Yes, indeed.

But I look especially for in depth tutorials for so called 3D ecosystems as my task is to simulate some swarm behaviour, like bee swarms or bird swarms. The tutorials from geekatplay.com are a good base, but unfortunately there is not enough time for trial and error to come behind the advanced secrets of Vue 3D ecosystems. When there is nothing on the market I have to decide the use of another software with a particle system (but that's more expensive and -/render/-time consuming than I want, so that is Plan D).

At AsileFX I found very good tutorial for populate "normal" things like hills, fields and so on, but there was no special topic about my special problem...