This readme file was generated on 2022-10-15 by Naomi A. Murray GENERAL INFORMATION Title of Dataset: [XXXXXX] Author Information Name: Naomi Murray ORCID: 0000-0002-4343-6264 Institution: University of California, Davis Email: naomiamurray@gmail.com Co-author Information Name: Jay Stachowicz ORCID: 0000-0003-2735-0564 Institution: University of California, Davis Email: jjstachowicz@ucdavis.edu Date of data collection: between 2019-06 and 2021-09 Geographic location of data collection: Bodega Bay, California, USA DATA & FILE OVERVIEW File List: - feeding_trial_FINAL - feeding preference data for Pentidotea resecata as described in the methods section - valida_data - feeding preference data for Ampithoe valida as described in the appendix - penetrometer_2020 - leaf toughness data from plants used in the P. resecata feeding trial - gone_wild - data on P. resecata consumption and plant traits used to build the structural equation model - mesocosm - data from vectoring mesocosm experiment - micro_redo - data from vectoring microcosm experiment - Lesions_2020 - field disease severity data from summers of 2019 and 2020 METHODOLOGICAL INFORMATION Methods for collecting, generating, and processing the data: see [Publication DOI] Information needed to interpret the data: All analyses were conducted in R (version 4.2.1), and necessary packages can be found at the top of each R-script in this repository. DATA-SPECIFIC INFORMATION FOR: Lesions_2020 Variable List: - Year - Year that the plant was sampled - Time_Point - Number of the sampling; 1 corresponds to the first sampling point, 2 corresponds to the second, etc. - Plant_Number - Number of each individual plant within each sampling point. - Lesion_Cover - The percent of the plant that was lesioned - Prevalence - either 1 (plant had some lesion are) or 0 (plant was completely lesion free). - Day_Year - Day of the year on which the plant was sampled DATA-SPECIFIC INFORMATION FOR: feeding_trial_FINAL AND valida_data Variable List: - Cup_Number - each cup contained one section of green tissue, one section of lesion tissue, and one bug - Leaf_Health - G = green tissue, L = lesion tissue - Percent_Total_Consumed - The percent of each leaf section that was consumed - Actual_Area_Consumed - The area (in cm2) of each leaf section that was consumed DATA-SPECIFIC INFORMATION FOR: Penetrometer_2020 Variable List: - Plant_ID - The plant ID number corresponds with the feeding trial cup number (Plant 1 was in Cup 1) - Leaf_Health - G = green tissue, L = lesion tissue - Penetrometer_Mass - The amount of sand (g) needed to pierce the leaf tissue (see methods). DATA-SPECIFIC INFORMATION FOR: gone_wild ** denotes variables used in the analysis. Variable List: - Cup_Number - the same as in the feeding_trial_FINAL dataset; trait data were taken for each plant in the trial. - Percent_Green_Consumed = The percent of the green leaf section that was consumed (relative to the total area of the leaf section) - Percent_Lesion_Consumed = The percent of the lesion leaf section that was consumed (relative to the total area of the leaf section) - Green_Lesion = the ratio of "Percent Total Consumed Green" to "Percent Total Consumed Lesion. Measure of the preference for lesion tissue. - Percent_Total_Consumed_Green = The percent of green tissue consumed relative to the total area of tissue consumed ** Percent_Total_Consumed_Lesion - The percent of lesion tissue consumed relative to the total area of tissue consumed - Clip_Lesion_Cover = The percent of the lesion leaf section that was actually lesioned. - Plant Area = The total leaf area of the entire plant used in each replicate. ** Plant_Lesion_Cover - The percent of the entire plant that was lesioned. - Total_Detritus = The percent of the entire plant that was either lesioned or decaying. - Green_Penetrometer = The mass of sand (g) required to pierce the green leaf tissue of the plant. ** Lesion_Penetrometer - The mass of sand (g) required to pierce the lesion leaf tissue of the plant. - G_L_Penetrometer = The ratio of the green penetrometer mass to lesion penetrometer mass. - Green Phenolics = Phenolic acid content of the green tissue of the plant (given as a percent of dry weight). ** Lesion_Phenolics - Phenolic acid content of the lesion tissue of the plant (given as a percent of dry weight). - G_L_Phenolics = The ratio of the green phenolics to lesion phenolics. - Green_Carbon = The percent carbon of the green tissue of the plant. - Green_Nitrogen = The percent nitrogen of the green tissue of the plant. - Green_C_N = The ratio of C:N in the green tissue of the plant. - Lesion_Carbon = The percent carbon of the lesion tissue of the plant. - Lesion_Nitrogen = The percent nitrogen of the lesion tissue of the plant. ** Lesion_C_N - The ratio of C:N in the lesion tissue of the plant. - G_L_C_N = The ratio of C:N in green tissue to C:N in lesion tissue. - Green_Clip_Width = Width (in cm) of the green leaf section ** Lesion_Clip_Width - Width (in cm) of the lesion leaf section - Isopod Length = Length (in mm) of the isopod in each replicate. Missing data is denoted with NA. DATA-SPECIFIC INFORMATION FOR: micro_redo ** denotes variables used in the analysis. Variable List: ** Tank - unique identifier for each replicate ** Number - replicate number within each treatment ** Treatment - Denotes the imposed treatment (bug for added isopod, clip for artificial damage, or con for control) - BEFORE_disease = lesion area (cm2) on the central, lesioned leaf section before the experiment began - AFTER_disease = lesion area (cm2) on the central, lesioned leaf section at the end of the experimental period ** section_ID - identifier for each clip in each microcosm. "FOCAL" is the central, lesioned section, and "1" and "2" are the two surrounding clips. - AFTER_total = lesion area (cm2) in the whole microcosm (across all three leaf sections) at the end of the experiment - AFTER_total_change = change in total change in lesion area (cm2) during the experiment; "BEFORE_disease" minus "AFTER_total" - AFTER_change = the change in lesion area (cm2) for each leaf section. For each microcosm there are three values for "AFTER_change" -- one corresponding to the central, lesioned section ("focal") and one for each of the two surrounding sections. ** AFTER_pclean - sum of the final lesion area on the two surrounding leaf sections (cm2). ** AFTER_pclean_redo - sum of the final lesion area on the two surrounding leaf sections (cm2) -- Jay was concerned that Naomi's lesion area measurements were off (many are very close to zero), so she redid them and this is the new sum. - Infection_Points = number of distinct lesions in the tank. - Associated_with_Damage = number of infection points associated with either clipping (both notches cut out of blades as the "clipping" treatment, as well as at the ends of each clip in all treatments) or herbivory. - Proportion_Associated_Damage = ratio of infection points associated with any sort of clipping damage to the total number of infection points Missing data is left blank. DATA-SPECIFIC INFORMATION FOR: mesocosm ** denotes variables used in the analysis. Variable List: ** Number - replicate number within each treatment ** Treatment - Denotes the imposed treatment (bug for added isopod, clip for artificial damage, or con for control) - BEFORE_Disease = percent lesion cover on the central, unclipped plant before the experiment began - BEFORE_Lesion = number of distinct lesions on the central, unclipped plant before the experiment began - AFTER_Disease = percent lesion cover on the central, unclipped plant after the experimental period ** AFTER_Lesion = number of distinct lesions on the central, unclipped plant after the experimental period - AFTER_p1 = the percent lesion cover on focal plant 1 after the experimental period - p1_Lesion = number of distinct lesions on focal plant 1 after the experimental period - AFTER_p2 = the percent lesion cover on focal plant 1 after the experimental period - p2_Lesion = number of distinct lesions on focal plant 1 after the experimental period - AFTER_p3 = the percent lesion cover on focal plant 1 after the experimental period - p3_Lesion = number of distinct lesions on focal plant 1 after the experimental period - AFTER_total = total percent lesion area after the experimental period (summed across all four plants) - AFTER_total_change = percent lesion after the experiment (summed across all four plants), minus the initial percent lesion; AFTER_total minus BEFORE_Disease - AFTER_disease_change = final percent lesion on the central, unclipped plant after the experimental period minus the initial percent lesion on the central, unclipped plant; AFTER_Disease minus BEFORE_Disease - AFTER_pclean = area of lesion tissue (cm2) that formed on the focal plants during the experimental period (summed across the three focal plants) - AFTER_pclean_lesion = number of distinct lesions that formed on the focal plants during the experimental period (summed across the three focal plants) - AFTER_total_lesion_change = change in the total number of lesions during the experimental period (across all four plants) - BEFORE_Lesion_Area = initial lesion area (cm2), summed across all four plants - AFTER_Lesion_Area = final lesion area (cm2) after the experimental period, summed across all four plants ** Lesion_Area_Change = total lesion area (cm2) after the experiment (summed across all four plants), minus the initial lesion area (cm2); "AFTER_Lesion_Area" minus "BEFORE_Lesion_Area" Missing data is left blank.