Conclusion
We have presented two transfer functions for allocating populations ofD. frontals adults in spots: a fixed probabilityTF and a time-temperature dependentTF. Both procedures produced essentially equivalent results when applied to actual population measurements taken from spots. The time-temperatureTF was more realistic than the constant probabilityTF, but introduced an added source of variation into the transfer. Temperature was demonstrated to have a significant effect on adult longevity. The time-temperature dependentTF provides a means of incorporating this important variable. TheF1 andF2 values obtained from this time-temperature dependentTF were also judged to be superior to the values obtained from the constant probabilityTF. Survival of reemerged and emerged beetles were shown to be cyclic and compensatory.
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Texas Agricultural Experiment Station Paper No. TA 15523.
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Pope, D.N., Coulson, R.N., Fargo, W.S. et al. The allocation process and between-tree survival probabilities inDendroctonus frontalis infestations. Res Popul Ecol 22, 197–210 (1980). https://doi.org/10.1007/BF02530844
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DOI: https://doi.org/10.1007/BF02530844