## ----"r001"------------------------------------------------------------------- require("devRate") ## ----"r002", fig.width=7, fig.height=4---------------------------------------- temp <- stats::rnorm(n = 90*4, mean = 25, sd = 2) par(mar = c(4, 4, 0, 0)) plot( x = temp, type = "o", xlab = "Time (6 hours time step)", ylab = "Temperature", ylim = c(15, 35) ) ## ----"r003", fig.width=7, fig.height=4---------------------------------------- set.seed(1234) # Using Bartekova and Praslicka, 2006 model my_model <- ha_bartekova2006() # This model was designed for eggs, larvae and pupae, using simple linear # regression models (following Campbell 1974). forecastX <- devRateIBMparam( tempTS = temp, # the temperature time series described above timeStepTS = 1/4, # we have 4 temperature values per day (every 6 hours) eq = list("campbell_74", "campbell_74", "campbell_74"), # the model eq for # the three life stages myParam = list( my_model[["model"]]$pupa, # starting with pupae my_model[["model"]]$egg, # then adults and eggs my_model[["model"]]$larva # then larvae and the cycle goes on ), adultLifeStage = 1, # adult life stage after the first model step (pupae # to adults) timeLayEggs = 10, # adults longevity fixed to 10 days numInd = 10, # 10 individuals for the simulation stocha = 0.05 # a bit of intra-population variability ) ## ----"r004", fig.width=7, fig.height=4---------------------------------------- sim01 <- forecastX[[1]] hist( -999, # empty histogram xlim = c(0, max(sim01)), ylim = c(0, nrow(sim01)), xlab = "Time", ylab = "Number of individuals", axes = FALSE, main = "" ) axis(1) axis(2, las = 1) cycleLabels <- rep(c("adults", "larvae", "pupae"), 10) trash <- lapply(1:ncol(sim01), function(i){ hist(sim01[,i], add = TRUE) text( x = mean(sim01[,i]), y = max(table(sim01[,i])), labels = colnames(sim01)[i], pos = 2 ) text( x = mean(sim01[,i]), y = max(table(sim01[,i]))+1, labels = cycleLabels[i], pos = 2 ) }) ## ----"r005", fig.width=7, fig.height=4---------------------------------------- set.seed(1234) my_model01 <- ha_bartekova2006(plotfig = FALSE) my_model02 <- ha_mironidis2008_nls(plotfig = FALSE) my_model03 <- ha_foley1981(plotfig = FALSE) forecastX <- devRateIBMparam( tempTS = temp, # the temperature time series described above timeStepTS = 1/4, # we have 4 temperature values per day (every 6 hours) eq = rep(list( "campbell_74", "campbell_74", "lactin2_95" ), 3), # the model eq for # the three life stages myParam = list( my_model03[["model"]]$diapausingpupae, # starting with diapausing pupae (Foley 1981) my_model01[["model"]]$egg, # then adults and eggs (Bartekova 2006) my_model02[["model"]]$larva, # then larvae (Mironidis 2008) my_model03[["model"]]$nondiapausingpupae, # pupae G2 (Foley 1981) my_model01[["model"]]$egg, my_model02[["model"]]$larva, my_model03[["model"]]$nondiapausingpupae, my_model01[["model"]]$egg, my_model02[["model"]]$larva ), adultLifeStage = 1, # adult life stage after the first model step (pupae # to adults) timeLayEggs = 10, # adults longevity fixed to 10 days numInd = 10, # 10 individuals for the simulation stocha = 0.05 # a bit of intra-population variability ) ## ----"r006", fig.width=7, fig.height=4---------------------------------------- sim02 <- forecastX[[1]] hist( -999, # empty histogram xlim = c(0, max(sim02)), ylim = c(0, nrow(sim02)), xlab = "Time", ylab = "Number of individuals", axes = FALSE, main = "" ) axis(1) axis(2, las = 1) cycleLabels <- rep(c("adults", "larvae", "pupae"), 10) trash <- lapply(1:ncol(sim02), function(i){ hist(sim02[,i], add = TRUE) text( x = mean(sim02[,i]), y = max(table(sim02[,i])), labels = colnames(sim02)[i], pos = 2 ) text( x = mean(sim02[,i]), y = max(table(sim02[,i]))+1, labels = cycleLabels[i], pos = 2 ) }) ## ----"r007", fig.width=7, fig.height=4---------------------------------------- # results of simulations using model 1 apply(sim01, MARGIN = 2, FUN = summary) # results of simulations using model 2 apply(sim02, MARGIN = 2, FUN = summary)