空间显式生态建模改进了植物病原体分散的经验特征
Petteri Karisto1,2, Frédéric Suffert3, Alexey Mikaberidze1,4
1Plant Pathology Group, Institute of Integrative Biology ETH Zurich Zurich Switzerland.
Plant-environment interactions (Hoboken, N.J.)
|June 8, 2023
概括
测量分散是具有挑战性的. 这项研究引入了一种新理论,可以从分散梯度准确估计分散核,揭示植物病原体的分散距离比以前想象的要短.
科学领域:
- 生态生态学 生态生态学
- 数学生物学 数学生物学
- 植物病理学 植物病理学
背景情况:
- 分散是一种基本的生态过程,对于理解物种的范围动态至关重要.
- 由于源大小对分散梯度的影响,准确量化分散具有挑战性.
- 现有的方法往往以点状的方法近似来源,可能导致不准确的分散估计.
研究的目的:
- 开发一个理论框架,用分散梯度来估计分散核,同时考虑源的空间范围.
- 用新的理论方法重新评估主要植物病原体的分散距离.
- 为了提高在生态研究中分散测量的准确性.
主要方法:
- 制定一种新理论,将源空间范围纳入其中,以估计分散核.
- 对三种主要植物病原体的已公布的分散梯度数据进行重新分析.
- 新估计的分散距离与传统估计的比较.
主要成果:
- 开发的理论成功地通过计算源大小来估计分散核.
- 重新分析显示,三个主要的植物病原体的传播距离远远短于此前估计的距离.
- 这些发现挑战了传统的估计,并突出了分散研究中源大小的重要性.
结论:
- 新的理论方法提供了一个更准确的方法来描述从分散梯度的分散.
- 修订的植物病原体分散估计对理解和管理它们的传播有影响.
- 这种方法可以应用于大量现有数据,以提高对分散过程的生态知识.
相关概念视频
Gene Flow
35.3K
Gene flow is the transfer of genes among populations, resulting from either the dispersal of gametes or from the migration of individuals.
35.3K
Distribution and Dispersion
21.9K
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...
21.9K
Model Approaches for Pharmacokinetic Data: Distributed Parameter Models
100
Pharmacokinetic models are mathematical constructs that represent and predict the time course of drug concentrations in the body, providing meaningful pharmacokinetic parameters. These models are categorized into compartment, physiological, and distributed parameter models.
The distributed parameter models are specifically designed to account for variations and differences in some drug classes. This model is particularly useful for assessing regional concentrations of anticancer or...
The distributed parameter models are specifically designed to account for variations and differences in some drug classes. This model is particularly useful for assessing regional concentrations of anticancer or...
100
Physiological Pharmacokinetic Models: Blood Flow-Limited Versus Diffusion-Limited Models
119
Physiological pharmacokinetic models, often called flow-limited or perfusion models, typically assume a swift drug distribution between tissue and venous blood, creating a rapid drug equilibrium. This premise is based on the idea that drug diffusion is extremely fast, and the cell membrane presents no barrier to drug permeation. In this scenario, where no drug binding occurs, the drug concentration in the tissue equals that of the venous blood leaving the tissue. This greatly simplifies the...
119
Ecological Disturbance
17.2K
An ecological disturbance is a temporary disruption in the environment resulting from abiotic, biotic, or anthropogenic factors, causing a pronounced change in an ecosystem. The impact of an ecological disturbance, which can depend on its intensity, frequency, and spatial distribution, plays a significant role in shaping the species diversity within the ecosystem.
17.2K
Short-distance Transport of Resources
16.2K
Short-distance transport refers to transport that occurs over a distance of just 2-3 cells, crossing the plasma membrane in the process. Small uncharged molecules, such as oxygen, carbon dioxide, and water, can diffuse across the plasma membrane on their own. In contrast, ions and larger molecules require the assistance of transport proteins due to their charge or size. Transport across membranes also occurs within individual cells, playing a variety of essential roles for the plant as a whole.
16.2K


