Just a few thoughts on the Land of Mice and Snow
* The modern inuit and eskimo derive from the Thule culture, which around 900-1100 began to expand out of Alaska and displaced the preceding Dorset culture. The expansion was rapid, and by about 1300, the Thule Inuit extended as far as Northern Quebec and Labrador and Greenland in the east and out to Siberia in the West. So this was a rapidly expanding, fairly dynamic culture.
* The Thule/Inuit were able to displace their rivals because they were a literally more technologically sophisticated culture with a greater range of technology. In particular, they had domesticated dogs, which allowed them significant overland mobility, they had drills, bows and arrows, and a range of items. It seems strange to describe a hunter/gatherer subsistence culture as sophisticated. But this is what they were. They were a people who endured in the most hostile landscape on Earth, and did it successfully. The vikings who colonized Greenland were not so successful.
* So, we should probably recognize that even in OTL, the Inuit were an intellectually and technologically adaptive and sophisticated culture which was extremely successful, and even in modern times, coped fairly well with European influence, readily adapting and incorporating techniques and technology.
* The nature of the Inuit landscape, however, meant that there was not a lot of edible plants, particularly in comparison with the south. The Inuit culture oriented towards hunting and fishing, a lot of protein in the diet, and commensurate mobility. Through the course of a year, the Inuit populations moved steadily through their territories, sometimes gathering together, but invariably moving towards the hunting opportunities. The largest communities were a dozen houses and fifty people. Mostly, social units were much smaller. Even there, life was sometimes unreliable, bad hunting season was fatal, and there are archeological sites which are essentially inuit communities that starved to death. Basically, this meant that the population density with the current package was about as high as it could go.
* The Arctic/Subarctic climate has real obstacles to an agricultural package. We're talking a very short growing season, and relatively low temperatures. Summer has the benefit of extended periods of sunlight, often over 18 hours a day, but cloud cover reflects a lot of that. So basically, too harsh an environment for trees, a lot of muskeg, small plants, bushes and shrubs, etc., not too much that's both easily procurable and edible in comparison with the south. Due to the conditions, a lot of the plants are perrenials, living several years, and thus amortizing their biological investment for intermittent periods of biological investment.
* If we check, a lot of the edibles - Eskimo potato, Cloudberries, Cranberries, Crowberries and Linganberries are all perrenials. These are long lived plants which take a few years to produce their edible fruit or root, and are not necessarily reliable for producing annually. Obviously, this poses an obstacle to agriculture, no farmer wants to wait two or three years for his crop to come in, that's a good way to starve in the first year.
* Of course, if we poke around down south, there are a number of cultures which have perrenial producers as part of their package, or even as a staple. Grape growers in the mediterranean, or coca growers in south America are two examples. In these and similar cases, their food plants are treated as long term investments and a fair bit of attention is paid. So, its not out of the question.
* The bigger question is productivity. Suppose that we're intensively cultivating Lingonberries or cranberries. These are domesticated species that are commercially cultivated. What's the productive capacity per acre? Basically, how many people can you feed per acre, or how many acres do you need to feed a person? Given that this is terra incognita - ie, we're looking at complete hypotheticals, we'd have to look at the known qualities of the plants in question and make guesstimates.
* One thing to keep in mind with guesstimating is that domesticated plants tend to be a lot more productive than their wild counterparts. They're usually bred to grow faster, produce more berries or a bigger root or roots, maximizing biological potentials. Of course, with the Thule/Inuit, we'd only have a relatively short period of domestication, from about 900, so intensive breeding doesn't have a long time to work with. We're also looking at perrenials, so assuming a median 3 to 4 year cycle, we're only looking at about 200 to 300 plant generations before we get to the modern era. Given the time frames, you'd probably have to establish a productive domesticate within the first handful of generations. Still, there are potentials.
* One thing that kind of works in our favour is that that the Eskimo/Inuit actually do have proto-agricultural practices with regard to a couple of items. With Eskimo Potato, there is in some places a tradition of re-burying the thickest part of the root to encourage the plant to grow again. With mousefood, there's a tradition of leaving a gift or replacing the cache taken with 'vole edible' food so as to preserve the animal to continue its caching.
Interestingly, both of these practices seem to be from Alaska, which is where the Inuit/Thule originate. Alaska's a big place, but it seems possible that these practices could have emerged early and found their way to the component of the Inuit/Thule which expanded, and remained as part of the social toolkit when they spread across the north. Now, if these practices were very widespread and/or if you had roots or voles which responded extremely well to these practices, you'd probably have much more widespread plants and these plants or practices forming a larger part of the diet. Actually, the two feed into each other, if the plant responds very well to it, its more likely that the cultural practice becomes widespread, because it pays off.
* Let's stick with Eskimo potato for a second. As noted, this seems to be a pioneer plant, its tough and hardy, and it does well in disturbed ground. Assuming that it responded well to this sort of replanting of pieces of root, its a very short step to planting in new ground, or multi-planting to encourage multiple roots. In short, you'd see the next step in proto-agriculture where the inuit were actively and deliberately spreading the plant, and had a good grasp of the locations and grounds where the plant would grow well. It would be a long term investment, they'd do the planting, and then have to come back in a year or a few years. But it could pay off. Eventually, the annual migratory cycle would contain a series of garden patches that they'd travel through and harvest. A small bit of selective breeding or a minor mutation might vastly improve its cultivation qualities.
* There seem to be two species which go by the description Eskimo Potato. Claytonia Tuberosa, and Hedysarum Alpinum. Or it may be the same plant with two different scientific names as a result of some classification argument.
* Assuming that they're different, here's some interesting links of Claytonia:
http://www.ehow.com/about_5393267_edible-plants-flowers-arctic.html
http://plants.usda.gov/java/profile?symbol=CLTUT
http://www.naturalmedicinalherbs.net/herbs/c/claytonia-tuberosa=tuberous-spring-beauty.php
* And here's links of Hedysarum, which is also known as Alpine Sweetvetch, and definitely seems to be a different plant, or at least have different flowers, and much more widely distributed. This is in addition to my previous link, which seems to suggest that Alpine Sweetvetch/Eskimo Potato is a very good candidate for domestication and possibly a founder or pseudo-founder co-founder crop:
http://plants.usda.gov/java/profile?symbol=HEAL
http://arcticrose.wordpress.com/200...dian-potato-traditional-medicine-or-food-use/
http://www.mun.ca/biology/delta/arcticf/_ca/www/faheal.htm
http://www.tifilms.com/wild/call_debunked.htm
*You'll note that my Claytonia link contained 'edible plants and flowers of the arctic.' One of these is a shrub called Arctic Willow. Doesn't seem like much of a crop plant, but somewhat edible.
http://en.wikipedia.org/wiki/Salix_arctica
*A much more interesting plant is another edible root called Rhodiola Rosea. It's leaves are edible, and it appears to have mild mind altering properties, alleviating fatigue, depression, improving mood. Efforts are under way to develop it as a cultivated crop, largely because of its medicinal properties which give it significant value. My impression is that it's probably a more finicky plant that Alpine Sweetvetch. Might have some mileage as a secondary food crop, or a specialty medicinal crop - a la tobacco. Could be a major trading crop.
http://en.wikipedia.org/wiki/Rhodiola_rosea
http://www1.agric.gov.ab.ca/$department/deptdocs.nsf/all/agdex13054
* On the subject of Reindeer and Caribou. There's too much Jared Diamond worship and not enough thinking things through. You look at the history of Reindeer domestication, or semi-domestication, and the interesting thing is that it's relatively recent. Goes back maybe 500 years and change. Prior to that, the Sammi people, or Lapplanders were hunters, following the herds. The shift seems to come when the expanding Norwegians intruded into Lapp territory, confining the Sammi. At which point, they seemed to make the switch from simple hunters to herders, and began to domesticate. That never happened at all with the inuit, whose
lifestyle was essentially incompatible. But change the equations of the inuit, say, a slightly greater population density, and less mobility, and you might get similar domestication efforts.
* I think in terms of the likelihood of domesticating animals, we should keep in mind that the Thule/Inuit were a culture which had mastered the domestication of the dog and the application of the dog as a work animal to a higher level than just about any other culture. Now, we tend to take dogs for granted. But let's get some perspective here - Fido is a large dangerous predator which coordinates its activities socially and is perfectly willing to eat people. Up in Northern Canada, every other year, there's an uproar about community dogs banding together and killing and eating a child. Dogs are very complementary to and work well within the thule/inuit lifestyle, and its a lifestyle which produces a surplus of meat or fish product to keep dogs going. But the point is that the Thule/Inuit, if they were domesticating and using dogs, had already made the conceptual leap to domesticated animals and animal labour. Now, in OTL culture, no other animal really fit in with the inuit lifestyle as a domestic. But if Inuit culture shifts then you might find other domestication possibilities being open and being explored. In some ways, a Caribou is a superior domesticate to a dog. Caribou aren't likely to eat you, and don't have that expensive meat/fish product diet.