The Mechanics of Orbs of Light

Thanks for the lesson!! I have one question though, something I have long investigated but been unable to solve conclusively: When orbs are dropped, (lets say three orbs) are those 3 orbs available to the entire community, and the first person who runs over them will pick them up, taking them out of the world and into their super meter? Or Are three orbs produced for each guardian? You see orbs on the ground, and just as with ammo, engrams, those little quest pyramids, and every other object on the ground, those are yours alone to pick up. I guess what I am asking is when an orb is produced, is that one orb for each guardian in the community or one orb for the community to share?