Ancient DNA reveals differences in behaviour and sociality between brown bears and extinct cave bears
نویسندگان
چکیده
منابع مشابه
Ancient DNA reveals differences in behaviour and sociality between brown bears and extinct cave bears.
Ancient DNA studies have revolutionized the study of extinct species and populations, providing insights on phylogeny, phylogeography, admixture and demographic history. However, inferences on behaviour and sociality have been far less frequent. Here, we investigate the complete mitochondrial genomes of extinct Late Pleistocene cave bears and middle Holocene brown bears that each inhabited mult...
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The cave bear spread from Western Europe to the Near East during the Riss glaciation (250 KYA) before becoming extinct approximately 12 KYA. During that period, the climatic conditions were highly dynamic, oscillating between glacial and temperate episodes. Such events have constrained the geographic repartition of species, the movements of populations and shaped their genetic diversity. We ret...
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Models for the development of species distribution in Europe typically invoke restriction in three temperate Mediterranean refugia during glaciations, from where recolonization of central and northern Europe occurred. The brown bear, Ursus arctos, is one of the taxa from which this model is derived. Sequence data generated from brown bear fossils show a complex phylogeographical history for wes...
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The current study deals with the anterior premolar pattern in the cave and brown bear lineage, and its signifi cance in species determination. The occurrence of single premolars and its combinations in skulls and mandibles is recorded for various chronological and regional groups. Both lineages stay more “conservative” in the upper than in the lower dentition, but show contrasting reduction ten...
متن کاملAncient DNA analyses reveal high mitochondrial DNA sequence diversity and parallel morphological evolution of late pleistocene cave bears.
Cave bears (Ursus spelaeus) existed in Europe and western Asia until the end of the last glaciation some 10,000 years ago. To investigate the genetic diversity, population history, and relationship among different cave bear populations, we have determined mitochondrial DNA sequences from 12 cave bears that range in age from about 26,500 to at least 49,000 years and originate from nine caves. Th...
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ژورنال
عنوان ژورنال: Molecular Ecology
سال: 2016
ISSN: 0962-1083
DOI: 10.1111/mec.13800