My objective in doing a seashore foraging study in a Filipino island village is to try and reconstruct a diet and way of life that early man (Homo erectus and later, Homo sapiens) could have used when they travelled to Eastern Asia from Africa, presumably along the shoreline.
But what about the rice? My neighbours eat rice, rice, and rice, foremost - anything else is just a condiment. So how could early man have had a similar diet if he didn't cultivate rice?
I think that problem will need some more considered thought than I can spare right now.
There has been discussion (and some controversy) about the supposed inability of modern hunter-gatherers to survive in certain places (specially rainforests) without getting necessary carbohydrates from local cultivators. I wondered how their ancestors had survived before cultivators came along to help them out.
So I've been googling again on the origins of the main carbohydrate food plants, which brought some surprises.
Yoy may find some of the links interesting, I hope.
Maize
Zea mays ssp. mays - originated from teosinte in Mexico, but teosinte is totally unlike modern sweetcorn, except that it does 'pop' on a fire. To get to modern sweetcorn must have taken a lot of human selection as well. Somehow, maize got to Asia very early - Magellan was feasted with it on Limasawa, an island very near to mine.
http://www.geocities.com/CapeCanaveral/Hangar/3288/ARCHAEOLOGY.HTM
http://www.globalserve.net/~yuku/dif/wmz1230a.htm
Wheat
Triticum spp - originated in SE Turkey, but wild wheat shatters as it ripens, helping it to spread seed. Humans had to select nonshattering varieties, which went against a strong plant evolutionary trend which had strengthened over millions of years - it couldn't have been easy.
http://www.athenapub.com/einkorn1.htm
http://www.spelt.com/origins.html
http://www.odu.edu/webroot/instr/sci/plant.nsf/pages/wheatandproducts
Rice
Oryza sativa originated in China but I don't know the difficulties of early cultivation.
http://en.wikipedia.org/wiki/Rice
Chinese Rice
http://www.carleton.ca/~bgordon/Rice/papers/zhimin99.htm
http://www.carleton.ca/~bgordon/Rice/papers/XiangAQ2000.htm
African rice
Oryza glaberrima - is presumably a rice species of African origin, grown in West Africa. Madagascar (at least in the highlands) is also a rice-growing society, but they are descended from Indonesians.
http://antiquity.ac.uk/ProjGall/murray/
Added 25 Oct 2004
How could I have forgotten this one?
Banana
Musa acuminata - Bananas originated in South East Asia or Western Pacific. It used to have hard seeds, and was pretty much inedible. 'Modern' bananas are female, but sterile, and cultivated by transplanting suckers from the base of the tree. At some time, the original species,
acuminata, was crossed with another,
balbisiana, (perhaps in India or the Philippines) which gave them far more resistance to drought, made them more starchy, and more suitable, as plantains, for cooking. The world's 4th staple crop is the banana, but most of these are plantains for cooking, 73% of which are now grown and eaten in West & Central Africa.
The sweeter varieties used in Western countries as dessert bananas are mostly grown in the Caribbean and Central merica, and are descended from bananas taken to the Canary Islands in the 16thC.
Bananas are so common on Siargao Island that they are practically weeds. There are many different varieties, from sweet to very coarse, and I can well imagine them as an essential item of prehistoric food use.
http://www.arc.agric.za/institutes/itsc/main/banana/origin.htm
http://news.nationalgeographic.com/news/2001/07/0726_wirebanana.html
Coconut
Cocos nucifera - either SE Asia or NW South America, but spreads easily along shorelines, and hardly needs 'cultivation'.
http://en.wikipedia.org/wiki/Coconut
Cassava/Manioc
Manihot esculenta - originated in the Amazon Basin
but "All cassava contains varying amounts of cyanide, a toxin that protects the plant from insects. Indigenous people have learned to avoid poisoning themselves by spitting into batches of the ground tubers; the saliva introduces bacteria and fungi, which activate an enzyme that breaks down the cyanide. Villagers accomplish the same thing by depositing freshly dug cassava tubers into a community pond; microorganisms in the water degrade the cyanide."
It's a bit strange that a 'Stone Age Tribe' the Taut Batu on Palawan in the Philippines, discovered only in the '70s, were growing a plant from South America.
http://news-info.wustl.edu/feature/1999/May99-staple.html
http://www.txtwriter.com/Onscience/Articles/cassava.html
Taro
Colocasia esculenta - originated in Malaysia
It can like yams, be para-cultivated by simply planting the tops - Polynesians carried these all over the Pacific
http://www.botgard.ucla.edu/html/botanytextbooks/economicbotany/Colocasia/
http://www.fao.org/WAIRdocs/x5425e/x5425e01.htm
Sweet Potato (Camote)
Ipomoea batatas Origin- South America (- also origin of word 'potato')
Again, this can be cultivated very easily.
But it somehow became a staple of New Guinean horticulturalists long before it 'should' have done.
http://apdl.kcc.hawaii.edu/~ahupuaa/botany/food/uala.htmhttp://en.wikipedia.org/wiki/Sweet_potato
Sago (Tapioca)
Cycas revoluta - originated in SE Asia (grows wild on my island)
but it contains a neurotoxin which brings on paralysis and dementia - see Oliver Sacks' book 'The Island of the Colorblind' where he traces a mysterious disease among the Camorro of Guam to their main foodplant.
http://en.wikipedia.org/wiki/Sago
24 Oct 2004 - Revision
I got this wrong, of course - by far the most important sago plant is the true sago palm (
Metroxylon sagu) a staple food for New Guineans, where in some parts it forms 85% of the carbohydrate diet, and it is 'para-cultivated' by Penan hunter-gatherers of Borneo.
http://www.pacsoa.org.au/palms/Metroxylon/sagu.html
http://www.artsci.wustl.edu/~anthro/courses/361/barkin.html
Potato
Solanum tuberosum - Originated in the Andes
The potato is a member of the nightshade family and its leaves are, indeed, poisonous. A potato left too long in the light will begin to turn green. The green skin contains a substance called solanine which can cause the potato to taste bitter and even cause illness in humans. Its cultivation as a single variety prone to potato blight led to the Irish famine of the 1840s and ultimately to the glories of Boston and the NYPD.
http://en.wikipedia.org/wiki/Potato
http://www.indepthinfo.com/potato/history.shtml
In short, after this I wondered how anyone survived early efforts at agriculture at all.
A very good book about the origins of agriculture and the subsequent ascendancy of Europeans is
'Guns, Germs and Steel' by Jared Diamond.