Rejection of artificial parasite eggs by Gray Kingbirds in the Bahamas

被引：9

作者：

Baltz, ME ^{[1
]}

Burhans, DE

机构：

[1] Univ Missouri, Div Biol Sci, Columbia, MO 65211 USA

[2] Univ Missouri, N Cent Res Stn, Columbia, MO 65211 USA

来源：

CONDOR | 1998年 / 100卷 / 03期

关键词：

brood parasitism; egg ejection; Gray Kingbird; Molothrus bonariensis; Shiny Cowbird; Tyrannus dominicensis;

D O I：

10.2307/1369727

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

We added artificial Shiny Cowbird (Molothrus bonariensis) eggs to Gray Kingbird (Tyrannus dominicensis) nests in the Bahamas, where Shiny Cowbirds were first recorded in 1993. Gray Kingbirds ejected 85% of artificial eggs within 48 hr of addition. Based upon the short time of contact between the two species, we suggest that egg ejection by Gray Kingbirds in the Bahamas is retention of ejection behavior from ancestral populations.

引用

页码：566 / 568

页数：3

共 20 条

[1] First records of the Shiny Cowbird (Molothrus bonariensis) in the Bahama Archipelago [J].