I always tape my black bags b4 binning them, I hate the FL bugs and the smell, and here's my opinion on the tape having been around the bags.
I pull very little tape to seal my bags, and once wrapped it becomes a small "O" shape around the bag.
IF I dumped this bag into the elements and waited for animals or water to destroy, here is what would happen.
Animals just rip open the bag, the tape would be found attached to the neck of the bag, maybe even floated further away from the trash.
Water would likely just loosen the sticky and leave that "O" shaped tape piece. If I let my mind water into unlikely but hey who knows, The tape may have become loosened by the water, straightened itself out and floated close to the skull, then reattached itself to the skull.
However I would have TWO major problems with my 'hey who knows' portion.
Firstly, who would (and why) would anyone use THREE pieces of tape to seal a bag?
The water washes away the adhesive, to the point where the tape falls off the bag, and lays itself flat, so each of the start/end portions of the ripped tape (3) manage to lay themselves out of the 'O' and into a ------ shape, BUT then it got sticky enough to bind the mandible and adhere to the hair matt? It's either sticky or it's not. Duct tape doesn't magically become adhesive again.