生态学需要克服孤立的建模
1Helmholtz Centre for Environmental Research - UFZ, Department of Ecological Modelling, Permoserstr. 15, 04318 Leipzig, Germany; University of Potsdam, Department of Plant Ecology and Nature Conservation, Am Mühlenberg 3, 14476 Potsdam-Golm, Germany; German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Puschstr. 4, 04103 Leipzig, Germany.
Trends in ecology & evolution
|September 24, 2023
概括
重新实施了八种南极的生长模型,揭示了高度可变的预测. 实现连贯的生态建模需要系统的比较和一个共同的科学语言,南极的动态.
科学领域:
- 海洋生物学 海洋生物学
- 生态建模 生态建模
- 南极洲的生态系统
背景情况:
- 对南极 (Euphausia superba) 的准确建模对于了解南洋食物网至关重要.
- 南极的现有生长模型在预测中表现出显著的差异.
- 模型输出的变化阻碍了对鱼种群动态和生态系统影响的可靠评估.
研究的目的:
- 重新实施和评估南极鱼现有的八种生长模式.
- 为了确定模型预测之间的分歧的原因.
- 提出一个框架,以提高南极模型的连贯性.
主要方法:
- 重新实施八个已发表的南极生长模型,尽可能使用一致的参数化.
- 在定义的环境场景下对模型输出进行比较分析.
- 模型结构和基本假设的定性评估.
主要成果:
- 重新实施的模型对南极的生长和生物量产生了截然不同的预测.
- 差异归因于模型结构,参数化和纳入的生物过程的差异.
- 没有一个单一的模型在所有场景中始终优于其他模型.
结论:
- 系统的模型比较和集成是必要的,以实现更连贯的预测.
- 制定标准化的"共同语言"或框架对于整合和推进南极模拟工作至关重要.
- 未来的研究应该专注于模型相互比较研究和开发更强大的,统一的建模方法.
更多相关视频
相关概念视频
Conservation of Small Populations
13.2K
Small population sizes put a species at extreme risk of extinction due to a lack of variation, and a consequent decrease in adaptability. This weakens the chances of survival under pressures such as climate change, competition from other species, or new diseases. Large populations are more likely to survive pressures such as these, as such populations are more likely to harbor individuals that have genetic variants that are adaptive under new stresses. Small populations are much less...
13.2K
Mechanistic Models: Compartment Models in Individual and Population Analysis
64
Mechanistic models are utilized in individual analysis using single-source data, but imperfections arise due to data collection errors, preventing perfect prediction of observed data. The mathematical equation involves known values (Xi), observed concentrations (Ci), measurement errors (εi), model parameters (ϕj), and the related function (ƒi) for i number of values. Different least-squares metrics quantify differences between predicted and observed values. The ordinary least...
64
Ecological Niches
23.8K
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.
23.8K
Ecological Disturbance
17.1K
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.
17.1K
Conservation of Declining Populations
9.7K
Conservation of declining population focuses on ways of detecting, diagnosing, and halting a population decline. The approach uses methods to prevent populations from going extinct.
9.7K
Multicompartment Models: Overview
170
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,...
170


