Evaluating the contribution of individual variation in parasite-mediated anorexia to trophic cascades

These are data and R code for study "Yen-Hua Huang and Vanessa O. Ezenwa. 2025. Evaluating the contribution of individual variation in parasite-mediated anorexia to trophic cascades." This study evalutes individual variaton in parasite-mediated changes in herbivore feeding rate using empirical data (Grant's gazelle-hleminth system) andexplore how this feeding changes affect helminth-herbivore-plant trophic cascades using simulation models. "Monthly parasite infection and feeding rate.csv" contains the monthly empirical data.This includes Grant's gazelle behavior, strongyle load, and relevant data following anthelmintic treatment for nine gazelles.Tree cover data were extracted from Moderate Resolution Imaging Spectroradiometer (Terra MODIS; MOD44B) based on observed locations Column explanation:ID: animal IDMonth: year and month of the dataFEC: fecal egg count of strongyleFT: average percent time spent feedingVigilance: average percent time being vigilantGroupSize: average group size when observedTree: average percent tree coverTreeSD: standard deviation of percent tree cover "Analysis code.R" is the main scheme R code to run the analyses and modeling. "Function code.R" contains the code for functions used in the "Analysis code.R"