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Artículos de revistas sobre el tema "Ursus arcto"

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Autor: Grafiati
Publicado: 11 de marzo de 2023

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1

Pasitschniak-Arts, Maria. "Ursus arctos". Mammalian Species, n.º 439 (23 de abril de 1993): 1. http://dx.doi.org/10.2307/3504138.

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2

Winer, J. N., B. Arzi, S. Döring, P. H. Kass y F. J. M. Verstraete. "Dental and Temporomandibular Joint Pathology of the North American Brown Bear ( Ursus arctos horribilis , Ursus arctos middendorffi and Ursus arctos sitkensis )". Journal of Comparative Pathology 157, n.º 2-3 (agosto de 2017): 90–102. http://dx.doi.org/10.1016/j.jcpa.2017.06.006.

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3

Britton, Ann P., Julie Bidulka, Andrea Scouras, Helen Schwantje y Tomy Joseph. "Fatal hepatic sarcocystosis in a free-ranging grizzly bear cub associated with Sarcocystis canis–like infection". Journal of Veterinary Diagnostic Investigation 31, n.º 2 (30 de enero de 2019): 303–6. http://dx.doi.org/10.1177/1040638719826627.

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We describe herein fatal hepatic sarcocystosis in a free-ranging grizzly bear ( Ursus arctos horribilis) cub with apicomplexan infection of the liver and brain, both demonstrating 100% homology for Sarcocystis canis and S. arctosi. Fatal hepatic sarcocystosis in dogs has been etiologically associated with intrahepatic schizonts of S. canis. In black and polar bears, a S. canis–like organism produces schizonts in the liver and massive hepatic necrosis. Although intramuscular sarcocysts, taxa S. arctosi and S. ursusi, have been described in healthy brown and black bears, respectively, they have not been detected in bears with hepatic sarcocystosis, to our knowledge, and it is currently unknown whether bears represent an aberrant or intermediate host.
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4

De Torres Pérez-Hidalgo, Trinidad. "La región auditiva en los osos del pleistoceno europeo". Spanish Journal of Palaeontology 2, n.º 1 (5 de septiembre de 2022): 41. http://dx.doi.org/10.7203/sjp.25214.

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Este trabajo trata de la descripción y comparación de las principales características morfológicas de la región auditiva de los grandes osos del Pleistoceno europeo: Ursus prearctos Boule, Ursus deningeri von Reichenau, Ursus spelaeus Rosenmüller-Heinroth y Ursus arctos Linneo. Además de una serie de diferencias morfológicas menores, de origen e importancia inciertos, las más importantes son: bulla tympánica con la cara ventral aplanada y septum indiviso sin septas en U. prearctos y U.arctos, mientras que en las especies espeloides, U. deningeri y fundamentalmente U. spelaeus, la cara ventral de la bulla es irregular y el septum está dividido por una septa bien marcada. Estas morfologías probablemente estén ligadas a una mayor capacidad de resonancia de la bulla. El petroso es relativamente mayor en U.prearctos y U. arctos que en U. deningeri y U. spelaeus.
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5

Elgmork, Kåre y Even Tjørve. "Brown bear Ursus arctos scavenging patterns". Wildlife Biology 1, n.º 1 (enero de 1995): 239–42. http://dx.doi.org/10.2981/wlb.1995.0029.

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6

Vougiouklakis, Theodore. "Fatal Brown Bear (Ursus arctos) Attack". American Journal of Forensic Medicine and Pathology 27, n.º 3 (septiembre de 2006): 266–67. http://dx.doi.org/10.1097/01.paf.0000220930.00053.43.

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7

Seryodkin, Ivan V. "Daily movements of Brown bears (Ursus arctos) in Kamchatka and Sakhalin". Vestnik Tomskogo gosudarstvennogo universiteta. Biologiya, n.º 49 (marzo de 2020): 107–27. http://dx.doi.org/10.17223/19988591/49/6.

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8

Radisic, B., M. Sindicic, D. Huber, J. Kusak, T. Gomercic, D. Vnuk, D. Maticic y A. Slavica. "Ovariectomy of a brown bear (Ursus arctos): a case report". Veterinární Medicína 55, No. 7 (17 de agosto de 2010): 353–57. http://dx.doi.org/10.17221/2965-vetmed.

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Reproductive control is regularly implemented in bear facilities to prevent crowding of enclosures and surplus animals. Ovariectomy may represent an efficient method of sterilizing bears yet has not been reported in the literature. A 73 kg female brown bear, age two years and three months, was anesthetized for ovariectomy with tiletamin and zolazepam (Zoletil<sup>&reg;</sup>, Virbac S.A., Carros Cedex, France) and medetomidin hydrochloride (Domitor<sup>&reg;</sup>, Pfizer Animal Health, New York, USA). A 25 cm midline incision that extended from the umbilicus to the pubic brim was made. The suspensory ligament was stretched and blunt dissected so that ovaries in bursa were exposed on the surgical field. A "Figure 8" ligature was placed between two forcepses and a circumferential ligature was placed around proximal forceps at the ovarian pedicle. Another "Figure 8" ligature was placed between two forcepses and a circumferential ligature was placed around distal forceps at the cranial tip of the uterine horn. No surgical complications occurred, and no complications have transpired during the 12 month post-operative period.
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9

Yoon, Byung Il, Jung Keun Lee, Jin Hyun Kim, Nam Shik Shin, Soo Wahn Kwon, Gi Hwan Lee y Dae Yong Kim. "Lymphosarcoma in a brown bear (Ursus arctos)". Journal of Veterinary Science 2, n.º 2 (2001): 143. http://dx.doi.org/10.4142/jvs.2001.2.2.143.

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10

Laikre, Linda, Robert Andrén, Hans-Ove Larsson y Nils Ryman. "Inbreeding depression in brown bear Ursus arctos". Biological Conservation 76, n.º 1 (1996): 69–72. http://dx.doi.org/10.1016/0006-3207(95)00084-4.

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11

Wald, Eric J. "Osteophagy by the Grizzly Bear,Ursus arctos". Northwest Science 85, n.º 3 (agosto de 2011): 491–96. http://dx.doi.org/10.3955/046.085.0307.

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12

Baryshnikov, G. F. "Late pleistocene Ursidae and Mustelidae remains (Mammalia, Carnivora) from Geographical Society Cave in the Russian Far East". Proceedings of the Zoological Institute RAS 319, n.º 1 (25 de marzo de 2015): 3–22. http://dx.doi.org/10.31610/trudyzin/2015.319.1.3.

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The paleontological collection from Geographical Society Cave located in southern part of Primorskii Territory is found to comprise 5 species of ursids and mustelids: Ursus arctos, Meles anakuma, Martes zibellina, Gulo gulo and Lutra lutra. Bone remains of brown bear (Ursus arctos) predominate; scant tooth-marks of large carnivores on their surfaces suggest bears to have been only occasional prey, dying mainly when overwintering in the cave. The presence of Asian badger (Meles anakuma) and true otter (Lutra lutra), whose findings are not known northwardly, provide the possibility to regard southern regions of the Russian Far East as a refuge, where these species survived during the Late Pleistocene.
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13

Marinković, Darko, Jòzsef Özvegy, Milan Aničić, Ivana Vučićević, Slađan Nešić y Vladimir Kukolj. "Gastric Dilatation and Volvulus in Brown Bear (Ursus arctos)". Acta Veterinaria 66, n.º 3 (1 de septiembre de 2016): 422–28. http://dx.doi.org/10.1515/acve-2016-0036.

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Abstract Gastric dilatation and volvulus is a life-threatening condition characterized by rapid accumulation of food and gases that cause displacement and distension of the stomach. The large and giant, deep-chested breeds of dogs are at higher risk for developing the gastric dilatation and volvulus. Uncommonly, it can also develop in cats, but it is also described in free-range polar bears. A case of gastric dilatation and volvulus in a brown bear (Ursus arctos) is described in this paper. This case was characterized by lack of any previous symptoms, sudden death, as well as macroscopic findings during necropsy - twisted distended stomach, congested displaced spleen and necrotic gastric wall. According to the available data this is the first described case report of the gastric dilatation and volvulus in brown bear (Ursus arctos).
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14

Cattet, M. "Abnormal Sexual Differentiation in Black Bears (Ursus americanus) and Brown Bears (Ursus arctos)". Journal of Mammalogy 69, n.º 4 (29 de noviembre de 1988): 849–52. http://dx.doi.org/10.2307/1381646.

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15

Cronin, Matthew A. y Michael D. MacNeil. "Genetic Relationships of Extant Brown Bears (Ursus arctos) and Polar Bears (Ursus maritimus)". Journal of Heredity 103, n.º 6 (2012): 873–81. http://dx.doi.org/10.1093/jhered/ess090.

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16

Kosintsev, P. A., O. P. Bachura y V. S. Panov. "Remains of Brown Bear (Ursus arctos L.) from the Kaninskaya Cave Sanctuary in the Northern Urals". Archaeology, Ethnology and Anthropology of Eurasia (Russian-language). 46, n.º 2 (2018): 131–39. http://dx.doi.org/10.17746/1563-0102.2018.46.2.131-139.

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17

Paczkowski, John, Ivan V. Seryodkin y Vladimir V. Zhakov. "BROWN BEAR (URSUS ARCTOS) (CARNIVORA, MAMMALIA) DENS OF THE KRONOTSKY NATURE RESERVE". Povolzhskiy Journal of Ecology 17, n.º 1 (2018): 101–5. http://dx.doi.org/10.18500/1684-7318-2018-1-101-105.

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18

Balseiro, Ana, Laura Polledo, José Tuñón y Juan Francisco García Marín. "Anencephaly and Severe Myelodysplasia in a Stillborn Brown Bear (Ursus arctos arctos)". Animals 12, n.º 18 (8 de septiembre de 2022): 2345. http://dx.doi.org/10.3390/ani12182345.

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Malformations in the development of the neural tube have been described to be associated with different aetiologies, such as genetic factors, toxic plants, chemical products, viral agents, or hyperthermia. A twenty-four-year-old female Eurasian brown bear (Ursus arctos arctos), permanently in captivity and kept under food and management control, gave birth to a stillborn cub at the end of gestation. Several malformations resulting from the anomalous development of the neural tube, not previously reported in bears, were observed, such as anencephaly, hypoplasia, micromyelia, severe myelodysplasia, syringomyelia, and spina bifida. Multiple canal defects (e.g., absence) were also observed in the spinal cord. In some regions, the intradural nerve roots surrounded the spinal cord in a diffuse and continuous way. The aetiology remains unidentified, although the advanced age of the mother and/or folic acid deficit might have been the possible causes of this disorder. Supplements of folate given to the mother before and during early pregnancy may have reduced the incidence of neural tube defects. That supplementation should be considered when the reproduction of bears is to occur in captivity, in order to prevent the loss of future generations of this endangered species.
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19

Pigoli, C., M. Tecilla, A. Bianchi, P. Roccabianca, G. Ghisleni y L. R. Gibelli. "Pheochromocytoma and Malignant Insulinoma in an Eurasian Brown Bear (Ursus arctos arctos)". Journal of Comparative Pathology 174 (enero de 2020): 163. http://dx.doi.org/10.1016/j.jcpa.2019.10.075.

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20

Cronin, Matthew A., Steven C. Amstrup, Gerald W. Garner y Ernest R. Vyse. "Interspecific and intraspecific mitochondrial DNA variation in North American bears (Ursus)". Canadian Journal of Zoology 69, n.º 12 (1 de diciembre de 1991): 2985–92. http://dx.doi.org/10.1139/z91-421.

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We assessed mitochondrial DNA variation in North American black bears (Ursus americanus), brown bears (Ursus arctos), and polar bears (Ursus maritimus). Divergent mitochondrial DNA haplotypes (0.05 base substitutions per nucleotide) were identified in populations of black bears from Montana and Oregon. In contrast, very similar haplotypes occur in black bears across North America. This discordance of haplotype phylogeny and geographic distribution indicates that there has been maintenance of polymorphism and considerable gene flow throughout the history of the species. Intraspecific mitochondrial DNA sequence divergence in brown bears and polar bears is lower than in black bears. The two morphological forms of U. arctos, grizzly and coastal brown bears, are not in distinct mtDNA lineages. Interspecific comparisons indicate that brown bears and polar bears share similar mitochondrial DNA (0.023 base substitutions per nucleotide) which is quite divergent (0.078 base substitutions per nucleotide) from that of black bears. High mitochondrial DNA divergence within black bears and paraphyletic relationships of brown and polar bear mitochondrial DNA indicate that intraspecific variation across species' ranges should be considered in phylogenetic analyses of mitochondrial DNA.
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21

Catalano, S., M. Lejeune, P. Tizzani, G. G. Verocai, H. Schwantje, C. Nelson y P. J. Duignan. "Helminths of grizzly bears (Ursus arctos) and American black bears (Ursus americanus) in Alberta and British Columbia, Canada". Canadian Journal of Zoology 93, n.º 10 (octubre de 2015): 765–72. http://dx.doi.org/10.1139/cjz-2015-0063.

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Between May 2011 and June 2013, we collected the carcasses and gastrointestinal tracts of 40 American black bears (Ursus americanus Pallas, 1780) and 13 grizzly bears (Ursus arctos L., 1758) from populations of Alberta and British Columbia, Canada. Specimens were examined for helminths, which were identified to the species level by applying an integrated morphological and molecular approach. Our goal was to investigate parasite biodiversity and infection parameters in the sampled grizzly and black bears. We found seven parasite taxa: Dirofilaria ursi Yamaguti, 1941, Baylisascaris transfuga (Rudolphi, 1819), Uncinaria rauschi Olsen, 1968, Uncinaria yukonensis (Wolfgang, 1956), Taenia arctos Haukisalmi, Lavikainen, Laaksonen and Meri, 2011, Diphyllobothrium dendriticum (Nitzsch, 1824), and Diphyllobothrium nihonkaiense Yamane, Kamo, Bylund and Wikgren, 1986. The statistical significance of infection prevalence, intensity, and abundance for each helminth species was assessed relative to host species, gender, age class, sampling season, and location. This is the first unequivocal report of the potentially zoonotic tapeworms D. dendriticum and D. nihonkaiense in North American bears. Furthermore, we provide insight into the biology and ecology of the nematodes B. transfuga, D. ursi, and species of Uncinaria Frölich, 1789, and enrich the information available on the recently described tapeworm T. arctos.
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22

Bica, I., M. Solomonovich, K. Deutscher, A. Garrett, K. Burak y H. Peacock. "Ursus arctos horribilis: dynamic modeling of Canadian population". Theoretical and Applied Ecology, n.º 4 (2019): 45–54. http://dx.doi.org/10.25750/1995-4301-2019-4-045-054.

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23

Mitchell, Jeffrey W., Stephanie A. Thomovsky, Annie V. Chen, Arthur W. Layton, Gary Haldorson, Russell L. Tucker y Gregory Roberts. "MEDULLOBLASTOMA IN A GRIZZLY BEAR (URSUS ARCTOS HORRIBLIS)". Journal of Zoo and Wildlife Medicine 46, n.º 3 (septiembre de 2015): 624–28. http://dx.doi.org/10.1638/2014-0118.1.

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24

Fagen, Robert y Johanna M. Fagen. "Individual Distinctiveness in Brown Bears, Ursus arctos L". Ethology 102, n.º 2 (26 de abril de 2010): 212–26. http://dx.doi.org/10.1111/j.1439-0310.1996.tb01119.x.

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25

Manchi, Sabrina y Jon E. Swenson. "Denning behaviour of Scandinavian brown bears Ursus arctos". Wildlife Biology 11, n.º 2 (junio de 2005): 123–32. http://dx.doi.org/10.2981/0909-6396(2005)11[123:dbosbb]2.0.co;2.

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26

Young, W. A. "WEIGHT RECORDS OF KODIAK HEARS, (Ursus arctos middendorffi)". International Zoo Yearbook 4, n.º 1 (18 de diciembre de 2007): 124. http://dx.doi.org/10.1111/j.1748-1090.1963.tb03642.x.

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27

RICHTER, JANE. "Brown Bear (Ursus arctos) from Kainsbakke, East Jutland". Journal of Danish Archaeology 5, n.º 1 (enero de 1986): 125–34. http://dx.doi.org/10.1080/0108464x.1986.10589962.

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28

Deecke, Volker B. "Tool-use in the brown bear (Ursus arctos)". Animal Cognition 15, n.º 4 (25 de febrero de 2012): 725–30. http://dx.doi.org/10.1007/s10071-012-0475-0.

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29

Gomes-Alves, S., M. Alvarez, M. Nicolas, C. Martínez-Rodríguez, S. Borragán, C. A. Chamorro, L. Anel y P. de Paz. "Salvaging urospermic ejaculates from brown bear (Ursus arctos)". Animal Reproduction Science 150, n.º 3-4 (noviembre de 2014): 148–57. http://dx.doi.org/10.1016/j.anireprosci.2014.09.007.

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30

Саломашкина, В. В., М. В. Холодова, У. А. Семенов, А. С. Мурадов y А. Малхасян. "Генетическая изменчивость бурого медведя ( Ursus arctos L., 1758)". Генетика 52, n.º 12 (2016): 1437–47. http://dx.doi.org/10.7868/s0016675816120109.

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31

Catalano, Stefano, Manigandan Lejeune, Guilherme G. Verocai y Pádraig J. Duignan. "First report of Taenia arctos (Cestoda: Taeniidae) from grizzly (Ursus arctos horribilis) and black bears (Ursus americanus) in North America". Parasitology International 63, n.º 2 (abril de 2014): 389–91. http://dx.doi.org/10.1016/j.parint.2013.12.012.

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32

Petronio, Carmelo, Emanuele di Canzio y Giuseppe di Stefano. "Petronio:Morphological and biometrical differences in the limb bones of Ursus arctos and Ursus spelaeus and phylogenetical considerations on the two species". Palaeontographica Abteilung A 269, n.º 4-6 (29 de octubre de 2003): 137–52. http://dx.doi.org/10.1127/pala/269/2003/137.

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33

Gorshunov, Maxim B. "Brown bear (Ursus arctos) of Zavyalov Island (Sea of Okhotsk): Abundance and possible migration routes". Amurian Zoological Journal 14, n.º 2 (2022): 224–30. http://dx.doi.org/10.33910/2686-9519-2022-14-2-224-230.

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34

Nevin, Owen T. y Barrie K. Gilbert. "Observations of Autumn Courtship and Breeding in Brown Bears, Ursus arctos, from Coastal British Columbia". Canadian Field-Naturalist 119, n.º 3 (1 de julio de 2005): 449. http://dx.doi.org/10.22621/cfn.v119i3.159.

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Over a period of four years, autumn courtship behaviour in Brown Bears (Ursus arctos) was observed on three separate occasions, with copulation observed once and two litters of cubs potentially resulting from autumn breeding. These are the first recorded observations of these behaviours.
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35

Ågren, Erik, Arne Söderberg y Torsten Mörner. "Fallot's Tetralogy in a European Brown Bear (Ursus arctos)". Journal of Wildlife Diseases 41, n.º 4 (octubre de 2005): 825–28. http://dx.doi.org/10.7589/0090-3558-41.4.825.

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36

Nak, Deniz, I. Taci Cangul, Yavuz Nak, Huseyin Cihan y Nureddin Celimli. "Tubulopapillary Mammary Carcinoma in a Brown Bear (Ursus arctos)". Journal of Wildlife Diseases 44, n.º 2 (abril de 2008): 505–8. http://dx.doi.org/10.7589/0090-3558-44.2.505.

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37

SUEL, H. "BROWN BEAR (URSUS ARCTOS) HABITAT SUITABILITY MODELLING AND MAPPING". Applied Ecology and Environmental Research 17, n.º 2 (2019): 4245–55. http://dx.doi.org/10.15666/aeer/1702_42454255.

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38

Hadžiomerović, Nedžad, Rizah Avdić, Senad Kovačević, Faruk Tandir y Pamela Bejdić. "Spondyloarthropathy in a captive female brown bear (Ursus arctos)". Journal of Advances in VetBio Science and Techniques 4, n.º 3 (31 de diciembre de 2019): 1–4. http://dx.doi.org/10.31797/vetbio.571424.

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39

Baryshnikov, G. F. "Late Pleistocene brown bear (Ursus arctos) from the Caucasus". Russian Journal of Theriology 9, n.º 1 (21 de febrero de 2011): 9–17. http://dx.doi.org/10.15298/rusjtheriol.09.1.02.

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40

Salomashkina, V. V., M. V. Kholodova, U. A. Semenov, A. S. Muradov y A. Malkhasyan. "Genetic variability of brown bear (Ursus arctos L., 1758)". Russian Journal of Genetics 53, n.º 1 (enero de 2017): 108–17. http://dx.doi.org/10.1134/s1022795416120103.

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41

SWENSON, Jon E., Pierre TABERLET y Eva BELLEMAIN. "Genetics and conservation of European brown bears Ursus arctos". Mammal Review 41, n.º 2 (25 de enero de 2011): 87–98. http://dx.doi.org/10.1111/j.1365-2907.2010.00179.x.

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42

STEYAERT, Sam M. J. G., Anders ENDRESTØL, Klaus HACKLÄNDER, Jon E. SWENSON y Andreas ZEDROSSER. "The mating system of the brown bear Ursus arctos". Mammal Review 42, n.º 1 (12 de abril de 2011): 12–34. http://dx.doi.org/10.1111/j.1365-2907.2011.00184.x.

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43

Mattson, David J. "Use of ungulates by Yellowstone grizzly bears Ursus arctos". Biological Conservation 81, n.º 1-2 (julio de 1997): 161–77. http://dx.doi.org/10.1016/s0006-3207(96)00142-5.

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44

Støen, Ole-Gunnar, Eva Bellemain, Solve Sæbø y Jon E. Swenson. "Kin-related spatial structure in brown bears Ursus arctos". Behavioral Ecology and Sociobiology 59, n.º 2 (2 de agosto de 2005): 191–97. http://dx.doi.org/10.1007/s00265-005-0024-9.

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45

Støen, Ole-Gunnar, Andreas Zedrosser, Per Wegge y Jon E. Swenson. "Socially induced delayed primiparity in brown bears Ursus arctos". Behavioral Ecology and Sociobiology 61, n.º 1 (29 de junio de 2006): 1–8. http://dx.doi.org/10.1007/s00265-006-0231-z.

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46

ØSTBYE, EIVIND, STEIN-ERIK LAURITZEN, KJARTAN ØSTBYE y ØYSTEIN WIIG. "Holocene brown bear (Ursus arctos L.) from Norwegian caves". Boreas 35, n.º 2 (28 de junio de 2008): 296–316. http://dx.doi.org/10.1111/j.1502-3885.2006.tb01159.x.

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Серёдкин, И. В., А. В. Костыря y Д. М. Гудрич. "Маркировочная деятельность бурого медведя (Ursus arctos) на Сихотэ-Алине". Зоологический журнал 93, n.º 5 (2014): 694–702. http://dx.doi.org/10.7868/s0044513414050079.

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Østbye, Eivind, Stein-Erik Lauritzen, Kjartan Østbye y Øystein Wiig. "Holocene brown bear ( Ursus arctos L.) from Norwegian caves". Boreas 35, n.º 2 (1 de mayo de 2006): 296–316. http://dx.doi.org/10.1080/03009480600578107.

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Anel, L., M. Álvarez, F. Martínez-Pastor, S. Gomes, M. Nicolás, M. Mata, AF Martínez, S. Borragán, E. Anel y P. de Paz. "Sperm Cryopreservation in Brown Bear (Ursus arctos): Preliminary Aspects". Reproduction in Domestic Animals 43 (octubre de 2008): 9–17. http://dx.doi.org/10.1111/j.1439-0531.2008.01248.x.

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Saladié, P., R. Huguet, C. Díez, A. Rodríguez-Hidalgo y E. Carbonell. "Taphonomic modifications produced by modern brown bears (Ursus arctos )". International Journal of Osteoarchaeology 23, n.º 1 (24 de enero de 2011): 13–33. http://dx.doi.org/10.1002/oa.1237.

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