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Research Article, Hernandez, D. J., David, A. S., Menges, E. S., Searcy, C…
Research Article
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Environmental Stressors
The duration of stress exposure leads to reduced microbial populations and weakened microbial connections
The stress environment selects only a limited number of tolerant microbial species through its “selection pressure"
These elements decrease microbial diversity while changing the number of available ecological niches
Why it matters - The microbiome becomes less capable of supporting host or ecosystem health because of reduced diversity and connectivity
The research examined four different stress factors which are drought and temperature changes and pollution and nutrient deficiencies
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Mechanistic Implications
The breakdown of communication between microbes results in unstable immune protection systems that depend on microbial activity (especially in host-associated systems)
Environmental stress makes animals more vulnerable to infections because their microbiome becomes less stable
The reduction of keystone taxa species makes it impossible for microbes to properly control dangerous microbial populations
Why it matters - The study shows that environmental stress factors like temperature and pollution create animal and ecosystem health problems through microbial community disruptions
Stress disrupts the normal communication patterns between microorganisms and their cooperative behaviors
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Hernandez, D. J., David, A. S., Menges, E. S., Searcy, C. A., & Afkhami, M. E. (2021). Environmental stress destabilizes microbial networks. The ISME journal, 15(6), 1722–1734. https://doi.org/10.1038/s41396-020-00882-x