Data from: Fungal symbionts maintain a rare plant population but demographic advantage drives the dominance of a common host

Poa alsodes demographic transitionsSurvival, growth, and reproduction of Poa alsodes individuals in experimental plots 2008-2011. Populations established at the Indiana University Research and Teaching Preserve at Lilly Dickey Woods, Nashville, Indiana, USA (39°14'54''N, –86°13'05''W). Column heading descriptions as follows: "TAG": individual identifier, "PLOT": the plot to which that individual belongs, "Endo": whether plant was endophyte-symbiotic (1) or endophyte-free (0), "Year1": the beginning year of the transition period, "Age1": age of individual at year 1, "Size1": size of individual at year 1 (number of tillers), "Seeds1": projected amount of seed production at year1, "Survto2": whether that individual survives to the next year, "Size2": if it survives, the size of the individual at the next year.POAL_transitions_R.csvPoa sylvestris demographic transitionsSurvival, growth, and reproduction of Poa sylvestris individuals in experimental plots 2008-2011. Populations established at the Indiana University Research and Teaching Preserve at Lilly Dickey Woods, Nashville, Indiana, USA (39°14'54''N, –86°13'05''W). Column heading descriptions as follows: "TAG": individual identifier, "PLOT": the plot to which that individual belongs, "Endo": whether plant was endophyte-symbiotic (1) or endophyte-free (0), "Year1": the beginning year of the transition period, "Age1": age of individual at year 1, "Size1": size of individual at year 1 (number of tillers), "Seeds1": projected amount of seed production at year1, "Survto2": whether that individual survives to the next year, "Size2": if it survives, the size of the individual at the next year.POSY_transitions_R.csvPoa alsodes seedling establishmentSeedling establishment rates of Poa alsodes at the plot level 2008-2011. Column headings as follows: "Plot": plot identifier, "Endo": whether plants in that plot were endophyte-symbiotic (1) or endophyte-free (0), "Year1": beginning year of transition, "Seeds1": total number of seeds produced by plants in that plot , "Recruits2": total number of new recruits to that plot the next year, "P.est": rate of seedling establishment (=Recruits2/Seeds1).POAL_p.est_R.csvPoa sylvestris seedling establishmentSeedling establishment rates of Poa sylvestris at the plot level 2008-2011. Column headings as follows: "Plot": plot identifier, "Endo": whether plants in that plot were endophyte-symbiotic (1) or endophyte-free (0), "Year1": beginning year of transition, "Seeds1": total number of seeds produced by plants in that plot , "Recruits2": total number of new recruits to that plot the next year, "P.est": rate of seedling establishment (=Recruits2/Seeds1).POSY_p.est_R.csvGrowth and survival of Poa alsodes new recruitsGrowth and survival of Poa alsodes new recruits in their first year. Column headings are as follows: "TAG": seedling identifier, "PLOT": plot into which seedling recruited, "Endo": the endophyte status of that plot, "Year1": the year seedling first recorded, "Size1": size (number of tillers) of seedling, "Seeds1": reproduction of seedling at first year, "Survto2": seedling survival into the next year, "Size2": if it survived, seedling size in the next year.POAL_seedlings_R.csvGrowth and survival of Poa sylvestris new recruitsGrowth and survival of Poa sylvestris new recruits in their first year. Column headings are as follows: "TAG": seedling identifier, "PLOT": plot into which seedling recruited, "Endo": the endophyte status of that plot, "Year1": the year seedling first recorded, "Size1": size (number of tillers) of seedling, "Seeds1": reproduction of seedling at first year, "Survto2": seedling survival into the next year, "Size2": if it survived, seedling size in the next year.POSY_seedlings_R.csvIPM and LTRE codeR code to parameterize integral projection models for each species with transitions between endophyte statuses based on transmission rates. Between-species LTRE modeled to compare the contributions of intrinsic demographic rates and effects of endophyte symbiosis towards the observed difference in population growth.