing degree of complexity: data management, analysis, and prediction. These levels reflect the expanding functionality and versatility of GIS technology in handling spatial data for diverse purposes.Data ManagementAt its foundational level, GIS serves as a tool for data management, enabling the input, storage, retrieval, and organization of spatial data. This level is often employed in...
50
Multicompartment Models: Overview
142
Multicompartment models are mathematical constructs that depict how drugs are distributed and eliminated within the body. They segment the body into several compartments, symbolizing various physiological or anatomical areas connected through drug transfer processes such as absorption, metabolism, distribution, and elimination.
These models offer a more comprehensive representation of drug behavior in the body than one-compartment models. They accommodate the complexity of drug distribution,...
These models offer a more comprehensive representation of drug behavior in the body than one-compartment models. They accommodate the complexity of drug distribution,...
142
Methods of Obtaining Topography
65
Topography involves measuring and mapping land elevations, natural features, and artificial structures to create accurate representations of the terrain. Topographic surveying relies on traditional and modern methods, each with distinct advantages and limitations.Traditional Surveying Methods:Transit stadia surveys and plane table surveys were widely used traditional surveying methods. These techniques relied on instruments like theodolites and stadia rods for measuring distances and angles,...
65
Meristems and Plant Growth
45.9K
Plants grow throughout their lives; this is called indeterminate growth, and it distinguishes plants from most animals. Although certain parts of plants stop growing (e.g., leaves and flowers), others grow continuously—like roots and stems.
45.9K
Speciation Rates
21.2K
Overview
21.2K


