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The allocation process and between‐tree survival probabilities in Dendroctonus frontalis infestations
Author(s) -
Pope D. N.,
Coulson R. N.,
Fargo W. S.,
Gagne J. A.,
Kelly C. W.
Publication year - 1980
Publication title -
population ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 59
eISSN - 1438-390X
pISSN - 1438-3896
DOI - 10.1007/bf02530844
Subject(s) - biology , longevity , statistics , constant (computer programming) , population , tree (set theory) , biological system , mathematics , computer science , combinatorics , demography , genetics , sociology , programming language
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.