This volume of Field Studies in Ecology presents work that was completed during three Field Studies in Functional Ecology courses: 2017 at the Daintree Rainforest Observatory in Cape Tribulation, Queensland, Australia; July 2018 at Bukit Timah Nature Reserve, Singapore; and December 2018 at Charlotte Pass, NSW in Kosciuszko National Park in the Australian Alps. Students were undergraduates at the time the experiments were conducted.