Sunday, December 2, 2012

Limitations of natural selection

It is a article of faith in some quarters to tout "natural selection" for this or that physical or "behavioral" trait. Mexican guy cuts you off in traffic? Well ancient environmental pressures in the Valley of Mexico circa 15,000 BC "selected" for such lineages that lack "restraint". Some women blonde? Well nature "selected" for these women to make them more attractive to their compatriots,  presumably even the pasty 200 pound chunkettes or bony types nobody is beating down the door for.

But in any event, credible scientists show that the much touted god of "selection" may be a minor or irrelevant deity in numerous cases. QUOTE:

[i]"It may appear counter-intuitive, but a large part, if not the majority, of genetic change in human populations is not thought to be due to natural selection but rather due to the play of chance (genetic drift; Harris and Meyer, 2006; Li et al., 2008; see Table 2 for a glossary of terms frequently used in population genetics). Many opportunities for chance can occur in the transmission of alleles from parents to offspring, and evidently did occur as part of the demographic process of dispersal out of Africa. Thus, finding differences in the frequency of alleles at a particular locus between populations is not an evidence of natural selection per se. The default position is that of neutral theory, whereby chance events account for most patterns of genetic diversity (Harris and Meyer, 2006). Of course, deleterious mutations will be selected against (purifying selection) and beneficial mutations may increase in frequency to fixation, but overall these events will contribute little to explaining the presence of most polymorphisms." [/i]
 --J. Rees and R. harding 2011. Understanding the Evolution of Human Pigmentation:  Recent Contributions from Population Genetics.  Journal of Investigative Dermatology. 358

[i]"How do we know for certain whether a trait evolved through natural selection or instead, through a neutral evolutionary mechanism of genetic drift? This question (as well as any answers we may offer) is fundamental to understanding the adaptive significance, if any, of population-based (or race-based) differences in functional traits.

Many experts maintain that although natural selection plays a critical role in the evolutionary origin of many traits, it is not the driving force behind all biological phenomena. In fact, according to some evolutionary biologists who conduct empirical field research, genetic drift is typically assumed by default to account for most traits. Proving that natural selection is involved in the origin of a particular trait is a complicated process. Given the complexity of natural selection, it is not surprising that biologists cannot ascertain if there are long term differences in traits that have evolved through natural selection versus those that emerged through neutral selection. 3

There are other enigmas that must be sorted out as well if we are to identify the features that distinguish natural selection from neutral selection. For instance, genetic drift tends to be more influential in small populations while natural selection is more powerful in large populations. The microevolution of human races that occurred over the past 15,000 to 30,000 years affected smaller human populations.."[/i]

--A. Oubre 2005. The Adaptionist Yardstick: Rethinking the Social Implications of Sarich’s and Miele’s Fast-Track Micro-Evolution

Joint products of "racial evolution"...


Racial discrimination is alive and kicking in employment, housing and credit markets

Sowell 3- new data shows backward tropical evolution? Wealth and Poverty- An International Perspective in Trump era

Sowell 2- Wealth, Poverty and Politics- International Perspective - Trump era to bring these issues into sharper focus?

Sowell- Liberal intellectuals and hard questions about race differences- Trump era may force them to focus?

Trump properties discriminated against black tenants, lawsuit finds

Stealing credibility- Dinesh D'souza has prison epiphany- after hanging with the homies- Hallelujah Hilary!

Go with the flow 3- more DNA and cranial studies show ancient African migration to, or African presence in ancient Europe

Go with the flow 2- African gene flow into Europe in various eras
DNA studies show African movement to Europe from very ancient times

Guilt3- Why the "white privilege industry" is not all there

Guilt2- Media collaborates with guilt mongers - or how to play the white victim card

How Obama plays on white guilt- Hilary capitalizes

Hands off the Confederate flag

Despite much more wealth than blacks, whites collect about the same rate of welfare and are treated more generously

African "boat people" ushering in European demographic decline

The forgotten Holocaust- King Leopold's "Congo Free State" - 10 million victims

Are violent minorities taking over California and the West?

Presidential hopeful Ben Carson meets and Greeks

Contra "ISIS" partisans, there have been some beneficial effects of Christianity

The social construction of race, compared to biology- Graves

 Why HBD or hereditarianism lacks credibility

Leading Scientists criticize hereditarian claims

Thai me down - Thais fall behind genetically related southern Chinese, Tibetans below genetically related East Asians like Koreans and other Chinese

Time for liberals to respect "the south" ... in a way of speaking.. the south of Egypt that is..

Irony 2: touted High IQ "G-men" cannot reproduce themselves

Unz and Sowell: Unz debunking Lynn's IQ and Wealth of Nations. Sowell debunking the Bell Curve

Irony 1: touted High IQ types are more homosexual, more atheist, and more liberal (HAL)

Elite white universities discriminate against Asians using reverse "affirmative action"

Deteriorating state of white America

Racial Cartels (The Affirmative Action Propaganda machine- part 2

Hereditarian's/HBD's "Great Black Hope"

Exploding nonsense: the 10,000 Year Explosion

We need "rational racism"? Proponent Dinesh D;Souza becomes his own test case

The Affirmative Action Propaganda Machine- part 1

Two rules for being "really" black- no white wimmen, no Republican

The Axial age reconsidered - or latitude not attitide

Cannibal seasonings: dark meat on white

"Affirmative Action" in the form of court remedies has been around a long time- since the 1930s- benefiting white union workers against discrimination by employers

Mugged by reality 1: White quotas, special preferences and government jobs

Lightweight enforcement of EEO laws contradicts claims of "flood" of minorities "taking jobs"

Railroaded 3: white violence and intimidation imposed quotas

Railroaded 2: how white quotas and special preferences blockade black progress...

Railroaded 1: How white affirmative action and white special preferences destroyed black railroad employment...

Affirmative action: primary beneficiaries are white women...

7 reasons certain libertarians and right-wingers are wrong about the Civil Right Act

Social philosophy of Thomas Sowell

Bogus "biodiversity" theories of Kanazawa, Ruston, Lynn debunked

JP Rushton, Michael Levin, Richard Lynn debunked. Weaknesses of Jared Diamond's approach.

In the Blood- debunking "HBD" and Neo-Nazi appropriation of ancient Egypt

early Europeans and middle Easterners looked like Africans. Peoples returning or "backflowing" to Africa would already be looking like Africans

 Ancient Egypt: one of the world's most advanced civilizations- created by tropical peoples

Playing the "Greek defence" -debunking claims of Greeks as paragons of virtue or exemplars of goodness

Quotations from mainstream academic research on the Nile Valley peoples

Assorted data debunking

Evolution, brain size, and the national IQ of peoples ... - Jelte Wicherts 2010

Why national IQs do not support evolutionary theories of intelligence - WIcherts, Borsboom and Dolan 2010
Personality and Individual Differences 48 (2010) 91-96
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Are intelligence tests measurement invariant over time? by JM Wicherts - ?2004
 --Dolan, Wicherts et al 2004. Investigating the nature of the Flynn effect. Intelligence 32 (2004) 509-537

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Race and other misadventures: essays in honor of Ashley Montagu... By Larry T. Reynolds, Leonard Lieberman

Race and intelligence: separating science from myth. By Jefferson M. Fish. Routledge 2002. See Templeton's detailed article referenced above also inside the book
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Oubre, A (2011) Race Genes and Ability: Rethinking Ethnic Differences, vol 1 and 2. BTI Press
For summary see:
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--S OY Keita, R A Kittles, et al. "Conceptualizing human variation," Nature Genetics 36, S17 - S20 (2004)

--S.O.Y. Keita and Rick Kittles. (1997) *The Persistence ofRacial Thinking and the Myth of Racial Divergence. AJPA, 99:3
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Alan Templeton. "The Genetic and Evolutionary significnce oF Human Races." pp 31-56. IN: J. FiSh (2002) Race and Intelligence: Separating scinnce from myth.

 J. FiSh (2002) Race and Intelligence: Separating science from myth.


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Oubre, A (2011) Race Genes and Ability: Rethinking Ethnic Differences, vol 1 and 2. BTI Press

Krimsky, S, Sloan.K (2011) Race and the Genetic Revolution: Science, Myth, and Culture

Wicherts and Johnson, 2009. Group differences in the heritability of items and test scores

--Joseph Graves, 2006. What We Know and What We Don’t Know: Human Genetic Variation and the Social Construction of Race

J. Kahn (2013) How a Drug Becomes "Ethnic" - Yale Journal of Health Policy, Law and Ethics, v4:1

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