Springtails measured traits

Collected data on offspring from field collected spingtails, at two temperatures. Column headings: familie = family of sibs from same egg batch, location = origin of original population, either Kampina nature reserve (k) or Hilversumse heide nature reserve (h), ecotype = forest (f) or heath (h), temp = temperature at which eggs were placed (12 or 22 C), time = age at maturity in days, sex = sex of individual (m= male or f= female), mass = mass at maturity in ug, rate = growth rate ug/days, lnmass/lnrate/lntime = natural logarithm of the traits mass, rate and time as used in random regression model.