The lower molar (m1) of cave bears from Late Pleistocene localities of the Urals was studied employing the methods of traditional morphometry and geometric morphometrics. On the basis of the size and shape variation of m1, the small cave bear (Ursus ex gr. savini-rossicus) was found to have been a part of the faunas from the caves Skazka, Viasher, Dynamitnaya, Chudesnitsa, and Chernye Kosti. The small cave bear presence in faunas from the Medvezhya, Makhnevskaya Ledyanaya, Asha 1, Ignat'evskaya, and Barsuchii Dol caves was confirmed as well. The species range of the small cave bear encompassed the Northern, Middle, and Southern Urals in the Late Pleistocene. The ranges of the small cave bear and cave bear (Ursus kanivetz) overlapped from the beginning (marine isotope stage 5e) to the middle (middle marine isotope stage 3) of the Late Pleistocene.
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http://dx.doi.org/10.1134/S0012496621040037 | DOI Listing |
PLoS One
November 2024
Laboratório de Entomologia, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil.
Semiaquatic bugs of the subfamily Microveliinae (Hemiptera, Heteroptera, Gerridae) live in a wide range of habitats, including streams, rivers, lakes, lagoons, estuaries, mangroves, caves, crab holes, tree holes and bromeliads. A total of 120 species has been recorded from the Neotropical region, of which 11 bear modified pretarsal structures on the middle leg. They belong to the genera Euvelia Drake, 1957 (seven Neotropical species), Husseyella Herring, 1955 (three Neotropical species), and Xiphovelia Lundblad, 1933 (mainly Asian genus with one Neotropical species assigned to it).
View Article and Find Full Text PDFIsotopes Environ Health Stud
July 2024
Societatea Națională de Speologie, Cluj-Napoca, Romania.
Heliyon
June 2024
College of Information and Cyber Security, People's Public Security University of China, Beijing, 100038, China.
Sci Rep
April 2024
Department of Earth Sciences, University of Florence, Florence, Italy.
This comprehensive study examines fossil remains from Niedźwiedzia Cave in the Eastern Sudetes, offering detailed insights into the palaeobiology and adversities encountered by the Pleistocene cave bear Ursus spelaeus ingressus. Emphasising habitual cave use for hibernation and a primarily herbivorous diet, the findings attribute mortality to resource scarcity during hibernation and habitat fragmentation amid climate shifts. Taphonomic analysis indicates that the cave was extensively used by successive generations of bears, virtually unexposed to the impact of predators.
View Article and Find Full Text PDFNat Ecol Evol
March 2024
Globe Institute, University of Copenhagen, Copenhagen, Denmark.
Recent excavations at Ranis (Germany) identified an early dispersal of Homo sapiens into the higher latitudes of Europe by 45,000 years ago. Here we integrate results from zooarchaeology, palaeoproteomics, sediment DNA and stable isotopes to characterize the ecology, subsistence and diet of these early H. sapiens.
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