Cited by 433Soil Carbon and Nitrogen DynamicsEnvironmental and biological studiesMycorrhizal Fungi and Plant Interactions

Microbiota, fauna, and mesh size interactions in litter decomposition

Bradford, Mark A., Tordoff, George M., Eggers, Till, Jones, T. Hefin, Newington, John E.·2002·Oikos

Abstract

Plant litter decomposition is a key process in carbon and nutrient cycling. The critical role of soil‐faunal community composition in decomposition has been demonstrated using different mesh size litterbags to control exposure of litter to different faunal size classes. However, the faunal community surrounding the litterbags has not been manipulated despite potentially large indirect effects of their activity on biotic and abiotic processes that control litter decomposition at the habitat‐scale. We combined microcosm and litterbag techniques to facilitate a more comprehensive understanding of the role of direct and indirect effects of soil‐faunal community composition on litter decomposition. We placed litterbags of three mesh sizes across model grassland miniecosystems manipulated to enable communities containing 1) microfauna; 2) micro‐ and meso‐fauna; 3) micro‐, meso‐ and macro‐fauna. All communities contained bacteria and fungi. The approach permitted correction of mesh size artefacts inherent to field studies. Indirect effects have been divided into two separate terms, direct‐indirect effects and indirect effects. Decomposition in micromesh litterbags was significantly decreased by the indirect effects of meso‐ and macro‐fauna. In macrofauna communities, increased mesh size significantly increased decomposition through mesh size per se and faunal effects. Relative effects of manipulated faunal community composition on litter mass loss and C:N ratio were equivalent for green and senesced litter. The presence of meso‐ and macro‐fauna increased litter decomposition rate overall despite inhibiting decomposition by microfauna, bacteria and fungi through indirect effects.

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Crossref · 10.1034/j.1600-0706.2002.990212.x

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  • The 2-mm mesh litterbags assess decomposition resulting from combined action of microorganisms, microfauna and mesofauna, while 0.16-mm mesh only accounts for decomposition due to microorganisms and microfauna.

    “The 2-mm mesh bags assess decomposition resulting from the combined action of microorganisms, microfauna and mesofauna, while the 0.16-mm mesh only accounts for the decomposition due to microorganisms and microfauna (Bradford et al. 2002).”

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Authors
Bradford, M. A., Tordoff, G. M., Eggers, T., Jones, T. H., & Newington, J. E.
Affiliations
Imperial College London (GB)
Corresponding author
Jones, T. Hefin
Venue
Oikos
Publisher
Wiley
Published
2002-11
Volume
99
Issue
2
Pages
317-323
ISSN
  • 0030-1299 (ISSN-L)
  • 1600-0706
OpenAlex
W1967371813
Cited by
433
References
30
Citations by year
2026: 15 · 2025: 20 · 2024: 27 · 2023: 19 · 2022: 17 · 2021: 35 · 2020: 36 · 2019: 24 · 2018: 22 · 2017: 23 · 2016: 19 · 2015: 15 · 2014: 15 · 2013: 19 · 2012: 20
FWCI
10.53
Type
journal article
Language
en
Open access
closed
Locations
Oikos (publishedVersion)
Funders
Natural Environment Research Council
Topics
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Carbon and Nitrogen Dynamics
  • Physical Sciences › Environmental Science › Ecology › Environmental and biological studies
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Mycorrhizal Fungi and Plant Interactions
Keywords
plant litter decomposition, soil fauna, mesh size, indirect effects, microfauna, mesofauna, macrofauna, soil microbial communities, carbon cycle, nutrient cycling, litter mass loss, C/N ratio, direct and indirect effects

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