Results 161 to 170 of about 9,987 (212)

Clinical crenosomosis in a black bear (Ursus americanus)

Veterinary Parasitology: Regional Studies and Reports, 2020
An orphaned black bear (Ursus americanus) cub, estimated to be 9 months-of-age was presented to a wildlife rehabilitation facility in December of 2016. The cub was afebrile, under-weight (6.8 kg) and had a cough condition. Centrifugal sugar fecal flotation examination failed to detect any gastrointestinal helminth or protozoan parasites, but revealed ...
Haifaa A, Mahjoub, Nicole, Murphy, Paula-Marie, Mather, Spencer J, Greenwood, Gary A, Conboy   +4 more
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A polyomavirus detected in American black bear (Ursus americanus)

Archives of Virology, 2021
Polyomaviruses are ancient DNA viruses that infect several species of animals. While recognition of the family Polyomaviridae has grown rapidly, there are few studies that consider their potential association with disease. Carnivora are a diverse and widespread order affected by polyomaviruses (PyVs) that have co-evolved with their hosts for millions ...
Arturo Oliver-Guimerá, Alžběta Hejtmánková, Kenneth Jackson, Patricia A. Pesavento   +3 more
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Ursus americanus

2009
6. American Black Bear Ursus americanus French: Ours noir / German: Baribal / Spanish: Oso negro americano Taxonomy. Ursus americanus Pallas, 1780, eastern North America. Genetic comparisons among the various purported subspecies have not been performed, except in a few cases.
Don E. Wilson, Russell A. Mittermeier
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Pityrosporum pachydermatis in a black bear (Ursus americanus)

Medical Mycology, 1978
Pityrosporum pachydermatis was repeatedly isolated from portions of alopecic tissue from the throax and ears of a black bear cub (Ursus americanus). Yeastlike cells morphologically identical with those of P. pachydermatis were observed in stained tissue sections. This is the first reported association of this yeast with a member of the family Ursidae.
I F, Salkin, M A, Gordon, W B, Stone
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Black Bear (Ursus americanus) Bile Composition: Seasonal Changes

Comparative Biochemistry and Physiology Part C: Pharmacology, Toxicology and Endocrinology, 1997
Gallbladder contents from 8 active and 14 dormant black bears were analyzed for individual bile acids by high-performance liquid chromatography and for cholesterol, phospholipids, sodium, potassium, calcium, magnesium, zinc, iron, and copper.
J D, Jones, P E, Zollman
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Ursus americanus subsp. americanus Pallas 1780

2005
Published as part of Wilson, Don E. & Reeder, DeeAnn, 2005, Order Carnivora, pp. 532-628 in Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 1, Baltimore :The Johns Hopkins University Press on page 588, DOI: 10.5281/zenodo ...
Wilson, Don E., Reeder, DeeAnn
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Muscular Sarcocystis Infection in a Bear (Ursus americanus)

The Journal of Parasitology, 1998
Sarcocysts of an unidentified Sarcocystis species were found in sections of skeletal muscles of a black bear (Ursus americanus) from North Carolina. Two sarcocysts in a section measured 45 x 37.5 microm and 67.5 x 50 microm and had a thin (
J P, Dubey, M J, Topper, F B, Nutter
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Demodicosis in black bears (Ursus americanus) from Florida

Journal of Wildlife Diseases, 1993
Demodicosis was diagnosed in five black bears (Ursus americanus) from north-central Florida. The first bear examined, a 5-yr-old male, had severe alopecia except for the dorsal neck, paws, and ears. The skin was characterized by moderate orthokeratotic hyperkeratosis, and mild to moderate follicular hyperkeratosis.
D J, Forrester, M G, Spalding, J B, Wooding   +2 more
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Roadkill risk model of black bear (Ursus americanus) in Mexico

Environmental Monitoring and Assessment, 2023
One of the most obvious impacts of roads is roadkill, a problem that is recently being addressed in Mexico. However, there are economic and human resource limitations to monitor the entire road network, assess its impacts, and propose mitigation measures. The black bear (Ursus americanus) is a top predator and the largest terrestrial mammal distributed
Zuleyma Zarco-González, Octavio Monroy-Vilchis   +1 more
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Ursus americanus Pallas 1780

2005
Ursus americanus Pallas 1780 Ursus americanus Pallas 1780, Spicil. Zool., 14: 5. Type Locality: Not given. In Pallas' (1780) description, he refered to Brickell (1737) who implied North Carolina (USA) by stating they "are very common in this province." Palmer (1904) listed the locality as "eastern North America".
Wilson, Don E., Reeder, DeeAnn
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