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OBSERVED AND SIMULATED CHANGES IN GENETIC QUALITY IN NATURAL POPULATIONS OF HYPHANTRIA CUNEA

Published online by Cambridge University Press:  31 May 2012

R. F. Morris
R. F. Morris
Affiliation:
Forest Research Laboratory, Department of Fisheries and Forestry, Fredericton, New Brunswick
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Abstract

Annual changes in genetic quality were measured in natural populations of Hyphantria cunea Drury for 12 years in New Brunswick and Nova Scotia. Models for heritability and natural selection pressure, derived independently from experimental data, are used to simulate the changes in quality over the same period. In seven of eight areas, observed and simulated trends are significantly correlated. Regressions between observed and calculated values, examined with respect to both means and slopes, suggest how these preliminary models may be refined. The influence of genetic changes on the natural regulation of population density is discussed briefly, but analysis is deferred to a later paper in this series on H. cunea.

Type
Articles
Information
The Canadian Entomologist , Volume 103 , Issue 6 , June 1971 , pp. 893 - 906
Copyright
Copyright © Entomological Society of Canada 1971

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References

Morris, R. F. 1967. Factors inducing diapause in Hyphantria cunea. Can. Ent. 99: 522–529.CrossRefGoogle Scholar
Morris, R. F. and Bennett, C. W.. 1967. Seasonal population trends and extensive census methods for Hyphantria cunea. Can. Ent. 99: 9–17.Google Scholar
Morris, R. F. and Fulton, W. C.. 1970 a. Models for the development and survival of Hyphantria cunea in relation to temperature and humidity. Mem. ent. Soc. Can., No. 70.Google Scholar
Morris, R. F. 1970 b. Heritability of diapause intensity in Hyphantria cunea and correlated fitness responses. Can. Ent. 102: 927–938.CrossRefGoogle Scholar