Although I find the latter a bit biased, since Muslim influence extended to Northern Italy as well. Finally, I am not anti-Muslim. While Europe was in the Dark Ages, it was in the Muslim world that the great antiquities in art and literature were preserved. Egypt had the first great Empire, and I proud to acknowledge that going back a couple thousand years that SOME of my ancestors came from there. Let's stop this "North is good, South is bad" mindset. South is good too!
I think that my link to showing NW African (Moorish) admixture in Europe is proof enough that I recognize that there is Northwest African admixture in Italy, but it shows a 2.5% average in Italian persons, compared to 8% in the Portuguese, 5% in Spaniards, and 3.5% in the French. My father is a Calabrian, born to a family of fair skinned, green eyed redheads, in the mountains. His family could easily be mistaken for Irish, Scottish and others. A land bridge...what are you talking about...please tell me you don’t base your theories on Neanderthals. Buddy, to this day, Rome is the capital of Italy, but not the largest city in Italy.
