| studies on endoparasites of the black bear (ursus americanus) in the southeastern united states. | examination of 53 black bears (ursus americanus) from six states in the southeastern united states revealed at least 17 species of endoparasites, including sarcocystis sp., spirometra mansonoides (spargana), macracanthorhynchus ingens, ancylostoma caninum, arthrocephalus lotoris, baylisascaris transfuga, capillaria aerophila, capillaria putorii, crenosoma sp., cyathospirura sp., dirofilaria immitis, gnathostoma sp., gongylonema pulchrum, microfilariae, molineus barbatus, physaloptera sp. and str ... | 1978 | 418189 |
| helminths recovered from black bears in the peace river region of northwestern alberta. | a total of 91 free-ranging black bears (ursus americanus) from the peace river region of northwestern alberta was examined for helminths. four species, baylisascaris transfuga, taenia krabbei, taenia hydatigena and dirofilaria ursi, were found. none of the bears was heavily infected. results are compared with other similar north american surveys. | 1979 | 459048 |
| seasonal changes in the prevalence of ova of diphyllobothrium ursi and baylisascaris transfuga in the feces of the black bear (ursus americanus). | an analysis of 114 samples of feces from black bears (ursus americanus) from la verendrye park, quebec revealed that the prevalence of eggs of diphyllobothrium ursi and baylisascaris transfuga varied seasonally. d. ursi ova were most prevalent during the summer and fall and at their lowest in spring while the converse was true for b. transfuga. this phenomenon possibly is associated with the cessation of feeding during the winter denning of black bears. | 1978 | 567699 |
| ecto- and endoparasites of the black bear in northern wisconsin. | parasites collected from free-ranging black bears, ursus americanus, in northern wisconsin included dermacentor variabilis, d. albipictus, ixodes scapularis, demodex sp., trichodectes pinguis euarctidos, baylisascaris transfuga and dirofilaria ursi. mange, possibly caused by the demodex sp., also was observed. dental caries were common and periodontal disease was observed in one animal. | 1978 | 633522 |
| parasites of black bears of the lake superior region. | parasites collected from free-ranging black bears, ursus americanus pallas, 1780, from northeastern minnesota or northern michigan include the dog tick, dermacentor variabilis (say, 1821), the winter tick, d. albipictus (packard, 1869), a louse, trichodectes pinguis euarctidoes hopkins, 1954, an ascarid worm, baylisascaris transfuga (rudolphi, 1819), a filarial worm, dirofilaria ursi yamaguti, 1941, taeniid tapeworms, and unidentified fleas. the broad fish tapeworm, diphyllobothrium latum (linna ... | 1975 | 1142551 |
| helminths of the black bear, ursus americanus, in new brunswick. | between may 1989 and october 1991, 544 black bears ursus americanus were collected in new brunswick and examined for trichinella spiralis larvae. in addition, 110 of these bears were examined for filarial nematodes, and the entire intestinal tracts of 12 bears were examined for intestinal helminths. four species of helminths were identified from these bears, including trichinella spiralis, dirofilaria ursi, baylisascaris transfuga, and taenia krabbei. this represents the first documentation of t ... | 1994 | 8195953 |
| parasitic helminths of black bear cubs (ursus americanus) from florida. | twenty-two florida black bear (ursus americanus floridanus) cubs (< or = 12 mo old) from florida were examined for endoparasites between 1998 and 2003. eleven species of helminths were found (8 nematodes, 2 trematodes, and 1 acanthocephalan). the most prevalent helminths were ancylostoma caninum (64%), macracanthorhynchus ingens (36%), strongyloides sp. (27%), baylisascaris transfuga (23%), and a. tubaeforme (14%). new host records include a. tubaeforme and brachylaima virginianum. this is the f ... | 2004 | 15040687 |
| fatal baylisascaris larva migrans in a colony of japanese macaques kept by a safari-style zoo in japan. | a colony of japanese macaques (macaca fuscata fuscata) kept by a safari-style zoo in japan experienced 9 sporadic cases of fatal neurological diseases, such as epilepsy and posterior paralysis, during the 12 yr from 1989 to 2001. this macaque colony consisted of approximately 30 animals, on average, during this period, and the macaques shared their living space with ii american black bears (ursus americanus) harboring zoonotic roundworms (baylisascaris transfuga). close to this enclosure, a cote ... | 2005 | 16108577 |
| helminths of the black bear in quebec. | twenty-one complete carcasses of black bears, ursus americanus , together with 34 intestinal tracts, 86 diaphragms and 168 faecal droppings collected between june, 1971 and november, 1972 in the province of quebec were examinel for helminths. species found and their prevalence were as follows: dirofilaria ursi in 57%; uncinaria yukonensis in 6%; baylisascaris transfuga in 21%; larvae of trichinella spiralis in less than 1%; diphyllobothrium ursi in 36%; and taenia krabbei and taenia hydatigena i ... | 1977 | 24228968 |