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Dispersal of an Insect Parasite Over a Small Plot1

Published online by Cambridge University Press:  31 May 2012

T. Burnett
T. Burnett
Affiliation:
Entomology Laboratory, Belleville, Ontario
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Extract

The relation of host density to reproduction of the chalcid parasite Dahlbominus fuscipennis (Zett.) was examined in a previous study (Burnett, 1954). When the parasite searched in a naturally varying physical environment for hosts–cocoons of sawflies that attack conifers–distributed over plots on a grass lawn, the influence of host density on parasitism was similar to that obtained in laboratory experiments. As the irregularities of the meteorological factors did not appreciably alter the relation of parasitism to host density it was of interest to determine whether the additional discontinuities of a natural environment would.

Type
Articles
Information
The Canadian Entomologist , Volume 90 , Issue 5 , May 1958 , pp. 279 - 283
Copyright
Copyright © Entomological Society of Canada 1958

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References

Burnett, T. 1951. Effects of temperature and host density on the rate of increase of an insect parasite. American Nat. 85: 337–352.CrossRefGoogle Scholar
Burnett, T. 1954. Influence of natural temperatures and controlled host densities on oviposition of an insect parasite. Physiol. zool. 27: 239–248.CrossRefGoogle Scholar
Reeks, W. A. 1953. The establishment of introduced parasites of the European spruce sawfly (Diprion hercyniae Htg.)) (Hymenoptera: Diprionidae) in the Maritime Provinces. Canadian J. Agr. Sci. 33: 405–429.Google Scholar
Snedecor, G. W. 1956. Statistical methods. 5th ed.The Iowa State College Press, Ames, Iowa.Google Scholar