Abstract
The aim of this study was to test the relative importance of changes in density and species richness of soil mesofauna as determinants of nutrient mineralisation and plant growth. The experiment was carried out using microcosms containing a mixture of plant litter and soil in which seedlings of Lolium perenne were planted, and a range of combinations of levels of density and species richness of microarthropods added. Over the duration of the experiment, nutrient release, measured as concentrations of NO3 --N and total N in leachates, increased significantly with increasing microarthropod density, but decreased with increasing species richness. Leachate concentrations of NH4 +-N, dissolved organic N and C (DON and DOC) were not affected by the faunal treatments. Soil respiration, a measure of microbial activity, decreased with increasing density of microarthropods, whereas microbial biomass was not affected by microarthropods. Increasing density of soil animals had a negative effect on the shoot biomass of L. perenne while the effect of species richness was positive. Neither the species richness nor density of soil microarthropods was found to significantly influence root biomass. We conclude that variations in animal density had a greater influence on soil nutrient mineralisation processes than did species richness. Possible reasons for these opposing effects of animal density and diversity on soil N mobilization are discussed.
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References
Anderson JM, Ineson P (1982) A soil microcosm system and its application to measurement of respiration and nutrient leaching. Soil Biol Biochem 14:415–416
Anderson JM, Ineson P, Huish SA (1982) Nitrogen and cation mobilization by soil fauna feeding on leaf litter and soil organic matter from deciduous woodlands. Soil Biol Biochem 15:463–467
Bardgett RD, Chan KF (1999) Experimental evidence that soil fauna enhance nutrient mineralization and plant nutrient uptake in montane grassland ecosystems. Soil Biol Biochem 31:1007–1014
Bardgett RD, Whittaker JB, Frankland JC (1993) The effect of collembolan grazing on fungal activity in differently managed upland pastures—a microcosm study. Biol Fertil Soils 16:255–262
Bardgett RD, Keiller S, Cook R, Gilburn AS (1998) Dynamic interactions between soil animals and microorganisms in upland grassland soils amended with sheep dung: a microcosm experiment. Soil Biol Biochem 30:531–539
Brussaard L, Noordhuis R, Geurs M, Bouwman LA (1995) Nitrogen mineralization in soil in microcosms with and without bacterivorous nematodes and nematophageous mites. Acta Zool Fenn 196:15–21
Cole L, Bardgett RD (2002) Soil animals, microbial interactions and nutrient cycling. In: Lal R (ed) Encyclopedia of soil science. Dekker, New York, pp 72–75
Cragg RG, Bardgett RD (2001) How changes in soil faunal diversity and composition within a trophic group influence decomposition processes. Soil Biol Biochem 33:2073–2081
Griffiths BS, Bardgett RD (1997) Interactions between microbe-feeding invertebrates and soil microorganisms. In: van Elsas JD, Wellington E, Trevors JT (eds) Modern soil microbiology. Dekker, New York, pp 165–182
Griffiths BS, Ritz K, Bardgett RD, Cook R, Christensen S, Ekelund F, Sørensen SJ, Bååth E, Bloem J, de Ruiter PC, Dolfing J, Nicolardot B (2000) Ecosystem response of pasture soil communities to fumigation induced microbial diversity reductions: an examination of the biodiversity-ecosystem function relationship. Oikos 90:279–294
Hanlon RDG (1981) Influence of grazing by Collembola on the activity of senescent fungal colonies grown on medium of different nutrient concentration. Oikos 36:363–367
Hedlund K, Augustsson A (1995) Effects of enchytraeid grazing on fungal growth and respiration. Soil Biol Biochem 27:905–909
Hopkin SP (1997) Biology of the springtails (Insecta: Collembola). Oxford University Press, Oxford
Hopkin S (2000) A key to the Springtails (Insecta: Collembola) of Britain and Ireland. AIDGAP Test Version, Field Studies Council, Shrewsbury
Kenny C (1998) Soil biodiversity NERC thematic programme baseline data. Macaulay Land Use Research Institute, Yetholm
Krantz GW (1978) A manual of acarology. Oregon State University Press, Corvallis, Ore.
Laakso J, Setälä H (1999) Sensitivity of primary production to changes in the architecture of belowground food webs. Oikos 87:57–64
Lawrence KL, Wise DH (2000) Spider predation on forest-floor collembola and evidence for indirect effects on decomposition. Pedobiologia 44:33–39
Liang KY, Zeger SL (1986) Longitudinal data analysis using generalized linear models. Biometrika 73:13–22
Liiri M, Setälä H, Haimi J, Pennanen T, Fritze H (2002) Soil processes are not influenced by the functional complexity of soil decomposer food webs under disturbance. Soil Biol Biochem 34:1009–1020
Mikola J, Setälä H (1998) No evidence of trophic cascades in an experimental microbial-based soil food web. Ecology 79:153–164
Mikola J, Bardgett RD, Hedlund K (2002) Biodiversity, ecosystem functioning and soil decomposer food webs. In: Loreau M, Naeem S, Inchausti P (eds) Biodiversity and ecosystem functioning: synthesis and perspectives. Oxford University Press, Oxford, pp 169–180
Nelder JA, Wedderburn RWM (1972) Generalized linear models. J R Stat Soc Ser A 135:370–384
Parker LW, Santos PF, Phillips J, Whitford WG (1984) Carbon and nitrogen dynamics during the decomposition of litter and roots of a Chiuahuan desert annual, Lepidum lasicarpum. Ecol Monogr 54:339–360
Rodwell JS (1992) Grasslands and montane communities In: Rodwell JS (ed) British plant communities 3. Cambridge University Press, Cambridge, pp 49–55
Santos PF, Phillips J, Whitford WG (1981) The role of mites and nematodes in early stages of buried litter decomposition in a desert. Ecology 62:664–669
SAS Institute (1990) SAS/STAT(R) user’s guide, version 6, 4th edn, vol. 1–2. Cary, N.C.
Scheu S, Theenhaus A, Jones TH (1999) Links between the detritivore and the herbivore system: affects of earthworms and Collembola on plant growth and aphid development. Oecologia 119:541–551
Setälä H, Huhta V (1991) Soil fauna increase Betula pendula growth: laboratory experiments with coniferous forest floor. Ecology 72:665–671
Smith IM, Lindquist EE, Behan-Pelletier V (1998) Mites (Acari). In: Smith IM, Scudder GG (eds). Assessment of species diversity in the montane cordillera ecozone. Ecological Monitoring and Assessment Network, Burlington
Sparling GP, Feltham CW, Reynolds J, West AW, Singleton P (1990) Estimation of soil microbial C by a fumigation-extraction method: use on soils of high organic matter content and a reassessment of the k EC factor. Soil Biol Biochem 22:301–307
Vance ED, Brookes PC, Jenkinson DS (1987) An extraction method for measuring soil microbial biomass C. Soil Biol Biochem 19:703–707
Acknowledgements
The authors thank Helen Quirk for technical assistance. The work was funded by the Natural Environment Research Council under the Soil Biodiversity Thematic Programme (GST 022133) awarded to R.D. Bardgett.
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Cole, L., Dromph, K.M., Boaglio, V. et al. Effect of density and species richness of soil mesofauna on nutrient mineralisation and plant growth. Biol Fertil Soils 39, 337–343 (2004). https://doi.org/10.1007/s00374-003-0702-6
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DOI: https://doi.org/10.1007/s00374-003-0702-6