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  • 1
    Publication Date: 2011-11-04
    Description: Despite decades of research, the roles of climate and humans in driving the dramatic extinctions of large-bodied mammals during the Late Quaternary period remain contentious. Here we use ancient DNA, species distribution models and the human fossil record to elucidate how climate and humans shaped the demographic history of woolly rhinoceros, woolly mammoth, wild horse, reindeer, bison and musk ox. We show that climate has been a major driver of population change over the past 50,000 years. However, each species responds differently to the effects of climatic shifts, habitat redistribution and human encroachment. Although climate change alone can explain the extinction of some species, such as Eurasian musk ox and woolly rhinoceros, a combination of climatic and anthropogenic effects appears to be responsible for the extinction of others, including Eurasian steppe bison and wild horse. We find no genetic signature or any distinctive range dynamics distinguishing extinct from surviving species, emphasizing the challenges associated with predicting future responses of extant mammals to climate and human-mediated habitat change.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4070744/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4070744/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lorenzen, Eline D -- Nogues-Bravo, David -- Orlando, Ludovic -- Weinstock, Jaco -- Binladen, Jonas -- Marske, Katharine A -- Ugan, Andrew -- Borregaard, Michael K -- Gilbert, M Thomas P -- Nielsen, Rasmus -- Ho, Simon Y W -- Goebel, Ted -- Graf, Kelly E -- Byers, David -- Stenderup, Jesper T -- Rasmussen, Morten -- Campos, Paula F -- Leonard, Jennifer A -- Koepfli, Klaus-Peter -- Froese, Duane -- Zazula, Grant -- Stafford, Thomas W Jr -- Aaris-Sorensen, Kim -- Batra, Persaram -- Haywood, Alan M -- Singarayer, Joy S -- Valdes, Paul J -- Boeskorov, Gennady -- Burns, James A -- Davydov, Sergey P -- Haile, James -- Jenkins, Dennis L -- Kosintsev, Pavel -- Kuznetsova, Tatyana -- Lai, Xulong -- Martin, Larry D -- McDonald, H Gregory -- Mol, Dick -- Meldgaard, Morten -- Munch, Kasper -- Stephan, Elisabeth -- Sablin, Mikhail -- Sommer, Robert S -- Sipko, Taras -- Scott, Eric -- Suchard, Marc A -- Tikhonov, Alexei -- Willerslev, Rane -- Wayne, Robert K -- Cooper, Alan -- Hofreiter, Michael -- Sher, Andrei -- Shapiro, Beth -- Rahbek, Carsten -- Willerslev, Eske -- R01 HG003229/HG/NHGRI NIH HHS/ -- England -- Nature. 2011 Nov 2;479(7373):359-64. doi: 10.1038/nature10574.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre for GeoGenetics, University of Copenhagen, Oster Voldgade 5-7, DK-1350 Copenhagen K, Denmark.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22048313" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bayes Theorem ; *Biota ; Bison ; Climate Change/*history ; DNA, Mitochondrial/analysis/genetics ; Europe ; *Extinction, Biological ; Fossils ; Genetic Variation ; Geography ; History, Ancient ; Horses ; Human Activities/*history ; Humans ; Mammals/genetics/*physiology ; Mammoths ; Molecular Sequence Data ; Population Dynamics ; Reindeer ; Siberia ; Species Specificity ; Time Factors
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 2
    Publication Date: 2011-11-04
    Description: The earliest anatomically modern humans in Europe are thought to have appeared around 43,000-42,000 calendar years before present (43-42 kyr cal BP), by association with Aurignacian sites and lithic assemblages assumed to have been made by modern humans rather than by Neanderthals. However, the actual physical evidence for modern humans is extremely rare, and direct dates reach no farther back than about 41-39 kyr cal BP, leaving a gap. Here we show, using stratigraphic, chronological and archaeological data, that a fragment of human maxilla from the Kent's Cavern site, UK, dates to the earlier period. The maxilla (KC4), which was excavated in 1927, was initially diagnosed as Upper Palaeolithic modern human. In 1989, it was directly radiocarbon dated by accelerator mass spectrometry to 36.4-34.7 kyr cal BP. Using a Bayesian analysis of new ultrafiltered bone collagen dates in an ordered stratigraphic sequence at the site, we show that this date is a considerable underestimate. Instead, KC4 dates to 44.2-41.5 kyr cal BP. This makes it older than any other equivalently dated modern human specimen and directly contemporary with the latest European Neanderthals, thus making its taxonomic attribution crucial. We also show that in 13 dental traits KC4 possesses modern human rather than Neanderthal characteristics; three other traits show Neanderthal affinities and a further seven are ambiguous. KC4 therefore represents the oldest known anatomically modern human fossil in northwestern Europe, fills a key gap between the earliest dated Aurignacian remains and the earliest human skeletal remains, and demonstrates the wide and rapid dispersal of early modern humans across Europe more than 40 kyr ago.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Higham, Tom -- Compton, Tim -- Stringer, Chris -- Jacobi, Roger -- Shapiro, Beth -- Trinkaus, Erik -- Chandler, Barry -- Groning, Flora -- Collins, Chris -- Hillson, Simon -- O'Higgins, Paul -- FitzGerald, Charles -- Fagan, Michael -- England -- Nature. 2011 Nov 2;479(7374):521-4. doi: 10.1038/nature10484.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Oxford Radiocarbon Accelerator Unit, Research Laboratory for Archaeology and the History of Art, University of Oxford, Oxford OX1 3QY, UK. thomas.higham@rlaha.ox.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22048314" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bayes Theorem ; Caves ; Dentition ; Emigration and Immigration/*history ; Fossils ; Great Britain ; History, Ancient ; Humans ; Maxilla/*anatomy & histology ; Neanderthals/anatomy & histology ; Radiometric Dating
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 3
    Publication Date: 2013-06-28
    Description: The rich fossil record of equids has made them a model for evolutionary processes. Here we present a 1.12-times coverage draft genome from a horse bone recovered from permafrost dated to approximately 560-780 thousand years before present (kyr BP). Our data represent the oldest full genome sequence determined so far by almost an order of magnitude. For comparison, we sequenced the genome of a Late Pleistocene horse (43 kyr BP), and modern genomes of five domestic horse breeds (Equus ferus caballus), a Przewalski's horse (E. f. przewalskii) and a donkey (E. asinus). Our analyses suggest that the Equus lineage giving rise to all contemporary horses, zebras and donkeys originated 4.0-4.5 million years before present (Myr BP), twice the conventionally accepted time to the most recent common ancestor of the genus Equus. We also find that horse population size fluctuated multiple times over the past 2 Myr, particularly during periods of severe climatic changes. We estimate that the Przewalski's and domestic horse populations diverged 38-72 kyr BP, and find no evidence of recent admixture between the domestic horse breeds and the Przewalski's horse investigated. This supports the contention that Przewalski's horses represent the last surviving wild horse population. We find similar levels of genetic variation among Przewalski's and domestic populations, indicating that the former are genetically viable and worthy of conservation efforts. We also find evidence for continuous selection on the immune system and olfaction throughout horse evolution. Finally, we identify 29 genomic regions among horse breeds that deviate from neutrality and show low levels of genetic variation compared to the Przewalski's horse. Such regions could correspond to loci selected early during domestication.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Orlando, Ludovic -- Ginolhac, Aurelien -- Zhang, Guojie -- Froese, Duane -- Albrechtsen, Anders -- Stiller, Mathias -- Schubert, Mikkel -- Cappellini, Enrico -- Petersen, Bent -- Moltke, Ida -- Johnson, Philip L F -- Fumagalli, Matteo -- Vilstrup, Julia T -- Raghavan, Maanasa -- Korneliussen, Thorfinn -- Malaspinas, Anna-Sapfo -- Vogt, Josef -- Szklarczyk, Damian -- Kelstrup, Christian D -- Vinther, Jakob -- Dolocan, Andrei -- Stenderup, Jesper -- Velazquez, Amhed M V -- Cahill, James -- Rasmussen, Morten -- Wang, Xiaoli -- Min, Jiumeng -- Zazula, Grant D -- Seguin-Orlando, Andaine -- Mortensen, Cecilie -- Magnussen, Kim -- Thompson, John F -- Weinstock, Jacobo -- Gregersen, Kristian -- Roed, Knut H -- Eisenmann, Vera -- Rubin, Carl J -- Miller, Donald C -- Antczak, Douglas F -- Bertelsen, Mads F -- Brunak, Soren -- Al-Rasheid, Khaled A S -- Ryder, Oliver -- Andersson, Leif -- Mundy, John -- Krogh, Anders -- Gilbert, M Thomas P -- Kjaer, Kurt -- Sicheritz-Ponten, Thomas -- Jensen, Lars Juhl -- Olsen, Jesper V -- Hofreiter, Michael -- Nielsen, Rasmus -- Shapiro, Beth -- Wang, Jun -- Willerslev, Eske -- RC2 HG005598/HG/NHGRI NIH HHS/ -- England -- Nature. 2013 Jul 4;499(7456):74-8. doi: 10.1038/nature12323. Epub 2013 Jun 26.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre for GeoGenetics, Natural History Museum of Denmark, University of Copenhagen, Oster Voldgade 5-7, 1350 Copenhagen K, Denmark. Lorlando@snm.ku.dk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23803765" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Conservation of Natural Resources ; DNA/analysis/genetics ; Endangered Species ; Equidae/classification/genetics ; *Evolution, Molecular ; Fossils ; Genetic Variation/genetics ; Genome/*genetics ; History, Ancient ; Horses/classification/*genetics ; *Phylogeny ; Proteins/analysis/chemistry/genetics ; Yukon Territory
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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