Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Competition02:34

Competition

21.7K
When organisms require the same limited resources within an environment, they may have to compete for them. Competition is a net-negative interaction. Even if two competing individuals or populations do not interact directly, the overall fitness of both competitors is lowered as a result of not having full access to the limited resource.
21.7K
Ecological Niches02:02

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
Gene Regulation in Microbial Communities: Quorum Sensing01:28

Gene Regulation in Microbial Communities: Quorum Sensing

39
Quorum sensing is a mechanism of bacterial communication that enables coordinated gene expression in response to changes in population density. This facilitates collective behaviors that enhance survival, resource acquisition, and ecological adaptation. This process relies on small signaling molecules called autoinducers that accumulate as bacterial populations grow. When a critical threshold concentration of autoinducers is reached, bacterial cells collectively modify gene expression,...
39
Microbial Morphologies01:29

Microbial Morphologies

47
Bacterial and archaeal cells exhibit remarkable diversity in shape and structure, critical in their adaptability and functionality. Among bacteria, the most commonly observed shapes include cocci and bacilli. Cocci are spherical and may exist singly or in groupings such as pairs (diplococci), chains (streptococci), clusters (staphylococci), or tetrads. Bacilli, in contrast, are rod-shaped and can also occur as single cells, in pairs, or chains, depending on their environmental and genetic...
47
Operon Model01:23

Operon Model

35
The operon model represents a fundamental mechanism of gene regulation in prokaryotes, enabling coordinated expression of genes involved in related metabolic or functional pathways. Operons consist of structural genes, a promoter, and an operator, with transcription regulated by repressors, activators, and small effector molecules.Structure and Function of OperonsAn operon is a cluster of structural genes transcribed together under the control of a single promoter. The promoter region...
35
What are Populations and Communities?00:30

What are Populations and Communities?

34.0K
Overview
34.0K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Repulsion from slow-diffusing nutrients improves microbial chemotaxis towards moving sources.

Nature communications·2026
Same author

Structured interactions explain the absence of keystone species in synthetic microcosms.

The ISME journal·2025
Same author

Collective dynamical regimes predict invasion success and impacts in microbial communities.

Nature ecology & evolution·2025
Same author

Ecosystem stability relies on diversity difference between trophic levels.

Proceedings of the National Academy of Sciences of the United States of America·2024
Same author

Cooperative growth in microbial communities is a driver of multistability.

Nature communications·2024
Same author

Biodiversity is enhanced by sequential resource utilization and environmental fluctuations via emergent temporal niches.

PLoS computational biology·2024
Same journal

Costunolide ameliorates autoimmune uveitis by targeting USP15 to suppress TNF-α-induced retinal endothelial inflammation.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same journal

A ligandable PNT domain establishes ERG as a directly targetable oncogenic driver in prostate cancer.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same journal

Identification of cellular intermediates unveils unique enzymes for flagellar glycan biosynthesis in <i>Clostridioides difficile</i>.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same journal

The structure of correlated variability reflects task-relevant information in sensory neurons.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same journal

Shared neurogenetic substrates of nonplanning impulsivity and procrastination.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same journal

HIV-1 capsid interactions with Nuclear Pore Complex components support nuclear entry via affinity gradient.

Proceedings of the National Academy of Sciences of the United States of America·2026
See all related articles

Related Experiment Video

Updated: Jul 18, 2025

Assembly and Tracking of Microbial Community Development within a Microwell Array Platform
09:24

Assembly and Tracking of Microbial Community Development within a Microwell Array Platform

Published on: June 6, 2017

9.0K

Resource competition can explain simplicity in microbial community assembly.

Hyunseok Lee1, Blox Bloxham1, Jeff Gore1

  • 1Physics of Living Systems, Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139.

Proceedings of the National Academy of Sciences of the United States of America
|August 21, 2023
PubMed
Summary
This summary is machine-generated.

Community assembly predictions are simplified: pairwise competition outcomes accurately predict multispecies community composition, even with complex resource dynamics and cross-feeding interactions.

Keywords:
assembly rulecommunity assemblycross-feedingmicrobial ecologyresource model

More Related Videos

Assembly and Quantification of Co-Cultures Combining Heterotrophic Yeast with Phototrophic Sugar-Secreting Cyanobacteria
05:44

Assembly and Quantification of Co-Cultures Combining Heterotrophic Yeast with Phototrophic Sugar-Secreting Cyanobacteria

Published on: December 27, 2024

868
Exploring the Root Microbiome: Extracting Bacterial Community Data from the Soil, Rhizosphere, and Root Endosphere
09:55

Exploring the Root Microbiome: Extracting Bacterial Community Data from the Soil, Rhizosphere, and Root Endosphere

Published on: May 2, 2018

26.9K

Related Experiment Videos

Last Updated: Jul 18, 2025

Assembly and Tracking of Microbial Community Development within a Microwell Array Platform
09:24

Assembly and Tracking of Microbial Community Development within a Microwell Array Platform

Published on: June 6, 2017

9.0K
Assembly and Quantification of Co-Cultures Combining Heterotrophic Yeast with Phototrophic Sugar-Secreting Cyanobacteria
05:44

Assembly and Quantification of Co-Cultures Combining Heterotrophic Yeast with Phototrophic Sugar-Secreting Cyanobacteria

Published on: December 27, 2024

868
Exploring the Root Microbiome: Extracting Bacterial Community Data from the Soil, Rhizosphere, and Root Endosphere
09:55

Exploring the Root Microbiome: Extracting Bacterial Community Data from the Soil, Rhizosphere, and Root Endosphere

Published on: May 2, 2018

26.9K

Area of Science:

  • Ecology
  • Theoretical Ecology
  • Mathematical Biology

Background:

  • Predicting community composition and diversity is a key ecological challenge.
  • Laboratory microcosms often exhibit simple community assembly rules based on pairwise competition outcomes.
  • The mechanistic basis for this predictive power of pairwise competition has been unclear.

Purpose of the Study:

  • To elucidate the mechanistic origin of simple community assembly patterns from resource competition.
  • To determine the conditions under which pairwise competition accurately predicts multispecies community assembly.
  • To investigate the impact of cross-feeding on assembly rule predictability.

Main Methods:

  • Geometric analysis of a consumer-resource model.
  • Identification of all possible trio community assembly outcomes under three resources.
  • Simulations of community assembly with varying numbers of resources and species.
  • Quantitative prediction of community composition using harmonic mean of pairwise fractions.

Main Results:

  • Trio community assembly is predictable from pairwise outcomes when one species has a growth advantage on every resource.
  • Only two out of all possible trio assembly outcomes violate the assembly rule.
  • Pairwise competition accurately predicts assembly for communities up to twelve species and 100 resources.
  • Cross-feeding interactions do not reduce the accuracy of assembly rule predictions.

Conclusions:

  • Simple community assembly patterns can emerge from underlying resource competition dynamics.
  • Pairwise competition provides a robust and accurate predictive framework for community assembly.
  • These findings hold even in complex ecological scenarios with multiple resources and interspecies interactions.