Index:- The independent and interactive roles of functional and phylogenetic diversity on leaf litter breakdown in streams. Christopher Swan.- Plant functional diversity and leaf-litter processing in Mediterranean streams. Silvia Monroy.- Litter species richness do not affect decomposition irrespective of the environmental context where they decompose. Anderson Gripp.- Interactions among large and small animals influence how biodiversity impacts litter decomposition. Alan Tonin.- Timing and intensity of the response of Echinogammarus berilloni to stoichiometric resource imbalance. Libe Solagaistua.- Effects of intraspecific variations in aquatic invertebrates on litter decomposition. Thibaut Rota.- Litter decomposition in streams: a 30-yr retrospective with a focus on B-EF relationships and grounds for future applications. Eric Chauvet.- Agricultural constraints on microbial resource use and niche breadth in drainage ditches. Ellard Hunting.- Leaf litter decomposition in mixtures: the effect of component litter species on decomposition rates and associated fungi. Meritxell Abril.- A synthesis of studies of wood dynamics in streams at Coweeta Hydrologic Laboratory. Jack Webster.- Plant diversity loss affects multiple functions of stream ecosystems. Naiara López-Rojo.- Stream restoration effects on detritivore functional characteristics and litter decomposition. André Frainer.- Leaf processing - where does the carbon go to? Timothy Moulton.- A comparison of organic-matter decomposition in natural and restored vernal pools. Pauline Hervé.- Does a litter-decomposition-based indicator improve the ecological assessment of rivers? Magali Brosed.- Comparison of two methods of organic-matter breakdown along a gradient of stream pollution. Tadeusz Fleituch.- Oxygen diffusivity through leaf litter as proxy of structural changes of the cuticle during initial leaf processing in aquatic systems. Ute Risse-Buhl.- Statistical analysis of decomposition curves. Timothy Moulton.- Stream functioning under forest change: still heterotrophic but not the same. Verónica Ferreira.- Composition of riparian litter input regulates organic matter decomposition. Micael Jonsson.- Plant diversity loss slows down decomposition regardless of litter quality. Aingeru Martínez.- Constraints on the metabolic activity of aquatic invertebrates: effects of temperature and plane leaf litter. Lorea Flores.- Stream decomposition patterns of senescent leaves with a permanence period on land. Manuela Abelho.- Habitat patch connectivity and the effects of drought on leaf decomposition and the diversity of decomposers in a stream channel experiment. Brendan McKie.- Eucalyptus reforestation: in search of the lesser of four evils. Sara Simões.- Alder processing dynamics in an oligotrophic coastal stream: the interplay between temperature, flow and shredders. Isabel Pardo.- Impacts of an invasive omnivore crayfish on leaf litter decomposition. Cláudia Pascoal.- Compensatory feeding strategies in shredders: a way to cope with climate change? Encarnación Fenoy.- Effects of water abstraction on organic matter processing in freshwaters. Maite Arroita.- Spatial heterogeneity in water velocity drives leaf litter distribution and processing in streams. Elliot Bastias.- Are fungicides a threat for the functioning of heterotrophic systems? Mirco Bundschuh.- Aquatic hyphomycetes: one for all and all for one in salt-contaminated streams. Cristina Canhoto.- Sensitivity of laccase activity to the fungicide tebuconazole in decomposing litter. Joan Artigas.- Co-tolerance of microbial litter decomposers to silver nanoparticles and antibiotics. Ahmed Tlili.- Low-level salt additions alter detritivore performance in microcosm experiments. Sally Entrekin.- Salinization and desiccation... the lower and slower the better for decomposers. Ana Lúcia Gonçalves.- Effects of flow intermittency on aquatic hyphomycetes assemblages in leaf litter, decomposition rates and feeding preferences of invertebrate consumers: a microcosm experiment. Rebeca Arias.- Heterotrophic microbial communities adapt to multiple stress - the importance of disturbance history. Alexander Feckler.- Comparative effects of metallic nanoparticles on microbes and invertebrates involved in plant litter decomposition in streams. Fernanda Cássio.- Litter breakdown as a tool for managers. Daniel von Schiller.- Drivers and effects of organic-matter processing in freshwaters. Scott Tiegs.- Soil and water nutrient enrichment affect aquatic microbial litter decomposition. Manuel Graça.- The ef