Colour preference in Odontodactylus scyllarus (Linnaeus, 1758) (Stomatopoda)
Colour preference in Odontodactylus scyllarus (Linnaeus, 1758) (Stomatopoda)
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DOI：
10.1093/jcbiol/rux038
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发表时间：
2017-07-01
影响因子：
1.1
通讯作者：
Roberts, Nicholas W.
中科院分区：
文献类型：
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作者：
Daly, Ilse M.;Tetley, Anna E.;Roberts, Nicholas W.
口足类动物的生活方式非常活跃，包括仪式性的战斗、领土性和对活猎物的积极捕食。这种生活方式的适应包括强大的捕食附属物和非常复杂的视觉系统，包括12通道色觉和辨别光偏振的能力。其颜色视觉的神经处理尚未确定，尽管有一些证据表明口足类动物的颜色视觉系统是基于波长识别而不是光谱辨别。我们发现，Odontodactylus scyllarus有一个先天的偏好，反射波长在575 nm和600 nm之间（对应于人类的“黄色”）的物体。相比之下，他们对反射较短波长（525 nm至575 nm）（人类“绿色”）和较长波长（600 nm至650 nm）（人类“红色”）的物体的偏好降低。在波长偏好内，决策受到对象的对比度的影响，尽管在相同的波长间隔内反射，但选择指向对背景表现出更大韦伯对比度的对象的版本。至于其他动物，对反射特定波长的物体的先天偏好可能会增加幼稚动物的适应性。
Stomatopods engage in a highly dynamic lifestyle that includes ritual combat, territoriality, and active predation of live prey. Adaptations to this lifestyle include powerful raptorial appendages and an extraordinarily complex visual system, which includes 12-channel colour vision and the ability to discriminate the polarization of light. The neural processing underlying their colour vision has yet to be determined, though there is some evidence that the stomatopod colour vision system is based on wavelength recognition rather than spectral discrimination. We show that Odontodactylus scyllarus has an innate preference for objects that reflect wavelengths between 575 nm and 600 nm (corresponding to the human 'yellow'). Comparatively, they show a reduced preference for objects that reflect both at shorter wavelengths, between 525 nm and 575 nm (human 'green') and at longer wavelengths, between 600 nm and 650 nm (human 'red'). Within the wavelength preference, decisions are affected by the contrast of the object, with choice directed towards the version of the object that exhibited a greater Weber contrast against the background, despite reflecting in the same wavelength interval. As for other animals, the innate preference for objects reflecting particular wavelengths may act to increase the fitness of naive animals.