Pleistocene bears in the Swabian Jura (Germany): Genetic replacement, ecological displacement, extinctions and survival
Palaeogenetic investigations in three geographically close caves (Hohle Fels, Geißenklösterle, and Sirgenstein) in the Ach Valley near Blaubeuren (Swabian Jura) document the sudden replacement of Ursus spelaeus by Ursus ingressus around 28,000 14C BP. New radiocarbon dates suggest an earlier immigra...
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Online Access: | https://digitalcommons.usf.edu/kip_articles/4295 https://doi.org/10.1016/j.quaint.2011.03.060 |
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ftunisfloridatam:oai:digitalcommons.usf.edu:kip_articles-5294 2023-05-15T18:42:07+02:00 Pleistocene bears in the Swabian Jura (Germany): Genetic replacement, ecological displacement, extinctions and survival Münzeel, Susanne C. Stiller, Mahias Hofreiter, Michael Mittnik, Alissa Conard, Nicholas J. Bocherens, Hervé 2011-01-01T08:00:00Z https://digitalcommons.usf.edu/kip_articles/4295 https://doi.org/10.1016/j.quaint.2011.03.060 unknown Digital Commons @ University of South Florida https://digitalcommons.usf.edu/kip_articles/4295 https://doi.org/10.1016/j.quaint.2011.03.060 KIP Articles text 2011 ftunisfloridatam https://doi.org/10.1016/j.quaint.2011.03.060 2022-10-27T17:52:07Z Palaeogenetic investigations in three geographically close caves (Hohle Fels, Geißenklösterle, and Sirgenstein) in the Ach Valley near Blaubeuren (Swabian Jura) document the sudden replacement of Ursus spelaeus by Ursus ingressus around 28,000 14C BP. New radiocarbon dates suggest an earlier immigration of Ursus ingressus and at least a partial coexistence with Ursus spelaeus some 4500 years before the ultimate replacement. These two genetic types of cave bears used the same caves for hibernation and had the same herbivorous diet, as shown by the stable isotope results. In contrast, sympatric brown bears (Ursus arctos) exhibited a clearly different ecology, as shown by the carnivorous pattern of their isotopic signatures, and probably did not use the caves as dens before the Last Glacial Maximum (LGM). Once established, the younger cave bear (Ursus ingressus) remained the only cave bear for only another circa 2000 years after the last appearance of the classical cave bear (Ursus spelaeus) in the Ach Valley and elsewhere. The final appearance of cave bear (sensu lato) is now dated to 25,560 ± 130 BP, disproving a refuge area of this species in the Swabian Jura. After the extinction of cave bears (sensu lato), brown bears took over their cave dens and their nutritional niche as they shift to a diet dominated by plant food. Text Ursus arctos Digital Commons University of South Florida (USF) Jura ENVELOPE(13.501,13.501,68.062,68.062) Quaternary International 245 2 225 237 |
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Digital Commons University of South Florida (USF) |
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ftunisfloridatam |
language |
unknown |
description |
Palaeogenetic investigations in three geographically close caves (Hohle Fels, Geißenklösterle, and Sirgenstein) in the Ach Valley near Blaubeuren (Swabian Jura) document the sudden replacement of Ursus spelaeus by Ursus ingressus around 28,000 14C BP. New radiocarbon dates suggest an earlier immigration of Ursus ingressus and at least a partial coexistence with Ursus spelaeus some 4500 years before the ultimate replacement. These two genetic types of cave bears used the same caves for hibernation and had the same herbivorous diet, as shown by the stable isotope results. In contrast, sympatric brown bears (Ursus arctos) exhibited a clearly different ecology, as shown by the carnivorous pattern of their isotopic signatures, and probably did not use the caves as dens before the Last Glacial Maximum (LGM). Once established, the younger cave bear (Ursus ingressus) remained the only cave bear for only another circa 2000 years after the last appearance of the classical cave bear (Ursus spelaeus) in the Ach Valley and elsewhere. The final appearance of cave bear (sensu lato) is now dated to 25,560 ± 130 BP, disproving a refuge area of this species in the Swabian Jura. After the extinction of cave bears (sensu lato), brown bears took over their cave dens and their nutritional niche as they shift to a diet dominated by plant food. |
format |
Text |
author |
Münzeel, Susanne C. Stiller, Mahias Hofreiter, Michael Mittnik, Alissa Conard, Nicholas J. Bocherens, Hervé |
spellingShingle |
Münzeel, Susanne C. Stiller, Mahias Hofreiter, Michael Mittnik, Alissa Conard, Nicholas J. Bocherens, Hervé Pleistocene bears in the Swabian Jura (Germany): Genetic replacement, ecological displacement, extinctions and survival |
author_facet |
Münzeel, Susanne C. Stiller, Mahias Hofreiter, Michael Mittnik, Alissa Conard, Nicholas J. Bocherens, Hervé |
author_sort |
Münzeel, Susanne C. |
title |
Pleistocene bears in the Swabian Jura (Germany): Genetic replacement, ecological displacement, extinctions and survival |
title_short |
Pleistocene bears in the Swabian Jura (Germany): Genetic replacement, ecological displacement, extinctions and survival |
title_full |
Pleistocene bears in the Swabian Jura (Germany): Genetic replacement, ecological displacement, extinctions and survival |
title_fullStr |
Pleistocene bears in the Swabian Jura (Germany): Genetic replacement, ecological displacement, extinctions and survival |
title_full_unstemmed |
Pleistocene bears in the Swabian Jura (Germany): Genetic replacement, ecological displacement, extinctions and survival |
title_sort |
pleistocene bears in the swabian jura (germany): genetic replacement, ecological displacement, extinctions and survival |
publisher |
Digital Commons @ University of South Florida |
publishDate |
2011 |
url |
https://digitalcommons.usf.edu/kip_articles/4295 https://doi.org/10.1016/j.quaint.2011.03.060 |
long_lat |
ENVELOPE(13.501,13.501,68.062,68.062) |
geographic |
Jura |
geographic_facet |
Jura |
genre |
Ursus arctos |
genre_facet |
Ursus arctos |
op_source |
KIP Articles |
op_relation |
https://digitalcommons.usf.edu/kip_articles/4295 https://doi.org/10.1016/j.quaint.2011.03.060 |
op_doi |
https://doi.org/10.1016/j.quaint.2011.03.060 |
container_title |
Quaternary International |
container_volume |
245 |
container_issue |
2 |
container_start_page |
225 |
op_container_end_page |
237 |
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1766231722804903936 |