High Coordination and Equitable Parental Effort in the Rufous Hornero

The condor

Viviana Massoni¹ 

关键词: biparental effort;    coordinated behavior;    Furnarius rufus;    nesting success;    Rufous Hornero;   

DOI  :  10.1525/cond.2012.110135

学科分类：动物科学

来源: Central Ornithology Publication Office

【 摘 要 】

Abstract. In temperate regions of the Southern Hemisphere, avian parental care is understudied, in particular for the neotropical family Furnariidae. We measured rates of nest building, mud carrying, incubation, brooding, feeding, and nest-sanitation behaviors of molecularly sexed Rufous Horneros (Furnarius rufus) nesting in the humid pampas of Argentina. We also evaluated the coordination of all these behaviors between the partners, and compared the frequency of uncoordinated behaviors of each sex. Males and females worked equitably throughout the nesting cycle with few exceptions: (1) both sexes built the nest, but males supplied somewhat less mud at the beginning of nest construction, (2) though highly involved in incubating the eggs males did so slightly less often than females during early incubation, (3) even if males also brooded the nestlings, they brooded less often and for slightly briefer periods than did females, and (4) young nestlings were fed less often by males than by females. We found no...

【 授权许可】

CC BY