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首页> 外文期刊>Behaviour >Two pieces of information in a single trait? The yellow breast of the great tit (Parus major) reflects both pigment acquisition and body conditio
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Two pieces of information in a single trait? The yellow breast of the great tit (Parus major) reflects both pigment acquisition and body conditio

机译：同一性状中的两个信息？大山雀（大山雀）的黄色乳房反映了色素的获取和身体状况

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Carotenoid-based plumage coloration has been shown to be dependent both on pigment content and feather structure. Against this background, we predict a relationship between feather pigment content and plumage hue. Furthermore, given the susceptibility of chroma to developmental perturbation of feather structure, we predict body condition to be related to chroma. We tested these predictions in the great tit, Parus major. Carotenoid content in yellow breast feathers was analysed by high-performance liquid chromatography (HPLC). Lutein was the main carotenoid contained in great tit feathers, followed by zeaxanthin. The hue of the feathers was accurately predicted from their lutein concentration, and chroma was predicted from the body condition value. Our data suggest that plumage coloration in the great tit could independently provide information on the ability of the signaller to collect carotenoids (via hue) and body condition (via chroma). Published results both from the great tit and other species support this view.
机译：已经显示基于类胡萝卜素的羽毛着色既取决于颜料含量又取决于羽毛结构。在这种背景下，我们预测羽毛色素含量和羽毛色调之间的关系。此外，考虑到色度对羽毛结构发育扰动的敏感性，我们预测身体状况与色度有关。我们在大山雀Parus major中测试了这些预测。通过高效液相色谱（HPLC）分析黄色胸羽中的类胡萝卜素含量。叶黄素是山雀羽毛中主要的类胡萝卜素，其次是玉米黄质。从叶黄素浓度可准确预测羽毛的色相，从身体状况值可预测色度。我们的数据表明，大山雀中的羽毛着色可以独立提供有关信号器收集类胡萝卜素（通过色相）和身体状况（通过色度）的能力的信息。大山雀和其他物种的已发表结果均支持这一观点。

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