Hydromancerx
C2C Modder
As for resources on features I don't think that would be a problem. Plant resources/features would come in early enough to start spreading it in your nation anyway so would be a simple matter for the player to "move" it so the resource would be usable.
But what happens if a subdued animal spawns a resource such a a bison resource on top of say a Banana feature? Do you put a Plantation on it or a Camp?