How do you mean? Keeping OTL geography but defining the New World thus? I am intrigued about the timeline?I've played with the idea of a Greater New World. One that not only includes the Americas and Oceania but also Madagacascar and the Canary Islands. With not only surviving Rapanui/Vinland but expanded with greater domesticated animals and spread of said domesticates. Such as paca,pacarana,chinchilla,peccary,igauna,hutia,emu, brush turkey and surviving elephant bird,moa and dodo,primarily by becoming status symbols of the elite. I would do a better timeline,but I reckon no-one would pay any attention.
Well for Oceania,many consider them to be New World since they were discovered centuries after Columbus with similar tech levels. Madagascar likewise was discovered around 1500 and the Canary Islands around the 14th century with the Guanche experiencing the same situation as Native Americans a century or two later. I've always had a fondness for both Vinland and Rapa Nui who got dealt some bad luck. And there are several large rodents of the Hystriacomorph family that are prime candidates for domestication as are several iguana species. For the Aboriginals,they were innovative,practiced aquaculture and there are some bird species alone with monitors that might be good candidates, As for the Guanche,what held them back was lack of boats. If they got ahold of some reed boats and learned how to use them,then they could colonize the rest of Macronesia and maybe set up trade along side the Outer Caribbean. For Madagascar, I never understood why the Malagasy didn't travel to and set up colonies in the Mascarenes,maybe more population pressure in Madagascar is the key,likewise maybe some could travel to and set up a small settlement in Kerguelen. For New Zealand,if the Rapa Nui grow in numbers and trade with the Andeans,maybe some will set sail for Polynesia.Maybe some in New Zealand,perhaps with guinea pigs or alpacas? More cold-adapted livestock at least. And of course,I want the Rapa Nui to colonize the Galapagos and other islands up and down South America to California.How do you mean? Keeping OTL geography but defining the New World thus? I am intrigued about the timeline?
Kinda ASB unless your Greater New World has another Antarctic Peninsula stretching up south toward New Zealand since the distance is utterly huge across legendarily stormy oceans and going from the treeless Sub-Antarctic Islands to the coast of East Antarctica is a massive leap in climate conditions and available plants (i.e. none) and animals.Another thing I'd want to do in Greater New World would be the colonization of Antarctica. I feel the Patagons would be the best candidates since they are right next door,but maybe some Moriori drifting further south as an infusion. Maybe it could be done with transplant of the megaherbs of southern New Zealand. Not deep into Antarctica,but eaking out a living alongside the coastal Antarctic islands/coastline. Who knows? Perhaps they develop a taste for penguins.
If I decided that Antarctica would be colonized,it would be the Fuegians primarily due to the fact that they are already adapted to the cold. Moriori would be later if then. But much like their Arctic counterparts, the Antarcticans would have a primarily meat based diet with similar ways to cook leopard seals,penguins,whales and whatever Antarctic fish is around. And they might be more seafaring if for nothing else than how inhospitable mainland Antarctica is.Kinda ASB unless your Greater New World has another Antarctic Peninsula stretching up south toward New Zealand since the distance is utterly huge across legendarily stormy oceans and going from the treeless Sub-Antarctic Islands to the coast of East Antarctica is a massive leap in climate conditions and available plants (i.e. none) and animals.
There's some edible species of megaherbs like the Macquarie Island cabbage and there's probably enough of that combined with seaweed, fishing, and seabirds to scrape out a living for a hunter-gatherer society. I do wonder if there's any particularly useful species of megaherb in terms of calories and nutrients. But I doubt they'd be able to grow on Antarctica except maybe in very, very sheltered parts of the tip of the Antarctica Peninsula facing the sun since even there Antarctica's climate is colder than places like Macquarie Island.