Dataset.

Data from: Effects of mixing litter on decomposition under three exposure scenarios

Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/361421
Digital.CSIC. Repositorio Institucional del CSIC
  • Abelho, Manuela
  • Descals, Enric
Data are values of mass loss, ergosterol content, sporulation rates, fungal richness, shredder biomass, abundance, and richness, associated with leaves decomposing in three exposure scenarios to determine the effect of mixing litter (1:1 mixture of Alnus glutinosa (L.) Gaertn. and Populus × canadensis Moench) on decomposition Exposure scenario. The litterbags were incubated in three terrestrial-aquatic exposure scenarios. 0:100 – 0 days terrestrial; 56 days aquatic (stream) 25:75 – 14 days terrestrial; followed by 42 days in the stream. 50:50 – 28 days terrestrial followed by 28 days in the stream. RME. Relative Mixture Effect: comparison of the values in the mixture with the average of the two single species. RIP. Relative Individual Performance: comparison of a species in the mixture with that species alone. n/a. There are no values because there was not enough leaf material to determine fungal colonization parameters: ergosterol (estimate of fungal biomass) and sporulation rates., [Description of the data and file structure] There are two sheets, one with the data for the Relative Mixture Effect (RME) and the other with the data for the Relative Individual Performance (RIP)., [Usage notes] Data are provided in an open access spreadsheet (ods)., [Methods] The study site and the litter decomposition study are described in detail in Abelho, M. & Descals, E. (2019). Litter movement pathways across terrestrial–aquatic ecosystem boundaries affect litter colonization and decomposition in streams. Functional Ecology, 33, 1785–1797. https://doi.org/10.1111/1365-2435.13356(opens in new window). Mean deviation between observed values in the mixture and the average of the single species was assessed with the relative mixture effect (RME). Mean deviation between the values of a species in the mixture and that single species was assessed with the relative individual performance (RIP)., The effect of mixing litter on decomposition has received considerable attention in terrestrial and aquatic (but rarely in both) ecosystems, with a striking lack of consensus in the obtained results. We studied the decomposition of a mixture of poplar and alder in three terrestrial:aquatic exposures to determine (1) if the effect of mixing litter on mass loss, associated decomposers (fungal biomass, sporulation rates, and richness) and detritivores (abundance, biomass, and richness of invertebrate shredders) differs between the stream (fully aquatic exposure) and when litter is exposed to a period of terrestrial exposure prior to immersion and (2) the effect of the mixture across exposure scenarios. The effect of the mixture was additive on mass loss and synergistic on decomposers and detritivores across exposure scenarios. Within scenarios, mass loss and decomposers showed synergistic effects only in the fully aquatic exposure, detritivores showed synergistic effects only when the period of terrestrial was shorter than the period of aquatic exposure, and when the period of terrestrial was equal to the period of aquatic exposure the effect of the mixture was additive on mass loss, decomposers, and detritivores. The species-specific effects also differed among exposure scenarios. Alder affected poplar only when there was a period of terrestrial exposure, with increased sporulation rates and fungal richness in exposure 25:75, and increased mass loss in exposure 50:50. Poplar affected alder only under fully aquatic exposure, with increased mass loss. In conclusion, the synergistic effects of the mixture changed with a period of terrestrial exposure prior to immersion. These results provide a cross-boundary perspective on the effect of mixing litter, showing a legacy effect of exposure to terrestrial decomposition on the fate of plant litter in aquatic ecosystems and highlighting the importance of assessing the effect of mixing litter on the associated biota and not only on mass loss., Peer reviewed
 
DOI: http://hdl.handle.net/10261/361421
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/361421

HANDLE: http://hdl.handle.net/10261/361421
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/361421
 
Ver en: http://hdl.handle.net/10261/361421
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/361421

Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/361421
Dataset. 2023

DATA FROM: EFFECTS OF MIXING LITTER ON DECOMPOSITION UNDER THREE EXPOSURE SCENARIOS

Digital.CSIC. Repositorio Institucional del CSIC
  • Abelho, Manuela
  • Descals, Enric
Data are values of mass loss, ergosterol content, sporulation rates, fungal richness, shredder biomass, abundance, and richness, associated with leaves decomposing in three exposure scenarios to determine the effect of mixing litter (1:1 mixture of Alnus glutinosa (L.) Gaertn. and Populus × canadensis Moench) on decomposition Exposure scenario. The litterbags were incubated in three terrestrial-aquatic exposure scenarios. 0:100 – 0 days terrestrial; 56 days aquatic (stream) 25:75 – 14 days terrestrial; followed by 42 days in the stream. 50:50 – 28 days terrestrial followed by 28 days in the stream. RME. Relative Mixture Effect: comparison of the values in the mixture with the average of the two single species. RIP. Relative Individual Performance: comparison of a species in the mixture with that species alone. n/a. There are no values because there was not enough leaf material to determine fungal colonization parameters: ergosterol (estimate of fungal biomass) and sporulation rates., [Description of the data and file structure] There are two sheets, one with the data for the Relative Mixture Effect (RME) and the other with the data for the Relative Individual Performance (RIP)., [Usage notes] Data are provided in an open access spreadsheet (ods)., [Methods] The study site and the litter decomposition study are described in detail in Abelho, M. & Descals, E. (2019). Litter movement pathways across terrestrial–aquatic ecosystem boundaries affect litter colonization and decomposition in streams. Functional Ecology, 33, 1785–1797. https://doi.org/10.1111/1365-2435.13356(opens in new window). Mean deviation between observed values in the mixture and the average of the single species was assessed with the relative mixture effect (RME). Mean deviation between the values of a species in the mixture and that single species was assessed with the relative individual performance (RIP)., The effect of mixing litter on decomposition has received considerable attention in terrestrial and aquatic (but rarely in both) ecosystems, with a striking lack of consensus in the obtained results. We studied the decomposition of a mixture of poplar and alder in three terrestrial:aquatic exposures to determine (1) if the effect of mixing litter on mass loss, associated decomposers (fungal biomass, sporulation rates, and richness) and detritivores (abundance, biomass, and richness of invertebrate shredders) differs between the stream (fully aquatic exposure) and when litter is exposed to a period of terrestrial exposure prior to immersion and (2) the effect of the mixture across exposure scenarios. The effect of the mixture was additive on mass loss and synergistic on decomposers and detritivores across exposure scenarios. Within scenarios, mass loss and decomposers showed synergistic effects only in the fully aquatic exposure, detritivores showed synergistic effects only when the period of terrestrial was shorter than the period of aquatic exposure, and when the period of terrestrial was equal to the period of aquatic exposure the effect of the mixture was additive on mass loss, decomposers, and detritivores. The species-specific effects also differed among exposure scenarios. Alder affected poplar only when there was a period of terrestrial exposure, with increased sporulation rates and fungal richness in exposure 25:75, and increased mass loss in exposure 50:50. Poplar affected alder only under fully aquatic exposure, with increased mass loss. In conclusion, the synergistic effects of the mixture changed with a period of terrestrial exposure prior to immersion. These results provide a cross-boundary perspective on the effect of mixing litter, showing a legacy effect of exposure to terrestrial decomposition on the fate of plant litter in aquatic ecosystems and highlighting the importance of assessing the effect of mixing litter on the associated biota and not only on mass loss., Peer reviewed




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