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25/08/2015 - Mammoth remains - as far as the eye can see

Frankfurt, 08/25/08.2015. Ice Age paleontologist Prof. Dr. Ralf-Dietrich Kahlke of the Senckenberg Research Station for Quaternary Paleontology in Weimar recorded the maximum geographic distribution of the woolly mammoth during the last Ice Age and published the most accurate global map in this regard. The ice-age pachyderms populated a total area of 33,301,000 square kilometers and may thus be called the most successful large mammals of this era. The study, recently published online in the scientific journal “Quaternary International,” determined that the distribution was limited by a number of climate-driven as well as climate-independent factors.

Prof. R.-D. Kahlke begutachtet den frisch konservierten Oberschenkelknochen eines Mammuts  © T. Korn/Senckenberg Weimar
Prof. R.-D. Kahlke inspects the newly preserved
femur of a mammoth  © T. Korn/Senckenberg Weimar

The mammoth is the quintessential symbol of the Ice Age – and the status of these shaggy pachyderms has now been confirmed scientifically. “The recent research findings show that during the last Ice Age, mammoths were the most widely distributed large mammals, thus rightfully serving as a flagship species of the glacial era,” according to Prof. Dr. Ralf-Dietrich Kahlke, an Ice Age researcher at the Senckenberg Research Station for Quaternary Paleontology in Weimar.

Kahlke has summarized the mammoth’s distribution during the most recent Ice Age, i.e., the period between approx. 110,000 and 12,000 years ago, on a worldwide map. All in all, the Weimar paleontologist determined a total distribution area of 33,301,000 square kilometers for these large mammals – almost 100 times the area of Germany today. From Portugal in the southwest across Central and Eastern Europe, Mongolia, Northern China, South Korea and Japan up to Northeastern Siberia, and thence to the American Midwest and Eastern Canada, from the shelf regions of the Arctic Ocean and Northwestern Europe to the bottom of the Adriatic Sea and to the mountains of Crimea: the fossil remains of woolly mammoths have been found everywhere.

Kompletter linker Stoßzahn eines eiszeitlichen Fellmammuts (Mammuthus primigenius) aus der Sibirischen Arktis der Tajmyr-Halbinsel. Jeder Einzelfund trägt zur Erweiterung der Kenntnis der einstigen Verbreitung der Eiszeitriesen bei. © R.-D. Kahlke/ Senckenberg Weimar
 Complete left tusk of an ice-age Woolly Mammoth
(Mammuthus primigenius) from the Siberian Arctic on the
Taimyr Peninsula. Each individual discovery increases our
knowledge about 'the past distribution of these Ice Age giants.
© R.-D. Kahlke/ Senckenberg Weimar

“We related the computed distribution area to the real land surface at that time, thus generating the most precise map to date regarding the global habitats of the woolly mammoth,” explains Kahlke, and he adds, “Such detailed knowledge regarding the distribution area is not even available for many species of animals alive today.”

 The generated map is based on decades of surveys of thousands of excavation sites on three continents. “Even sites under water, off the North American Atlantic shore and the North Sea, were taken into account. Due to the lower sea levels during the Ice Age – a large volume of water was bound in glaciers – these areas had fallen dry and were also inhabited by Mammuthus primigenius,” according to Kahlke.

Der sibirische Permafrostboden enthält die am besten überlieferten Mammutfunde der Welt. Ein frisch entdeckter Stoßzahn wird zur Untersuchung abtransportiert. © R.-D. Kahlke/ Senckenberg Weimar
The Siberian permafrost soil contains the best preserved
mammoth remains in the world. A recently discovered tusk is
carried off for inspection. . © R.-D. Kahlke/ Senckenberg Weimar

 

Only the ice-age bison (Bison priscus) had a widespread distribution similar to that of the mammoths. Kahlke explains, “The bison were clearly more variable than the woolly mammoths. Obviously, the mammoths had a higher tolerance toward various environmental factors and they were able to successfully settle in a variety of rather different open landscapes.”

But there were certain factors that limited the distribution of the hirsute pachyderms: glaciers, mountain chains, semi-deserts and deserts, as well as changes in sea level and shifts in vegetation placed restrictions on the mammoths’ distribution area. “The analysis of these limiting factors is useful in understanding the distribution of fossil species and their extinction – as with the mammoths toward the end of the last Ice Age. In addition, the data aid in comprehending current changes in the distribution areas of recent animal species,” offers Kahlke in summary.


 

Contact
Prof. Dr. Ralf-Dietrich Kahlke
Senckenberg Research Station for Quaternary Paleontology
Phone 03643- 493093330
rdkahlke@senckenberg.de

Judith Jördens
Press Office
Senckenberg Gesellschaft für Naturforschung
Phone 069- 7542 1434
pressestelle@senckenberg.de


Publication
Kahlke, R.-D., The maximum geographic extension of Late Pleistocene Mammuthus primigenius (Proboscidea, Mammalia) and its limiting factors, Quaternary International (2015), http://dx.doi.org/10.1016/j.quaint.2015.03.023

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To study and understand nature with its limitless diversity of living creatures and to preserve and manage it in a sustainable fashion as the basis of life for future generations – this has been the goal of the Senckenberg Gesellschaft für Naturforschung (Senckenberg Nature Research Society) for almost 200 years. This integrative “geobiodiversity research” and the dissemination of research and science are among Senckenberg’s main tasks. Three nature museums in Frankfurt, Görlitz and Dresden display the diversity of life and the earth’s development over millions of years. The Senckenberg Nature Research Society is a member of the Leibniz Association. The Senckenberg Nature Museum in Frankfurt am Main is supported by the City of Frankfurt am Main as well as numerous other partners. Additional information can be found at www.senckenberg.de.

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Alexandra Donecker
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Judith Jördens
Tel.: 069 7542-1434
Mobil: 0172-5842340

Email: pressestelle@senckenberg.de

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