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Growth patterns of the ladybird (Harmonia axyridis Pallas) relative to variations in population genetics

Published online by Cambridge University Press:  08 April 2017

R. P. Kuang  and
N. N. Xiao
R. P. Kuang
Affiliation:
Kunming Institute of Zoology, Academia Sinica, Kunming, 650223, P. R. China
N. N. Xiao
Affiliation:
Kunming Institute of Zoology, Academia Sinica, Kunming, 650223, P. R. China
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Abstract

Differences in population growth among four variation types of the ladybird beetle, Harmonia axyridis Pallas, namely succinea, conspicua, spectabilis and aulica, were investigated using various growth parameters. The variation types showed three growth patterns from the intrinsic growth rates (rm), with rates of 0.093–0.099 (for conspicua and aulica), 0.073 (for succinea) and 0.040 (for spectabilis). The growth rates of these patterns were realised in different ways. Spectabilis differed from the other three types in the age and per cent distribution of the specific period to the rm values.

Résumé

Des différences dans la croissance de population parmi 4 types de variétés chez la coccinelle, Harmonia axyridis Pallas, a savoir succinea, conspicua, spectalis et aulica ont été étudiées au moyen de divers paramètres de croissance. Les types de variétés ont montré 3 formes de croissance du point de vue taux de croissance intrinsèque (rm), la lère avec un taux de 0,093–0,099 chez conspicua et aulica, une autre avec un taux de 0,073 chez succinea et l'autre de 0,040 pour spectabilis. Les taux de croissance chez ces formes ont été accomplis de diverses manières. En outre, spectabilis a différé des trois autres formes sur la distribution d'âge et le pourcentage de la période spécifique par rapport aux valeurs de rm.

Keywords

Harmonia axyridisgenetic variationgrowth patternsHarmonia axyridisvariation génétiqueforme de croissance
Type
Research Articles
Information
International Journal of Tropical Insect Science , Volume 16 , Issue 1 , March 1995 , pp. 35 - 38
Copyright
Copyright © ICIPE 1995

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