학술논문

Did Our Species Evolve in Subdivided Populations across Africa, and Why Does It Matter?
Document Type
article
Source
Trends in Ecology & Evolution. 33(8)
Subject
Biological Sciences
Ecology
Africa
Animals
Archaeology
Biological Evolution
Ecosystem
Fossils
Genetics
Population
Geography
Hominidae
Humans
African origins
Middle Stone Age
evolutionary genetics
human evolution
paleoanthropology
paleoecology
Environmental Sciences
Evolutionary Biology
Biological sciences
Environmental sciences
Language
Abstract
We challenge the view that our species, Homo sapiens, evolved within a single population and/or region of Africa. The chronology and physical diversity of Pleistocene human fossils suggest that morphologically varied populations pertaining to the H. sapiens clade lived throughout Africa. Similarly, the African archaeological record demonstrates the polycentric origin and persistence of regionally distinct Pleistocene material culture in a variety of paleoecological settings. Genetic studies also indicate that present-day population structure within Africa extends to deep times, paralleling a paleoenvironmental record of shifting and fractured habitable zones. We argue that these fields support an emerging view of a highly structured African prehistory that should be considered in human evolutionary inferences, prompting new interpretations, questions, and interdisciplinary research directions.