Related Experiment Video
Updated: Jun 13, 2026

04:35
Development of an Individual-Tree Basal Area Increment Model using a Linear Mixed-Effects Approach
Published on: July 3, 2020
A structured and dynamic framework to advance traits-based theory and prediction in ecology
Colleen T Webb1, Jennifer A Hoeting, Gregory M Ames
1Department of Biology, Colorado State University, Fort Collins, CO 80524, USA. ctwebb@lamar.colostate.edu
Ecology Letters
|May 12, 2010
Summary
Predicting ecological changes requires a new framework. This approach uses trait distributions and performance filters to forecast community shifts and ecosystem functions, advancing predictive ecology.
Area of Science:
- Ecology
- Ecological modeling
Background:
- Predicting ecological changes is a significant challenge.
- Traits-based approaches are of interest but lack generalizability.
Purpose of the Study:
- To propose a theoretical framework for advancing predictive ecology using traits.
- To identify quantitative methods suitable for testing traits-based hypotheses.
Main Methods:
- Proposed a framework with three elements: trait distribution, performance filter, and dynamic projection.
- Defined criteria for quantitative methods based on performance filter dynamics.
- Identified Bayesian multilevel models, dynamical systems models, and hybrid approaches as suitable.
Main Results:
- The proposed framework enables prediction of trait distribution changes and their impact on community composition and ecosystem function.
- The framework's criteria guide the selection of appropriate quantitative methods.
Conclusions:
- A coherent theoretical framework is essential for advancing traits-based ecology.
- Specific quantitative methods can effectively test traits-based hypotheses within this framework.
- This approach offers a path toward more general and predictive ecological insights.
Related Concept Videos
Evolutionary Psychology
Evolutionary psychology explores the origins of human behavior and mental processes by framing them within the context of natural selection, a theory famously propounded by Charles Darwin. This field asserts that many behaviors common across human societies — ranging from instinctive fear reactions to complex social interactions — arose as evolutionary adaptations. These adaptations enhanced the survival and reproductive success of our ancestors, thereby becoming embedded in the human psyche...
Trait Theory by Gordon Allport
Gordon Allport, often regarded as the father of American personality psychology, developed a theory that emphasized the importance of understanding people in their present lives rather than focusing on their past, as psychoanalysis did. Allport believed that personality should be studied in healthy, well-adjusted individuals rather than those with psychological problems. He was particularly interested in defining traits, which he saw as fundamental mental structures that guide behavior across...
Personality Theory by Eysenck and Eysenck
Hans and Sybil Eysenck developed a widely recognized theory of personality, which emphasizes the role of temperament and genetically based differences in shaping individual traits. Their theory posits that biological factors primarily determine personality and can be understood through two main dimensions: extroversion/introversion and neuroticism/stability.
In the extroversion/introversion dimension, highly extroverted people are sociable, outgoing, and easily connect with others. In contrast,...
In the extroversion/introversion dimension, highly extroverted people are sociable, outgoing, and easily connect with others. In contrast,...
Natural Selection and Adaptation
Natural selection, a fundamental concept in evolutionary biology, is the mechanism by which evolution is driven, favoring organisms that are best adapted to their environments. This process enhances their chances of survival and reproduction. Adaptation, a key outcome of this process, involves genetic modifications that optimize an organism's functionality under specific environmental challenges, such as extreme cold or thinner air at high altitudes.
Beyond physical adaptations, psychological...
Beyond physical adaptations, psychological...
Heritability
Heritability is a statistical concept that measures the degree to which genetic differences among individuals contribute to trait variations within a population. It is a fundamental idea in genetics, often prone to misinterpretation. Heritability is expressed as a percentage, reflecting the proportion of variation in a specific trait across a population that can be linked to genetic differences. However, it's important to understand that heritability does not determine how "genetic" a trait is,...
Trait Centrality
Trait centrality refers to the degree to which a particular characteristic influences the overall impression of an individual. Some traits exert a disproportionately strong impact on perception, shaping how people interpret other attributes of a person. Solomon Asch first systematically studied this phenomenon in 1946.Asch’s Experiment on Trait CentralityAsch's seminal study demonstrated the centrality of certain traits through a controlled experiment. Participants were presented with a list of...

