Reptile species have a useful and important role in ecosystems. They help control the numbers of serious agricultural pests by consuming rodent and insect pests. Removal of any species from its ecosystem can drastically alter the populations of other organisms.
The forested slopes above the south branch of the Thames River were created at the end of the ice age through a glacial spillway through the Ingersoll moraine. According to a Natural Inventory in 1987 commissioned by the City of London, Upper Thames River Conservation Authority, McIIwraith Field Naturalists and the Urban League of London, Meadowlily Woods is one of the largest remaining settings in the area.
Meadowlily Woods is identified by the Ministry of Natural Resources of containing both Provincially Significant Wetlands and Habitant for Endangered Species. Meadowlily Woods has over 350 species of vascular plants that were recorded in 80 families.