The best way to describe koverans it that they’re antimatter but not…
While an antimatter particle transforms mass into mass-energy, a loose koveran particle will transform that same mass into koveran energy. The koveran energy is then siphoned by Beems for use as food and fuel.
Now koverans exist in beemspace, as does the energy they produce, so in order for a Beems to siphon this energy properly, they have to ‘sniff it out’. They do this by detecting koveran trace elements. This is why beemspace isn’t particularly friendly to us matter-bound creatures, as we would all transform into tasty koverans for the beems.
The amount of trace elements/koverans that exist in a certain place is directly proportional to the amount that space is/has been ‘distorted’, as well as the amount of ‘life energy’ that space has. Jupiter would have a higher koveran concentration than Pluto, but it would not have a higher koveran concentration than Earth, as Earth has little people living and dying on it constantly that (for strange reasons) increases the koveran count of that region.
So basically:
Small planet + no life = no koveran trace elements.
Massive planet + teeming with life = tons of koveran trace elements.
So to re-iterate and pave way to more reading, koveran energy is like mass-energy, except without the ‘being energy for us’ part and more the ‘being energy for beems’ part. If something is transformed into koveran energy, it no longer exists in this space and is instead deposited into beemspace, where it can live (see: Symbiote) or just linger for a bit until something horrible happens (see: Black Nova)