Results 11 to 20 of about 66,421 (353)

Restos esqueléticos de osos (Ursus arctos y Ursus spelaeus) en el oriente de la Región Cantábrica. Distribución geográfica y análisis biométrico [PDF]

open access: greenMunibe Antropologia-Arkeologia, 2015
En este trabajo se presenta un amplio conjunto paleontológico recuperado en treinta y cuatro cavidades situadas en la mitad oriental de los Montes Vascos. Los restos estudiados fueron recopilados durante cuatro décadas por Mario Laurino.
Aritza Villaluenga
openalex   +1 more source

Brown Bear (Ursus arctos; Eurasia) [PDF]

open access: bronze, 2020
J. Swenson   +33 more
semanticscholar   +2 more sources

Clarification of the status of Paraferreola Šustera, 1912 as an available genus name in Pompilidae, and the identity of Sphex ursus Fabricius, 1793 in Mutillidae (Hymenoptera) [PDF]

open access: yesJournal of Hymenoptera Research, 2022
The usage of Paraferreola Šustera, 1912 since its proposal as a genus of spider wasps, but based on a misidentified type species (Sphex ursus Fabricius, 1793, actually a species of Mutillidae), shows that it continues to be applied (although infrequently)
Denis J. Brothers   +2 more
doaj   +3 more sources

Optimization of Energy Management in a City Bus Powered by the Hydrogen Fuel Cells

open access: yesCommunications, 2021
The article describes the design and optimization of operation of an electric bus  powered  by  the  hydrogen  fuel  cells.  At  the  beginning,  an  approach  to  design  of  a  12-meter  urban  bus,  powered  by  hydrogen,  is  presented,  as  well  as 
Arkadiusz Małek   +3 more
doaj   +1 more source

Members of the family Ursidae in the Museum of Nature of Kharkiv University and their craniological features [PDF]

open access: yesTheriologia Ukrainica, 2019
The exhibition and scientific collection of the Museum of Nature currently deposit 16 specimens of the family Ursidae (bears), which belong to three species and 6 subspecies.
Yuriy Iliukhin
doaj   +1 more source

DNA, spectroscopic and geochemical analyses of bone fragments and associated speleothems in Postojna cave, Slovenia

open access: yesActa Carsologica, 2020
a loose/broken stalagmite containing small fragments of cemented bones were collected from the Postojna Cave to investigate whether deoxyribonucleic acid (DNA) can be determined.
Matej Lipar   +6 more
doaj   +1 more source

Changes in the distribution of nesting Arctic seaducks are not strongly related to variation in polar bear presence

open access: yesArctic Science, 2020
Contemporary climate change is predicted to expose some species to altered predation regimes. Losses of Arctic sea ice are causing polar bears to increasingly forage on colonial seaduck eggs in lieu of ice-based hunting of marine mammals.
Cody J. Dey   +3 more
doaj   +1 more source

Dietary ecology of the extinct cave bear: Evidence of omnivory as inferred from dental microwear textures [PDF]

open access: yesActa Palaeontologica Polonica, 2016
The diet of the extinct European cave bear, Ursus spelaeus, has widely been debated. Diverging from the extant brown bear (Ursus arctos) approximately 1.2 million years ago, the cave bear is one of the most ubiquitous fossil bears occurring in Europe ...
D. Brent Jones, Larisa R.G. DeSantis
doaj   +1 more source

Hydrochemical properties of springs Slatinski Izvor and Solenica (Republic of Macedonia)

open access: yesActa Carsologica, 2015
Hydrochemical properties of water samples from the Slatinski Izvor spring and Solenica spring were analyzed during the period between December 2011 – November 2013. The wider area around the springs belongs to two tectonic units.
Biljana Gichevski   +3 more
doaj   +1 more source

Anthropogenic food: an emerging threat to polar bears

open access: yesOryx, 2023
Supplemental food from anthropogenic sources is a source of conflict with humans for many wildlife species. Food-seeking behaviours by black bears Ursus americanus and brown bears Ursus arctos can lead to property damage, human injury and mortality of ...
Tom S. Smith   +7 more
doaj   +1 more source

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