Journal
ECOLOGY LETTERS
Volume 8, Issue 6, Pages 618-625Publisher
BLACKWELL PUBLISHING
DOI: 10.1111/j.1461-0248.2005.00757.x
Keywords
competition; decomposition; detrital communities; facilitation; functional redundancy; niche differentiation; respiration; soil fungi; synthetic communities
Categories
Ask authors/readers for more resources
We manipulated the number of saprotrophic fungi in either a complex multi-resource substratum (sterilized forest soil), or a single-resource substratum (powdered cellulose). The substrates were inoculated with five common species of soil fungi in all possible combinations (from monocultures to five species in combination). In both substrates, the rate of organic matter decomposition was positively associated with species richness. The effect of fungal diversity was much stronger in the uniform single-resource substrate (r(2) = 0.455, P < 0.0001) than in soil (r(2) = 0.154, P < 0.0001). The results document that species richness of microbial decomposers strongly affects decomposition processes, at least at the species poor end of the diversity gradient. Both, 'sampling effect' and 'species complementarity effect' contributed to the community response with the latter being much more pronounced in uniform substrate than in soil. This indicates that facilitative interactions are more important than resource partitioning for positive effects of species richness.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available