Climatic windows for human migration out of Africa in the past 300,000 years.
Climatic windows for human migration out of Africa in the past 300,000 years.
复制标题
DOI：
10.1038/s41467-021-24779-1
复制
发表时间：
2021-08-24
影响因子：
16.6
通讯作者：
Manica A
中科院分区：
文献类型：
--
作者：
Beyer RM;Krapp M;Eriksson A;Manica A
虽然现代人类的非洲起源已经得到了很好的证实，但由于化石的稀缺和缺乏适当古老的古代DNA，他们向欧亚大陆扩张的时间和路线是激烈争论的主题。在这里，我们使用高分辨率的古气候重建来估计在过去的30万年里，人类离开非洲大陆的降雨量有多困难。然后，我们结合联合收割机这些结果与人类学和生态学动机的狩猎采集者生存所需的最低降雨量的估计，使我们能够重建何时，以及沿着哪些地理路径，非洲的扩张在气候上是可行的。与欧亚大陆的潜在接触的估计时间和路线与人类从非洲向外扩张的考古学和遗传学证据相一致，突出了古气候变化对现代人类扩散的关键作用。目前还不清楚现代人类是何时以及通过哪条路线走出非洲的。在这里，Beyer等人使用古气候重建和人类降水需求的估计来评估过去30万年来欧亚大陆空间和时间迁移走廊的生存能力。
Whilst an African origin of modern humans is well established, the timings and routes of their expansions into Eurasia are the subject of heated debate, due to the scarcity of fossils and the lack of suitably old ancient DNA. Here, we use high-resolution palaeoclimate reconstructions to estimate how difficult it would have been for humans in terms of rainfall availability to leave the African continent in the past 300k years. We then combine these results with an anthropologically and ecologically motivated estimate of the minimum level of rainfall required by hunter-gatherers to survive, allowing us to reconstruct when, and along which geographic paths, expansions out of Africa would have been climatically feasible. The estimated timings and routes of potential contact with Eurasia are compatible with archaeological and genetic evidence of human expansions out of Africa, highlighting the key role of palaeoclimate variability for modern human dispersals. It is still unclear when and by which route modern humans expanded out of Africa. Here, Beyer et al. use paleoclimate reconstructions and estimates of human precipitation requirements to evaluate the survivability of spatial and temporal migration corridors to Eurasia over the last 300,000 years.
登录
查看更多内容
DOI：
10.1002/joc.5086
发表时间：
2017-10-01
期刊：
INTERNATIONAL JOURNAL OF CLIMATOLOGY
影响因子：
--
作者：
Fick, Stephen E.;Hijmans, Robert J.
通讯作者：
Hijmans, Robert J.
影响因子：
2.2
作者：
Drake, Nick A.;Breeze, Paul;Parker, Adrian
通讯作者：
Parker, Adrian
影响因子：
3.2
作者：
Delagnes, Anne;Tribolo, Chantal;Macchiarelli, Roberto
通讯作者：
Macchiarelli, Roberto
影响因子：
3.7
作者：
Groucutt HS;Petraglia MD;Bailey G;Scerri EM;Parton A;Clark-Balzan L;Jennings RP;Lewis L;Blinkhorn J;Drake NA;Breeze PS;Inglis RH;Devès MH;Meredith-Williams M;Boivin N;Thomas MG;Scally A
通讯作者：
Scally A
影响因子：
16.8
作者：
Groucutt HS;Grün R;Zalmout IAS;Drake NA;Armitage SJ;Candy I;Clark-Wilson R;Louys J;Breeze PS;Duval M;Buck LT;Kivell TL;Pomeroy E;Stephens NB;Stock JT;Stewart M;Price GJ;Kinsley L;Sung WW;Alsharekh A;Al-Omari A;Zahir M;Memesh AM;Abdulshakoor AJ;Al-Masari AM;Bahameem AA;Al Murayyi KMS;Zahrani B;Scerri ELM;Petraglia MD
通讯作者：
Petraglia MD