Ecology Lab 3 Dataset 1

Group members: Harshvir Hehar, Amrutha Balamurgan, Olivia Kazmierczak, Adilah Ismail. This study took place at the Woodlots and Grasslands in York University. The temperature outside was around 15 C but it was quite sunny. The cold temperatures influenced our data significantly. Since it was so cold outside we were not able to see that many organisms. So our abundance was quite low on the organisms. Also we might not have been able to see a lot of the organisms as they could be embedded in the dirt. The sampling size of this study was 20 quadrats in total. The quadrats were randomly set up in both these sites. This data was collected by setting up ten quadrats in the Woodlot and the other ten were set up in the Grassland. The quadrats were randomly set up in these sites. Some of the places where the quadrats were set up it was shady, some places were sunny, or the ground was moist in some cases. In the woodlots the quadrats that were set up had a lot of leaves and garbage in it. In the Grasslands the quadrats had a lot of grass in it. The quadrats were observed in pairs for a time of 1 minute (timed with a stop watch) per each quadrat. In this minute any organism that was spotted was recorded. We recorded any organism that was in the quadrat or that came into the quadrat in that 1 minute time. The purpose of this study was to collect data on the living organisms that were seen in the quadrats at different sites and determine the abundance and RTU of the observed species and compare the results.

研究团队成员：Harshvir Hehar、Amrutha Balamurgan、Olivia Kazmierczak、Adilah Ismail。本研究在约克大学（York University）的林地与草地样地中开展。当日户外气温约15摄氏度，天气晴朗，低温对本次采集的数据造成了显著影响。由于户外气温偏低，我们仅能观测到少量生物，因此本次研究的生物个体丰度较低。此外，部分生物可能藏匿于土壤基质中，导致我们未能完全检出所有类群。本研究共设置20个样方（quadrats）作为采样单元，所有样方均在两类样地中随机布设：林地样地布设10个，草地样地布设10个。样方布设点位存在环境异质性：部分区域处于荫蔽环境，部分区域为光照充足的开阔地带，部分样地土壤湿度偏高。林地样地的布设样方内可见大量落叶与杂物，草地样地的布设样方内则覆盖有大量草本植被。观测以成对样方为批次开展，每个样方的观测时长为1分钟，使用秒表计时。在该1分钟观测窗口内，所有被观测到的生物均予以记录，包括原本处于样方内以及在观测时段内进入样方的生物。本研究的目的为采集不同样地内样方观测到的活体生物数据，测定观测物种的个体丰度与可识别分类单元（Recognizable Taxonomic Unit，RTU）数量，并对两类样地的观测结果进行对比分析。