期刊
MICROBIAL ECOLOGY
卷 63, 期 4, 页码 905-918出版社
SPRINGER
DOI: 10.1007/s00248-011-9956-y
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资金
- UK Biotechnology and Biological Sciences Research Council
- Biotechnology and Biological Sciences Research Council [BBS/E/C/00005740, BBS/E/C/00005741] Funding Source: researchfish
- BBSRC [BBS/E/C/00005741, BBS/E/C/00005740] Funding Source: UKRI
Protozoa are one of the most abundant groups of bacterivores within the soil and are responsible for mineralisation of bacterial biomass, having a large impact on C and N cycling. Little is known of their contribution to soil nutrient transfers or the identity of their consumers. Here, for the first time indigenous flagellates and ciliates, enriched to 83 atom% for C-13 and 10 atom% for N-15, were introduced to soil cores from two different land managements, grassland and woodland with the same soil type, to trace the flow of protozoan C and N through the soil food web. Nematodes, Collembola, earthworms and insect larvae obtained the greatest amounts of C and N of protozoan origin, either through direct consumption or uptake of biomass post-cell death. Our results show that changes in management, affect the functioning of the soil food web and the utilisation of protozoa as a food source.
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