In human evolution: the emergence of homo sapiens at one extreme is multiregional evolution, or the regional continuity model at the other is the african replacement, or “out of africa,” model. The multiregional hypothesis is a scientific model that provides an explanation for the pattern of human evolution proposed by milford h wolpoff in 1988 multiregional origin holds that the evolution of humanity from the beginning of the pleistocene 25 million years bp to the present day has been within a single, continuous human species. This was contrasted with the 'multiregional' model (thorne & wolpoff 1992), which interpreted the fossil record as indicative of the gradual evolution of modern human forms , and thus a single.
In the multiregional model (8-lo), recent human variation is seen as the product of the early and middle pleistocene radiation of homo erectus from africa geographic patterning of human evolution continuity of pattern from middle pleistocene continuity of (through maximum parsimony analysis) distinguish two main branches one leads. Multiregional human evolution in africa posted on august 20, a multiregional model of modern human origins, basin analysis: principles and application to petroleum play assessment, 3rd edition impact cratering: processes and products climate adaptation futures. Analysis of two competing theories on the origin of homo sapiens sapiens: multiregional theory vs the out of africa 2 model by sophie edwards sat, jul 07, 2012 t here are many competing theories regarding the origins of homo sapiens sapiens. Morphology, eve theory, homo sapiens, human evolution, modern homo sapiens, multiregional continuity, out -of -africa theory multiregional continuity theory, and also allow for some multivariate analysis that the variation in cranial shape.
33) state that “this idea [parallel evolution] is at the core of the multiregional model of human evolution (figure 212),” where “figure 212” refers to a figure of the same generic type as shown here in figure 1, but now with a few sporadic horizontal arrows added to depict gene flow. The multiregional hypothesis model of human evolution (abbreviated mre and known alternatively as regional continuity or polycentric model) argues that our earliest hominid ancestors (specifically homo erectus) evolved in africa and then radiated out into the world. Abstract a major and continuing debate in anthropology concerns the question of whether modern homo sapiens emerged as a separate species roughly 200,000 years ago in africa (recent african origin model) or as the consequence of evolution within a polytypic species spread across several regions of the old world (multiregional model.
The second theory, known as the multiregional continuity model, is based on fossil analysis as well it concludes that, although humans stem from common hominid parents in africa, humans simultaneously evolved in different regions of the world. The regional continuity model (or multiregional evolution model) advocated by milford wolpoff proposes that modern humans evolved more or less simultaneously in all major regions of the old world from local archaic humans. Multiregional evolution vs out of africa 17 dec 2005 it’s that time of the semester—exam time—and i’m getting a lot of questions from my students by e-mail. The multiregional model of modern human origins predicts that a group of features, recognized as characterizing the evolution of regional populations from their archaic regional ancestors, will consistently show higher incidence in those regions.
Wolpoff and caspari's race and human evolution indexes multiregional evolution: definition of to page 32, where a description in italics preceded by in a nutshell, the theory is that occupies about 60% of the page. Keywords: human evolution, population bottleneck, founder evect, race, climate the regional continuity or multiregional evolution model (wolpov, 1989) proposes templeton’s method of analysis is unlikely to work well in populations that have under. These results suggest multiregional evolution of autosomes and replacements of archaic y and mtdna by modern ones originating in east asia, thereby leading to a coherent account of modern human origins. Contrary to the claims of a recent study, the multiregional model, which states that modern humans evolved from several different groups of hominids (including neanderthals) that interbred at some point to produce modern humans, fails to explain the genetics seen in modern humans, neanderthals, and early modern humans.
The multiregional origin hypothesis of human species holds that some, or all, of the genetic variation between the contemporary human races is attributable to genetic inheritance from either homo. Multiregional evolution in the same issue as wilson and cann presented the 'out of africa 2' or 'eve hypothesis' alan g thorne and milford h wolpoff argued the polygenic or multiregional side of the modern human origins debate. Discuss the evidence for and against both the out of africa and the multiregional continuity models of modern human evolution describe the latest findings in dna analysis of neandertals provide two explanations for the genetic diversity seen in africa.
The argument for a multiregional theory of human evolution was first proposed by franz weidenreich and is based on his analysis of the peking man (foley) the peking man refers to the findings of homo erectus which were discovered in china between the years 1923 to 1927 (schmalzer. A valid critique of the multiregional continuity model of the origin of modern humans can be found in the fossil record, which shows that: modern variation originated in africa based on the herto skeleton. The multiregional continuity model of the origin of modern humans states that gene flow is the key to evolution, turning archaic h sapiens into modern humans in various parts of the world the assimilation model of the origin of modern humans states that. The multiregional continuity model begins with homo erectus migrating out of the african continent throughout eurasia as this migration occurs, populations are geographically isolated from one another and can thus evolve more rapidly.