They really don't sir. Predator numbers are going to be a county or area component. It was actually a non issue for us in Kimble County for the better of 30 years we had the place. We had few kills in the big picture of things. Most of the kills were animals I would take out anyway. Most of the exotics in their native ranges had much more aggressive predators ( lions, tigers, cheetahs, hyenas jaguars etc.) than what we have in Texas…..sans the mountain lion…..and know how to defend themselves and their young very well.
We never experienced an increase of predators due to having exotics under high fence and never had a problem with them on our fawn or African hoofstock babies.
Our main issue was with hogs messing the fences up and I welcomed any predators that may prey on the damn hogs.
Keep an eye on predator numbers and for kills and keep them in check? Yes. But folks worry way to much about seeing a predator on occasion and jump to conclusions on goals of eradication.