EFFECTS OF BROOD SIZE AND AGE ON SURVIVAL OF FEMALE WOOD DUCKS

被引：15

作者：

ROHWER, FC ^{[1
]}

HEUSMANN, HW ^{[1
]}

机构：

[1] DIV FISHERIES & WILDLIFE,WESTBOROUGH,MA 01581

来源：

CONDOR | 1991年 / 93卷 / 04期

关键词：

AGE-SPECIFIC SURVIVAL; BROOD SIZE; CLUTCH SIZE; INTRASPECIFIC NEST PARASITISM; REPRODUCTIVE EFFORT; WOOD DUCK; AIX-SPONSA;

D O I：

10.2307/3247716

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

During a 13-year study of Wood Ducks (Aix sponsa) nesting in eastern Massachusetts, 43.3% of nests were parasitized by conspecifics. Early season nests were more frequently parasitized than were late nests. First-nesting females were less frequently parasitized than experienced breeders, partially because first-nesting females nest later in the season when parasitism declines. Nest parasitism created clutch size variation that allowed us to investigate the effect of clutch size and brood size on survival of Wood Ducks. Females that hatched large broods had a minor delay in nesting the following year. Brood size had no influence on the survival rate of female Wood Ducks. Survival rates averaged 52.8% over all year and age classes. Survival rates declined by 6.1 % per year of breeding experience.

引用

页码：817 / 824

页数：8

共 74 条

[1] SURVIVAL OF THE KITTIWAKE IN RELATION TO SEX, YEAR, BREEDING EXPERIENCE AND POSITION IN THE COLONY [J].