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Related Concept Videos

Ecological Niches02:02

Ecological Niches

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.
Circuit Terminology01:14

Circuit Terminology

An electrical network is a system composed of interconnected elements, such as resistors, capacitors, inductors, and voltage or current sources. Unlike a circuit, an electrical network does not necessarily form a closed path. In other words, while all circuits can be considered networks due to their interconnected nature, not every network qualifies as a circuit.
A circuit, on the other hand, is also an interconnected system of electrical elements but must contain one or more closed paths.
Protein Networks02:26

Protein Networks

An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions.
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
Protein Networks02:26

Protein Networks

An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions.
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
Ecological Disturbance02:26

Ecological Disturbance

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.
Symbiosis00:58

Symbiosis

Symbiotic relationships are long-term, close interactions between individuals of different species that affect the distribution and abundance of those species. When a relationship is beneficial to both species, this is called mutualism. When the relationship is beneficial to one species but neither beneficial nor harmful to the other species, this is called commensalism. When one organism is harmed to benefit another, the relationship is known as parasitism. These types of relationships often...

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Related Experiment Video

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Inherent Dynamics Visualizer, an Interactive Application for Evaluating and Visualizing Outputs from a Gene Regulatory Network Inference Pipeline
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Published on: December 7, 2021

Linking topological structure and dynamics in ecological networks.

Julio M Alcántara1, Pedro J Rey

  • 1Departamento Biología Animal, Biología Vegetal y Ecología, Universidad de Jaén, Spain. jmalcan@ujaen.es

The American Naturalist
|July 7, 2012
PubMed
Summary
This summary is machine-generated.

Ecological interaction networks show high persistence and robustness. Their low modularity, with a large interconnected group and small single-species groups, enhances stability, suggesting compartmentalization decreases robustness.

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Area of Science:

  • Ecology
  • Network Theory
  • Community Dynamics

Background:

  • Interaction networks are fundamental to understanding ecological communities and their dynamics.
  • The link between network structure and community dynamical properties like stability remains poorly understood.

Purpose of the Study:

  • To develop a framework for analyzing ecological network structure and its relation to community stability.
  • To investigate the persistence and robustness of empirical food webs and plant-plant interaction networks.

Main Methods:

  • Utilized a framework based on strongly connected components to analyze network structure.
  • Applied the framework to qualitative empirical food webs and plant-plant interaction networks.
  • Examined the relationship between network modularity and stability properties.

Main Results:

  • Empirical food webs and plant-plant networks exhibit high species persistence (99% and 80%) and robustness (0.2% and 2% species loss).
  • Networks are characterized by a large interconnected group and smaller, often single-species, groups, indicating low modularity.
  • A negative relationship was observed between modularity and stability.

Conclusions:

  • Ecological communities are generally not structured into distinct multispecies compartments.
  • Low modularity in interaction networks is associated with increased community persistence and robustness.
  • Compartmentalization within ecological networks can decrease overall robustness.