This WINSOMELOSESOMEreadme.txt file was generated on 2021-07-05 by DECOCK EVA GENERAL INFORMATION 1. Title of Dataset: Win some, lose some: mesocosm communities maintain community productivity despite lower phosphorus availability because of increased species diversity. 2. Author Information A. Principal Investigator Contact Information Name: DeCock Eva Institution: Ghent University Address: Geraardbergsesteenweg 267, 9090 Gontrode, BELGIUM Email: evae.decock@ugent.be B. Associate or Co-investigator Contact Information Name: Stephanie Schelfhout Institution: Ghent University Address: Geraardbergsesteenweg 267, 9090 Gontrode, BELGIUM Email: stephanie.schelfhout@ugent.be C. Alternate Contact Information Name: Lander Baeten Institution: Ghent University Address: Geraardbergsesteenweg 267, 9090 Gontrode, BELGIUM Email: lander.baeten@ugent.be 3. Date of data collection: June 2017 4. Geographic location of data collection: Greenhouse at Plant 96 of Instituut voor Landbouw- en Visserijonderzoek, Burg. van Gansberghelaan 96, 9820 Merelbeke, BELGIUM 5. Information about funding sources that supported the collection of the data: The experiment is a project funded by the Flemish Fund for Scientific Research (FWO, n° G050215N). ED held a fellowship granted by The Special Research Fund of Ghent University (BOF). SHARING/ACCESS INFORMATION 1. Licenses/restrictions placed on the data: NO 2. Links to publications that cite or use the data: DeCock et al. 2021 - Applied Vegetation Science: AVS-RA-02881 Win some, lose some: mesocosm communities maintain community productivity despite lower phosphorus availability because of increased species diversity DATA & FILE OVERVIEW 1. File List: dataset.csv METHODOLOGICAL INFORMATIONT 1. Description of methods used for collection/generation of data: Soil samples: After biomass harvest, the 0-5 cm mineral soil layer of each mesocosm was sampled (n=3) with a 1 cm diameter auger. Olsen phosphorus: Analysis of bioavailable phosphorus (POlsen) was done on the dried soil samples (48h, 40°C) with an extraction with sodium bicarbonate according to Olsen et al. (1954) and colorimetric measurement with the malachite green procedure of Lajtha et al. (1999). Plant biomass: In June 2017, we harvested the aboveground biomass in each mesocosm by cutting the vegetation with scissors 4 cm above soil level (corresponding with grassland management practices). The harvested biomass was sorted per species, dried for 48 h at 70°C, and weighed. 2. Methods for processing the data: Raw data 3. Environmental/experimental conditions: Mesocosms in a greenhouse. DATA-SPECIFIC INFORMATION FOR: dataset.csv 1. Number of variables: 25 2. Number of cases/rows: 100 3. Variable List: > pot_ID: number assigned to the pot > Nlev: nitrogen level as assigned at the start of the experiment. Unit: -. [0, 1, 2]. The nitrogen treatment was performed monthly from March until October and consisted of evenly spreading a 0, 90 or 270 mg NH4NO3 in a demineralized water solution per mesocosm. Level 0 coincides with an addition of 0 mg NH4NO3, level 1 with 90 mg NH4NO3 and level 2 with 270 mg NH4NO3. We aimed at simulating realistic atmospheric nitrogen deposition rates, i.e. <5, 20 or 60 kg N ha−1 y−1. Detailed description of the experimental set-up can be found in Schelfhout et al. 2021. > Plev: phosphorus level as assigned at the start of the experiment. Unit: -. [0, 1, 2, 3, 4]. The phosphorus treatment consisted of a one-time phosphorus addition at the beginning of the experiment. We mixed 0, 3, 5, 6 or 16 g NaH2PO4 in the 40 kg of soil aiming at bioavailable phosphorus concentrations of <10, 15, 20, 25 or 60 mg POlsen kg−1. Level 0 conicides with the addition of 0 g NaH2PO4, level 1 with 3 g NaH2PO4, level 2 with 5 g NaH2PO4, level 3 with 6 g NaH2PO4 and level 4 with 16 g g NaH2PO4. Detailed description of the experimental set-up can be found in Schelfhout et al. 2021. > Region: protected area where the inoculum soil was collected from. Unit: -. [TV, L, GP]. 'TV' is Turnhouts Vennengebied, a protected area in Turnhout, Belgium; 'L' is Landschap de Liereman, a protected area in Oud-Turnhout, Belgium; 'GP' is Gulke Putten, a protected area in Wingene, Belgium. A description of the donor sites in every protected area can be found in Wasof et al. (2018). Detailed description of the experimental set-up can be found in Schelfhout et al. 2021. > Biota: biota level as assigned at the start of the experiment. Unit: -. [L, M, H]. The soil biota treatment consisted of adding 4 kg of inoculum soil for the soil biota treatment with four levels: ‘No biota’ (using the same γ-irradiated soil), ‘Oligotrophic’, ‘Mesotrophic’ and ‘Eutrophic’ using freshly sampled sandy soil from oligotrophic, mesotrophic and eutrophic grasslands. 'L' coincides with the oligotrophic addition, 'M' with the mesotrophic addition and H with the eutrophic addition. 'C' which coincides with the No Biota addition was omitted in this study. A description of the donor sites in every protected area can be found in Wasof et al. (2018). Detailed description of the experimental set-up can be found in Schelfhout et al. 2021. > P_Olsen_2017: Olsen phosphorus concentration as measured in June 2017. Unit: mg POlsen kg−1. [0 - 100]. Olsen phosphorus concentration is a measurement for bio-available phosphorus in the soil. After biomass harvest, the 0-5 cm mineral soil layer of each mesocosm was sampled (n=3) with a 1 cm diameter auger. Analysis of bioavailable phosphorus (POlsen) was done on the dried soil samples (48h, 40°C) with an extraction with sodium bicarbonate according to Olsen et al. (1954) and colorimetric measurement with the malachite green procedure of Lajtha et al. (1999). > Dactylis.glomerata: Dried weight of Dactylis glomerata harvested in June 2017. Unit: gram. [0 - 1000].In June 2017, the harvested biomass was sorted per species, dried for 48 h at 70°C, and weighed. > Holcus.lanatus: Dried weight of Holcus lanatus harvested in June 2017. Unit: gram. [0 - 1000]. In June 2017, the harvested biomass was sorted per species, dried for 48 h at 70°C, and weighed. > Lolium.perenne: Dried weight of Lolium perenne harvested in June 2017. Unit: gram. [0 - 1000]. In June 2017, the harvested biomass was sorted per species, dried for 48 h at 70°C, and weighed. > Ranunculus.acris: Dried weight of Ranunculus acris harvested in June 2017. Unit: gram. [0 - 1000]. In June 2017, the harvested biomass was sorted per species, dried for 48 h at 70°C, and weighed. > Taraxacum.officinale: Dried weight of Taraxacum officinale harvested in June 2017. Unit: gram. [0 - 1000]. In June 2017, the harvested biomass was sorted per species, dried for 48 h at 70°C, and weighed. > Agrostis.stolonifera: Dried weight of Agrostis stolonifera harvested in June 2017. Unit: gram. [0 - 1000]. In June 2017, the harvested biomass was sorted per species, dried for 48 h at 70°C, and weighed. > Anthoxanthum.odoratum: Dried weight of Anthoxanthum odoratum harvested in June 2017. Unit: gram. [0 - 1000]. In June 2017, the harvested biomass was sorted per species, dried for 48 h at 70°C, and weighed. > Festuca.rubra: Dried weight of Festuca rubra harvested in June 2017. Unit: gram. [0 - 1000]. In June 2017, the harvested biomass was sorted per species, dried for 48 h at 70°C, and weighed. > Rumex.acetosa: Dried weight of Rumex acetosa harvested in June 2017. Unit: gram. [0 - 1000]. In June 2017, the harvested biomass was sorted per species, dried for 48 h at 70°C, and weighed. > Centaurea.jacea: Dried weight of Centaurea jacea harvested in June 2017. Unit: gram. [0 - 1000]. In June 2017, the harvested biomass was sorted per species, dried for 48 h at 70°C, and weighed. > Plantago.lanceolata: Dried weight of Plantago lanceolata harvested in June 2017. Unit: gram. [0 - 1000]. In June 2017, the harvested biomass was sorted per species, dried for 48 h at 70°C, and weighed. > Lychnis.floscuculi: Dried weight of Lychnis flos-cuculi harvested in June 2017. Unit: gram. [0 - 1000]. In June 2017, the harvested biomass was sorted per species, dried for 48 h at 70°C, and weighed. > Molinia.caerulea: Dried weight of Molinia caerulea harvested in June 2017. Unit: gram. [0 - 1000]. In June 2017, the harvested biomass was sorted per species, dried for 48 h at 70°C, and weighed. > Nardus.stricta: Dried weight of Nardus stricta harvested in June 2017. Unit: gram. [0 - 1000]. In June 2017, the harvested biomass was sorted per species, dried for 48 h at 70°C, and weighed. > Luzula.multiflora: Dried weight of Luzula multiflora harvested in June 2017. Unit: gram. [0 - 1000]. In June 2017, the harvested biomass was sorted per species, dried for 48 h at 70°C, and weighed. > Carex.echinata: Dried weight of Carex echinata harvested in June 2017. Unit: gram. [0 - 1000]. In June 2017, the harvested biomass was sorted per species, dried for 48 h at 70°C, and weighed. > Succisa.pratensis: Dried weight of Succisa pratensis harvested in June 2017. Unit: gram. [0 - 1000]. In June 2017, the harvested biomass was sorted per species, dried for 48 h at 70°C, and weighed. > Potentilla.erecta: Dried weight of Potentilla erecta harvested in June 2017. Unit: gram. [0 - 1000]. In June 2017, the harvested biomass was sorted per species, dried for 48 h at 70°C, and weighed. > Calluna.vulgaris: Dried weight of Calluna vulgaris harvested in June 2017. Unit: gram. [0 - 1000]. In June 2017, the harvested biomass was sorted per species, dried for 48 h at 70°C, and weighed. 4. Missing data codes: No missing data References: Lajtha, K., Driscoll, C.T., Jarrell, W.M., & Elliott, E.T. 1999. Soil phosphorus: characterization and total element analysis. In Robertson, G., Coleman, D., Bledsoe, C., & Sollins, P. (eds.), Standard Soil Methods for Long Term Ecological Research, pp. 115–143. Oxford University Press, Oxford. Schelfhout, S., Wasof, S., Mertens, J., Vanhellemont, M., Demey, A., Haegeman, A., DeCock, E., Moeneclaey, I., Vangansbeke, P., Viaene, N., Baeyen, S., De Sutter, N., Maes, M., van der Putten, W.H., Verheyen, K., & De Schrijver, A. 2021. Effects of bioavailable phosphorus and soil biota on typical Nardus grassland species in competition with fast-growing plant species. Ecological Indicators 120: Wasof, S., De Schrijver, A., Schelfhout, S., Perring, M.P., Remy, E., Mertens, J., de la Peña, E., De Sutter, N., Viaene, N., & Verheyen, K. 2019. Linkages between aboveground and belowground community compositions in grasslands along a historical land-use intensity gradient. Plant and Soil 434: 289–304.