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Related Experiment Video

Updated: Jan 11, 2026

Divergence of Root Microbiota in Different Habitats based on Weighted Correlation Networks

Divergence of Root Microbiota in Different Habitats based on Weighted Correlation Networks

Published on: September 25, 2021

Differential Assembly of Core and Non-Core Host-Microbe Network Structures Along a Land-Use Change Gradient.

Matan Markfeld¹, Georgia Titcomb², Toky Maheriniaina Randriamoria³

¹Department of Life Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel.

Ecology Letters

|November 14, 2025

Summary

This summary is machine-generated.

Microbiome assembly differs between core and non-core microbes. Core microbes are shaped by ecological drift, while non-core microbes respond to environmental filtering, impacting host health.

Keywords:

community assembly host‐microbe network land‐use change madagascar microbial ecology microbiome modularity rat

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Last Updated: Jan 11, 2026

Divergence of Root Microbiota in Different Habitats based on Weighted Correlation Networks

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Published on: September 25, 2021

Investigation of Plant Interactions Across Common Mycorrhizal Networks Using Rotated Cores

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Published on: March 26, 2019

Monitoring Spatial Segregation in Surface Colonizing Microbial Populations

Monitoring Spatial Segregation in Surface Colonizing Microbial Populations

Published on: October 29, 2016

Area of Science:

Ecology
Microbiology
Host-Microbe Interactions

Background:

Host-associated microbial communities are crucial for host health.
Understanding how these communities assemble under environmental change is essential.
The dynamics of microbial community assembly in response to environmental shifts are not well understood.

Purpose of the Study:

To investigate the assembly dynamics of microbial communities in wild black rats (Rattus rattus) across a land-use gradient.
To differentiate between core and non-core microbes and identify the drivers shaping their respective network structures.
To assess the impact of land-use change on microbial community assembly.

Main Methods:

Analysis of individual-level host-microbe networks in Rattus rattus.
Application of a moving prevalence threshold to distinguish core and non-core microbes.
Comparison of network structures and assembly drivers across a land-use gradient.

Main Results:

Non-core microbes formed modular networks influenced by environmental filtering (heterogeneous selection).
Core microbes exhibited stable, less modular networks primarily driven by stochastic ecological drift.
Land-use change significantly altered non-core microbial network structure but had minimal impact on core microbes.

Conclusions:

Core and non-core microbial communities assemble via distinct ecological processes.
Microbial groups show differential sensitivity to environmental variation and land-use change.
This study provides a framework for understanding microbiome assembly under anthropogenic pressures.