Ecology BIOL 2050 Lab 3 - Insect Abundance and Diversity (Dataset 1)

Group members: Kamil Adamczewski, Joelle Brooker, Brittney Jorisch, Karin Yosefi. Data for this experiment was collected at Danby's grassland and woodlot near York University on October 1, 2015 between 3:15pm and 3:38pm. The weather was sunny, mostly clear skies, and breezy with a temperature of 15 degrees Celcius. For this experiment, a 1 metre by 1 metre quadrat was used to sample the abundance and diversity of insects at both sites. The quadrat was thrown 10 times at each site for a total of 20 times (n=20). It was randomly thrown, there was no specific preference in throwing the quadrat in certain places. After throwing the quadrat, group members waited 1 minute to let the site that is being studied become stabilized. Then, the abundance of insects inside were visually estimated. Also, recognizable taxonomic units of the insects were accounted for by visually noticing any differences in structural features such as wing type, body type and colour. Since it was a cold day (15 degrees Celcius), not much insects were observed, thus the data collected was quite low. The purpose for collecting this data was to determine a correlation between the abundance of organisms in a defined area with the amount of diversity present.项目组成员：卡米尔·亚当切夫斯基（Kamil Adamczewski）、乔尔·布鲁克（Joelle Brooker）、布里特尼·约里施（Brittney Jorisch）、卡琳·约塞菲（Karin Yosefi）。本实验数据采集于2015年10月1日15:15至15:38，采集地点为约克大学（York University）附近的丹比草地与林地。当日天气晴朗，天空整体澄澈，伴有微风，气温为15摄氏度。本次实验采用1米×1米样方（quadrat）对两处样地的昆虫丰度与多样性开展采样：每个样地抛掷样方10次，总采样次数为20次（n=20）。样方抛掷为随机操作，未对特定区域存在偏好性。完成样方抛掷后，项目组成员需静置1分钟，使待研究样地的昆虫群落趋于稳定，随后通过目视估算样方内的昆虫丰度。同时通过目视观察昆虫的翅型、体型、体色等结构特征差异，统计可识别的昆虫分类单元（taxonomic unit）。由于当日气温仅15摄氏度，环境偏低温，观测到的昆虫数量较少，因此采集到的数据量相对有限。本次数据采集的核心目的为探究限定区域内生物丰度与物种多样性之间的相关性。