Data about flowering plant communities collected in cereal fields, leys and semi-natural grasslands and used for the analyses. Authors: Name: Romain CarriƩ Insititution: Centre for Environmental and Climate Research, Lund University Email: romain.carrie@cec.lu.se (corresponding author) Name: Johan Ekroos Insititution: Department of Agricultural Sciences, Plant Production Sciences, University of Helsinki Name: Henrik Smith Insititution: Department of Biology, Lund University Two files: - data_Carrie_et_all_Ecol_Appl_dryad: contains the data for the analysis on flowering plant species richness (habitat and farm scales) and the proportion of exclusive species at the plot, habitat and regional scales. - data_traits_Carrie_et_all_Ecol_Appl_dryad: contains the same data but for each trait (herbicide and nitrogen sensitivity), at the habitat and regional scales. Tabs for the file data_Carrie_et_all_Ecol_Appl_dryad: - species richness habitat: Flowering plant species richness at the habitat scale - species richness farm: Flowering plant species richness at the farm scale - exclusive plot: proportion of plot-exclusive plant species per habitat type and farming system (intra-habitat turnover) - exclusive habitat: proportion of habitat-exclusive plant species per habitat type and farming system (inter-habitat turnover) - exclusive farming syst: proportion of farming system-exclusive plant species for each possible organic-conventional farm pair (regional turnover) Tabs for the file data_traits_Carrie_et_all_Ecol_Appl_dryad: - herbicide excl habitat: proportion of herbicide sensitive/tolerant habitat-exclusive plant species per habitat type and farming system (inter-habitat turnover) - nitrogen excl habitat: proportion of nitrogen sensitive/tolerant habitat-exclusive plant species per habitat type and farming system (inter-habitat turnover) - herbicide excl farming system: proportion of herbicide sensitive/tolerant farming system-exclusive plant species for each possible organic-conventional farm pair (regional turnover) - nitrogen excl farming system: proportion of nitrogen sensitive/tolerant farming system-exclusive plant species for each possible organic-conventional farm pair (regional turnover) Variables: - farm.ID: farm ID - Habitat.type: Habitat type sampled (cereal, ley and sng = semi-natural grassland) - Farm.syst: farming system of the corresponding farm (org = organic, conv = conventional) - p.SNG: average proportion of semi-natural grasslands around the sampling plots - flower.SR: Flowering plant species richness (response variable) - p.excl: proportion of exclusive flowering plant species (plot, habitat and regional scales) (response variable) - Sensitivity.MCPA: sensitivity to the MCPA herbicide (MCPA is one of the most used herbicide in Sweden), measuring herbicide sensitivity in the analysis (Y = sensitive, N = non-sensitive). - Family: plant species family (Legume, Non-legume) measuring nitrogen input sensitivity in the analysis (Legume = nitrogen sensitive, Non-legume = nitrogen tolerant). Variables specific to tab 'exclusive farming syst' in file 'data_Carrie_et_all_Ecol_Appl_dryad': These variables are calculated at the scale of a farm pair (conventional-organic pair) - Id.pair : ID of the conventional-organic farm pair - Farm.ID.conv: ID of the conventional farm - Farm.ID.org: ID of the organic farm - sr.conv: Flowering plant species richness of the conventional farm - sr.org: Flowering plant species richness of the organic farm - nb.shared: Number of shared species between the two farms of the pair - p.shared: Proportion of shared species between the two farms of the pair (response variable, Fig. 6b) - sr.change: Change in species richness when shifting from conventional to organic (response variable, Fig. 6a) - p.excl.org: proportion of exclusive flowering plant species to the organic farm in the pair (response variable, Fig. 6b) - p.excl.conv: proportion of exclusive flowering plant species to the conventional farm in the pair (response variable, Fig. 6b)