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How does litter quality affect the community of soil protists (testate amoebae) of tropical montane rainforests.
MedLine Citation:
PMID:  22324854     Owner:  NLM     Status:  Publisher    
Litter quality and diversity are major factors structuring decomposer communities. However, little is known on the relationship between litter quality and the community structure of soil protists in tropical forests. We analyzed the diversity, density and community structure of a major group of soil protists of tropical montane rainforests, i.e. testate amoebae. Litterbags containing pure and mixed litter of two abundant tree species at the study sites (Graffenrieda emarginata and Purdiaea nutans) differing in nitrogen concentrations were exposed in the field for 12 months. The density and diversity of testate amoebae were higher in the nitrogen rich Graffenrieda litter suggesting that nitrogen functions as an important driving factor for soil protist communities. No additive effects of litter mixing were found, rather, density of testate amoebae was reduced in litter mixtures as compared to litterbags with Graffenrieda litter only. However, adding of high quality litter to low quality litter markedly improved habitat quality, as evaluated by the increase in diversity and density of testate amoebae. The results suggest that local factors, such as litter quality, function as major forces shaping the structure and density of decomposer microfauna which likely feeds back to decomposition processes.
Valentyna Krashevska; Mark Maraun; Stefan Scheu
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-2-10
Journal Detail:
Title:  FEMS microbiology ecology     Volume:  -     ISSN:  1574-6941     ISO Abbreviation:  -     Publication Date:  2012 Feb 
Date Detail:
Created Date:  2012-2-13     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8901229     Medline TA:  FEMS Microbiol Ecol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2012 Federation of European Microbiological Societies. Published by Blackwell Publishing Ltd. All rights reserved.
J.F. Blumenbach Institute of Zoology and Anthropology, Animal Ecology, Georg August University Göttingen, Berliner Str. 28, 37073, Göttingen, Germany.
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