Exploring Biodiversity: IB DP Year 2 Biology Students Conduct Line Transect Activity

Recently, IB DP Year 2 biology students embarked on an exciting line transect activity on the new school field to study plant species and soil properties. This innovative method of identifying organisms within an ecosystem involves systematic sampling at regular intervals to observe and record biodiversity along a line.

Using a 10-meter rope, students examined organisms every 2 meters along the transect, identifying two plant species: Cornus serica L. and Cenchrus echinatus L.. Despite aiming to collect five soil samples for testing pH, salinity, and total dissolved solids (TDS), the experiment was interrupted by rain, limiting the collection to three samples. Another challenge was the presence of bricks in the soil, which prevented digging at one of the sites. In the lab, students measured TDS levels ranging from 18.2 to 22 ppm, salinity from 17 to 18, and pH between 7.63 and 7.68. This hands-on activity provided valuable insights into the local ecosystem within the school premises, despite the weather challenges.

Participating in this line transect activity equips students with practical skills and a deeper understanding of ecological research methods. These experiences are invaluable for future studies, as they foster critical thinking, data analysis, and problem-solving abilities. Moreover, students gain firsthand knowledge of environmental science, which can inspire further academic pursuits and careers in biology, ecology, and environmental conservation.

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