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Updated: Jun 24, 2026

The HoneyComb Paradigm for Research on Collective Human Behavior
06:48

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Published on: January 19, 2019

An integrative framework for stochastic, size-structured community assembly.

J P O'Dwyer1, J K Lake, A Ostling

  • 1Center for Ecology and Evolutionary Biology, University of Oregon, Eugene, OR 97403-5289, USA. jodwyer@uoregon.edu

Proceedings of the National Academy of Sciences of the United States of America
|April 2, 2009
PubMed
Summary
This summary is machine-generated.

This study introduces a new ecological model for community assembly, showing that species abundance distributions (SADs) don't reflect size-dependent processes, unlike species biomass distributions (SBDs).

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Origami Inspired Self-assembly of Patterned and Reconfigurable Particles
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Last Updated: Jun 24, 2026

The HoneyComb Paradigm for Research on Collective Human Behavior
06:48

The HoneyComb Paradigm for Research on Collective Human Behavior

Published on: January 19, 2019

Origami Inspired Self-assembly of Patterned and Reconfigurable Particles
12:33

Origami Inspired Self-assembly of Patterned and Reconfigurable Particles

Published on: February 4, 2013

Area of Science:

  • Ecology
  • Theoretical Ecology
  • Biodiversity Science

Background:

  • Neutral Biodiversity Theory (NBT) provides a null model for biodiversity but often lacks biological realism.
  • Incorporating individual variation, such as size structure and growth, is crucial for understanding ecological communities.

Purpose of the Study:

  • To develop a theoretical framework for stochastic, size-structured community assembly.
  • To investigate how size variation influences ecological predictions, particularly species abundance distributions (SADs) and species biomass distributions (SBDs).

Main Methods:

  • Developed a mathematical model integrating size structure and growth dynamics into community assembly.
  • Analyzed the sensitivity of SAD and SBD to variations in size-dependent demographic rates.
  • Derived predictions for both SAD and SBD based on the new framework.

Main Results:

  • The species abundance distribution (SAD) was found to be insensitive to the details of size structure.
  • The species biomass distribution (SBD) was shown to be dependent on the underlying size structure.
  • Demonstrated that SAD is a poor indicator of size-dependent ecological processes.

Conclusions:

  • The species biomass distribution (SBD) is a more sensitive indicator of size-dependent ecological processes than the species abundance distribution (SAD).
  • The developed framework offers a method for testing ecological predictions related to community structure and size-dependency.
  • The model provides a foundation for extending ecological predictions to more complex community structures.