--- output: word_document: default html_document: default --- # Data from: Environmental context and herbivore traits mediate the strength of associational effects in a meta-analysis of crop diversity. Published in Journal of Applied Ecology by Phil Hahn and Joey Cammarano. --- Contact: Phil Hahn hahnp@ufl.edu The data file (HAHN-JAPPL-2022-00678_MainDATA.csv) contains data extracted from published articles. All the data required to conduct the meta-analysis are contained in this file, except for the bioclimatic data, which need to be obtained by the user from: https://www.worldclim.org/data/worldclim21.html ## Below is a table with the variables contained in the dataset and a description of each variable. |Variable | Description |---------|------------| |Lat | Latitude of study | |Long | Longitude of study | |PaperCode | Paper code: For papers from Barbosa and Letournea, numbers match the list in their appendices. For papers from the new literature search, numbers are sequential 1-26.| |Source | Source: Barbosa et al. (2009), Letournea et al. 2011, or new literature search.| |Neighbor_gen | Genus of neighboring plant in biculture.| |Neighbor_spp | Species of neighboring plant in biculture.| |Focal_gen | Genus of focal plant species.| |Focal_spp | Species of focal plant.| |Herbivore_gen | Genus of herbivore pest. If genus was not reported, it is the lowest taxanomic resolution reported.| |Herbivore_spp | Species of herbivore pest | |FeedGuild | Feeding guild, PS=piecing/sucking, borer=stem borer, Chew=chewing. Only 1 'borer' appeared in the dataset, so it was not analyzed as a feeding guild type.| |HostRange | Host range, Mono=monophagus, Oligo=oligophagus, Poly=polyphagus.| |HostRange2 | Host range (two categories): Specialist and Generalist | |InsectOrigin | Insect origin status: native, non-native, unknown (ie. globally distributed pest species). Blank cells are cases where the species was not reported. Origin status was determined by searching CABI and university extension databases.| |LifeStage | Life stage of insect pest: eggs, adult, larvae, pupae, or all| |PlotSize | Plot size in m2 of the study plots.| |PlotArrang | Arrangment of neighboring plant: Perim= neighbor planted around the perimeter of the plot, inside= neighbor planted inside plot among the focal plant.| |mean_bi | Mean of insect abundance on focal plants in the biculture treatment | |SD_bi | Standard deviation of insect abundance on focal plants in the biculture treatment| |SE_bi | Standard error of insect abundance on focal plants in the biculture treatment | |SS_bi | Sample size of plots in the biculture treatment | |mean_mono | Mean of insect abundance on focal plants in the monoculture treatment| |SD_mono | Standard deviation of insect abundance on focal plants in the monoculture treatment| |SE_mono | Standard error of insect abundance on focal plants in the monoculture treatment | |SS_mono | Sample size of plots in the monoculture treatment | |DensityConstant | Experimental design type, Add = additive design where focal plant density remained constant, Sub = substitutive design where some focal plants were replaced with neighbors in the biculture treatment| |notes 1 | Notes on additional aspects of the experimental design. If a study had experiments in multiple years, or with different densities/frequencies, etc. these are recorded here. The additional notes columns are for studies that had multiple aspects of the design that we recorded to differentiate between the rows. Blank cells in the notes column are cases where there was nothing to note.| |notes 2 | notes| |notes 3 | notes | ## Sharing/Access information This is a section for linking to other ways to access the data, and for linking to sources the data is derived from, if any. Links to other publicly accessible locations of the data: * NA Data was derived from the following sources: * NA ## Code/Software Associated R script is made available, which will fully reproduce all the analyses report in the paper and remake all the figures.