################################################################################ ################################################################################ This package contains data from: ################################################################################ Albrecht, J., Bohle, V., Berens, D.G., Jaroszewicz, B., Selva, N. & Farwig, N. (2015) Variation in neighbourhood context shapes frugivore-mediated facilitation and competition among co-dispersed plant species. Journal of Ecology. ################################################################################ The package contains: 1. Three data files in .csv format that were used in the main analyses of the above mentioned publication; and a file in .csv format containing the geographic locations of the study sites (in latitude, longitude; the unit of measurement is degree [°]) 2. A folder containing raw data files for each study site in .csv format. These raw data files contain information about the plant-frugivore interactions (visitation rate, fruit removal and seed removal), as well as fruit phenologies of the plant species from each study site. The structures of data files are listed below with detailed descriptions of their contents. ################################################################################ 1. Structure and description of data files that were used in the main analyses ################################################################################ 1.1. plant_data_main_analyses_dryad.csv: 'data.frame': 128 obs. of 14 variables: $ plant_species : Factor w/ 15 levels "Cornus.sanguinea",..: 6 14 5 14 5 1 8 15 10 14 ... $ site : Factor w/ 13 levels "102","11","111",..: 1 1 1 3 3 3 3 3 4 4 ... $ year : Factor w/ 2 levels "2011","2012": 1 1 1 1 1 1 1 1 1 1 ... $ phenological_differentiation: num 0.2331 0.0646 0.1022 0.4356 0.0938 ... $ conspecific_fruit_density : num 1249 357143 2608 14881 652 ... $ richness : int 1 3 2 4 8 4 4 4 3 8 ... $ total_richness : int 5 5 5 9 9 9 9 9 14 14 ... $ visits : int 1 5 10 10 96 60 13 28 3 211 ... $ total_visits : int 16 16 16 207 207 207 207 207 336 336 ... $ fruit_removal : int 1 16 23 19 191 112 27 19 8 730 ... $ total_fruit_removal : int 40 40 40 368 368 368 368 368 1006 1006 ... $ seed_removal : int 3 22 58 26 490 112 89 19 93 1021 ... $ total_seed_removal : int 83 83 83 736 736 736 736 736 1802 1802 ... $ plant_specialization_d : num 0.394 0.904 1 0.13 0.218 ... Description of the variables $ plant_species : IDs of the 15 plant species that have been observed in the study $ site : IDs of the 13 study sites that were included in the main analyses $ year : in which observations were conducted (2011 and 2012) $ phenological_differentiation: of the plant species on the study sites, quantified as the standardized Kullback-Leibler-divergence d’ (Blüthgen et al. 2006) $ conspecific_fruit_density : of the plant species on the study sites given as the number of fruits per 1 hectare $ richness : number of frugivore species that visited a plant species in a given study site during 18 hours of observation $ total_richness : total number of frugivore species that were recorded on all plant species in the respective study site $ visits : number of times that a plant species was visited by frugivores in a given study site during 18 hours of observation $ total_visits : total number of frugivore visits that were recorded on all plant species in the respective study site $ fruit_removal : number of fruits removed from a plant species in a given study site during 18 hours of observation $ total_fruit_removal : total number of fruits removed from all plant species in the respective study site $ seed_removal : number of seeds removed from a plant species in a given study site during 18 hours of observation $ total_seed_removal : total number of seeds removed from all plant species in the respective study site $ plant_specialization_d : specialization of a plant species on frugivores, quantified as the standardized Kullback-Leibler-divergence d’ (Blüthgen et al. 2006) 1.2. plant_occurrence_data_dryad.csv: num [1:15, 1:13] 3.6 56.9 177.9 1.5 0 ... - attr(*, "dimnames")=List of 2 ..$ plant_species: chr [1:15] "Prunus.padus" "Ribes.spicatum" "Rubus.idaeus" "Ribes.nigrum" ... ..$ site : chr [1:13] "site_11" "site_13" "site_15" "site_30" ... Description of the variables: num [1:15, 1:13] : a matrix with I rows and J columns, in which each cell ij gives the mean number of individuals of plant species i on study site j per 1 hectare ..$ plant_species: IDs of the 15 plant species that have been observed in the study ..$ site : IDs of the 13 study sites that were included in the main analyses 1.3. plant_phenology_data_dryad.csv: num [1:15, 1:15] 1102 803 0 0 0 ... - attr(*, "dimnames")=List of 2 ..$ plant_species: chr [1:15] "Prunus.padus" "Ribes.spicatum" "Rubus.idaeus" "Ribes.nigrum" ... ..$ week : chr [1:15] "date_06-25" "date_07-02" "date_07-09" "date_07-16" ... Description of the variables: num [1:15, 1:15] : a matrix with I rows and J columns, in which each cell ij gives the mean number fruits of an individual of plant species i in week j ..$ plant_species: IDs of the 15 plant species that have been observed in the study ..$ week : date of the first day of the 15 one-week periods over which the mean number of fruits have been calculated (formatted as date_month-day) 1.4. study_site_locations.csv: 'data.frame': 13 obs. of 3 variables: $ site : IDs of the 13 study sites that were included in the main analyses $ latitude : latitude of the locations of the study sites, in degrees $ longitude: longitude of the locations of the study sites, in degrees ################################################################################ 2. Structure and description of raw data files for each study site containing information about the plant-frugivore networks, as well as fruit phenologies of the plant species. Since there are 20 files of each type (data from 7 study sites in 2011 and data from 13 study sites in 2012), below we provide a summary for each file type only. The file names contain the site id followed by the study year and the type of information (separated by an underscore). ################################################################################ 2.1. site_year_visitation_net.csv Description of the file: num [1:i, 1:j] : a matrix with I rows and J columns, in which each cell ij gives the number of visits of frugivore species j on plant species i during 18 hours of observation ..$ plant_species : IDs of the i plant species that have been observed on the study site in the study year ..$ frugivore_species: IDs of the j frugivore species that have been observed visiting the plant species on the study site in the study year 2.2. site_year_fruit_removal_net.csv Description of the file: num [1:i, 1:j] : a matrix with I rows and J columns, in which each cell ij gives the number of fruits that frugivore species j removed from plant species i during 18 hours of observation ..$ plant_species : IDs of the i plant species that have been observed on the study site in the study year ..$ frugivore_species: IDs of the j frugivore species that have been observed visiting the plant species on the study site in the study year 2.3. site_year_seed_removal_net.csv Description of the file: num [1:i, 1:j] : a matrix with I rows and J columns, in which each cell ij gives the number of seeds that frugivore species j removed from plant species i during 18 hours of observation ..$ plant_species : IDs of the i plant species that have been observed on the study site in the study year ..$ frugivore_species: IDs of the j frugivore species that have been observed visiting the plant species on the study site in the study year 2.4. site_year_scaled_fruit_phenology.csv Description of the variables: num [1:i, 1:j] : a matrix with I rows and J columns, in which each cell ij gives the number fruits per 1 hectare of plant species i in week j on the respective study site ..$ plant_species: IDs of the i plant species that have been observed on the study site in the study year ..$ week : date of the first day of the j one-week periods over which the number fruits per 1 hectare of plant species i have been calculated (formatted as date_month-day) ################################################################################ References ################################################################################ Blüthgen, N., Menzel, F. & Blüthgen, N. (2006) Measuring specialization in species interaction networks. BMC ecology, 6, 9–20.