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It has been suggested that structural ultraviolet (UV) patches on the wings of butterflies play a role in sexual selection. UV patches may be condition-dependent signals of mate quality. In the current study, we investigated associations between the morphological properties of two male wing patterns (one signalling and one non-signalling trait) and between these patterns and various environmental...
The subject of our investigation was the visual features of wing color with special focus on the UV reflectance in the green‐veined white butterfly (Pieris napi). Previous studies had concluded that UV reflectance on dorsal wing surfaces is found only in the female P. napi. Based on UV sensitive photography, we analyzed a correlation between 12 geographic and environmental factors and UV reflectance...
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