Blocking of ultraviolet reflectance on bird eggs reduces nest predation by aerial predators

Blocking of ultraviolet reflectance on bird eggs reduces nest predation by aerial predators
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阻挡鸟蛋上的紫外线反射可减少空中捕食者对巢穴的捕食

DOI:
10.1007/s10336-015-1243-0
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发表时间:
2015
影响因子:
1.3
通讯作者:
Liang, Wei
Liang, Wei
中科院分区:
生物学3区
文献类型:
--
作者:
Yang, Canchao;Wang, Jiajia;Liang, Wei

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紫外线(UV)的视觉敏感性在动物界中广泛存在,并发生在所有主要的分类群体中,包括鸟类,它们拥有对紫外线敏感的光感受器,因此可以感知紫外线,并将其用于食物选择,配偶选择,后代护理和鸡蛋辨别。然而,没有研究已经进行,以阐明是否鸟类(空中捕食者)可以检测巢的紫外光反射的鸡蛋。在本研究中,我们进行了人工树巢实验中,对鸽子蛋进行处理,无论是紫外线阻断剂或控制物质,然后暴露于巢捕食者在热带森林。结果表明,随着暴露时间的增加,巢捕食增加,并阻止卵的紫外反射率可以显着减少巢捕食树巢。这为巢捕食风险与UV反射率有关提供了实验证据,并意味着空中巢捕食者可以通过卵的UV反射率来检测巢。
Visual sensitivity in ultraviolet (UV) light is widespread in the animal kingdom and occurs in all major taxonomic groups, including birds, which possess UV-sensitive photoreceptors and thus perceive UV light and use it in food selection, mate choice, offspring care and egg discrimination. However, no studies have been conducted to elucidate whether birds (aerial predators) could detect nests by UV light reflectance of eggs. In the present study, we performed artificial tree nest experiments in which pairs of pigeon eggs were treated with either a UV-blocker or a control substance before being exposed to nest predators in a tropical forest. The results showed that nest predation increased with duration of exposure, and that blocking UV reflectance of eggs could significantly reduce nest predation on tree nests. This provides experimental evidence for nest predation risk being linked to UV reflectance, and implies that aerial nest predators may detect nests by UV reflectance of eggs.
DOI: --
发表时间: 2014
影响因子: --
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