Grassland Insect Count

The data for this lab was collected at York University's grassland at 3:00 P.M by Olivia Lazzaro. A 20 meter transect was layed out at the grassland and the observer walked along the transect using a sweep net to hit the plants that were passed in order to capture the insects flying in the air, or resting on the plant's leaves. It took 1 minute to walk along the 20 meter transect and once complete, the observer would hold the net up and count how many insects that were visibly caught in the net. In some cases the contense within the net were poured out slowly onto a blan piece of paper in order to identify the presence of smaller insects. Once the abundance of insects were recorded then the total number of difference species present were counted. These steps were repeated 10 times. This lab was conducted to determine approximately how many insects there are in the grassland and the number of different species present. The day the experiment was performed was sunny, without clowds and the temperature of the air was cool without a breeze. In addition, there were many birds present on the outskirts of the grassland.本实验数据集由Olivia Lazzaro于下午3时在约克大学（York University）的草地样地采集。研究人员在该样地布设了一条20米的样带（transect），沿样带行进时使用扫网（sweep net）拍打途经的植株，以捕捉飞行于空中或停留在植物叶片上的昆虫。走完该20米样带耗时1分钟，完成操作后，研究人员会举起扫网，统计网内可见的昆虫数量。部分场景下，会将网内的捕获物缓慢倾倒在空白（blank）白纸上，以便识别体型更小的昆虫。在记录下昆虫的种群丰度后，统计样地内现存的不同物种总数。上述实验步骤重复开展10次。本实验旨在估算该草地样地内的昆虫总数及其现存不同物种的数量。实验当日天气晴朗无云，气温凉爽且无微风。此外，草地边缘区域存在大量鸟类活动。