Pulse Brain · Growing Health Evidence Index
Tier 3 — Observational / field trialPeer-reviewedConventional

Microbial diversity declines in warmed tropical soil and respiration rise exceed predictions as communities adapt

Andrew T. Nottingham, Jarrod J. Scott, Kristin Saltonstall, Kirk Broders, Maria Montero‐Sanchez, Johann Püspök, Erland Bååth, Patrick Meir

Nature Microbiology · 2022

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Summary

This experimental study examined how soil microbial communities in tropical forests respond to warming, revealing that warming induces rapid declines in microbial biodiversity whilst simultaneously triggering respiratory carbon losses substantially greater than current predictive models forecast. The authors suggest that abiotic acceleration of enzymatic activity may explain the discrepancy, with implications for climate feedback loops in tropical ecosystems.

Regional applicability

Direct applicability to UK soil systems is limited given the tropical focus; however, the findings underscore the need for improved mechanistic understanding of temperature-microbial responses across biomes and may inform UK climate modelling assumptions for tropical forest carbon cycling.

Key measures

Soil microbial diversity (community composition), soil respiration rates, enzymatic activity, comparison of measured versus predicted emissions under warming conditions

Outcomes reported

The study measured changes in soil microbial community diversity and respiration rates in warmed tropical soil, finding that microbial diversity declined whilst respiratory emissions exceeded model predictions by threefold.

Theme
Climate & resilience
Subject
Soil biology & microbiology
Study type
Research
Study design
Field trial
Source type
Peer-reviewed study
Status
Published
Geography
Tropical
System type
Laboratory / in vitro
DOI
10.1038/s41564-022-01200-1
Catalogue ID
SNmojqlyv2-6wbyng

Topic tags

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