THE IMPACT OF PREDATION BY RED-WINGED BLACKBIRDS ON EUROPEAN CORN-BORER POPULATIONS

被引：14

作者：

BENDELL, BE

WEATHERHEAD, PJ

STEWART, RK

机构：

[1] MCGILL UNIV, MACDONALD COLL, DEPT ENTOMOL, ST ANNE DE BELLEVUE H0A 1C0, QUEBEC, CANADA

[2] MCGILL UNIV, MACDONALD COLL, DEPT RENEWABLE RESOURCES, ST ANNE DE BELLEVUE H0A 1C0, QUEBEC, CANADA

来源：

CANADIAN JOURNAL OF ZOOLOGY | 1981年 / 59卷 / 08期

关键词：

D O I：

10.1139/z81-208

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

Population estimates of the European corn borer (O. nubilalis Lepidoptera: Pyralidae) were significantly positively correlated with distance from a blackbird roost near Beauharnois, Quebec [Canada]. Gullet contents of male red-winged blackbirds (A. phoeniceus) indicated that corn borers were consumed, particularly in the late fall. This predation appears responsible for lowering corn borer populations in standing corn the following year. The benefit provided by red-winged blackbirds through predation on corn borers compensated for .apprx. 20% of the damage the birds did to standing corn.

引用

页码：1535 / 1538

页数：4

共 30 条

[1]

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[2]

Barber G. W., 1925, Psyche Boston Mass, V32, P30, DOI 10.1155/1925/69305

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