Secondary Crops

There are weeds that gradually came to resemble the crop they infested.  When they were recognizably different  from the crop species, people pulled them up or separated out their seeds – automatically selecting for weeds that loo0ked more and more like the original crop.   Some of  the traits acquired are those we actually desire in a crop plant, such as larger seeds that don’t drop off spontaneously – and so in some cases, a weed became a  new crop.

Rye probably started out a a weed in wheat and barley fields.  It was originally a perennial, but that didn’t work very well in cultivated fields, so it evolved into an annual, like wheat and barley.  It  was hardier than wheat, and tolerated poorer soils, so it eventually became the main crop east of the Rhine and north of Hungary.

Oats has a similar origin: it does best in areas with cool, wet summers, like Scotland.

It seems to me that there may be some social parallels: bandits turning into governments, alchemists into chemists, Galenic doctors into almost-scientific medicine.

 

 

 

 

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501 (c)(3) : The Adventure Begins

The Dark Lords of the IRS have proclaimed that West Hunter Incorporated has Federal tax-exempt status. Contributions, including various forms of real property,  are deductible.  For details, write gcochran9@comcast.net.

West Hunter’s purpose is the advancement of education and science in anthropology and evolution.  That means this blog, scientific and popular articles, books, talks, and research projects.  Depending on resources, possible projects might include a search for  effective nootropics (possibly inspired by some of the Ashkenazi mutations),  cloning  a super-Neanderthal, or breeding the Kwisatz Haderach.

Robert Heinlein, in Methuselah’s Children, imagined the Howard Foundation.  Founded by Ira Howard, who made a pile in the California Gold Rush but died young (of old age!) and childless,  the foundation bribed people with unusually long-lived ancestors into marrying people with similar backgrounds, thus selectively breeding for longevity. This was written in 1941, when many people still knew that such things were possible.

You can imagine a similar foundation that breeds for intelligence: Cyril Kornbluth did, as background for The Marching Morons.  But today, there’s no such thing. Any attempt would be denounced, even if utterly non-coercive and completely successful.

Nobody’s thinking about the long run, the big issues.  Well, hardly anybody.

 

 

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Last Survivor

Over about 2500 years, the Middle Eastern farmers occupied almost all of Europe. That migration seem to have a single origin:  genetically they seem quite similar, even as far as north as southern Sweden.

The indigenous foragers didn’t disappear instantly, and some seem to have survived amidst the dominant farmers for a long time, without much gene flow. This pattern looks similar to what we’ve seen with Pygmies and Negritos.  In these contemporary examples, the encapsulated foragers have lost their original language. Probably those persisting European hunter-gathers also adopted the language of the surrounding farmers.

If this picture is correct, it seems likely that almost all of Europe, circa 4000 BC, spoke related languages, languages descended from a language that originated in the Fertile Crescent. The language map probably looked something the Bantu languages in Africa.

And then things went bad for the EEF peoples.   There is only one surviving language that seems likely to be member of that old radiation – Basque.  There were other languages that were probably in that family and lasted for quite a while: Iberian, Nuragic,  probably Tartessian,  maybe Etruscan, possibly Minoan and Eteocypriot.   The evidence we have on those other languages generally stems from the Classical era: by that time, these languages had had maybe five or six thousand years to diverge.

This means that Theo Vennemann is probably right about a Vasconic substratum, only it should be considerably more extensive than he suggests. The population in question originated near the heartland of Middle Eastern agriculture (First Farmers would be a good ethnonym), rather than spreading from a glacial refugium like Spain after the LGM.

How to prove this?  Sounds tough.  We may need another Rosetta stone.

 

 

 

 

Posted in European Prehistory, Linguistics | 86 Comments

Let No New Thing Arise

Thinking about it, it seems that disease burden for Europeans got worse and worse with time.  Some have said that the first farmers in the Middle East wouldn’t had any increase at all in infectious disease over foragers.   That’s wrong, of course, because just being sedentary results in an increase in diarrheal diseases, worm burden, etc. Increased population density also caused trouble.   Still, it wasn’t nearly as bad back then as it would be in later millennia.

I mentioned this a while ago, in the context of warfare: infectious disease wasn’t a huge problem for the legions.  But the increase affected everyone, not just warriors.

It helps to think about critical community size (CCS).  Consider a disease like measles, one that doesn’t last long and confers lifelong immunity.  The virus needs fresh, never-infected  hosts (we call them children) all the time, else it will go extinct.   The critical community size for measles is probably more than half a million – which means that before agriculture, measles as we know it today couldn’t and didn’t exist.  In fact, it looks as if split off from rinderpest within the last two thousand years.  Mumps was around in Classical times (Hippocrates gives a good description), but it too has a large CCS and must be relatively new.  Rubella can’t be ancient. Whooping cough has a smaller CCS, maybe only 100,000, but it too must postdate agriculture.

In Classical Greece,  smallpox hadn’t arrived.  It may have shown up in the Antonine plague (165-180 AD).

Some new infectious diseases didn’t last – like the English Sweate.  But many came to stay.

Bubonic plague showed up in Justinian’s reign and killed off half the population.  It didn’t persist then,  but it hung around for centuries after the second outbreak in 1347.

Syphilis arrived in 1494.  Typhus most likely also originated in the Americas.  Cholera was old in parts of India, but only arrived in Europe during the 19th century (Russia in 1817, the rest of Europe in 1827).

Europeans must have been evolving resistance, but nature kept piling on.  In some cases, like smallpox, fairly high virulence was a favored strategy for the pathogen -and nobody is very good at out-evolving a microorganism.  Medicine was an ineffective pseudoscience, worse than useless.

 

 

 

 

 

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Old Europe’s Remnants

thinker300px-Knossos_bull

Although we know quite a bit about the artifacts, ways of making a living, and recently even the DNA of  Europe’s first farmers, we don’t know anything about their language or much about what they thought or believed in.  Old Europe was one of the more advanced parts of the world, especially in metallurgy, but they don’t seem to have developed writing. The Sardinians are genetically very similar to those EEF farmers, but I doubt that they can tell us much about the old culture.  It’s been a long time.

Gimbutas thought she could reconstruct those cultures from  female figurines and Lithuanian old wive’s tales, but that was ridiculous.

On the other hand, we know a lot about the language of the invaders,  and have figured out a fair amount about Indo-European culture from linguistic archaeology. We can see that something new was added to the European genetic mix,  but we aren’t sure where those invaders originated.  That might be resolved, fairly soon.

We know that the Indo-Europeans crushed Old Europe and eventually imposed their language almost everywhere in Europe ( except for the Basques), but it didn’t happen all at once. I’m wondering if there were any cultures related to Old Europe – not just the high culture in the Balkans, but EEF culture more generally –  that  survived long enough for us to learn more about them.  In particular, I’m wondering if the Minoan culture was a product of this tradition.  EEF farmers certainly settled Crete, and I don’t think that any Indo-European types showed up there until the Mycenaean Greeks –  although I could be wrong about that.  It seems likely that the Minoans spoke a non-Indo-European language.

 

Posted in European Prehistory, Indo-European | 36 Comments

Rasmus Nielsen

The paper on the Denisovan origin of one of the key altitude-adaptation genes (EPAS1) in Tibetans is now out (lead author Emilia Huerta-Sanchez,  senior author Rasmus Nielsen).

It’s on a Denisovan haplotype.   Likely Denisovans occupied a lot of East Asia, and quite a bit of that area is fairly high altitude, not just Tibet.  We have evidence that East Asians have a bit of Denisovan ancestry,  and a small amount of admixture is all it takes to pick up a highly advantageous variant.

Denisovans were probably in Asia for at least a couple of hundred thousand years, much longer than anatomically modern humans.  Homo erectus and descendants were there a good deal earlier, and this variant might have originated that far back, although it may not be divergent enough for that to be plausible.

Here’s what Rasmus Nielsen said about this discovery:

“It was a complete surprise,” says Nielsen. “It took years after the Denisovan genome was published for us to even try this, because we thought it was so far-fetched.

Which is strange, because it was quite obvious. Not just in the sense that I told y’all about it over and over, wrote an article with Hawks on it in 2006, and mentioned it in our book – clearly I should have gone ahead with the fiery-letters-in-the-sky approach.  Let me tell you about a conversation I once had with Jim Crow, maybe ten years ago.  I was saying that adaptive introgession from Neanderthals was likely, and he mentioned once hearing someone say that although there might have been a bit of admixture with Neanderthals, it would have been biologically insignificant.  He heard that and thought “No!”; he knew that even a few copies of an adaptive variant would likely rise to high frequency.  He never wrote it up for the Neanderthal case, but he knew.

Of course it was also likely because the Tibetan adaptations are too damn good – different from the Andean ones, more like those seen in mammalian species that have lived at high altitude for a long time. Which Nielsen should have noted. Which is why the Ethiopian adaptations, some of them anyhow, surely have pre-modern-human origins – unless anatomically modern humans originated up on that plateau.  Which I doubt.

This may sound as if I think Nielsen is dumb, but I don’t.  He was wrong, but not dumb: I don’t pretend to know what screwed up his thinking on this issue. One could always blame Ernst Mayr.

On the other hand, I can think of a couple of fairly well-known players in this business who really don’t seem to understand much of anything.  I’ll  let you guess who they are.

 

 

 

 

 

Posted in Altitude adaptations, Denisovans, Genetics | 22 Comments

The Veeck Effect

Once upon a time, I wrote about the Veeck effect of the first kind.

I suppose that I owe the world an essay on the Veeck effect of the second kind, which corresponds to putting a midget up to bat.  I’ll think on it.

 

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