The ant master of the world chooses his words with care: ' that collective ant behavior could best be described as ant Culture.' He did not say 'ís ant Culture'.
Till now we focussed on the sociological and anthropological part only.
Culture certainly had become a very stretchable word. As Jackie mentioned: each one his own culture, his own value in spite of the general similarities?

To Mavericks original question I still have no answer.
'What does the word culture mean to you?'
All I can say is: "a lot" (which isn't much)