Chromaticity as a signal of ripeness in fruits taken by primates.
Chromaticity as a signal of ripeness in fruits taken by primates.
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发表时间：
2000-07
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通讯作者：
Petroc Sumner;John D. Mollon
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作者：
Petroc Sumner;John D. Mollon
我们测量了黑猩猩和三种食果猴吃的许多水果样本的反射光谱。如果将果实绘制在适合卡他灵长类动物的颜色空间中，则可以明显看出几种不同的成熟模式。许多物种的成熟程度可以通过二色灵长类动物来辨别，但对于大多数水果来说，三色消费者将具有优势。然而，通过计算哪组可能的感光色素可以最大化每个水果物种样品之间的色距，我们表明灵长类动物长波长（L）和中波长（M）锥体色素的光谱位置并未针对此任务进行优化。
We have measured the reflectance spectra of many samples of fruit eaten by chimpanzees and three frugivorous monkey species. If the fruit are plotted in a colour space appropriate for catarrhine primates, several distinct ripening patterns are evident. The degree of ripeness of many species would be discernible by dichromatic primates, but for most fruit a trichromatic consumer would be at an advantage. However, by calculating which set of possible photopigments would maximise the chromatic distance between samples of each fruit species, we show that the spectral positions of the primate long- (L) and middle-wavelength (M) cone pigments are not optimised for this task.