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Larger phylogenetic distances in litter mixtures: lower microbial biomass and higher C/N ratios but equal mass loss
X. Pan, MP. Berg, O. Butenschoen, PJ. Murray, IV. Bartish, JH. Cornelissen, M. Dong, A. Prinzing,
Jazyk angličtina Země Anglie, Velká Británie
Typ dokumentu časopisecké články, práce podpořená grantem
NLK
Free Medical Journals
od 1997 do Před 1 rokem
Freely Accessible Science Journals
od 2004 do Před 1 rokem
PubMed Central
od 1997 do Před 1 rokem
Europe PubMed Central
od 1997 do Před 1 rokem
Open Access Digital Library
od 1905-04-22
Open Access Digital Library
od 1997-01-01
PubMed
25876845
DOI
10.1098/rspb.2015.0103
Knihovny.cz E-zdroje
- MeSH
- bezobratlí fyziologie MeSH
- biodegradace MeSH
- biomasa MeSH
- dusík analýza MeSH
- fylogeneze MeSH
- lesy MeSH
- listy rostlin chemie klasifikace MeSH
- Magnoliopsida klasifikace fyziologie MeSH
- mikrobiota fyziologie MeSH
- půda chemie MeSH
- půdní mikrobiologie * MeSH
- stromy klasifikace fyziologie MeSH
- uhlík analýza MeSH
- zvířata MeSH
- Check Tag
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Geografické názvy
- Francie MeSH
Phylogenetic distances of coexisting species differ greatly within plant communities, but their consequences for decomposers and decomposition remain unknown. We hypothesized that large phylogenetic distance of leaf litter mixtures increases differences of their litter traits, which may, in turn, result in increased resource complementarity or decreased resource concentration for decomposers and hence increased or decreased chemical transformation and reduction of litter. We conducted a litter mixture experiment including 12 common temperate tree species (evolutionarily separated by up to 106 Myr), and sampled after seven months, at which average mass loss was more than 50%. We found no effect of increased phylogenetic distance on litter mass loss or on abundance and diversity of invertebrate decomposers. However, phylogenetic distance decreased microbial biomass and increased carbon/nitrogen (C/N) ratios of litter mixtures. Consistently, four litter traits showed (marginally) significant phylogenetic signal and in three of these traits increasing trait difference decreased microbial biomass and increased C/N. We suggest that phylogenetic proximity of litter favours microbial decomposers and chemical transformation of litter owing to a resource concentration effect. This leads to a new hypothesis: closely related plant species occurring in the same niche should promote and profit from increased nutrient availability.
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- $a Pan, Xu $u Key Laboratory of Hangzhou City for Ecosystem Protection and Restoration, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 310036, People's Republic of China Centre National de la Recherche Scientifique Campus de Beaulieu, Université de Rennes 1, Bâtiment 14 A, 35042 Rennes, France State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, People's Republic of China.
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- $a Phylogenetic distances of coexisting species differ greatly within plant communities, but their consequences for decomposers and decomposition remain unknown. We hypothesized that large phylogenetic distance of leaf litter mixtures increases differences of their litter traits, which may, in turn, result in increased resource complementarity or decreased resource concentration for decomposers and hence increased or decreased chemical transformation and reduction of litter. We conducted a litter mixture experiment including 12 common temperate tree species (evolutionarily separated by up to 106 Myr), and sampled after seven months, at which average mass loss was more than 50%. We found no effect of increased phylogenetic distance on litter mass loss or on abundance and diversity of invertebrate decomposers. However, phylogenetic distance decreased microbial biomass and increased carbon/nitrogen (C/N) ratios of litter mixtures. Consistently, four litter traits showed (marginally) significant phylogenetic signal and in three of these traits increasing trait difference decreased microbial biomass and increased C/N. We suggest that phylogenetic proximity of litter favours microbial decomposers and chemical transformation of litter owing to a resource concentration effect. This leads to a new hypothesis: closely related plant species occurring in the same niche should promote and profit from increased nutrient availability.
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