Matches in SemOpenAlex for { <https://semopenalex.org/work/W2000314863> ?p ?o ?g. }
- W2000314863 endingPage "16421" @default.
- W2000314863 startingPage "16416" @default.
- W2000314863 abstract "The environmental backdrop to the evolution and spread of early Homo sapiens in East Africa is known mainly from isolated outcrops and distant marine sediment cores. Here we present results from new scientific drill cores from Lake Malawi, the first long and continuous, high-fidelity records of tropical climate change from the continent itself. Our record shows periods of severe aridity between 135 and 75 thousand years (kyr) ago, when the lake's water volume was reduced by at least 95%. Surprisingly, these intervals of pronounced tropical African aridity in the early late-Pleistocene were much more severe than the Last Glacial Maximum (LGM), the period previously recognized as one of the most arid of the Quaternary. From these cores and from records from Lakes Tanganyika (East Africa) and Bosumtwi (West Africa), we document a major rise in water levels and a shift to more humid conditions over much of tropical Africa after ≈70 kyr ago. This transition to wetter, more stable conditions coincides with diminished orbital eccentricity, and a reduction in precession-dominated climatic extremes. The observed climate mode switch to decreased environmental variability is consistent with terrestrial and marine records from in and around tropical Africa, but our records provide evidence for dramatically wetter conditions after 70 kyr ago. Such climate change may have stimulated the expansion and migrations of early modern human populations." @default.
- W2000314863 created "2016-06-24" @default.
- W2000314863 creator A5002675221 @default.
- W2000314863 creator A5005817697 @default.
- W2000314863 creator A5008259441 @default.
- W2000314863 creator A5020100986 @default.
- W2000314863 creator A5024861960 @default.
- W2000314863 creator A5027280928 @default.
- W2000314863 creator A5029326618 @default.
- W2000314863 creator A5034581505 @default.
- W2000314863 creator A5035731772 @default.
- W2000314863 creator A5052236568 @default.
- W2000314863 creator A5052607467 @default.
- W2000314863 creator A5054483396 @default.
- W2000314863 creator A5055197542 @default.
- W2000314863 creator A5068358829 @default.
- W2000314863 creator A5069340527 @default.
- W2000314863 creator A5071531279 @default.
- W2000314863 creator A5076582963 @default.
- W2000314863 creator A5084111372 @default.
- W2000314863 creator A5087547445 @default.
- W2000314863 date "2007-10-16" @default.
- W2000314863 modified "2023-10-01" @default.
- W2000314863 title "East African megadroughts between 135 and 75 thousand years ago and bearing on early-modern human origins" @default.
- W2000314863 cites W1964543313 @default.
- W2000314863 cites W1972601372 @default.
- W2000314863 cites W1973850832 @default.
- W2000314863 cites W1976900685 @default.
- W2000314863 cites W1977623115 @default.
- W2000314863 cites W1982631046 @default.
- W2000314863 cites W1989105446 @default.
- W2000314863 cites W1992688250 @default.
- W2000314863 cites W1993350858 @default.
- W2000314863 cites W1999929343 @default.
- W2000314863 cites W2008205524 @default.
- W2000314863 cites W2010478315 @default.
- W2000314863 cites W2023864659 @default.
- W2000314863 cites W2024150465 @default.
- W2000314863 cites W2026438216 @default.
- W2000314863 cites W2027636670 @default.
- W2000314863 cites W2036204058 @default.
- W2000314863 cites W2042117765 @default.
- W2000314863 cites W2043810485 @default.
- W2000314863 cites W2048371970 @default.
- W2000314863 cites W2048585332 @default.
- W2000314863 cites W2051336173 @default.
- W2000314863 cites W2057366298 @default.
- W2000314863 cites W2057995699 @default.
- W2000314863 cites W2066739634 @default.
- W2000314863 cites W2072470725 @default.
- W2000314863 cites W2073855254 @default.
- W2000314863 cites W2081157819 @default.
- W2000314863 cites W2087683608 @default.
- W2000314863 cites W2094173026 @default.
- W2000314863 cites W2115688047 @default.
- W2000314863 cites W2118766103 @default.
- W2000314863 cites W2118877379 @default.
- W2000314863 cites W2121829211 @default.
- W2000314863 cites W2123345923 @default.
- W2000314863 cites W2124757012 @default.
- W2000314863 cites W2129630929 @default.
- W2000314863 cites W2133520730 @default.
- W2000314863 cites W2146695254 @default.
- W2000314863 cites W2172045587 @default.
- W2000314863 cites W2178484906 @default.
- W2000314863 cites W4244746274 @default.
- W2000314863 cites W4306293736 @default.
- W2000314863 doi "https://doi.org/10.1073/pnas.0703874104" @default.
- W2000314863 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/1964544" @default.
- W2000314863 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/17785420" @default.
- W2000314863 hasPublicationYear "2007" @default.
- W2000314863 type Work @default.
- W2000314863 sameAs 2000314863 @default.
- W2000314863 citedByCount "374" @default.
- W2000314863 countsByYear W20003148632012 @default.
- W2000314863 countsByYear W20003148632013 @default.
- W2000314863 countsByYear W20003148632014 @default.
- W2000314863 countsByYear W20003148632015 @default.
- W2000314863 countsByYear W20003148632016 @default.
- W2000314863 countsByYear W20003148632017 @default.
- W2000314863 countsByYear W20003148632018 @default.
- W2000314863 countsByYear W20003148632019 @default.
- W2000314863 countsByYear W20003148632020 @default.
- W2000314863 countsByYear W20003148632021 @default.
- W2000314863 countsByYear W20003148632022 @default.
- W2000314863 countsByYear W20003148632023 @default.
- W2000314863 crossrefType "journal-article" @default.
- W2000314863 hasAuthorship W2000314863A5002675221 @default.
- W2000314863 hasAuthorship W2000314863A5005817697 @default.
- W2000314863 hasAuthorship W2000314863A5008259441 @default.
- W2000314863 hasAuthorship W2000314863A5020100986 @default.
- W2000314863 hasAuthorship W2000314863A5024861960 @default.
- W2000314863 hasAuthorship W2000314863A5027280928 @default.
- W2000314863 hasAuthorship W2000314863A5029326618 @default.
- W2000314863 hasAuthorship W2000314863A5034581505 @default.
- W2000314863 hasAuthorship W2000314863A5035731772 @default.
- W2000314863 hasAuthorship W2000314863A5052236568 @default.
- W2000314863 hasAuthorship W2000314863A5052607467 @default.