Impacts of soil faunal community composition on model grassland ecosystems

Science

Volumn 298, Issue 5593, 2002, Pages 615-618

  Bradford, M A ^a   Jones, T H ^a   Bardgett, R D ^a   Black, H I J ^a   Boag, B ^a   Bonkowski, M ^a   Cook, R ^a   Eggers, T ^a   Gange, A C ^a   Grayston, S J ^a   Kandeler, E ^a   McCaig, A E ^a   Newington, J E ^a   Prosser, J I ^a   Setala H ^a   Staddon, P L ^a   Tordoff, G M ^a   Tscherko, D ^a   Lawton, J H ^a  

^a IMPERIAL COLLEGE LONDON   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

BIOMASS; DECOMPOSITION; PLANTS (BOTANY); SOILS;

HUMAN IMPACTS;

ECOSYSTEMS;

FAUNA; GRASSLAND; SOIL; SOIL BIOTA; SOIL ECOSYSTEM;

ARTICLE; BIOMASS; ECOSYSTEM; FAUNA; GRASSLAND; MACROFAUNA; MODEL; MYCORRHIZA; NONHUMAN; PHOTOSYNTHESIS; PRIORITY JOURNAL; SOIL; SOIL FAUNA;

ANIMALS; BACTERIA; BIOMASS; BODY CONSTITUTION; CARBON; ECOLOGICAL SYSTEMS, CLOSED; ECOSYSTEM; ENVIRONMENT; FUNGI; OXYGEN CONSUMPTION; PHOTOSYNTHESIS; PLANT ROOTS; PLANTS; POACEAE; POPULATION DENSITY; SOIL; SOIL MICROBIOLOGY;

ANIMALIA; CELLULAR ORGANISMS;

EID: 0037131332     PISSN: 00368075     EISSN: None     Source Type: Journal    
DOI: 10.1126/science.1075805     Document Type: Article

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26. -2)]. Significant changes in biomass of other grass species were not observed.
27. We detected no marked treatment differences in bulk density or pH of organic and mineral soil horizons. Equally, we observed no significant treatment differences (P > 0.05) in moisture, temperature, total and dissolved organic soil carbon, and total and dissolved organic and mineral nitrogen of these horizons.
28. 2,135 = 9.0, p < 0-001; strips inserted on day 207) cotton degradation rates (pooled across depth and removal day) were 23 ± 1.3 (mlcrofauna), 25 ± 1.3 (mesofauna), and 27 ± 1.3 (macrofauna) [mean ± SE (cotton strips per year)].
29. 2.8 = 3.9, P = 0.065). Mean (±SE) densities in the organic horizons were 34 ± 1.2 (microfauna), 22 ± 6,7 (mesofauna), and 16 ± 3.0 (macrofauna) (mg per g of dry soil).
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34. We thank the Natural Environment Research Council for core funding to the Centre for Population Biology and funding under the Soil Biodiversity Programme; S. Catovsky and H. C. J. Godfray for constructive comments; The U.K. Environmental Change Network for Sourhope climate data; and P. Small, D. Wildman, K. Hutcheson, A. Minns, S. Rudolph, and T. Kramarewa for engineering and experimental assistance. All opinions stated are those of the authors and not necessarily those of their affiliation.