Data: 
Weed seed predation, management and landscape, weed seed availability and community strength of seed predation data from 13 winter wheat fields in Skåne, Southern Sweden.
Data are listed in 5 datasets (csv format) with fields separated with [.]
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List of Datasets:
(Name--nRows--nCols)
1.seed_predation--390--6
2.seed_availability--390--5
3.management_intensity--13--2
4.habitat_refugia--52--4
5.community_strength_of_seed_predation--390--5

 
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Datasets collection description:
1.Data on weed seed predation were collected by using seed cards. (1.seed_predation.csv)
2.Data on weed seed availability were collected by using suction sampling (2.seed_availability.csv)
3.Data on management intensity data were collected after communicating with the farm management professionals (owner, renter, employed) about the management intensity (3.management_intensity.csv)
4.Data on habitat refugia were extracted through landscape analysis using the program ArcMap(ESRI, v. 10.4.1) (4.habitat_refugia.csv)
5.Data on and carabid community that were used to estimate the community strength of seed predation were collected using pitfall traps. (5.community_strength_of_seed_predation.csv)
 
Sampling took place during June and July 2018. 
All variables used in each file and content information are described below.
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Description of the column names/variables in each csv files.


- fieldID: Number of the sampled field; 1-13 (in all csv files)
- transect code:  Sampling transects of the field; a-d (in all csv files except 3.management_intensity.csv)
- sampling session: Number of the sampling session; 1 for mid-June and 2 for mid-July (in 1.seed_predation.csv, 2.seed_availability.csv and 5.community_strength_of_seed_predation.csv)
- distance number: Distance to field edge in meters; 4/8/16/32 (in 1.seed_predation.csv, 2.seed_availability.csv and 5.community_strength_of_seed_predation.csv)
- field management intensity: Number of field visits from the farming professional to perform operations (in 3.management_intensity.csv)
- SNH refugia: percentage cover of semi-natural habitat (in 4.habitat_refugia.csv)
- crop refugia: percentage cover of arable crops ( in 4.habitat_refugia.csv)
- community strength of seed predation: index calculated to approximate carabid community strength of predation per sampling point
                                        by combining predator abundance with trait-based metrics of the species-specific likelihood of granivory
                                        seed preferences  and body-mass related feeding rate (in 5.community_strength_of_seed_predation.csv).
                                        The index is given as a whole number.
-number of seeds: Number of all weed seeds available on the soil surface collected per each sampling point using suction sampling (in 2.seed_availability.csv) 
-removed seeds: Number of removed Poa annua seeds from each seed card per sampling point (in 1.seed_predation.csv)
-predation rate: Number of  removed Poa annua seeds from each seed card divided by the initially 50 offered (in 1.seed_predation.csv)