Admixture estimates for Haiti and Jamaica

Though this study (The genetic structure of populations from Haiti and Jamaica reflect divergent demographic histories) is based on only 15 autosomal STRs, the results appear reasonable.
a stronger African signal is detected in Haiti than in Jamaica. Although only minimal contributions from non-African sources were observed in Haiti, Jamaica displays genetic input from both European and East Asian sources, an admixture profile similar to other New World collections of African descent analyzed in this report.
Average admixture proportions for Haiti are estimated to be: 95.5% African; 0.3% East Asian; 4.3% European. For Jamaica: 78.3%; 5.7%; 16.0%.

9 comments:

Nordmann said...

Well, the admixture didn't do them much good in the brains department. In Lynn and Vanhanen's book their samples of Jamaica showed an average IQ of 72, tied with Kenya, ZA, Sudan, and Tanzania. I've actually been to that island myself and it does resemble your average fallen-apart African country.

Anonymous said...

Doesn't Jamaica have a much higher GDP than Haiti?

Pseudothyrum said...

Little known fact: almost all of the successful Africans who comes from various Caribbean islands have some Jewish admixture (usually Sephardic) because Jews were the main slave-traders there and they often had offspring with the African slaves whom they brought over to the New World to work on their sugar plantations.

Anonymous said...

"Little known fact: almost all of the successful Africans who comes from various Caribbean islands have some Jewish admixture (usually Sephardic) because Jews were the main slave-traders there and they often had offspring with the African slaves whom they brought over to the New World to work on their sugar plantations."

Could you actually back this fact up? Another fact: Sephardic jews have lower IQ's than ashkenazi jews.

Anonymous said...

"Doesn't Jamaica have a much higher GDP than Haiti?"

Yes. It also has an HDI on the level of Ukraine and Iran. It's the second worst afro-carribean country after Haiti. No other is remotely as bad as Haiti.

"Well, the admixture didn't do them much good in the brains department. In Lynn and Vanhanen's book their samples of Jamaica showed an average IQ of 72, tied with Kenya, ZA, Sudan, and Tanzania."

That would seem to make those figures incredibly suspect, wouldn't it?

Anonymous said...

Regardless as to the issue of how many jews actually participated in the slave trade, I'm pretty sure it was quite uncommon for slave masters themselves to breed with their slaves.

Anonymous said...

"Sephardic jews have lower IQ's than ashkenazi jews."

That didn't stop them from dominating the economy of Spain for a long time...hence the reason they were expelled en masse in 1492.

Anonymous said...

...and also specifically targeted by the Inquisition.

Nordmann said...

That would seem to make those figures incredibly suspect, wouldn't it?

Not necessarily. IQ is not the only factor in a country's aggregate development, not by a long shot. For example -- as you mentioned, Ukraine is low on the HDI scale but there are historical reasons for that, i.e., much of the Ukraine has not yet adopted industrial farming, there are high rates of alcoholism and illegitimacy going back to Communist days, etc.