Data and R-scripts for: “Misreading or living in denial? Reindeer overstocking and long-term effects on vegetation: an experimental approach” Reindeer-lichen dynamics in Finnmark, Norway Data and R-scripts for: “Misreading or living in denial? Reindeer overstocking and long-term effects on vegetation: an experimental approach” 2024-610-1 https://doi.org/10.5878/tkv6-jp59 Swedish National Data Service Svensk nationell datatjänst Landing page Data and R-scripts for: “Misreading or living in denial? Reindeer overstocking and long-term effects on vegetation: an experimental approach” Reindeer-lichen dynamics in Finnmark, Norway Data and R-scripts for: “Misreading or living in denial? Reindeer overstocking and long-term effects on vegetation: an experimental approach” 2024-610-1 https://doi.org/10.5878/tkv6-jp59 10.1002/ecs2.70174 Bårdsen, Bård-Jørgen Bårdsen, Bård-Jørgen Tømmervik, Hans Tømmervik, Hans Næss, Marius Warg Næss, Marius Warg Bjerke, Jarle Werner Bjerke, Jarle Werner 869471 869471 101043382 101043382 Swedish National Data Service Svensk nationell datatjänst Landing page overgrazing överbetning density dependence reindeer ren lichens grazing intensity Cladonia arbuscula gulvit renlav Cladonia stellaris fönsterlav Stereocaulon paschale påskrislav Cetraria islandica islandslav Rangifer tarandus vildren Cladonia rangiferina grå renlav Cladonia mitis mild renlav nephromopsis nivalis (l.) divakar, a. crespo & lumbsch Biota Biologi och ekologi Environment Miljö Our study assessed ground-lichen responses, measured at plots of ca. one m² in size, to reindeer grazing pressure. Our study area is ca. 14 000 km² in size and is in Finnmark, Northern Norway. The study was initiated in 1998, and the same plots were re-visited in 2005, 2010, 2013, and 2018. This study is part of a long-term monitoring program of the lichen pastures in Norway. The data sets include information about ground-lichen biomass (g per m²), volume (L per m²), cover (%), and height (mm), which were our responses. The key predictors consisted of experimental manipulation, reindeer density (individuals per km²), initial conditions (i.e., the observed values for a given response in 1998), and habitat (Forest- and leeward-heath vs. exposed ridges mountain heaths). The experimental manipulation allowed us to compare plots exposed to grazing and trampling by reindeer and other larger herbivores (control) to fenced (treatment) areas. In addition, we included several spatial and temporal variables acting as potential random effects in our mixed effects models: district, transect, block and year (we provide additional information about the data and the analyses in the published article). Dette datasettet stammer fra en langsiktig studie av hvordan lavbeiter responderer på ulikt beitepress fra tamrein i et område på ca. 14 000 km² i Finnmark, Nord-Norge. Studien startet i 1998, og de samme plottene (ca. en m²) ble besøkt igjen i 2005, 2010, 2013 og 2018. Studien er en del av et langsiktig overvåkingsprogram av lavbeitene i regionen. Datasettet inneholder informasjon om responsene i analysene våre; lavmattens biomasse (g per m²), volum (L per m²), dekke (%) og høyde (mm). De viktigste prediktorene besto av eksperimentell behandling (inngjerdet vs. åpent), reintetthet (individer per km²), startforhold (observerte responsverdiene i 1998) og habitat (skog- og lerabb vs. mer eksponert vindrabb). Den eksperimentelle tilnærmingen vår tillot en sammenligning av plott der rein og andre store herbivorer kunne beite og bevege seg fritt (kontrollene) mot inngjerdede områder (eksperimentell manipulering). I tillegg inkluderte vi flere romlige og tidsmessige variabler som fungerte som mulige tilfeldige effekter; distrikt, transekt, felt (blokk) og år. Ytterligere detaljer om både data og studieområdet er gitt i den publiserte artikkelen. Norway Norge Numeric Text Details are provided in Bårdsen et al. (2025, Ecosphere)Details are provided in Bårdsen et al. (2025, Ecosphere) Detaljer er beskrevet i Bårdsen m.fl. (2025, Ecosphere)Detaljer er beskrevet i Bårdsen m.fl. (2025, Ecosphere) Field/Intervention experimentField/Intervention experiment FältexperimentFältexperiment Details are provided in Bårdsen et al. (2025, Ecosphere)Details are provided in Bårdsen et al. (2025, Ecosphere) Detaljer er beskrevet i Bårdsen m.fl. (2025, Ecosphere)Detaljer er beskrevet i Bårdsen m.fl. (2025, Ecosphere) Field observationField observation FältobservationFältobservation Access to data through SND. Data are freely accessible. Åtkomst till data via SND. Data är fritt tillgängliga. openAccess Bårdsen, Bård-Jørgen, Hans Tømmervik, Marius Warg Næss, and Jarle Werner Bjerke. 2025. Misreading or Living in Denial? Reindeer Overstocking and Long-Term Effects on Vegetation: An Experimental Approach. Ecosphere 16(2): e70174. https://doi.org/10.1002/ecs2.70174. Bårdsen, Bård-Jørgen, Hans Tømmervik, Marius Warg Næss, and Jarle Werner Bjerke. 2025. Misreading or Living in Denial? Reindeer Overstocking and Long-Term Effects on Vegetation: An Experimental Approach. Ecosphere 16(2): e70174. https://doi.org/10.1002/ecs2.70174. 10.1002/ecs2.70174 2025