TROPHIC REGULATION OF POST-DIAPAUSE OVARIOLE MATURATION IN COCCINELLA-SEPTEMPUNCTATA [COLEOPTERA COCCINELLIDAE]

被引：27

作者：

HONEK, A

机构：

[1] Research Institutes for Plant Production, Institute of Plant Protection, Praha 6, 161 06

来源：

ENTOMOPHAGA | 1978年 / 23卷 / 03期

关键词：

D O I：

10.1007/BF02373095

中图分类号：

Q96 [昆虫学];

学科分类号：

摘要：

In 1977 the vernal maturation of Coccinella septempunctata L. females was investigated in relation to the variation in aphid population density on alfalfa and cereals in central Bohemia. The ovarioles do not ripen unless the aphid population density reaches a certain threshold. This leads to considerable variability in the time of vernal reproductive activity (up to 1.5 months in the same geographic locality) among subpopulations living on crops with different aphid densities. This mechanism enables the reproduction of the aphidophagous insect to synchronize with the population development of the aphid. © 1978 Le François.

引用

页码：213 / 216

页数：4