Extreme ultraviolet sexual dimorphism in jumping spiders (Araneae: Salticidae)
Extreme ultraviolet sexual dimorphism in jumping spiders (Araneae: Salticidae)
复制标题
DOI：
10.1111/j.1095-8312.2006.00704.x
复制
发表时间：
2006-11-01
影响因子：
1.9
通讯作者：
Li, Daiqin
中科院分区：
文献类型：
--
作者：
Lim, Matthew L. M.;Li, Daiqin
跳蛛（跳蛛科）具有敏锐的视觉，视网膜中的一些细胞对紫外线（UV）光谱（< 400 nm）敏感。然而，没有任何研究记录了紫外线信号在跳盐藻中的应用。为了理解紫外视觉的功能，有必要描述跳海生物的紫外颜色。在本研究中，紫外线和人类可见光波长的热带华丽salticid蜘蛛，Cosmopyrumbratica，进行了分析，使用反射光谱法，以获得证据的性别特异性紫外线颜色。发现这种跳蛛的紫外线颜色具有绝对的两性异形，在种内相互作用过程中，雄性成虫的所有身体部位都能反射紫外线（300-400 nm），而雌性成虫和幼鱼的身体部位不反射紫外线。男性的紫外波段也有很大的差异。这是第一个完整的紫外线特征的salticid蜘蛛和第一个研究，以证明一个极端的性别紫外线二型性的跳蜘蛛。研究结果提供了证据，紫外线反射可能包括跳蛛重要的性信号。(c)2006年，伦敦林奈学会。
Jumping spiders (Salticidae) have acute vision with some cells in the retina that are sensitive to ultraviolet (UV) spectra (< 400 nm). However, no study has documented the use of UV signals in salticids. To appreciate the function of UV vision, it is necessary to characterize the UV colours of salticids. In the present study, the UV and human-visible wavelengths of a tropical ornate salticid spider, Cosmophasis umbratica, were analysed using reflectance spectrometry to obtain evidence of sex-specific UV colours. An absolute sexual dimorphism in the UV colours of this salticid species was found. All of the body parts of adult males that are displayed to conspecifics during intra-specific interactions reflected UV (300-400 nm) light, whereas the adult females and juveniles did not reflect UV light from any body part. A great deal of variation was also found in the UV wavebands among males. This is the first full UV characterization of a salticid spider and the first study to demonstrate an extreme sexual UV dimorphism in jumping spiders. The findings obtained provide evidence that UV reflectance may comprise important sexual signals in jumping spiders. (c) 2006 The Linnean Society of London.