I agree with Denvas, the Exotic Wildlife Association. They have a web page too. Order the book from them, or at least ask about it, its titled
Exotics on the Range: A Texas experiment. Its written by two PhDs who have done a lot of research with exotics.
Ask about seminars to go to, the annual meeting, etc. when you call or e-mail them. e-mail me, I might go with you.
Texas is the world headquarters, I think, for exotics. We have like 220,000 of them, not counting the wild hogs, like 1.5 million of those.