Woodlot and Grassland Pan Traps in Danby Woods

The data was collected on 30 September, 2014, at around 4:00 PM. The location was the Danby Woods at the York University Campus (Keele location.) The weather at the time was roughly 18°C. Using the Beaufort Scale, the wind was determined to be calm throughout the experiment.(Source: https://weatherspark.com/averages/28179/9/30/Toronto-Ontario-Canada) For both the Grassland and Woodlot, 10 pans of varying colors were arranged in different layouts (based on color) in a straight line, with 1 feet between them (transect.) The layouts can be seen above. These pans were filled with soapy water to about half way of the pan. The soap allowed the water tension to be reduced, which allowed for insects to drown, as opposed to escape, due to the higher surface tension of water. Pans were allowed to sit for 1 hour, after which they were surveyed for their contents. Data regarding the number of species, the different species of insects and total number of insects were collected.数据采集于2014年9月30日约下午4时，地点为约克大学校园基尔校区的丹比树林。当时气温约18摄氏度，依据蒲福风级（Beaufort Scale）判定，实验全程风力均为无风状态。数据来源：https://weatherspark.com/averages/28179/9/30/Toronto-Ontario-Canada。针对草原与林地两种生境，研究人员按颜色差异设置10个不同颜色的托盘，以颜色为依据排布为不同布局并采用直线排列（样带法，transect），托盘间距为1英尺，排列布局如上图所示。托盘内注入约半容量的肥皂水：肥皂可降低水体表面张力，相较于纯水更高的表面张力，该处理可使落入其中的昆虫无法逃脱并溺亡。托盘静置1小时后，研究人员对其内的承载物开展调查，采集的数据涵盖昆虫物种数、不同昆虫种类以及昆虫总个体数。