东部蓝鸟(sialia sialis)的巢址保真度取决于交替空腔的质量

IF 4.6 Q2 MATERIALS SCIENCE, BIOMATERIALS
M. Stanback, Ellen K. Rockwell
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引用次数: 34

摘要

摘要次生洞巢鸟在巢址质量下降的情况下,如巢物污染和寄生虫的积累等,会改变巢址。我们假设东部蓝鸟(Sialia sialis)的巢址转换不仅取决于原巢的条件,还取决于交替巢腔的质量。我们通过实验验证了这一假设,为东部蓝鸟提供了有吸引力和没有吸引力的巢箱(从选择实验中确定)。在一项实验中,蓝鸟被迫在它们喜欢的脏兮兮的盒子和不太喜欢的干净盒子之间做出选择。面对这个决定,很大比例的成对选择重复使用它们的巢腔,尽管这种选择的代价是体外寄生。当让他们在自己喜欢的脏兮兮的盒子和一个相同但干净的盒子之间做出选择时,有很大比例的人选择了干净的盒子,这表明脏兮兮的巢穴会带来一些成本。通过操纵箱型,我们能够分别减少和增加巢址保真度的成本。因此,蓝鸟并不是简单地根据经验法则“当巢穴质量低于x点时换巢”。相反,它们必须权衡当前巢穴质量的下降与所有其他可用巢穴的相对质量。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
NEST-SITE FIDELITY IN EASTERN BLUEBIRDS (SIALIA SIALIS) DEPENDS ON THE QUALITY OF ALTERNATE CAVITIES
Abstract Secondary cavity nesting birds have been predicted to switch their nesting location when the quality of the nest site declines such as from accumulation of soiled nest material and parasites. We hypothesized that nest-site switching in Eastern Bluebirds (Sialia sialis) should depend not only on the condition of the original nest, but also on quality of alternate nest cavities. We tested that hypothesis experimentally by providing Eastern Bluebirds with attractive and unattractive nest boxes (as determined from a choice experiment). In one experiment, bluebirds were forced to choose between their soiled box of the preferred type and a clean box of the less-preferred type. Faced with that decision, a significant proportion of pairs opted to reuse their nest cavity, despite the ectoparasitism costs of that option. When given the choice between their soiled box of the preferred type and an identical but clean box, a significant proportion switched to the clean box, which suggests that soiled nests present some cost. By manipulating box type, we were able to decrease and increase, respectively, the costs of nest-site fidelity. Thus, bluebirds do not simply operate under a rule of thumb “switch nest sites when nest quality falls below point x.” Rather, they must weigh the declining quality of their current nest against the relative quality of all other available nest sites.
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来源期刊
ACS Applied Bio Materials
ACS Applied Bio Materials Chemistry-Chemistry (all)
CiteScore
9.40
自引率
2.10%
发文量
464
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