LEAF LITTER COMPOSITION AND COMMUNITY STRUCTURE: TRANSLATING REGIONAL SPECIES CHANGES INTO LOCAL DYNAMICS

Ecology ◽  
2004 ◽  
Vol 85 (9) ◽  
pp. 2519-2525 ◽  
Author(s):  
Michael J. Rubbo ◽  
Joseph M. Kiesecker
Keyword(s):  
Community Structure ◽  
Leaf Litter ◽  
Local Dynamics

No tillage and bagasse mulching alter fungal biomass and community structure during decomposition of sugarcane leaf litter in Lampung Province, Sumatra, Indonesia

2013 ◽  
Vol 58 ◽  
pp. 27-35 ◽  
Author(s):  
Toshiko Miura ◽  
Ainin Niswati ◽  
I. Gede Swibawa ◽  
Sri Haryani ◽  
Heru Gunito ◽  
...  
Keyword(s):  
Community Structure ◽  
Leaf Litter ◽  
Fungal Biomass ◽  
No Tillage

scholarly journals Effects of stoichiometry and temperature perturbations on beech litter decomposition, enzyme activities and protein expression

2011 ◽  
Vol 8 (6) ◽  
pp. 11827-11861
Author(s):  
K. M. Keiblinger ◽  
T. Schneider ◽  
B. Roschitzki ◽  
E. Schmid ◽  
L. Eberl ◽  
...  
Keyword(s):  
Community Structure ◽  
Microbial Community ◽  
Leaf Litter ◽  
Litter Decomposition ◽  
Temperature Stress ◽  
Applied Stress ◽  
Microbial Community Structure ◽  
Enzyme Activities ◽  
Structure And Function ◽  
And Function

Abstract. Microbes are major players in leaf litter decomposition and therefore advances in the understanding of their control on element cycling are of paramount importance. Our aim was to investigate the influence of leaf litter stoichiometry in terms of carbon (C) : nitrogen (N) : phosphorus (P) on the decomposition process, and to follow changes in microbial community structure and function in response to temperature-stress treatments. To elucidate how the stoichiometry of beech litter (Fagus sylvatica L.) and stress treatments interactively affect the decomposition processes, a terrestrial microcosm experiment was conducted. Beech litter from different Austrian sites covering C:N ratios from 39 to 61 and C:P ratios from 666 to 1729 were incubated at 15 °C and 60% moisture for six months. Part of the microcosms were then subjected to severe changes in temperature (+30 °C and −15 °C) to monitor the influence of temperature stress. Extracellular enzyme activities were assayed and respiratory activities measured. A semi-quantitative metaproteomics approach (1D-SDS PAGE combined with liquid chromatography and tandem mass-spectrometry; unique spectral counting) was employed to investigate the impact of the applied stress treatments in dependency of litter stoichiometry on structure and function of the decomposing community. In litter with narrow C:nutrient ratios microbial decomposers were most abundant. Cellulase, chitinase, phosphatase and protease activity decreased after heat and frost treatments. Decomposer communities and specific functions varied with site i.e. stoichiometry. The applied stress evoked strong changes of enzyme activities, dissolved organic nitrogen and litter pH. Freeze treatments resulted in a decline in residual plant litter material, and increased fungal abundance indicating slightly accelerated decomposition. Overall, we could detect a strong effect of litter stoichiometry on microbial community structure as well as function. Temperature perturbations resulted in short- to medium-term alterations of microbial function, especially heat blocked decomposing enzymes.

Leaf litter traits drive community structure and functioning in a natural aquatic microcosm

2018 ◽  
Vol 63 (4) ◽  
pp. 341-352 ◽  
Author(s):  
Gustavo H. Migliorini ◽  
Diane S. Srivastava ◽  
Gustavo Q. Romero
Keyword(s):  
Community Structure ◽  
Leaf Litter ◽  
Litter Traits ◽  
Aquatic Microcosm
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