Implications of tick size on the quantifications of engorgement in female Dermacentor variabilis.

摘要: Log-log plots of unfed and fed tick weight on corresponding values the scutal index (SI = length x width) show similar slopes for female D. variabilis from two laboratory populations. As derived these plots, relative engorgement state a at any time during feeding can be expressed as ratio cube roote to square root (RES W1/3 divided by SI 1/2), where serves an independent measure size. After specified periods, mean population fed-weights are not statistically different, but differences between RES ratios highly significant. When is used covariate, also Tests log-fed-weight that effects individual rabbit hosts performance significant, statistic associated with means higher than means. We conclude in behaviors measured more sensitively weights.