Dynamics of Pleistocene population extinctions in Beringian brown bears

I Barnes, P Matheus, B Shapiro, D Jensen, A Cooper - Science, 2002 - science.org
The climatic and environmental changes associated with the last glaciation (90,000 to
10,000 years before the present; 90 to 10 ka BP) are an important example of the effects of …

Rise and fall of the Beringian steppe bison

B Shapiro, AJ Drummond, A Rambaut, MC Wilson… - Science, 2004 - science.org
The widespread extinctions of large mammals at the end of the Pleistocene epoch have
often been attributed to the depredations of humans; here we present genetic evidence that …

Genomic sequencing of Pleistocene cave bears

JP Noonan, M Hofreiter, D Smith, JR Priest, N Rohland… - Science, 2005 - science.org
Despite the greater information content of genomic DNA, ancient DNA studies have largely
been limited to the amplification of mitochondrial sequences. Here we describe …

Population genetics of Ice Age brown bears

JA Leonard, RK Wayne… - Proceedings of the …, 2000 - National Acad Sciences
The Pleistocene was a dynamic period for Holarctic mammal species, complicated by
episodes of glaciation, local extinctions, and intercontinental migration. The genetic …

Glacial ice supports a distinct and undocumented polar bear subpopulation persisting in late 21st-century sea-ice conditions

KL Laidre, MA Supple, EW Born, EV Regehr, Ø Wiig… - Science, 2022 - science.org
Polar bears are susceptible to climate warming because of their dependence on sea ice,
which is declining rapidly. We present the first evidence for a genetically distinct and …

Withering away—25,000 years of genetic decline preceded cave bear extinction

M Stiller, G Baryshnikov, H Bocherens… - Molecular biology …, 2010 - academic.oup.com
The causes of the late Pleistocene megafaunal extinctions are still enigmatic. Although the
fossil record can provide approximations for when a species went extinct, the timing of its …

[HTML][HTML] Ancient DNA analysis reveals divergence of the cave bear, Ursus spelaeus, and brown bear, Ursus arctos, lineages

O Loreille, L Orlando, M Patou-Mathis, M Philippe… - Current Biology, 2001 - cell.com
The cave bear, Ursus spelaeus, represents one of the most frequently found paleontological
remains from the Pleistocene in Europe. The species has always been confined to Europe …

Arctic-adapted dogs emerged at the Pleistocene–Holocene transition

MHS Sinding, S Gopalakrishnan, J Ramos-Madrigal… - Science, 2020 - science.org
Although sled dogs are one of the most specialized groups of dogs, their origin and
evolution has received much less attention than many other dog groups. We applied a …

[HTML][HTML] Retreat and extinction of the Late Pleistocene cave bear (Ursus spelaeus sensu lato)

M Baca, D Popović, K Stefaniak, A Marciszak… - The Science of …, 2016 - Springer
The cave bear (Ursus spelaeus sensu lato) is a typical representative of Pleistocene
megafauna which became extinct at the end of the Last Glacial. Detailed knowledge of cave …

Species-specific responses of Late Quaternary megafauna to climate and humans

ED Lorenzen, D Nogués-Bravo, L Orlando, J Weinstock… - Nature, 2011 - nature.com
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 …