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Factors Influencing the Distribution of Overwintering Ambrosia Beetles, Trypodendron lineatum (Oliv.)1

Published online by Cambridge University Press:  31 May 2012

E. D. A. Dyer
Affiliation:
Forest Biology Laboratory, Victoria, B.C.
J. M. Kinghorn
Affiliation:
Forest Biology Laboratory, Victoria, B.C.

Extract

Previous work by Kinghorn and Chapman (1959) has shown that in coastal British Columbia, the ambrosia beetle Trypodendron lineatum hibernates in the forest litter or duff at various distances within forest edges in the vicinity of brood logs. It was pointed out that further study was required to determine the characteristics of the optimum hibernation sites. It was mentioned that stand density, shade, aspect, slope, and the nature of the duff might be factors controlling the selection of the place of hibernation. The base of trees and the relatively deeper duff, characteristic of this situation, was reported to be the location of the larger populations of hibernating beetles although the level of population was found to vary greatly both from tree to tree and in depth within different forest edges.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1961

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References

Chapman, J. A. 1960. The distribution of overwintering Trypodendron (Coleoptera, Scolytidae) around a single tree in relation to forest litter variability. Proc. Ent. Soc. of B. C. 57: 36.Google Scholar
Chapman, J. A. and Dyer, E. D. A.. 1960. Seasonal flight activity of the ambrosia beetle, Trypodendron lineatum (Oliv.), for 1959 near Parksville, B.C. Proc. Ent. Soc. of B.C. 57: 3033.Google Scholar
Chapman, J. A. and Kinghorn, J. M.. 1955. Window flight traps for insects. Can. Ent. 87: 4647.CrossRefGoogle Scholar
Chapman, J. A. and Kinghorn, J. M.. 1958. Studies of flight and attack activity of the ambrosia beetle, Trypodendron lineatimi (Oliv.), and other scolytids. Can. Ent. 90: 362372.CrossRefGoogle Scholar
Fye, R. E., McMillian, W. W., Walker, R. L. and Hopkins, A. R.. 1959. Distance into woods along a cotton field at which the boll weevil hibernates, J. Econ. Ent. 52: 310312.Google Scholar
Graham, K. 1959. Release by flight exercise of a chemotropic response from photopositive domination in a scolytid beetle. Nature 184: 283284.CrossRefGoogle Scholar
Hadom, C. 1933. Recherches sur la morphologie, les stades évolutifs et l'hivernage du bostryche liseré (Xyloterus lineatus Oliv.). Suppl. aux. org. de la Soc. forest. Suisse No. 11. Buchler and Co., Bern.Google Scholar
Kinghorn, J. M. and Chapman, J. A.. 1959. The overwintering of the ambrosia beetle Trypodendron lineatum (Oliv.). Forest Sci. 5: 8192.Google Scholar
Kinghorn, J. M. and Dyer, E. D. A.. 1960. Overwintering of ambrosia beetle. Canada Dept. Agr. For. Biol. Bi-monthly Prog. Rept. 16(1): 4.Google Scholar
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