Serious ethical questions about the antipathy toward nonnatives [species of plants and animals] arise because it parallels negative attitudes toward human immigrants...

I was surprised to find immigration politics and ideology entering into a short encyclopedic article on nonnative species. It is available for download under "[Non-Native Species (2014)](http://hettingern.people.cofc.edu/Hettinger_Nonnative_Species_2014_ESTE.pdf)" here at Ned Hettinger's homepage: http://hettingern.people.cofc.edu/ I appreciate some of Ned Hettinger's views on conservation.