I was playing the first mission in the campaign last night, and I took over the Morala Resource towards the centre of the map with a constructor (had to fight off the Drengin first, but their own stabase had never been upgraded so fell to the weakest of attacks...)
Yet when I checked the nearest colony (shown as being well within the starbase's circle of effect - about 2 or 3 pc away!), there were no starbase bonuses listed.
Is it that I've misunderstood how this resource works, or is it a bug? I can try to post a link for a saved file if anybody wants...