Alanine, Collembola, Desiccation tolerance, Drought, Osmotic pressure, Compatible osmolytes, Polymers - analysis, Osmoregulation - physiology, Alanine - metabolism, Permeability, Adaptation, Biological - physiology, Amino Acids - metabolism, Animals, Analysis of Variance, Droughts, Survival Analysis, Denmark, Insecta - physiology, Carbohydrates - analysis, D...