Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Impacts of Soil Faunal Community Composition on Model Grassland Ecosystems.
AU - Bradford, M. A.
AU - Jones, T. H.
AU - Bardgett, Richard D.
AU - Black, Helaina I. J.
AU - Boag, B.
AU - Bonkowski, M.
AU - Cook, R.
AU - Eggers, T.
AU - Gange, A. C.
AU - Grayston, S. J.
AU - Kandeler, E.
AU - McCaig, A. E.
AU - Newington, J. E.
AU - Prosser, J. I.
AU - Setälä, H.
AU - Staddon, P. L.
AU - Tordoff, G. M.
AU - Tscherko, D.
AU - Lawton, J. H.
PY - 2002/10/18
Y1 - 2002/10/18
N2 - Human impacts, including global change, may alter the composition of soil faunal communities, but consequences for ecosystem functioning are poorly understood. We constructed model grassland systems in the Ecotron controlled environment facility and manipulated soil community composition through assemblages of different animal body sizes. Plant community composition, microbial and root biomass, decomposition rate, and mycorrhizal colonization were all markedly affected. However, two key ecosystem processes, aboveground net primary productivity and net ecosystem productivity, were surprisingly resistant to these changes. We hypothesize that positive and negative faunal-mediated effects in soil communities cancel each other out, causing no net ecosystem effects.
AB - Human impacts, including global change, may alter the composition of soil faunal communities, but consequences for ecosystem functioning are poorly understood. We constructed model grassland systems in the Ecotron controlled environment facility and manipulated soil community composition through assemblages of different animal body sizes. Plant community composition, microbial and root biomass, decomposition rate, and mycorrhizal colonization were all markedly affected. However, two key ecosystem processes, aboveground net primary productivity and net ecosystem productivity, were surprisingly resistant to these changes. We hypothesize that positive and negative faunal-mediated effects in soil communities cancel each other out, causing no net ecosystem effects.
U2 - 10.1126/science.1075805
DO - 10.1126/science.1075805
M3 - Journal article
VL - 298
SP - 615
EP - 618
JO - Science
JF - Science
SN - 0036-8075
IS - 5593
ER -