Ant-Plant Mecocosms at University of Toronto Field Station, Jokers Hill (image) University of Toronto Share Print E-Mail Caption Plastic children's swimming pools filled with soil containing artificial communities of common native plants, an invasive plant and colonies of either invasive European fire ants or native woodland ants. Credit K.M. Prior Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.