Data about flowering plant communities collected in cereal fields, leys and semi-natural grasslands and used for the analyses.

Authors:

Name: Romain Carrié
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)