"if all the ursaphants die, all the ursaphants are dead:)"
You're a monster!
But in all seriousness, ecosystems and biology was kinda my thing once upon a time - ecosystems are relatively delicate things. Some animals are voracious predators but normally there is a higher level predator hat keeps them in check so they don't wipe out an animal lower in the food chain. Even with no humans in the game world, an ecosystem could be set up and not be balanced so half the life forms are wiped out in a year.
I'm not being doubtful or a cynic I'm just curious (in a non technical way) how is that prevented? Is that just a matter of letting simulations run super fast and constantly tweaking numbers till it balances out? Or has this already been done before and there is a model to base it off of? Or when numbers of animals drop (especially at the primary prey level) do animals' hunger higher up in the food chain get reduced so they don't exhaust the food supply as fast? Bicycle Walrus was talking about how fox will hunt something else when it's primary food source is exhausted....in regards to spatialOS giving objects a sense of realistic behavior....will the starvation aspect be slowed down so animals don't starve to death as quickly as they normally would?
One solution to a complete ecosystem collapse is to have animals at the base of the food chain (something like rabbits which are eaten by just about every predator) breeding rate increase as their numbers drop but taper off as they get higher.
That would help with maintaining the integrity but some animals will over breed and exhaust available resources (rabbits, rats and even deer at a slower rate etc) in contrast to larger predatory animals that not only breed at a much slower rate but their behaviors also prevent over population to some extent unlike rabbits and rats:ie,lions - jeuvenile males are sent off to form male prides, only the alpha male in a pride is allowed to mate, cubs from other males are killed when a new male takes over, when males are cast out they must travel to a new region to try and form a new pride etc etc.
Then there are examples of opportunistic feeders (mostly fish) who will literally eat themselves to death if there is an over abundance of food because they are constantly seeking food.
Ok yeah....it's late and I can't sleep but ecosystems fascinate me and I'm just curious what their approach to balancing it will be.
Good luck! Excited to see it all come together!