I'm just worried about, if u release a big (native) colony in your garden. Wouldn't it take space of other organisms, or would it find a balanced harmony.
Of course releasing a large ant colony in your garden will shake things up quite a bit, how could it not. Also the colony will probably not survive without initial assistance as large colonies normally have existing food sources - your ants will have nothing and will need time to secure them.
But there are examples of people who have successfully released large ant colonies, even working with local wildlife agencies (i do know of two cases with Camponotus vagus and a few others). And on a quick note, it's always better to ask your local wildlife agencies first to be on the safe side - they may even choose to help you, if it's an endagered species like C. vagus.
There's no guarantee the colony will survive of course. You can increase their chances quite a bit by chosing a good spot and providing them some initial assistance, but at some point they have to do on their own. There's also the chance they may become a major annoyance or even a real problem in the future (that's especially true for colonies that like to nest in dry wood or insulation), so be careful with what you wish for.
Is there a news article about that? Sounds really interesting I want to find out more
article:
https://www.zmescien...k-food-0523534/
study:
https://royalsociety.../rspb.2014.2608