The flower visiting activities of the Danaidae butterflies : (2) Daily activity patterns of Idea leuconoe and Anosia genutia with environmental factors in butterfly house

Abstract

Relationship between flower visiting activity and environmental factors in the Danaidae butterflies was investigated in the butterfly house. The flower visiting activities of Idea leuconoe showed two peaks in the morning and afternoon on a fine day. But on a cloudy day, their activities showed a unimodal peak at noon. These results suggest that their activities were depressed by high temperature. In Anosia genutia, the flower visiting activities were not depressed by high temperature on a fine day. But, their activities were more depressed by low light intensity and low temperature than in I. leuconoe on a cloudy day.