Impact of Location on Animal Abundance and Diversity

Method, pan trap data set: This experiment was conducted with Setareh Rezvani on a slightly rainy day with a climate of 16° at the grasslands and woodlots area at Saywell Woods at York University on Monday September 25, 2016 at approximately 3:00 PM. 20 solo bowls were obtained, 10 of which were white, and the remaining 10 were blue. 5 blue bowls and 5 white bowls were placed in the grassland; the white bowls were placed near areas with many flowers whereas the blue bowls were placed in areas with just grass. 5 blue bowls and 5 white bowls were placed in the woodlot; the white bowls were placed near the trees whereas the blue bowls were placed away from the trees. All 20 solo bowls were filled with soapy water and were left for approximately 2.5 hours. After 2.5 hours subsided, the number of animals and the number of rtus (recognizable taxonomic units) were obtained for each bowl. Metadata:Colour of bowl is a categorical variable that provides the different colour solo bowls used in the experiment. The solo bowls were blue and white.RTUs (recognizable taxonomic units) is a continuous variable that provides the different types of insects found in each sample.# of insects is a continuous variable that provides the total number of insects found in each sample.Hypothesis: There will be a higher abundance and diversity of animals found in the grasslands than woodlots because there are more flowering plants in the grasslots, where more animals reside and some animals are more attracted to because of pollination. Prediction: The most number of animals and rtus will be found in the white bowls in the grassland because they are located nearest to the flowering plants. The second highest number of animals and rtus will be found in the blue bowls in the grassland because the flowering plants are still somewhat nearby and insects still reside in the general area. The least number of animals and rtus will be found in the blue bowls in the woodlots because they are located away from the trees and there are fewer flowering plants in the woodlots.

方法：色盘诱捕数据集（pan trap dataset）：本实验与Setareh Rezvani合作完成，于2016年9月25日周一下午约3时，在约克大学赛威尔森林（Saywell Woods）的草原与林地片区开展，当日天气微雨，气温16℃。共制备20个独立诱捕碗，其中10个为白色，剩余10个为蓝色。在草原区域布设5个蓝色诱捕碗与5个白色诱捕碗：白色诱捕碗设置于多花区域附近，蓝色诱捕碗则仅设置于纯草地区域。在林地片区同样布设5个蓝色诱捕碗与5个白色诱捕碗：白色诱捕碗设置于树木周边，蓝色诱捕碗则设置于远离树木的区域。所有20个诱捕碗均注入肥皂水，静置约2.5小时。静置结束后，统计每个诱捕碗内的动物个体数与可识别分类单元（recognizable taxonomic units, RTUs）数量。元数据：诱捕碗颜色为分类变量，对应实验中使用的两类诱捕碗颜色，本次实验仅采用蓝色与白色。可识别分类单元（RTUs）为连续变量，代表每个样本中发现的昆虫类群类型。昆虫个体数为连续变量，代表每个样本中发现的昆虫总数量。实验假设：相较于林地片区，草原片区发现的动物丰度与多样性更高，原因在于草原片区开花植物更多，可为更多动物提供栖息环境，且部分动物因传粉需求更易被开花植物吸引。实验预测：草原片区的白色诱捕碗中可捕获最多数量的动物与可识别分类单元，因其紧邻开花植物区域。草原片区的蓝色诱捕碗将位列第二，因其所在区域仍邻近开花植物，昆虫仍栖息于该一般区域。林地片区的蓝色诱捕碗将捕获最少数量的动物与可识别分类单元，因其设置于远离树木的区域，且林地内开花植物数量更少。