Collection of insects through coloured pan-trap method in woodlot and grassland area to determine correlation between colour and insect preferance of colour

After arriving at the Danby Woodlot, located on York University campus, I placed 9 bowls in the pattern of yellow, blue white, along a transect line, with a seperation of 1 meter between each bowl, at both areas of the Danby location: The grasslands and the woodlot. In the case of the grasslands, I placed the bowls along the border of the grassland-woodlot area. The grasses there was shorter on one side, and longer on the other side of the bowls. These bowls were placed at 3:08 PM. As for the woodllot, the bowls were placed near the left side of the woodlot area, along a transect line position chosen for it's relative abundance of vegetation. The same pattern of distribution was used:yellow, blue white, 1 meter apart. These bowls were placed at 3:13 PM. After 92 minutes, I returned to each location (4:40 PM- Grassland, 4:45 PM-Woodlot) and counted the insects that had been trapped within the bowls. colour of bowl, abundance of insects as well as number of RTU's and location was noted for each bowl. A seive and tweezers assisted in the counting of the insects. After this was completed, the bowls were emptied and removed from the Danby Woodlot. The day had winds of a 2 on the Beaufort scale, and the skies were cloudy. The temperature was relatively cool.

本实验选取约克大学校园内的丹比林地（Danby Woodlot）作为实验场地，在该场地的草原生境与林地生境两处区域均布设诱虫碗：沿样带（transect line）以黄、蓝、白的顺序摆放9个诱虫碗，相邻诱虫碗间距为1米。针对草原生境，诱虫碗布设位置选在草原-林地交界带，该区域中，诱虫碗一侧的草株更短，另一侧则更长。所有草原生境的诱虫碗于当日15:08完成布设。至于林地生境，诱虫碗布设于林地左侧区域，沿提前选定的植被相对茂密处的样带排布，同样采用黄、蓝、白的顺序摆放，间距1米，该区域的诱虫碗于15:13完成布设。布设完成92分钟后，实验人员分别于16:40（草原生境）与16:45（林地生境）返回各实验点位，统计诱虫碗内捕获的昆虫数量。统计过程中，需记录每个诱虫碗的颜色、昆虫丰度、RTU数量以及所在位置；实验过程中借助筛子与镊子辅助完成昆虫计数。全部统计工作完成后，清空诱虫碗并将其移出丹比林地。当日天气为多云，蒲福风力等级（Beaufort scale）为2级，气温相对偏低。