matplot(x = 0:(nrow(pop)-1), pop, type = "l", xlab = "Tempo", ylab = "Número de indivíduos", lty = 2, lwd = 2, col = c("red", "blue", "green"), cex.lab = 1.2, cex.axis = 1.2, las = 1)
legend("topleft", legend = colnames(pop), bty = "n", lty = 1, col = c("red", "blue", "green"))