Year 11 Biology Field Study at Camp Kedron

Last Friday, June 26th, Year 11 Biology students travelled to Camp Kedron, located within Ku-ring-gai Chase National Park, for an immersive fieldwork excursion.

The day provided students with a valuable opportunity to translate classroom theory into practical, hands-on scientific inquiry. A Tale of Two Ecosystems: The Ridge vs. The Valley: Students spent the day investigating how abiotic factors (non-living elements) shape biotic factors (living communities). By comparing two distinct environments, the exposed Ridge and the sheltered Valley, students established quadrats to sample the distribution of species and used specialised equipment to measure first-hand water and soil pH, soil depth, moisture levels, and tree heights.

Armed with dichotomous keys, the Biologists also put their classification skills to the test, identifying the unique tree species that call the Hawkesbury Sandstone Ecosystem home. Creek Critters and Animal & Plant Adaptations: Down at the creek, students waded in to test water quality and biodiversity by catching and identifying local macroinvertebrates.

The team successfully spotted water striders, damselfly and dragonfly nymphs and whirligig beetles. To wrap up the field study, students examined the fascinating, specialized adaptations that allow organisms like the freshwater crayfish and the hardy Black Sheoak to thrive in these specific environments. Despite the light drizzle on a cold day and the muddy terrain, the students braved the elements with great team spirit and a commendable commitment to their biological studies.