The allocation process and between‐tree survival probabilities in <i>Dendroctonus frontalis</i> infestations

Abstract

Conclusion We have presented two transfer functions for allocating populations of D. frontals adults in spots: a fixed probability TF and a time‐temperature dependent TF . Both procedures produced essentially equivalent results when applied to actual population measurements taken from spots. The time‐temperature TF was more realistic than the constant probability TF , but introduced an added source of variation into the transfer. Temperature was demonstrated to have a significant effect on adult longevity. The time‐temperature dependent TF provides a means of incorporating this important variable. the F 1 and F 2 values obtained from this time‐temperature dependent TF were also judged to be superior to the values obtained from the constant probability TF . Survival of reemerged and emerged beetles were shown to be cyclic and compensatory.