In our final Science and Knowledge webinar for 2025, Professor Mike Letnic will share an overview of his research and findings on the topic of whether grazing by kangaroos disrupt the flow of food resources through brown food webs in arid environments.

The "brown food web" refers to the network of organisms that consume dead organic matter, which includes dead plants, animals, and waste. It is a decomposer-based food chain that contrasts with the "green food web," which is based on living plants and algae. Brown food webs are crucial for recycling nutrients, as they provide energy to a wide range of organisms like microbes, fungi, and scavengers that are a food source for other animals.