Sexual dichromatism and male colour morph in ultraviolet-B reflectance in two populations of the jumping spider Phintella vittata (Araneae: Salticidae) from tropical China
Sexual dichromatism and male colour morph in ultraviolet-B reflectance in two populations of the jumping spider Phintella vittata (Araneae: Salticidae) from tropical China
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DOI：
10.1111/j.1095-8312.2008.00968.x
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发表时间：
2008-05-01
影响因子：
1.9
通讯作者：
Li, Daiqin
中科院分区：
文献类型：
--
作者：
Li, Jingjing;Lim, Matthew L. M.;Li, Daiqin
在关于动物使用紫外线（UV）视觉和UV反射的文献中，通常考虑的是UV-A（315-400 nm）。通常认为动物无法区分UV-B（280-315 nm）和自然阳光中的其他波长。近年来，一些动物被发现能够直接探测到UV-B并对其做出反应，以避免暴露于UV-B中。然而，没有证据表明UV-B对应的色调对动物在种内交流中是显著的。以中国两个不同地理种群的花跳蛛Phintella vittata为材料，研究了其紫外反射率的地理、性间、性内和种群间变异。结果表明，无论是雄性还是雌性，沙冬青对紫外光都有反射，且反射带位于UV-B波段，这是以前从未研究过的反射光谱的一部分。我们还发现了大量的人口变化的UV-B光谱反射率。此外，两种颜色的变体，“绿色”和“黄色”的变体，确定为成年男性的两个人口，和这两种变体有很大的不同，在紫外线-B和人类可见波长。这是第一次展示了UV-B反射跳盐和UV-B性二色性。(C)2008年，伦敦林奈学会。
In the literature on animal use of ultraviolet (UV) vision and UV reflectance, it has usually been UV-A (315-400 nm) that is considered. Animals are generally assumed to be unable to discriminate UV-B (280-315 nm) from other wavelengths in natural sunlight. Recently, some animals are known to be able to detect and respond directly to UV-B in order to avoiding exposure to it. However, there is no evidence that the hue corresponding to UV-B is salient to an animal during intraspecies communication. Using Phintella vittata, an ornate jumping spider from two geographically different populations in China, we investigated geographical, intersexual, intrasexual, and interpopulation variation in UV reflectance. We found that both the males and the females of P. vittata reflect UV light, and that the reflection bands are located in UV-B, a part of reflectance spectrum never previously investigated. We also found a great deal of population variation in the UV-B spectral reflectance. Furthermore, two colour morphs, the 'green' and 'yellow' morphs, are identified for adult males for both populations, and both morphs differ greatly in both UV-B and human-visible wavelengths. This is the first demonstration of a UV-B reflecting salticid and UV-B sexual dichromatism. (C) 2008 The Linnean Society of London.