Why is biodiversity in Ontario at greater risk in the south than the north?

Biodiversity in southern Ontario is at greater risk than in the north primarily due to higher population density, urban development, and agricultural practices, which lead to habitat destruction and fragmentation. The south also faces more invasive species and pollution pressures, exacerbated by industrial and agricultural runoff. In contrast, the northern regions tend to have less human activity and more intact natural habitats, which helps preserve their biodiversity. Climate change impacts are also more pronounced in the south, further threatening species and ecosystems.