pc allen wrote,
"I often see locale animals caught for collections and profit on this forum."
It is legal to collect sypila and gentilis in Kansas w/ a permit, which is easy to obtain.
As for profit made from wild caught syspila/gentilis I seriously doubt much profit has been made by anyone.
Some neonates get produced every year, and it's done for the joy of working w/ the animals more then it is for the profit. The profit from syspila/gentilis neonates is slim to none.
pc allen wrote,
"due to the high demand for them in the commercial pet trade."
What is high demand, 40, 60, 100 animals in a given year? It would be interesting to look back over the Kingsnake classified adds to see how many gentilis were offered for sale last year. I bet you could count the adds on two hands, and two of those adds would be for wild caught gentilis.
I think your backyard is safe from over collection, given the number of syspila/gentilis in Douglas county, Kansas.
If your interested in pursuing this idea further, I would read Brian Hubbs book, Mountain Kings, a collective natural history.
Page 231, chapter 19, Habitat Damage, Destruction and Game Management.
-Dell