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Facebook Live – Our changing understanding of ecosystems

Wednesday, June 10, 2020 | 1:00 pm 2:00 pm


Remember the old food chain that you learned about in school? Tree > Deer > Wolf. From that chain you’re taught more wolves equal less deer, less deer equal more trees, and so on.

But that isn’t necessarily so. Our world is changing, and we’re trying to keep pace with new ways of thinking about the natural world. The Theory of Trophic Cascades is a recent example that explains much, but like all theories, has both supporters and critics. The theory essentially asks, “what happens if you add a new top predator to the food chain?”

It’s not a hypothetical question. It’s already happened in Yellowstone, in Algonquin Park, and here in Mississauga. In this presentation, Dave Taylor will explore the impact new top predators have on local ecosystems, and on continents. Understanding how nature works is more important than ever as we deal with the impact of climate change, COVID-19, and new invasive plants and diseases.

* NOTE: You don’t need a Facebook account to watch the presentation, but you will need an account to ask questions.

Join the broadcast live on Facebook.