Environmental data from the plant recruitment experiment in alpine vegetation at Dovrefjell, Central Norway, 2013-2018 and from the paper "Herbivores reduce the invasibility of alpine plant communities" "plot": Plot type, a combination of plant community+block+treatment. 96 in total. "disturbance": Either removal of ground vegetation/disturbance (yes) or intact ground vegetation (no) "subplot": Subplot type (two within each plot) with the unique plant community+block+treatment+disturbance-combination. DS=disturbed subplot and IS=intact/undisturbed subplot. "community": Plant community type. H=heath, M=meadow, W=willow shrubland "block": Block number(1-8) within each plant community "treatment": Plot treatment type. C=control, E=exclosure, ET=exclosure and willow shrub introduction, T=willow shrub introduction "exclosure": Presence or absence of exclosure (yes/no) "willow": Presence or absence of introduced willow shrubs (yes/no) "t.w.mean.14": Winter mean/max/min temperatures (degrees Celsisus) 2014/2015/2016 (from the 1st of January to 28th of February) measured at the soil surface. Not applicable for disturbed subplots "t.w.max.14": Winter mean/max/min temperatures (degrees Celsisus) 2014/2015/2016 (from the 1st of January to 28th of February) measured at the soil surface. Not applicable for disturbed subplots "t.w.min.14": Winter mean/max/min temperatures (degrees Celsisus) 2014/2015/2016 (from the 1st of January to 28th of February) measured at the soil surface. Not applicable for disturbed subplots "t.s.mean.14": Summer mean/max/min temperatures (degrees Celsisus) 2014/2015/2016 (from the 1st of July to 31st of August) measured at the soil surface. Not applicable for disturbed subplots "t.s.max.14": Summer mean/max/min temperatures (degrees Celsisus) 2014/2015/2016 (from the 1st of July to 31st of August) measured at the soil surface. Not applicable for disturbed subplots "t.s.min.14": Summer mean/max/min temperatures (degrees Celsisus) 2014/2015/2016 (from the 1st of July to 31st of August) measured at the soil surface. Not applicable for disturbed subplots "t.w.mean.15": Winter mean/max/min temperatures (degrees Celsisus) 2014/2015/2016 (from the 1st of January to 28th of February) measured at the soil surface. Not applicable for disturbed subplots "t.w.max.15": Winter mean/max/min temperatures (degrees Celsisus) 2014/2015/2016 (from the 1st of January to 28th of February) measured at the soil surface. Not applicable for disturbed subplots "t.w.min.15": Winter mean/max/min temperatures (degrees Celsisus) 2014/2015/2016 (from the 1st of January to 28th of February) measured at the soil surface. Not applicable for disturbed subplots "t.s.mean.15": Summer mean/max/min temperatures (degrees Celsisus) 2014/2015/2016 (from the 1st of July to 31st of August) measured at the soil surface. Not applicable for disturbed subplots "t.s.max.15": Summer mean/max/min temperatures (degrees Celsisus) 2014/2015/2016 (from the 1st of July to 31st of August) measured at the soil surface. Not applicable for disturbed subplots "t.s.min.15": Summer mean/max/min temperatures (degrees Celsisus) 2014/2015/2016 (from the 1st of July to 31st of August) measured at the soil surface. Not applicable for disturbed subplots "t.s.mean.16": Summer mean/max/min temperatures (degrees Celsisus) 2014/2015/2016 (from the 1st of July to 31st of August) measured at the soil surface. Measured in both intact and disturbed subplots "t.s.max.16": Summer mean/max/min temperatures (degrees Celsisus) 2014/2015/2016 (from the 1st of July to 31st of August) measured at the soil surface. Measured in both intact and disturbed subplots "t.s.min.16": Summer mean/max/min temperatures (degrees Celsisus) 2014/2015/2016 (from the 1st of July to 31st of August) measured at the soil surface. Measured in both intact and disturbed subplots "t.w.mean.16": Winter mean/max/min temperatures (degrees Celsisus) 2014/2015/2016 (from the 1st of January to 28th of February) measured at the soil surface. Not applicable for disturbed subplots "t.w.max.16": Winter mean/max/min temperatures (degrees Celsisus) 2014/2015/2016 (from the 1st of January to 28th of February) measured at the soil surface. Not applicable for disturbed subplots "t.w.min.16": Winter mean/max/min temperatures (degrees Celsisus) 2014/2015/2016 (from the 1st of January to 28th of February) measured at the soil surface. Not applicable for disturbed subplots "t.w.mean.17": Winter mean/max/min temperatures (degrees Celsisus) 2017 (from the 1st of January to 28th of February) measured at the soil surface. Measured in both intact and disturbed subplots "t.w.max.17": Winter mean/max/min temperatures (degrees Celsisus) 2017 (from the 1st of January to 28th of February) measured at the soil surface. Measured in both intact and disturbed subplots "t.w.min.17": Winter mean/max/min temperatures (degrees Celsisus) 2017 (from the 1st of January to 28th of February) measured at the soil surface. Measured in both intact and disturbed subplots "t.s.mean.17": Summer mean/max/min temperatures (degrees Celsisus) 2017 (from the 1st of July to 31st of August) measured at the soil surface. Measured in both intact and disturbed subplots "t.s.max.17": Summer mean/max/min temperatures (degrees Celsisus) 2017 (from the 1st of July to 31st of August) measured at the soil surface. Measured in both intact and disturbed subplots "t.s.min.17": Summer mean/max/min temperatures (degrees Celsisus) 2017 (from the 1st of July to 31st of August) measured at the soil surface. Measured in both intact and disturbed subplots "light.aug.16": Amount of light/photosynthetic active radiation (μE) reaching through all vegetation layers. Measured as the % difference in light above the vegetation canopy and at the ground. Measured 10.08.16 during cloundy, windy weather with some sun. All plots measured in one day "light.sep.16": Amount of light/photosynthetic active radiation (μE) reaching through all vegetation layers. Measured as the % difference in light above the vegetation canopy and at the ground. Measured 09.09.16 during changing weather with clounds and sun. Dry. All plots measured in one day "snow.17": Snowdepth (cm) 2017. Mean out of four measurements in each plot corner. All plots measured in one day, 11.03.17 "snow.16": Snowdepth (cm) 2016. Mean out of four measurements in each plot corner. Meadow and willow measured 02.04.16, heath 03.04.16 "snow.15": Snowdepth (cm) 2015. Mean out of four measurements in each plot corner. Meadow and willow measured 14.03.15, heath 15.03.15 "snowmelt.16": Snow melt timing 2016 (days after 31st of March 2016). The day when temperatures suddenly increased. "moist.sep.14": Soil moisture (% volumetric soil moisture content) 12.09.2014. Mean out of four measurements. All plots measured in one day. Heath first, then meadow and last willow. Sunny and dry weather "moist.jul.15": Soil moisture (%). Mean out of four measurements. Measured over three days in July 2015: 21.07.2015 (heath), 22.07.2015 (willow), 23.07.2015 (meadow). Rainy and overcast weather all days "moist.aug.16": Soil moisture (%). Mean out of four measurements for intact vegetation, based on one measurement for disturbed subplot. All plots measured in one day (10.08.16). Cloudy, windy, some sun "moist.sep.16": Soil moisture (%). Mean out of four measurements for intact vegetation, based on one measurement for disturbed subplot. All plots measured in one day (09.08.16). Weather changing between clounds and sun, dry "shrub.hits.14":Total number of shrub hits from point intercept analysis in 2014 with 25 pins dist. across a 0.25 m2 square (Betula nana, Salix lapponum, Salix glauca and Salix transplants) per plot, including both stems and leaves. Only calculated for the willow community. "shrub.hits.15":Total number of shrub hits from point intercept analysis in 2015 with 25 pins dist. across a 0.25 m2 square (Betula nana, Salix lapponum, Salix glauca and Salix transplants) per plot, including both stems and leaves. Only calculated for the willow community. "shrub.hits.16":Total number of shrub hits from point intercept analysis in 2016 with 25 pins dist. across a 0.25 m2 square (Betula nana, Salix lapponum, Salix glauca and Salix transplants) per plot, including both stems and leaves. Only calculated for the willow community. "elevation": Meters above sea level "lat": Latitude "long": Longitude "dom.veg": Dominating vegetation in the willow subplots (different categories) "litter.14": % litter cover in the seedling subplots. Visually estimated during seedling records "litter.15": % litter cover in the seedling subplots. Visually estimated during seedling records "litter.16": % litter cover in the seedling subplots. Visually estimated during seedling records "regrowth.14": % vegetative regrowth in the disturbed seeded subplots. Visually estimated during seedling records. Not applicable for the intact seeded subplots "regrowth.15": % vegetative regrowth in the disturbed seeded subplots. Visually estimated during seedling records. Not applicable for the intact seeded subplots "regrowth.16": % vegetative regrowth in the disturbed seeded subplots. Visually estimated during seedling records. Not applicable for the intact seeded subplots "t.s.mean.18": Summer mean/max/min temperatures (degrees Celsisus) 2018 (from the 1st of July to 31st of August) measured at the soil surface. Measured in both intact and disturbed subplots "t.s.max.18": Summer mean/max/min temperatures (degrees Celsisus) 2018 (from the 1st of July to 31st of August) measured at the soil surface. Measured in both intact and disturbed subplots "t.s.min.18": Summer mean/max/min temperatures (degrees Celsisus) 2018 (from the 1st of July to 31st of August) measured at the soil surface. Measured in both intact and disturbed subplots "t.w.mean.18": Winter mean/max/min temperatures (degrees Celsisus) 2018 (from the 1st of January to 28th of February) measured at the soil surface. Measured in both intact and disturbed subplots "t.w.max.18": Winter mean/max/min temperatures (degrees Celsisus) 2018 (from the 1st of January to 28th of February) measured at the soil surface. Measured in both intact and disturbed subplots "t.w.min.18": Winter mean/max/min temperatures (degrees Celsisus) 2018 (from the 1st of January to 28th of February) measured at the soil surface. Measured in both intact and disturbed subplots "light.s.18": Amount of light/photosynthetic active radiation (μE) reaching through all vegetation layers. Measured as the % difference in light above the vegetation canopy and at the ground. "moist.jul.18": Soil moisture (% volumetric soil moisture content). Mean out of four measurements "veg.height.16.mean": Average vegetation height per plot measured during point intercept vegetation analysis with 25 pins distributed across a 0.25 m2 square