Don't judge species on their origins E. Lugo Ariel, John J. Ewel, A. Davis Mark, K. Chew Matthew, J. Hobbs Richard in Nature (09 June 2011) Journal Article 1 biology ecology invasive species policy species zoology
Gaia: A New Look at Life on Earth James Lovelock in Oxford University Press, USA (2000-11-23) Book 10 earth ecology environmentalism evolution gaia
